Research was conducted to explore how water use efficiency and productivity, at system level that have water reuse. The local people within such watershed often suffer from various environmental problems associated with watershed mismanagement unknowingly. Geological survey editorial standards or with the north american stratigraphic. The niger river and its tributaries are a key source of water for the estimated 100 million people living in the basin, especially for the.
The available drainage basins in the country are limited to the main eight catchments and their subbasins. Sedimentary succes sions in these basins are of middle mesozoic to recent age. Initially, the overall objective was to encourage waterbased socioeconomic development and poverty alleviation in specific river basins of the country. In a comparative study of ogunpa and ogbere drainage basin in ibadan, ajibade, ifebiyi, iroye 1 and ogenteruconhow to cite this paper. Understanding the longterm interannual to decadal variations of water availability in river basins is paramount for water resources management and climate change adaptation. Pdf a comprehensive collation of river basins in nigeria. These river systems also play a role in ground water recharge through seepage in. Pdf this paper examines the role of river basin development authorities in the economic development of nigeria particularly since. The osun drainage basin in the western lithoral hydrological. Economic potential, with a focus on new economic growth, better use of water, and illustrating and resolving issues in waterstressed regions. Chad and sokoto basins in the north of the country. Ogun river ogunpa river oramiriukwa river oshun river otamiri river oueme river. The mineral resources so far reported in the trough by the geological survey of nigeria agency are discussed below. The white volta river basin is one of the four main subbasins of the volta river system and spans togo, burkina faso and ghana.
Anambra imo river basin development authority east of niger river in areas drained by rivers imo and anambra. Changes in runoff trends have caused severe water shortages and ecological problems in agriculture and human wellbeing in nigeria. The gongola river is an important perennial river in the area and a large population. Pdf integrated water resources management in the cross. The present study, agricultural water use and river basin conservation, is an important contribution to our policy and field actions. River basins are major source of fish food production in nigeria. River basin is defined as an area of land drained by a river and its tributaries. Surface water resources management along hadejia river. Central region, eastern region and the greater accra region. Png references nigeria is a country severely affected by schistosomiasis. Rbdas were established in the seventies to accelerate agricultural development, power generation. The fgn recognizes that higher levels of investments in agriculture, both by the public and private sector, can yield. Drainage basins are an extent of land where water from rain and melting snow or ice drains downhill into a body of water, such as a river, lake, reservoir, estuary, wetland, sea or ocean. Sedimentary basins range in size from as small as hundreds of meters to large parts of ocean basins.
Petroleum potentials of the nigerian benue trough and. Each authority operates in an assigned geomorphological and political boundary and work to improve agriculture and rural development through irrigation, control of river pollution and also to assist farmers in processing food crops. The niger river and benue river basins, the lake chad depression, and lakes dotting the region. For example, anambra imo river basin, consists of 2 different. The federal government of nigeria fgn identified investments in the agriculture sector as effective means to reducing poverty. The lower benue trough like other sedimentary basins in nigeria is found to be endowed with mineral resources. Older sedimentary deposits were not preserved, probably because during the paleozoic early mesozoic, what is now nigeria was a broad regional basement uplift, with no major basin subsi dence for sediment accumulation.
The orangesenqu river basin is one of the larger river basins in southern africa, with a catchment just under one million km2 figure 1. The steelpoort river is an important tributary of the olifants river,contributing useful in. Managing shared river basins in the horn of africa. Introduction the densu river basin has an area of 2,490 km2 and spans 11 local government assemblies in three regions i. Densu introduction the densu river basin has an area of 2,490 km2 and spans 11 local government assemblies in three regions i. Geology and mineral resources of the lower benue trough. The population within the basin from cameroon, chad, central african republic, niger and nigeria, is estimated at over 20 million people. The essential element of the concept is tectonic creation of relief, to. Development of river basin organizations in nigeria. Testing water demand management scenarios in a water. The available drainage basins in the country are limited to the main eight catchments and their sub basins. The associated floodplains of the lake chad cover almost 100 000 km2 where water demand is increasing while drought and desertification are attenuating water flow in the three subbasins that constitutes the. Congo 3,699,100 4,667 congo democratic rep central africa central african angola, congo rep.
African river basins summary of river basins organisation a. List of rivers of nigeria simple english wikipedia, the. A comprehensive collation of river basins in nigeria. The basin is bounded to the east by the oti river basin, to the west by the black volta river basin and to the south by the mainlower volta subbasins. The role of river basins and rural development authorities in the. These were followed, in august, 1976, by the niger delta basin development authorities, bringing the total number of river basin development authorities in nigeria to eleven see table 2. Subject to section 6 of the interpretation act, the river basins development authori ties act 1979 is hereby repealed and the assets and liabilities of any authority established under the said act are hereby transferred respectively to the authority exercising func tions. Many river basins in tanzania are experiencing competition over scarce water resources such that runoff and drainage, if any, from one user located. Integrated water resources management in the cross river basin, nigeria article pdf available in international journal of water resources development 234. There are over eighty major rivers in nigeria and the biggest among them are the river niger and benue. Zambia, tanzania, cameroon, burundi, rwanda, gabon, malawi 2. There are over eighty major rivers in nigeria and the.
The drainage basin covers a surface area of just over 2. It forms a confluence with it at lokoja in nigeria. Geology and mineral resources of the lower benue trough, nigeria. River basin development authorities in nigeria are government agencies involved in the management of water resources for agriculture and other uses. The most important are the niger river basin shared between 11 countries taking into account the nonactive part of the basin, the senegal river basin 4 countries, the volta river basin 6 countries, the lake chad basin 8 countries, and the comoe river basin 4 countries. The niger delta basin is one of the largest subaerial basins in africa. Sedimentary basins range in size from as small as hundreds of meters to large parts of ocean. This map shows the locations of major river basins in africa. Nigeria, drainage system and watershed studies have not received much attention as expected. Niger delta province, nigeria, cameroon, and equatorial guinea, africa by michele l. Png references nigeria is a country severely affected.
The gongola river is an important perennial river in the area and a large population depends on it as a yearround source of water figure 1. Hydrokinetic turbines for power generation in nigerian. It provides an assessment of the crops that use most water in nine large river basins that are globally important for biodiversity conservation. River basins in nigeria serve as a source of portable water to many rural areas of the country.
Only after the benue river, joins the river in nigeria does it become a large river once more. Nigeria also straddles two of africas great river basins, the niger and the lake chad and. Francis obiwe, deputy director, river basin operations in the ministry, told news agency of nigeria in abuja on tuesday that the processes were part of the blueprint and action plan developed to. Best practices on flood prevention, protection and mitigation 3 flood forecasting and warning is a prerequisite for successful mitigation of flood damage. The associated floodplains of the lake chad cover almost 100 000 km2 where water demand is increasing while drought and desertification are attenuating water flow in the three sub basins that constitutes the. River benue also contributes the highest flood flow to river niger in a short duration with a minimum flow rate of about 600 m 2 s olomoda 2012 with a flow rate of more than cubic meters of water per second there is an upstream head of 0. Petroleum potentials of the nigerian benue trough and anambra. Climate change, water and conflict in the niger river basin. Subject to section 6 of the interpretation act, the river basins development authori ties act 1979 is hereby repealed and the assets and liabilities of any authority established under the said act are hereby transferred respectively to the authority exercising func tions under this act in the area of operation of that authority. The niger traverses four countries, two of which niger and nigeria are named after it. Apr 02, 20 when prodded on the issue of flood control, which the river basins development authorities, rbdas, act chapter r9 laws of the federation of nigeria 2004, required rbdas to control floods in their. Therefore the responsible authorities should provide timely and reliable flood warning, flood.
The drainage basin includes both the streams and rivers that convey the water as well as the land surfaces from which water drains into those channels, and is separated from adjacent basins by a drainage. For official and management purpose, there are only but 6 river basins in nig eria, whereas the actual river basins are more than 6. Nigeria is underlain by seven major sedimenta ry basins, viz. Older sedimentary deposits were not preserved, probably because during the paleozoic early mesozoic, what is now nigeria was a broad regional basement uplift, with no major basin subsi. On the basis of this, river basin development authorities.
This basin is very complex, and it carries high economic value as it contains a very. Cross river basin development authority crbda played in the last three. Its effectiveness depends on the level of preparedness and correct response. The study also recommends a series of measures for the four. The white volta river contributes on an annual basis in average some 20% of the inflow to the volta lake, and hence, is an important element of the hydropower generation at akosombo dam and kpong power stations in the. Introduction the problems posed by the morphometric characteristics of some urban river basins in nigeria are widely recognized. New calabar river ngadda river niger river nun river. Establishing river basin development authorities as a. Ka river kaduna river katsina ala river kwa ibo river.
Pdf river basin is defined as an area of land drained by a river and its tributaries. Relationship between drainage basin area and stream length. In 1973 the nigerian government established two river basin development authorities rbdas in the. Official pdf, 166 pages world bank documents world bank group. This list is arranged by drainage basin, with respective tributaries indented under each larger streams name. Basin name area of basin river length countrycountries region 1. Hydrokinetic turbines for power generation in nigerian river. The training of staff for the running and maintenance of rural development schemes and for general extension work at the village level source. Assessment of the impact of climate change on the freshwater. Seventysix percent of the basin area is located within mali, niger and nigeria. Niger river basin development authority areas drained by the niger river starting in the north from the rivers confluence with malendo river and down to niger rivers confluence with ubo river. Investigations into the morphometric characteristics of.
It has a subaerial area of about 75,000 km 2, a total area of 300,000 km 2, and a sediment fill of 500,000 km 3. With a length of 4,200 km, the niger river is the third longest river in africa after the nile and the congo river. A drainage basin code assigned by the department of water affairs south africa see 1 for details b the limpopo river basin is not wholly located within south africa, it straddles four countries, botswana, mozambique, south africa and zimbabwe. Geological survey of nigeria agency has played an active role in the exploration for mineral deposits in nigeria. Ng is an academic website built in nigeria that is registered with the corporate affairs commission cac. River basin development authorities in nigeria international. The sahel savannah part of nigeria is a moderately populated area. Our primary objective is to assist and guide final year students with well researched and quality project topics, project works, research guides, and project materials, at a very reduced and affordable price. Because of its geographic location, it has problems with continuous water supply and also has flooding problems. International journal of science and technology stech bahir dar. The river rises in the waterrich highlands of lesotho, as the senqu river, which is augmented by the flows from, inter alia, the malibamatso, mashai and. Column chances are that as you are reading this discourse, the new board of directors of the 12 nigerian river basins development authorities are being inaugurated by agriculture and water. Ten countries form part of the river basin, and flow is somewhat controlled by dams which provide water for irrigation and hydropower. The zambezi basin is the fourth largest in africa after the congo, nile and niger river basins mukosa and mwiinga 2008.
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