PREAMBLE
Frankly
writing, it is better late than never for our people to be saved.
One humbly, pleads that someone tackles the problems of floods,
soil and gully erosion and landslides in Igbo Land. It will
be a historical success story if one can deal deathblows on
these ecological disasters ravaging the different towns and
communities in Igbo Land. The Igbo States of Abia, Anambra,
Enugu, Ebonyi and Imo that form the Southeast zone of Nigeria
have been suffering from these horrendous ecological hazards
that require most serious control programmes.
Unfortunately, not much has been done to tackle these mammoth
problems. I have a nagging feeling that Nigeria and the world-at-large
may not have known the extent of these ecological problems;
hence, the need for writing this paper that has taken so much
time and pains to do. As we write now, many people and communities
are going through massive sufferings depicting what we have
described below. We do fervently call on you, someone out there,
to do something to stop the ecological nightmares and alleviate
the travails of the people who have become so helpless before
the scourge of floods, gullies and landslides. God will reward
you well for your efforts.
One may decide to read some sections if not all at one time.
The primary objective of the project is to provide enough information
so that the ecological problems can be given the maximum exposure
and understanding. Kindly read on and assist please.
1. INABILITY AND APPARENT FAILURES OF NDIGBO TO MAKE
A GOOD CASE ON ECOLOGICAL DISASTERS/HAZARDS
It is estimated in this study that about N100.5 billion (one
hundred and a half billion naira) would be required to tackle
effectively the ecological problems of floods, soil and gully
erosion and landslides in Igboland at first instance for a year.
One is most amazed that despite all efforts made by Ndigbo on
our ecological problems to the Federal Governments of Nigeria
over the years, none of them has taken the ecological problems
as a serious matter that requires major funding and actions.
It is also most shocking that in this period of democracy when
people ought to benefit from democratic dividends, Ndigbo seem
to be told repeatedly to carry alone their burdens of environmental
problems and debilitating annual ecological disasters. Worse
still, the Federal officials tend to spend heavy amounts of
funds tackling less threatening and less dangerous ecological
problems in parts of the north and west while doing nothing
in Igbo Land (the southeast) where damaging ecological problems
abound! The entire scenario is tantamount to a serious denial
of fundamental human rights of existence, good life, ownership
to lands and property and safety of the people in the various
communities. All concerned must do everything possible to avert
the impending and ominous ecological Armageddon or geoanthropocide
that now threatens the Igboland and beyond. According to credible
reports, Anambra, Abia, Imo, Enugu and Ebonyi States have over
750, 650, 500, 400 and 250 major erosion sites respectively.
This gully census is conservative and incomplete since smaller
and young gullies were not enumerated. These younger gullies
shall ultimately mature within next year and pose as serious
a hazard as older ones. But they must be included in control
programmes as recommended below.
Many political Representatives from Igboland at Federal, State
and LGA levels have not presented to the Federal authorities,
forcefully and successfully, the havoc, decay and destruction
of their communities caused by floods, erosion, gullies, landslides,
mass wasting and denudation. These political Representatives
have not properly-presented our ecological disasters to the
appropriate official quarters despite genuine efforts people
have made to explain and persuade them to do in order to secure
some funding and assistance from the Federal government. Today,
our people are dying or losing lands and millions-of-naira-worth
of property to erosion, gullies or landslides! One is encouraged
to write this letter so that you can be used by God to put across,
nationwide and worldwide for solution, the truth of the ecological
disasters ravaging the entire environment of Igboland. At the
rate and speed gully erosion is advancing and spreading all
over the Igboland, one can predict with a high degree of certainty
that many communities shall be no more in the next ten years
when they would have been wiped out with their lands! I do believe
that your understanding and assistance would make it possible
for our Governments and the world to be more-informed of our
present ecological malaise.
2. THE DISASTROUS PROBLEMS OF FLOODS, SOIL AND GULLY
EROSION AND LANDSLIDES IN IGBOLAND.
Gully erosion and landslides are terminal and cancerous ecological
diseases that destroy, within minutes and hours, lands formed
with natural nutrients over hundreds, thousands or millions
of years. Soil erosion steadily removes, after a few millimetres
or centimetres of rainfall that must have occurred within some
minutes, thin layers of rich soils and sediments that can hardly
be replaced thousands of years later. It is more purposeful
and desirable to stop erosion from occurring right at the onset
than to check it or apply remedies after soil and gully erosion
must have taken off and the damages must have been done. The
problems that result from erosion and gullies are many and varied.
They include human, material, political, psychological, sociological,
economic and spiritual problems all rolled into one! Soil and
gully erosion and landslides have become pandemic all over Igboland.
Huge volumes of sedimentary materials, soils and blocks of lands
are, continuously, moved by various rivers, annually, into the
Atlantic Ocean. These rivers include Ebonyi, Imo, Uchu, Aghomili,
Odo, Mamu, Anambra, Idemili, Niger, etc. One may realize that
these sediments that were deposited over the years during Geologic
times were formed, and are still forming, the Niger Delta where
petroleum and natural gas are exploited. While these precious
oil-forming sediments are being eroded upstream and deposited
into lowlands, some communities are suffering inexorably and
indescribably from gully erosion scourges in upland areas.
Almost every town in Anambra, Enugu, Ebonyi, Imo and Abia States
are being continuously devastated. Agulu, Nanka, Alor, Oraukwu,
Oko, Igboukwu, Umunze, Achina, Umuchu, Onitsha, Nkpor, Obosi,
etc. people and their lands are being destroyed on a daily basis.
Human, animal and plant lives are lost. Lakes, springs, rivers,
marshlands, water schemes, roads, bridges, NEPA and NITEL lines
are destroyed. Most agricultural lands and wetlands are dead
and useless as caused by erosion because of the volumes of sandy
silt that have been deposited on top of the former rich soils.
Sometimes, the sandy portions are heavily-leached by fast downward
percolating groundwater and, thereby, rendering such soils infertile
for farming. Such soils never accept any fertilizer since it
is quickly leached out as soon as it is applied. The lakes,
springs, rivers, reservoirs, etc. are being silted up with sediments
and soils, and hence, lost. Such water bodies are gradually
being filled up with transported materials, polluted, contaminated
and destroyed. These waters that used to supply potable water
for domestic uses are being killed by erosion. Pollution, contamination
or eutrophication kills the fish, animal and plant-lives within
these surface water bodies. Fish farmers along major rivers
have lost their means of livelihood because of poor fish catches
they now make. The major water schemes at the urban centres
of Awka, Onitsha, Nnewi, Enugu, Owerri, Umuahia, Aba, etc. are
being damaged annually, causing severe socioeconomic losses,
pollution, contamination and disruption of water supplies. The
resultant effect is the desperate attempts by the poor to buy
or collect water of doubtful quality for consumption. This causes
outbreaks of epidemics of water-borne diseases, illness and
death.
Most road networks in Igboland, be they Federal, State or Local
governments are destroyed every year particularly during the
rains. They are washed away, cut in places, gullied, moved away
into the bush by landslides, eroded or channelled into erosion
spots, channels or port holes, etc. Some of these roads have
become flood channels while the drainages, where they exist
at all, have either been washed away or abandoned. Many of the
road builders do not help matters anyway! Some design roads
and carry out construction work without considering the implications
and the consequent destructive effects of gully erosion on the
long run. Sometimes, without blame, they construct these roads
at the heart of the rainy season. As the roads are built along
during the heavy rains, they are washed away or weakened by
flood. The nation’s money goes down the drain! The constructed
roads do not have adequate drainages to carry off the huge floods
of rainwater. These drains may be too narrow to contain the
volume of water and may not be deep and long enough to carry
away floods to safe levels into lowlands, valleys or surface
water bodies.
Also, the construction materials may be of poor quality and
hence, poorly-resistant to erosion, corrasion and corrosion
that do eventually result in engineering failures of roads.
The supervision of road construction, sometimes by inexperienced
officials or cheap non-professionals, may be lax, unprofessional
and fraudulent. Some of these problems might have arisen because
of possible poor financing, fraudulent bidding and award of
road contracts. This manner of strange contract award seems
to be peculiar to Igboland. NEPA and NITEL lines are annually
dislocated or damaged every rainy season. Some bridges are moved
away by landslides or undermined by gully erosion. Houses, churches,
village shrines, schools, markets, play grounds, open spaces,
blocks of ancient forests and trees, industrial centres, water
supply mains and pipes, etc. in various towns and communities
have been, damaged, uprooted, displaced or destroyed. Human
lives have been regularly lost as can be catalogued from Agulu,
Nanka, Alor, Oraukwu, Umuchu, Enugwu-Ukwu, Obosi and Umunze,
etc. In Anambra State, people have relocated from their places
of abode, sometimes, for up to three or four times in the last
thirty-five years as they ran away from advancing gullies that
carried away their homes.
Ndigbo, have such a fanatical attachment to land, and as a result,
they find it very hard to abandon their homes to any authority
including the advancing gullies. They are culturally attached
to their lands and homes that were developed over the years;
where they were born and brought up; and have been a home to
the graves of their ancestors and life-savings. At such strange
occurrences of gullying and landslides, graves have been dug
up and desecrated by gullies while desperate efforts are made
by the owners to save such situations at the risk of their lives.
This is why fatalities are common in gully erosion-prone areas.
Also, the Igbo ethnic group refuses to be refugees under whatever
conditions. As a result, people struggle to hold on to their
property despite the fact that they are seen perching at the
edge of gullies. When they eventually driven out by gullies,
they reluctantly buy land to relocate. Some even go back to
the lowlands where the gullies have, temporarily, stabilized
to rebuild their houses and live there no matter the severe
odds, particularly in the area of communication when they find
it most difficult to reach their relatives who live upland.
This apparent absence of refugees or presence of large numbers
of displaced persons makes it difficult to read the actual human
damages caused by ecological disasters in Igboland.
The above mammoth environmental problems have precipitated massive
socio-economic losses and woes to the people and governments.
It has adversely-affected trade and commerce, industry and technological
development. Most social and economic activities have been dislocated
while infrastructures have been destroyed. It is so difficult
to entrain sustainable development because whatever is built
is gradually eroded or destroyed. Worst still, these ecological
problems seem to have been ignored by Federal and State governments
and political representatives. Something most positive and drastic
must be done now and urgently too, to save our people and their
lands from erosion, gullies and landslides.
3. REAL, OBSERVABLE AND SPECIFIC ECOLOGICALLY-CAUSED
DISASTERS IN IGBOLAND
Terrible disasters have befallen many people in the erosion,
gullying and landslide-prone areas. Many people have been forced
to become very fetish and have resorted to idolatry while some
others have turned to religious zealotry, all in attempt to
stop the advancing gullies and landslides that destroy their
communities. Many have lost faith in their governments and fellow
man; they now resort to fervent prayers to save them from the
annual ecological disasters! There is the case of young men
who travelled from Agulu to Awgbu one morning for a traditional
marriage ceremony. On their way to the ceremony, the road was
safe. On their way back late in the evening, they never knew
the former good road had been moved by a landslide that occurred
in the afternoon into an adjoining gully. The party of over
fifteen men and women did perish when their vehicle fell into
the chasm, 90m below. The happy marriage had turned into a calamity!
Once an old woman without a child refused to move out from her
compound that was threatened by a landslide at Nanka. All pleadings
from her relations proved abortive. She could not abandon the
place she had made her home with her late husband all her life
as well as the grave of her loved one. She was there until one
day when the landslide struck. She found herself at the bottom
of the gully. Rescued she was, by some brave villagers but not
until lives of two rescuers were lost as they were swallowed
by moving sands while they were trying to pull her out! Sometime
ago, almost half of Amako-Nanka village moved as a block through
a landslide and crashed into a canyon gully, carrying lands,
houses, farms, animals, springs, etc. along! That was sometime
during the rainy season of 1988; there were hue and cry as well
as pandemonium all over the place. Luckily, no life was lost
but there were many who were badly injured and made homeless!
The then Federal Government timidly-provided cheap relief materials
as well as constructing few refuge houses that were rejected
and abandoned.
During the rains last two years, a landslide at Ubahu-Nanka,
carried hectares of lands away, wreaked great havoc and drove
away many inhabitants. At Agulu at the same period, parts of
Madonna Catholic Church lands and buildings were gullied away
and lost. At Obosi, Alor, Oraukwu, Oko, Umunze, Agulu-Ezechukwu,
Ekwulobia, Igboukwu, Achina, Umuchu, etc., similar destructive
calamities were in vogue. Many families and communities have
been sacked at Obosi, Agulu and Nanka over the last ten years!
Graves and family or church graveyards have been excavated and
destroyed. Recently during the last rains, part of the Ezekoro
forest lands together with its spring water, concrete and steel
tank reservoirs and the famous shrine at Achina town were pulled
away by a major landslide that crashed into the valley below,
causing massive destructions of property and farmlands. The
people of Achina have now lost their source of water supply
as well as their farms. The people of Umuchu town are now in
a terrible dilemma. The Umuchu-Umunze major road has been cut
into two. Dangerous gullies that now swallow people and vehicles
have expanded. The Achina-Umuchu, Akokwa-Umuchu and Uga-Umuchu
roads have been cut as well at several points. The great markets
of Nkwor-Uchu, Oye-Achina, Oye-Uga and Nkwor-Umunze are now
almost impossible for the people of Umuchu to go to since most
of the roads are no more accessible! The Umuchu and Achina towns
have been severed into pieces by many gullies; farmlands and
spring water sources have been lost; the Nkwor market is now
a caricature of its former self as it has gully holes and channels
all over.
All the Federal, State, Local Governments and community roads
are adversely-affected by ecological problems. The Enugu-Onitsha,
Onitsha-Owerri, Enugu-PortHarcourt, Oba-Nnewi-Okigwe, Nnewi-Ekwulobia-Umunze-Ibinta-Okigwe,
Awka-Ekwulobia-Orlu-Owerri, Oba-Nnewi-Ozubulu-Okija-Ihembosi,
Umuahia-Ohafia, etc. roads are nothing to write home about as
they are annually denuded by erosion. The sad aspect is while
efforts are being made to reconstruct or rehabilitate some of
these roads, many more are being destroyed every year. Some
of the government officials, contractors and builders of these
roads hardly take into consideration the effects of gully erosion
in their project designs and constructions. As a result, what
they build is destroyed within a few years or even before their
very eyes! Our markets, industrial centres, mechanic villages,
motor parks, schools, church grounds, other commercial concerns
are hazarded by soil, channel and gully erosion and landslides
every year. The havocs done to these places during the rainy
season are better seen than described. Shops and houses are
uprooted and thrown away. Drainage channels are dug up and destroyed.
Roads are as deep as ever, having been converted into rough
drainage channels by earlier rains and gullies. Sometimes, ravaging
floods carry away and destroy the wares and commodities within
the markets. These cause severe socio-economic losses to the
business concerns and render developments unsustainable.
The World Bank-funded Greater Onitsha Water Scheme was destroyed
last year. This caused painful financial losses to Anambra State
Government that had to single handedly, struggle to restore
normal water supply to the teeming population at the commercial
centre. The giant Water Scheme was gullied and silted up with
sands and sediments that totally-covered the pumping station
and the machines to ceiling level. Complications ensued from
series of micro-slides and macro-landslides, causing water-hunger
and deprivations. Consequently, water-borne diseases threatened
and besieged the populace resulting in morbidity and fatalities.
Millions of naira is now being poured into the scheme in order
to bring the water supply system back to use. Other World Bank,
UNICEF, UNDP, UNIDO, FAO, UNICEF, NGOs, Federal/State/Local
governments, international aid agencies, etc. funded-projects
in water supplies, education, health, agriculture, hygiene and
sanitation, public health, environmental protection and sustainability,
etc. are threatened. Yet, not many people from the bedevilled
Igboland seem to care about the destructions. One fears that
many of our people seem to be jinxed!
There are many other psychologically-painful and destructive
aspects of the ecological problems that lack geometrical measurements
or quantitative analyses. Yet, these traumatic problems are
there and continue to stare at the people every year. Such problems
may be abstract, spiritual or social in nature. It is now very
difficult for the young men and women from the gully erosion
ravaged areas to get married. Their marriage encounters are
like a cow passing through the eye of a needle! Immediately
the man or woman has visited the potential in-laws for the first
time, it is hardly ever possible for a second trip to be made
because of the horrible experience during the first encounter.
There is no accessible road, the houses may be at bottom of
a steep valley or gully that is almost impossible to descend
or ascend. There is no potable water nearby, houses may be perching
at the edge of an advancing gully. Sometimes, there are no lands
to build new homes, etc. The bride or groom is no more encouraged
to invest further on the marriage-project as the hard components
of real love for a future of permanence have been eaten up by
erosion and gullies! Many old people refuse to evacuate from
their homes or leave dangerous gully-threatened zones because
those lands and homes have been where they lived the best of
their lives for years. They prefer to die in their homes than
leave despite appeals and persuasions. Many a time, they eventually
lose their lands, houses and lives to advancing gullies. It
is a nightmare for the people to find safe burial spots for
their dead loved ones since exhumation of corpses by gullies
and landslides is a common feature that is of annual occurrence.
4.
GEOLOGIC AND GEOMORPHIC CAUSES OF EROSION, GULLIES AND LANDSLIDES
IN IGBOLAND
Floods, soil and gully erosion and landslides have posed problems
in the geographical area described as the Southeast (Igboland)
even during Geologic times that spanned millions of years ago.
As a result of tectonic activities such as minor and major earthquakes
and tremors, land movements and slides, soil heaves, etc., lands
were broken up into blocks that became dislocated. These massive
blocks of lands moved away relative to one another to form cracks
on the ground. Some of the blocks of the earth moved up or down
or away from the other to form the cracks on the ground that
Geologists call faults, joints, grabens, etc.
These are later, over a long period of Geologic time, covered
up by deposits of clays, sands, soils, and debris etc. to provide
a normal land surface. However, these geologic cracks of faults,
joints, grabens, etc. form plains of weaknesses or pressure
release spots along which future movements, slides, heaves or
failures may occur whenever some energy event triggers off such
action. Such events may be a new earthquake or tremor, heavy
urbanization activities, mining or excavation, excessive dewatering
or heavy withdrawal of groundwater in subsurface aquifers, excessive
pumping out of petroleum and natural gas from subsurface reservoirs,
poor road and drainage constructions, wrong channelization of
surface waters, massive but heavy plants and machinery emplacement
on lands and made complex by vehicular movements, artillery
shelling and bombardment during wars or battles, etc.
The hanging hills, slopes, lowlands and valleys found all over
the erosion prone-areas in Igboland are symptomatically-symbolic
of these plains of weaknesses that can trigger off gullies and
landslides anytime. You find these hills and valleys at Nsukka,
Enugu, Awgu, Umuahia, Ohafia, Arochukwu, Okigwe, Orlu, Afikpo,
Agulu, Nanka, Alor, Abiriba, Osina, Umuchu, Achina, Umunze,
etc. These hills slope away gently along the deep area and steeply
towards the scarp slopes. These topographic expressions enhance
the active generation of runoff, floods, soil and gully erosion
and landslides. It is quite dangerous and most uncaring to cut
through or excavate those hills without proper planning of containing
possible earth failures, movements or landslide! Road builders,
rock excavators and sand miners must watch their acts whenever
they hack away at unstable hills around!
Soil and gully erosion and landslides may be broadly-caused
singly or in combination of two events that may occur through
natural or anthropogenic (man-made) activities. Natural causes
include those events that occur in nature that trigger off the
ecological problems while anthropogenic ones are those anti-environmental
acts that are perpetrated through man’s activities. In
order for these events to occur, there are some basic and militating
environmental conditions that are required. These conditions
negatively abound all over the southeast, thereby, exacerbating
the incidences of the widespread ecological problems that have
become pandemic.
Rainfall is heavy and comes down during the rainy season as
thunderous showers. Average annual rainfall of about 2000mm
is harvested every year. These rains fall from April to September
annually. The rains develop fast moving runoff and huge floods
that cause havoc down the many steep and gentle slopes that
are found all over the areas. The hilly slopes and plains are
overlain by the underlying acidic sandy and lateritic soils
of Eastern Nigeria while mud and clays are found in lowlands
and valleys. The soils, sands, silts and clays are easily erodible
and denuded. The breakdown of soils is facilitated by its acidic
nature that makes faster the decay and removal of the cementing
materials binding soils together such that they are easily washed
away. These reddish, brownish and, sometimes, yellowish lateritic
and silty/sandy soils are eroded and transported by running
water through flood waters into streams, lakes and rivers that
look blood red in colour. Beneath the weak lateritic and acidic
soils are found the unstable and poorly-consolidated geologic
rocks and materials that carry the lands, forests, rural and
urban centres as well as their infrastructure, the valleys,
wetlands or marshes, lakes, springs, streams, rivers, roads,
bridges, etc. These rocks have faults, joints and grabens that
weaken them further. The sandy members of these geologic units
may contain huge groundwater reservoirs in aquifers with attendant
pore water pressures that may be threatening whenever uncompromising
loads are emplaced on overlying structures. The gully erosion-prone
areas of Anambra State have huge groundwater reservoirs that
are severely contributing to the ecological problems.
During the heavy rains of the rainy season, massive groundwater
infiltration occurs into the subsurface geologic units in aquifers.
This high infiltration raises the groundwater levels in aquifers
resulting into high pore water pressures and groundwater discharges
to the surface and at the sides of river or stream valleys.
The groundwater level rises and pushes up pore water pressures
beneath the ground surface resulting in slope stability problems
or failures in form of landslides, soil heaves or earth movements.
Dewatering measures where huge volumes of groundwater are continuously-pumped
out to lower the water level may solve the flow problem. Ancient
or recent landslides in such areas have resulted in the creation
or destruction of existing surface water bodies. Springs, streams
and swamps may be lost or formed; rivers may be blocked or dammed;
lakes may be formed through damming of rivers or excavation
or exposure of a groundwater reservoir; etc. These are believed
to be how Agulu, Atama, Otiba, Uchu, etc. lakes were formed.
These waters may equally be lost through sedimentation, siltation,
drowning, eutrophication or excessive plant growth, etc. during
erosion.
The former great and evergreen rainforest belt in Igboland has
been deforested up to about 80%. Deforestation is now posing
major ecological problems. Soils and laterites are recklessly
opened up all over the areas, easily leached and washed away
as the lands are left threadbare. Rainfall intensity is rightly
direct on the naked lands and soils. Infiltration capacity of
the soils is highly increased. Solar radiation and heat waves
that impact directly on, and disaggregate, the soils are continuous.
The areas are turning into unhealthy savanna grassland with
very sparse vegetation.
The giant iroko and uku trees are gone as a result of massive
and irresponsible lumbering. Remnants of the rainforest can
be found along water-courses and lakes, around shrines and rural
markets. The giant trees, luscious vegetation and bushes were
removed through excessive farming, urban development, building
of markets, industries, churches, schools, roads, NITEL and
NEPA lines, etc. These unplanned socio-economic activities that
have been heightened in recent times, expose the weak acidic
and lateritic soils as well as the unstable geologic sediments
to erosion, gullies and landslides.
5. ANTHROPOGENIC ACTIVITIES IN CAUSATION OF GULLY EROSION
AND LANDSLIDES IN IGBOLAND
Present day anthropogenic activities all over Igboland have
greatly exacerbated the soil and gully erosion incidences and
landslides. Few living and easily observable examples that are
presented below shall be most illustrative. After the Second
World War that lasted from 1939 to 1945, many Ndigbo-British
soldiers who were demobilized after the war, came back with
a lot of money in their pockets. The lots of money from these
soldiers raised the tempo of socio-economic activities that
negatively impacted on the unstable environment of our lands.
There were new industries, markets, roads, farms, etc that sprang
up without proper planning for the protection and preservation
of the fragile environment. Earlier during the War, vast areas
were opened up for agriculture to produce more agricultural
products and foods to support war efforts. The then colonialists
saw all the havoc being wreaked on the then environment and
did nothing while our people went ahead to destroy their lands
and all the economic resources through reckless activities.
But the so-called British masters knew of future implications
of the problems of soil erosion, gullies-devastation and landslides
in the Agulu-Nanka areas of Anambra State and Okigwe area of
Imo State. They tried to do something palliative. They probably
had no Geologist then in the country, and hence in 1935, had
to bring in a Geographer from East Africa to explain to them
our then ecological problems. Later, they tried to do the following:
evacuate the people of Agulu-Nanka areas as refugees to Anaje
(or Sanje?) oil palm plantation in Western Cameroon, ban habitation
and development in the threatened or affected areas and plant
cashew trees as can be still found today at Agulu, Nanka, Oko,
Okigwe, etc. The British showed some good faith and the will
to tackle the ecological problems unlike our leaders of today
who do not care!
The colonialists knew then that the present ecological hara-kiri
would occur in parts of the Southeast (Igboland) and hence,
their efforts to evacuate the inhabitants out of harm’s
way; and the planting of cashew trees then. Of course, Ndigbo
did resist some of these actions of the British and stoutly
refused to be evacuated out of their abode to any other place.
They would have lost their homes and lands; and later turned
into wandering and hapless refugees in the Republic of Cameroon.
They described the British attempt to eject them and transport
them to another country as Nso-ala or Alu, and vehemently refused
to leave! Although many of those people who refused to move
as well as their descendants have lost their lands or have even
died as predicted then by the British officials, there are no
regrets for refusing to be evacuated. They, rather, relocated
close to their former homes and are still within their cultural
milieu.
For me, one may humbly aver that the actions taken by the colonialists
are wrong, namely, they failed to know that the problem was
not just surficial in nature where it can be easily be explained
away as a soil or geographical issue only. The heart of the
problem was more deep-seated and primarily of geologic nature
as well as having elements of pedologic and geographic configurations.
The British agents planted wrong type of trees such as cashew
that cannot hold the soil together and has little or no binding
properties. The leaves and foliage hardly decayed to provide
humic matter to close up soil pores and bind soil grains together
when they were shed on the ground. Above all, it is most incredible
to force an Igbo man to become a refugee and even, be permanently-away
from his native land. The British ought to have known that such
an action was an impossible venture! These are the reasons why
the control programmes of the colonialists failed woefully.
One may also add that most of their colonial officials were
not knowledgeable enough in environmental matters.
One may go further to say frankly that the present government
officials in Nigeria, be they Federal, State or Local, are behaving
even worse than our former British colonialists! The British
really tried to understand and solve the ecological problems
while our leaders are doing little or nothing. Imagine the gory
situations where huge ecological funds are made available to
the State governments and the monies stolen! These funds are
misused and nothing is done about it. Instead, part of the funds
fraudulently disappears into private accounts. Please, carry
out a detailed investigation to find out what happened to all
the ecological funds that were given to the States in the last
four years. Much of the funds disappeared into the private pockets
of corrupt officials!
The Nigeria-Biafra War wreaked a lot of ecological havoc on
our lands. Many people ran back from the north and west of Nigeria
as refugees. They cleared bushes and virgin forests to build
and establish new homes; opened up lands to grow more food;
built new roads, markets and small-scale industries; increased
transportation activities such that many vehicles plied the
roads; and brought to bear so many other socio-economic projects
that were put in place. All these stressed the weak environment.
Extensive movements of war machinery and military exercises-cum-adventures
were ongoing all over the then Biafra (Igboland): bridges were
pulled down; roads were dug up and destroyed with obstacles,
bunkers, tunnels, etc. constructed across and within them; artillery
shelling and mortar bombardments that pounded lands were in
vogue; armoured vehicles of all descriptions were in use; air
bombardments were not left out; and massive movements of people,
refugees and troops of both Federal and Biafran Forces laid
heavy siege of unimaginable stresses on lands. These contributed,
and still do continue to do so, immensely in the present devastation
of our total environment that include air, lands, waters, plants,
animals, etc!
There are no working railway lines or stations in Igboland.
There is no international airport in the Igboland that can serve
for haulage of large commercial loads. What we have are small
nondescript airports that have continued to be an embarrassment
to any serious-minded Igbo man. The Enugu airport is as old
and small as ever even though new international airports have
been built in other parts of Nigeria since after its existence.
Individuals have been trying to build an airport at Oba near
Onitsha but are yet to succeed. Their efforts are instead, being
continuously sabotaged. Individuals again succeeded in building
the Imo airport at Owerri; but humble requests that were made
several times by the various Imo State governments and her people
for the takeover of the Owerri airport by the different Heads-of-State
of Nigeria up to the present day, have been rebuffed to the
chagrin of our people who built the airport from their sweat!
It is only in this part of Nigeria (Igboland) that there is
no international airport for some reasons. There is no seaport
in Igboland for haulage of heavy cargoes. An attempt to build
an inland port at Onitsha has been sabotaged and continues to
be a pipe dream. So in essence, there is no means of transporting
large and bulky commercial cargoes to and from the Southeast
except travelling through land routes that cause massive destruction
of the weakly existing roads. One again, humbly realizes that
the Southeast Zone (Igboland) is an economic power base of Nigeria!
We have large commercial and industrial centres at Onitsha,
Nnewi, Aba, PortHarcourt, etc. There are active ports at Calabar,
such as the Export Processing Zone (EPZ) structure, and Port
Harcourt. The oil, gas and fertilizer companies and their industries
are at Port Harcourt. Goods and services from all these centres
of commerce and industry are hauled to other parts of Nigeria
mainly through the Igbo roads that are almost totally destroyed
through gully erosion and landslides. Telephone systems in Igboland
are hardly efficient. As a result one finds people and their
vehicles always on the roads, the easy way of communicating.
That is why many major roads in Igboland are always busy and
congested. People have no other way to communicate except through
these horribly-bad roads that become easily destroyed by gully
erosion.
Oil and gas deposits abound in Anambra and Enugu States and
may have hydraulic connectivities to those being exploited down
gradient of the Niger Delta. We know that most of the sediments
where the oil and gas were formed and are now found were trucked
down by erosion and denudation through rivers from upland areas
such as the Benue, Anambra, Idemili and Niger Rivers as one
can see casually and naturally happening to this day. We do
know that geographic-cum-geologic information clearly demonstrate
that parts of Igboland (such as Enugu and Anambra States) constitute
the head-area of the Niger Delta while parts of the Southsouth
form the tail-end (e.g. Bayelsa and Rivers States). The oil
prospecting and production activities; the consequent and extensive
vehicular movements; the widespread atmospheric pollution and
water contamination from acid rains; etc. equally endanger southeastern
environments. They contribute to the total breakdown of infrastructures
such as roads, water schemes, houses, monuments, etc. The Nigerian
oil industry contributes directly or indirectly to the wanton
damages wreaked on the environments of Southeast and Southsouth.
6. FLOOD DISASTERS AND SOIL/GULLY EROSION HAZARDS AND
LANDSLIDES IN PARTS OF IGBOLAND
The rainy season starts sometime from the end of the month of
March and ends in October while the dry season begins in late
October and ends in March of the following year. The volume
of annual rainfall is quite immense, averaging about 2000mm
every year. The rainfall intensity is thunderous and tempestuous
during most of the rainy periods. The huge volumes of surface
runoff that eventually turn into great floods are tremendously-aggressive
and indescribably-denuding. The thunderous rainfall come down
in form of showers from the heavens at such a fast rate and
volumes. One becomes most perplexed at such the speed at which
massive floods are generated within very short period of rainfall
and time!
Imagine a situation where within some few minutes of rainfall,
major floods are instantly-generated. The floods begin to move
with an indescribable speed, wreaking havoc, denudation and
severe destruction along their wake. Flood genesis and movement
in Igboland are facilitated and even exacerbated by environmental
factors already stated above. The rains are heavy, intense and
downpour-destructive. The geographic relief and topographic
geometry provide steep slopes that encourage severe runoff and
fast flood flow. The lands are open and are threadbare. There
are hardly any major natural or effective man-made obstructions
to stop the ravaging flood and deluge. The total environment
of Southeastern Nigeria (Igboland) has been set up by the biological
man for floods, soil and gully erosion as well as landslides
to ravage and destroy.
Soil erosion involves the removal of the thin layers of soil
or solum from one location, and later deposited at near or far
distances, by agents of weathering, erosion and denudation that
include gravity, water, wind, man, plants, animals, etc. The
soil layers may range in thickness from a few millimetres for
some soils to metres for some lateritic deposits. Soil erosion
has sub-components that eventually add up in the ecological
devastation processes. It comprises sheath, rill, channel and
bank erosion types. Sheath erosion or outwash is generated by
runoff that spread out over land as a blanket of water, moving
down gradient in a direction. The sheath eventually breaks up
into fingerlike rills as it picks up more energy down the slope.
The rills coalesce into larger geometrical entities called channels
that can be demarcated into small observable dimensions of length,
width and depth. Also at stream, lake and river slopes, bank
erosion is predominant, whereby, the sides and slopes of the
riverbank may break away and are washed down by running water
or floods.
Hence, within any catchments, subcatchments or watershed, sheath,
rill, channel and bank erosion occur singly or in combination
during the rains to denude the ecosystem and truck away loads
of soils and sediments that are later, deposited elsewhere.
In Igboland, flood disasters are common and endemic while the
consequent soil erosion pose serious hazards that are always
of damaging consequences.
Floods are commonplace all over Igboland during the rains. They
carry away humans, plants, animals, property, farm crops and
lands, etc. Floods have dislodged and destroyed infrastructures
such as roads, bridges, water schemes, NEPA and NITEL lines,
etc. Floods pollute and contaminate surface waters and destroy
them by depositing sediments and soils into them, thereby, reducing
their water levels and volumes through silting. Many urban and
rural roads have been turned into flood channels. These roads
had been severely eroded and gullied earlier. In addition, they
were repeatedly graded every dry season to fill up or clear
away potholes to make them motorable. As a result, many roads
have been lowered, became very deep and higher than a man’s
height. Often, the roads are lower than the drains that were
supposed to carry floods away. Hence, floods ignore these drains
where they exist; and make use of the roads as commonly observed
every rainy season in urban centres. Case examples of these
drainage failures abound in urban centres of Awka, Onitsha,
Nnewi, Umunze, Obosi, Owerri, Aba, Umuahia, Enugu, Nsukka, Afikpo,
Abakaliki, and etc. Soil erosion hazards and disasters are commonplace
during the rainy season.
Most farmlands in Igboland are dead because the rich topsoils
have been washed away by erosion. While the uplands have soil
nutrients leached out or washed away, the clayey lowlands are
also being destroyed by erosion. The sands and silts eroded
from the highlands are deposited on these formerly-rich lowlands
or marshlands. The rich top layers are covered with useless
sands and silt, rendering them infertile. Most inhabitants of
rural and suburban communities depend upon subsistence farming
to live and survive. Today over 85% of our farmlands are dead
to productive agriculture. Even desperate attempts to remedy
the situation by applying fertilizers do not help as much of
the applied ones are easily leached out or washed away.
There are hardly in existence any more, healthy or thriving
marshlands or wetlands in Igboland today. Most of them are dead
or dying as a result of the adverse effects of erosion despite
their extreme importance in surface water hydrology and environmental
ecology. These marshes serve as water filters that remove pollutants
and contaminants and later digest them before the flood waters
are discharged into streams, lakes and rivers. It is at these
wetlands that some fishes and reptiles spawn their eggs, etc.
The eggs mature and break. The young ones rise and develop at
these marshes eventually. People are so ignorant of the importance
of wetlands.
The wetlands are wantonly-abused and destroyed at will at Lagos,
Kaduna, Onitsha, Aba, Port Harcourt, Yenogoa, Calabar, etc.
They are cleared, bulldozed and refilled with laterites and
sands for reclamation and occupation. Useless developments such
as buildings, roads and other infrastructure are emplaced at
will on these wetlands. People pretend not to know that they
are actually destroying the natural environment while interfering
with pre-existing natural flood cycles as well as impairing
the habitat of already-designated plants and animals of various
in nature. It is possible that one day in future, many of these
structures that wrongly occupy wetlands may be washed away by
a deluge of flood cycles that may naturally occur. It is well-known
that in hydrogeologic history, such cycles of events were common.
Today, these marshes are covered with useless silts and shifting
sands through activities of erosion or by man-made structures
that deface the natural environment of wetlands!
Many of the springs and streams that serve as water supply sources
to the rural communities for domestic purposes and irrigation
agriculture are gradually destroyed by floods and soil erosion.
They are being filled up with silts and sands; are polluted
and contaminated. There are many dead or dying lakes. Overgrowth
of such lakes by aquatic vegetation due to eutrophication or
excessive plant growth occurs. This is because of overload of
soil nutrients transported into the lake from land. Poor fish
catches is commonplace because of poor living conditions in
the lake that has become anoxic and severely unhealthy for fish
or any aquatic life. Weathered plants, grasses, trees and other
vegetation that have turned brownish in colour. Actual dead
plants or poorly-yielding raffia palms or palm trees are observed.
Today, the expressways, Federal/State/Local government roads
and those ones in the communities are, sometimes, covered with
heaps of sands deposited across them by floods and erosion.
These dangerous obstructions are hardly ever removed until they
cause fatal accidents and loss of innocent lives.
7. SPECIFIC EXAMPLES OF FLOODS, SOIL/GULLY EROSION AND
LANDSLIDES DISASTERS IN IGBOLAND
Soil erosion, through channel and bank erosion, grows and ends
up as gullies that continue to expand, widen and deepen into
greater but more devastating gullies until they eventually mature
into senescence. At old age, a gully may live and die and is
covered up and the land is naturally-reclaimed by vegetation
or humans. In another situation after sometime, the gully may
suddenly wake up and becomes rejuvenated! It continues to grow,
spread and destroy. These gullies may appear singly or jointly
and grow in groups or combination to form an anatomizing network
of gullies with extensive gully fingers, body and soul as well
as tentacles that are well-distributed in a complex manner far
and wide within the ravaged environment. A basin, catchments
or sub-basins may be affected, partially or entirely. Once the
gullies are not quickly-arrested and controlled, but allowed
to expand in this way, they run riot, assume mad dimensions
and become most difficult and costly to control or contain.
At this juncture, they may become complicated by the occurrence
of landslides. Some earlier governments carried out on erosion
control in a laissez-faire manner all over the place.
Gullies and landslides do work together most of the time. They
are most rampant in Anambra, Enugu, Imo and Abia States in excessive
degree. Floods are most destructive at Ebonyi State. Rills,
channel/bank and gully erosion undermine the earth and the overlying
structures, creating avenues for the takeoff of slides. Such
threatened lands already have deeply-penetrating cracks or pressure
release joints through which rainwater; runoff and floodwaters
penetrate deeply into the ground. The overlying superstructures
on lands are, gradually, weakened by increased pore water pressures
caused by large ingress of water, thereby, making the entire
lands and platform unstable. The earlier cracks on the ground
must have taken some geometrical shapes and sizes such as squares,
rectangles, and etc. around or along which failures in form
of gullies and landslides may occur.
The total stress that carries the entire particular landmass
and its overburden comprises the effective stress and pore water
pressure. Effective stress is contributed by components of solid
skeletal materials of rocks, sediments and soils; pore water
pressure is caused by the presence of pore waters in pore spaces
of soils and soil skeleton. After the rains, heavy groundwater
infiltration and percolation occur into the subsurface through
surface cracks and the porous layers of the soil, thereby, filling
the pore spaces with water and raising water levels in the soil
zones and groundwater. The attendant rises in water levels result
in increases in pore water pressure that does overshoot the
effective stress. The pore water pressure has taken the upper
hand over the effective stress. This results in the total stress
being incapable of continuing to carry the earth structure.
This brings about structural failures in form of landslides
and devastating gullies. Landslides and gullies have carried
away homes, houses, factories, lands, farms, roads, bridges,
etc. in various parts of Igboland. At many urban and rural communities
such as Okwudor, Okigwe, Orlu, Mbaise, Osina, etc. in Imo State;
Bende, Nguzu, Ekoli, Ohafia, Uzuakoli, Abiriba, Uturu, etc.
in Abia State; Agulu, Nanka, Oko, Umunze, Achina, Umuchu, Nnewi,
Alor, Oraukwu, Ogidi, Ekwulobia, Nnobi, Uke, Ideani, Ojoto,
Obosi, Awka, Abagana, Enugwu-Ukwu, etc. in Anambra State; Udi,
Ngwo, Umumba-Ndiuno, Oji River, Achi, Ugwuoba and Nsukka in
Enugu State; and Uturu and Afikpo in Ebonyi State, these two
ecological monsters of gullies and landslides are wreaking great
havoc to the environment. People have been killed every year
by these erosion evils. These twin monsters cause the greatest
damages to the socio-economic environment of Southeastern areas.
The magnitude and dimension at which gullies originate and expand
in parts of Igboland and the regularity of occurrence of have
become most calamitous and indescribably painful. Once gullies
are allowed to start, develop, grow, mature, produce younger
ones in form of gully fingers, body and soul, they run riot.
Their expansion and spread become uncontrollable. This is the
stage of multiple and complex gully erosion disasters that we
have now almost reached in many communities. It is now obvious
and fearful that larger, wider and deeper gullies-development
and emergence of more destructive landslides are imminent in
the near future at many communities. Recent studies and findings
by a team of scientists and engineers of National Environmental
Watch and Service (NEWS) and the Department of Geological Sciences,
Nnamdi Azikiwe University, Awka, have established site-locations
in towns where potential landslides are now lying in wait to
strike! Large hectares or blocks of lands can suddenly break
away and slide down the slope with attendant disastrous consequences.
The team of experts has also mapped some of the gullies and
identified the potential landslide areas. Reports that embody
explanations and costings for control programmes are available.
We are also ready to work accordingly for any individual, groups,
communities, governments, etc. in assisting to tackle the ecological
problems.
Gullies that would carry away blocks of lands, houses, property
and people into existing gullies, valleys, lakes or rivers at
Agulu, Nanka, Alor, Oraukwu, Obosi, Umuchu, Umunze, Okwudor,
Uturu, Ohafia, Abiriba, Umuahia, etc. are advancing to. many
communities in gully erosion-prone areas. They will be dissected
into pieces of useless badland as the gullies grow and mature.
Many people will lose their senses and become demented or psychological
wrecks later, collapse and die because of pernicious hopelessness.
The loss of any ancestral lands of domicile to an Igbo man,
can be translated into his eventual abject poverty and deprivation.
That event may lead to his consequent loss of mind, consciousness
and death. All these are now happening at some towns in gully
erosion-prone areas of the Southeast. They are becoming widespread
yearly.
8. LACK OF SINCERITY OF PURPOSE, PSYCHOLOGIAL AND POLITICAL
WILL TO TACKLE ECOLOGICAL PROBLEMS
There is lack of sincerity of purpose and political will to
tackle the ecological problems in Igboland by almost everybody
who should be concerned. Lack of political will and concern
for the people result in abject neglect, political gerrymandering,
fraudulent activities. These are some of the bitingly-painful
handicaps that bedevil and prevent us from effectively-dealing
with the ecological problems and hazards. It is a clear case
of obvious denial of fundamental human rights to existence,
safe and good life, secured ownership of lands and property,
protected and preserved environment. The people are annually
oppressed by multitudinous ecological disasters while the Federal
government of Nigeria and her agents hardly bathe an eyelid.
Our
erosion problems have become so bad that international organizations
ought, now, to see or be made to know about the demented nature
of sufferings Ndigbo every year. Time is, now, ripe for our
people to storm out of this country to tell the world about
our frustrations and desperation as a result of our abandonment
to erosion and tantamount-neglect. The Federal authorities are
now at liberty to forestall such an impending embarrassment
if they can react positively.
The Federal government officials and the Honourable members
of the National Assembly know too well that gully erosion and
landslides are most destructive in Igboland. They also know
that desertification problems bedevil the upper northern areas
while floods batter Lagos and Ogumpa areas. But when actions
are to be carried out in combating these ecological problems
and funds for the control projects are to be provided, decisions
become grossly-biased and negatively-skewed against the ecological
malaise of the Igbo people of Southeast Nigeria . Huge funds
are usually and regularly made available to combat desertification
in the north and floods in Lagos and Ogumpa areas of the west.
In the case of gully erosion, people would use the Federal character
policy in providing funds, pretending to say that gully erosion
problems occur at the same magnitude all over the country; and
yet, every honest person knows this to be a lie!
Anyone who has travelled across Igboland knows the problems
posed by gullies have no match elsewhere in Nigeria. And even
where funds are provided for erosion control in any community
in Igboland, the money is a pittance that hardly scratches the
erosion problems. Except for the actions of the Shagari government
at Agulu-Nanka and Alor-Oraukwu areas in Anambra State and Okwudor
in Imo State, one is yet to see any meaningful gully erosion
control projects worth the trouble in Igboland. The truth must
be told to shame the Devil! Gullies do exist in other parts
of the country, but they are smaller than what obtains in Igboland.
The proper political and moral decision that should be taken
is to consider the ecological problems of Ndigbo on their own
merit or demerit and not to continue to latch them unto others
as presently done. Huge international funds are invested in
battling desert encroachment in the northern areas while such
funds hardly ever reach Igboland to combat ecological hazards.
In a democratic setting, nationalism and self-respect do not
allow nations to disgrace themselves before the comity of nations,
Where their people have cases or problems such as the present
ecological malaise, they are given adequate attention and the
problems-solved. They are not neglected, ignored or regarded
as toothless bulldogs. They are not purposely-neglected and
made helpless and forced into taking desperate measures. They
are not marginalized to such an extent that they are forced
to go outside their own country to seek for help to protect
their fundamental human rights and environment. They are given
a fair hearing to present their problems after which cases are
reasonably-considered without bias or undue political influence
and the problems solved. Ndigbo are now ready to put their ecological
problems out!
It has been found that many people and communities in Igboland
are fed up with their governments over their laissez-faire attitude
to ecological problems, The people are, now, prepared to look
outside this country for those who can solve their ecological
problems. They do not care anymore if such actions might embarrass
anyone or any government. They will ensure that ecological matters
shall become election issues in the coming years. All those
concerned are better advised now to make hay while the sun shines.
The present dog-in-the-manger-attitude by government officials
is shameful. Many of the communities that are grossly-affected
by erosion and gully problems are, now, politically-aware of
their environmental rights and privileges. They are prepared
to pursue these fundamental rights to life and existence with
available means that include going to courts of competent jurisdiction
to seek for redress and secure adequate remedies vis-à-vis
the severe ecological problems that stare us in the face!
9. CONTROL MEASURES AND RECOMMENDED SOLUTIONS TO SOIL
AND GULLY EROSION/LANDSLIDES
In the biblical Genesis of the Holy Book, man has been directed
to conquer and takeover the earth with all its bounteous resources.
The earth is not meant to overcome man vis-à-vis the
ecological disasters as presently obtaining in Igboland. Modern
science and technology ensure that no problems, particularly
man-made ones, are unsolvable. All that are required are the
will, intelligence and financial muscle to tackle such problems.
The problems of erosion, gullies and landslides in the Southeast
are no exception. They can be successfully tackled and solved
by Nigerians if they sincerely decide to do so. Man-made problems
can equally be successfully-dealt with by the perpetrator, man.
The following suggestions and recommendations that can be handled
singly or in groups, depending on availability of funds and
materials, are humbly presented for your consideration and actions.
They can be taken one or two or more at a time as one so desires.
We now do suggest and recommend as follows:
(a) Most soil and gully erosion communities in Anambra, Imo
and Abia States should be declared as Disaster areas and emergency
remedial actions must be taken by the Federal Government and
the State immediately;
(b) A Soil and Gully Erosion Commission (SOGEC) that shall take
care of erosion matters in Nigeria should be established by
a Bill of the National Assembly, later assented to by the President;
(c) A special annual allocation or subvention of consolidated
funds should be made and, possibly, budgeted for, for the next
five years for SOGEC to handle erosion and flood problems; the
first assignment of SOGEC shall be to put aside one day every
year that shall be declared an EROSION DAY for an annual appraisal
of issues and problems of erosion nationwide;
(d) Erosion control programmes should involve a subcatchment
management strategy where gullies are controlled as group-units
instead of the present ad hoc/wrong way of tackling individual
gullies and their problems in a piecemeal manner;
(e) All Federal/State/LGAs/groups/individuals should be held
responsible to enacted laws that shall have inbuilt soil and
gully erosion control mechanisms and management in civil constructions
such as roads and estates, civil works, agricultural activities,
etc.;
(f) The Federal Ministry of Works and Housing must be made to
change their planning, design and construction methods and techniques
in gully erosion prone areas since their present methods are
erosion-causative and highly destructive;
(g) The Federal Ministry of Environment should urgently come
out with a working document that shall culminate in the establishment
of SOGEC that shall spell out policies on combating ecological
problems of floods, soil and gully erosion;
(h) More detailed studies and investigations should be carried
out to produce maps, designs, costings and reports on gully
erosion sites for remedial work and control; Officials of the
Presidency and members of the National Assembly should urgently
carry out guided tours to the gully erosion affected areas in
Igboland so that they can see and appreciate the enormity of
the ecological problems and become properly-guided in taking
decisions on possible funding and assistance;
(j) An international four-days Workshop on Soil and Gully Erosion
and Landslides in Igboland should be organized and solutions
to gully problems proffered from the Workshop;
(k) The Federal government should invite and encourage international
organizations, aid agencies and NGOs to support or provide funds
for tackling ecological problems of Ndigbo;
(l) The groundwater resources in the gully erosion areas of
Agulu-Nanka in huge water-bearing aquifers can be dewatered
with huge pumps sited at strategic places, and the pumped out
water distributed through a reticulation system to communities
for domestic and industrial uses;
m) Federal/State/LGA governments should direct that some erosion-prone
or devastated lands be declared disaster areas, should be vacated
and left as no man’s lands and enforce laws on people
to stop further developments and farming in such areas, and
the owners of such lands compensated and relocated elsewhere;
(n) There is great need for agroforestry and green belt development
in erosion prone areas; Reforestation programmes should be embarked
upon to reclaim the lands after mechanical/civil works must
have been carried out earlier to check the gullies;
(o) Marsh lands, springs, streams, rivers and lakes that have
been destroyed should be reclaimed through desilting and revegetation;
(p) Some people have lost lands and homes while others may lose
more in future; they should be relocated elsewhere by the Federal
government to safe areas and be provided with funds to enable
them buy new lands and build their new homes;
(q) The planned dredging of the River Niger after the necessary
EIA should be properly-carried out; the dredge spoils/materials
from the River Niger may be used to fill up and reclaim deep
gullies;
(r) The uncontrolled felling of trees and clearing of bushes
and forests, excessive bush burning, uncontrolled grazing of
lands by cows and goats, etc. should be stopped;
(s)
International airports should be established at Owerri and Enugu.
The Oba airport should be completed. The River Niger port at
Onitsha should be completed and put into use;
(t) An Environmental Management Institute and Erosion Research
(EMIER) should be established at Agulu-Nanka area of Anambra
State to work out lasting solutions and strategies to combat
the ecological problems on a continuous basis;
(u) There is a great need to change the farming methods in the
erosion-prone areas; The Ministry of Agriculture (Federal/State/LGA)
should provide the necessary directives to the communities concerned;
(v) Massive publicity (Press, radio, TV, etc.) should be embarked
upon within and outside Nigeria in order to show the world-at-large
the erosion problems in order to attract financial assistance;
(w) Erosion and flood control programmes and assignments must
be worked out through involvement of people, individuals, communities
and LGAs of the affected areas through people-participation-in-projects-philosophy
such that people can take active part in gully erosion control
projects;
(x) Control of soil and gully erosion and landslides in Igboland
should be made an election issue for the future political office
seekers and contestants; people should vote for those who can
do something in combating ecological problems;
(y) The World bank, IMF, UNDP, UNEP, UNESCO, FAO, UNICEF, WMO,
Swedish/Danish/Norwegian/Japanese aid officials and agencies
should be invited to assist in
funding of projects on erosion control problems either in cash
or through provision of engineering or agricultural materials;
(z)
There should be massive constructions of catchment basins or
Okwa lakes, sedimentation basins, catchment pits, drainage channels,
etc. at several locations in flood and erosion areas; and
(aa) A Panel of Inquiry should be carried out to establish how
ecological funds for the Southeastern States (Igboland) were
used.
10. PRELIMINARY COSTINGS FOR CONTROL OF SOIL AND GULLY
EROSION AND LANDSLIDES IN IGBOLAND
It has been the most painstaking affair to attempt to put some
costs for confronting the ecological disasters that have ravaged
parts of the Southeast. Sincere efforts on our part and wide
scale consultations culminated in the present estimates of total
costing as presented below. The amount of money stated for each
item is realistic enough to handle such a problem. A possibly-more
detailed investigation of each item to prepare the working drawings
and the BOQ would obviously fine-tune the estimates to make
them more realistic. Where the Federal and State governments
feel that the cost may overburden them, they should involve
international aid agencies, donor organizations and the World
Bank for assistance. One may also recommend that any funding
should be directly executed and supervised by the donor and
the people of the area.
You may, please now, consider the following as a guide: An estimate
of the total initial funds that can be made available by the
Federal government to Igbo States to combat the ecological problems
to make the desired impact is conservatively put at about N100.5
billion (one hundred and point five billion naira only) at the
first instance. The different aspects of what should be done
with the funds have been broken down and stated below. The problems
and control projects can be handled singly or jointly depending
on the amount of money the Federal government can provide as
well as additional assistance from other sources as earlier
recommended.
The above total sum of money of N100.5 billion is now broken
down into sub-heads of control projects with the estimates as
shown below:
The control of different numbers of gullies in Anambra (10),
Imo (6), Abia (8), Enugu (6) and Ebonyi (5) States, totalling
35 major gullies of different sizes at a cost of N13.0 billion
per year;
Dewatering of groundwater in aquifers-schemes through five giant
boreholes to be sunk in parts of Agulu, Nanka, Adazi, Igbo-Ukwu
and Oko areas to lower the subsurface water levels; and the
pumped-out water supplied to the various communities for domestic
and industrial uses is costed at N6.5 billion;
Massive reforestation and green belt development at various
locations in Igboland is to cost N6.0 billion;
Construction of Okwa lakes, sedimentation basins, catchments
pits and drainage channels at the cost of N2.0 billion per State
shall be N10.0 billion for the five States;
The relocation of displaced persons, purchase of lands, and
construction of houses for them, namely, Anambra (8), Imo (5),
Abia (5), Enugu (3) and Ebonyi (2) States in terms of the number
of localities will cost N28 billion;
The establishment of the Environmental Management Institute
and Erosion Research (EMIER) at Agulu-Nanka area, and putting
the educational complex into use will cost N10.0 billion; the
Institute can be affiliated to Nnamdi Azikiwe University, Awka;
More detailed investigations of more gully sites and preparation
of maps, designs and reports at about half a billion naira per
State totals N7.5 billion;
Extensive publicity in press, TV and radio at local, national
and international levels to provide information and create awareness
and remedies to floods, soil and gully erosion and landslide
problems will cost N1.5 billion;
An international four-days Workshop and the consequent production
of a Book on Ecological Problems of Ndigbo and Solutions as
well as Guidelines on Flood and Gully Erosion Control will cost
N500 million;
Construction, reconstruction, deepening/extending of new or
existing drainages along the major roads and highways and filling
up existing gullies or potholes within the rural and urban areas
of the States at N1.5 billion per State will cost N7.5 billion;
Reclamation of damaged or destroyed marshlands, springs, streams,
lakes and some rivers through desilting and revegetation in
the five States will cost N8.0 billion; and
The Ministry of Environment should budget annually funds for
reminiscences on the EROSION DAY and consequent activities that
shall be carried out; all the people of Nigeria and their international
friends, aid agencies, NGOs, etc. would be invited to participate
in the national programme at N2.0 billion.
11. SELF-HELP CONTROL MEASURES AGAINST FLOODS, SOIL/GULLY
EROSION AND LANDSLIDES IN IGBOLAND
It has now become very clear that government officials at Local,
State or Federal levels have woefully-failed to understand or
appreciate the severe ecological problems facing the people.
The Federal authorities do not care while fellow Nigerians go
on suffering, losing their lives and property. When allocating
ecological funds by the Federal authorities, it is based on
equality of States despite the fact that our ecological problems
are highly-out of proportions when compared to other States.
Yet, when it comes to the problems of Lagos Bar Beach, the Ogumpa
floods or desertification, special meanings are attached and
read into them to make a case for special privileges.
The Federal government, then, provides disproportionately-more
funds to the relevant western and northern States that are involved.
Some of these ecological problems have attracted international
funding and support while no attention is paid to gully erosion
in Igboland and beyond. Even the pittance from the ecological
funds provided to the State is not supervised for what use they
are made of. Much of these funds are misappropriated while the
Federal officials hardly-bat an eyelid. Federal roads and infrastructure
are built without consideration of their environmental implications
with respect to gully genesis and landslides. Most Federal roads
are gully-erosion-causative and hardly-survive erosional attacks.
These roads are most poorly-constructed and hardly-survive the
attacks of three rainy and dry seasons as they develop huge
potholes and craters that destroy them. Some of their narrow
and short drains end up opening up new gullies and erosion sites
at their distal ends. The various communities and individuals
have cried to the Federal government to declare parts of the
States as disaster areas and provide some relief or assistance
but no one hearkens to these distress calls. In many towns and
villages, people have been driven out of their homes and away
from their lands to become refugees but the Federal officials
and human right groups hardly-ever-notice. Many international
organizations, agencies and NGOs come to this country to tackle
ecological problems as encouraged by the Federal governments
but you can never see any of these foreigners on our soils.
The
National Assembly members should place our ecological problems
on the front burner of the Nigerian national discourse. These
our Representatives (Senate and the House of Representatives)
should not allow their States to continue to lose lives, property,
lands, infrastructure, waters, forests, etc. every year to floods
and erosion. All of them can hardly-drive home to their villages
because the roads have been cut all over the place. They must
know that it is not well with their people. One believes that
if our National Assembly Representatives in collaboration with
their colleagues from other States can put up enough pressures
on the President and the relevant Ministers, they will hear
the distressed wails of Ndigbo and will come to Macedonia to
help us. The people of these States have been physically and
psychologically-destroyed by the myriad of environmental disasters
ravaging the State.
Our National Assembly Representatives should hearken to our
distress to save their people. A man who throws a stone into
a crowded Nkwor-Umuchu market may be aiming at his mother as
the victim. Likewise, a goat that is lying on the ground is
lying on its hide and skin. Further still, no one should sit
by and watch while a goat delivers her baby in a tether. Even
if you continue to allow a mad-rabid dog to lie and sleep, it
will still wake up! One is aware that gully erosion may not
have reached some of the communities. Everyone should better
worry because those nearby advancing gullies shall surely-reach
most towns and villages eventually unless they are stopped now
and controlled. That slave boy who watched with fun, the burial
of his master with a fellow slave’s head must realize
that a similar fate awaits him in the near future.
Many State governments and their officials have taken the people
for a ride over our gully erosion problems. They have done more
harm than good to perpetuate the ecological disasters. They
hardly showed any interests on the plights of their people over
gully erosion problems. Some of them were so corrupt and blind.
They misappropriated the much-needed ecological funds that were
sent by the Federal government. They planted fake erosion control
signboards at gully erosion sites without carrying out any projects
at all. In some cases, wishy-washy jobs were done to cover the
fraudulent paths they left behind. There are little or no records
kept in order to enable them hide their acts. It is a case of
evil that men do living with them. These past governments and
their officials could not prepare or produce reports, records
or designs for gully erosion control and forward to the Federal
government or international agencies for possible funding.
They were lazy or lousy to do their job of protecting the people.
The number of gully erosion sites in Anambra State, today, is
more than three times the presently-quoted figure of 530! No
one has thought it wise to update the figure that must have
increased over three times! The State and Local Government officials
can do much to combat our ecological malaise if the will, honour
and integrity are in their conscience. Unfortunately, these
positive attributes are in very short supply in their lives.
They were prepared to embezzle all the available money while
environmentally-disastrous havoc reigns supreme! Even where
their communities make genuine efforts at executing self-help
erosion control programmes, these government officials are nonchalant.
They do not contribute any advice or money.
Our people must no longer continue to wait till-thy-kingdom-come
for the Federal, State or Local Government officials to save
them from the scourges of floods, soil and gull erosion and
landslides now endemic and pandemic all over Igboland! Sincerely,
one can see no hope from these governments anymore! We have
waited over the last forty years without any serious attempts
by anyone or any government for justice except for the Shagari-Ekwueme
era. We must, now, take our destiny in our hands right away!
Heaven helps those who help themselves. Town union and community
leaders and their traditional rulers should mobilize their people
immediately towards floods and gully erosion control projects.
The educated people, engineers, scientists, etc. should guide
their people on what to do. People can also reach our experts
at Nnamdi Azikiwe University, Awka, for free assistance over
what to do to gully erosion and landslides so that they can
be provided with expert advice, education and enlightenment.
Youths, school children, women, men, umuadas, ndi-ichies, ndi-Nze-na-Ozos,
age grades, church leaders, market women, traders, teachers,
etc. in every community should come together and become involved
in regular flood and erosion control self-help projects.
The people should be allowed to raise and manage their funds
for the purpose. They should plant up all open spaces, markets,
school fields, church grounds, small channels, etc. with bahama
or vetiva grasses. Gully mouths, mid-sections, ends and channels
should be planted up with freshly-tender stems of bamboo/otoshi
and umune/ogilishi, particularly, now that the rainy season
is receding. When these grow up, they will help to stabilize
the soils and hold the lands stable. The people who live in
urban centres far away from home and who cannot participate
in this community exercise should send money for the people
at home to execute the exercise. Blocked drains should be reopened
and desilted. Water collection sumps, down-gradient of floods,
should be dug to reduce outflows. Ridges must be constructed
around yam mounds to trap water in the farms. Every compound
should have shallow wells dug to collect runoff from rooftops
and grounds and the water allowed infiltrate into groundwater.
Landlords and tenants should keep drains in front of their compounds
open and free of obstructions to water flows. People should
be stopped farming or mining laterite from roadsides. Excavation
of sands from flood or river channels should be restricted or
stopped. These reopen/awaken stabilized gullies. Every community
must ensure that no one or no government grades any road anymore
in Igboland.
Grading of roads deepens and widens gullies because of the geologic
and pedological nature of our soils. When we grade roads in
the dry season by smoothening and levelling the potholes we
improve expansion of existing gullies or start new ones during
rainy season. This is why many rural roads are now very deep,
sometimes, more than a man’s height; why many compounds
are left hanging by roadsides. Instead of grading roads, we
should fill the channels with red earth and harden them. The
town union leaders, traditional rulers and youths must watch
out for those contractors who construct erosion-causing roads
and stop them from deviant acts before they perpetrate their
havoc of erosion-causation. Communities should get the contract
terms from the government or whoever awarded the road contract
to ensure that proper specifications are adhered to. They should
monitor the road constructions and ensure that the contractors
do not construct narrow and short drainages that they hide in
the bush where they initiate and open up new gullies sooner
than later.
These communities should tax their men and women to carry out
these erosion control exercises.They should get the necessary
bylaws and enforce them for their environmental survival and
safety. Almost all towns in Anambra State still have ancient
forests around shrines, markets or open spaces. Presently, there
are severe encroachments into these forests through wood felling
and timber exploitation. Many forests have disappeared and are
disappearing fast. Our communities should survey and mark off
these forests to save and protect them. Wherever these forests
have been removed or interfered with, gullies have set in. There
are also many abandoned river channels and ancient dry valleys.
Communities must avoid developments in these places since some
of them are geologically-unstable and environmentally-sensitive.
Where we recklessly-tamper with their existence, we may encounter
emergence of massive gullies or landslides! People may not know
but our laws, statutes, decrees, edicts and bylaws have sections
and clauses for environmental protection and management. Communities
and individuals are advised to resort to court actions to seek
redress for damages inflicted by scavengers and truant environmental
nuisances or marauders!
Our courts can award costs for and stop reckless damages inflicted
by anyone, governments, organizations or agencies on any part
of the environment be it air, land, soil, water or rock or biosphere.
People can and should go to court to challenge the vicious atrocities
perpetrated by some people, governments or organizations that
cause floods, gully erosion and landslides. Adjacent towns,
communities or cultures can come together to carry out together
the above projects for permanence otherwise if a gully is controlled
in one town and left elsewhere, it may continue in another town,
may spread and fight back! There is a great need for cooperation
and coordination across towns, communities and cultures for
more lasting effectiveness and permanence.
If every community can embark on all the above self-help programmes,
floods, soil and gully erosion and landslides will be given
a fair fight in Igboland and beyond. Many living-gullies shall
be drained of their life-water-bloods, whither away and die.
Few new gullies will have little or no chance to sprout, live
and mature.
Professor Dr. Boniface Egboka, FNAH, (umuigbo@igbo-land.com)
is the Dean, School of Postgraduate Studies and also teaches
Environmental Hydrogeology at Nnamdi Azikiwe University, Awka,
Anambra State, Nigeria.