Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin

This paper applies the principles of water-use accounts, developed in the first of the series, to the Niger River basin in West Africa. The Niger Basin covers 10 countries, and rises in the highlands of southern Guinea near the border with Sierra Leone just 240 km inland from the Atlantic Ocean,...

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Autores principales: Mainuddin, M., Eastham, Judy, Kirby, M.
Formato: Artículo preliminar
Lenguaje:Inglés
Publicado: 2010
Materias:
Acceso en línea:https://hdl.handle.net/10568/4697
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author Mainuddin, M.
Eastham, Judy
Kirby, M.
author_browse Eastham, Judy
Kirby, M.
Mainuddin, M.
author_facet Mainuddin, M.
Eastham, Judy
Kirby, M.
author_sort Mainuddin, M.
collection Repository of Agricultural Research Outputs (CGSpace)
description This paper applies the principles of water-use accounts, developed in the first of the series, to the Niger River basin in West Africa. The Niger Basin covers 10 countries, and rises in the highlands of southern Guinea near the border with Sierra Leone just 240 km inland from the Atlantic Ocean, but there are substantial downstream tributaries from Cameroon and Nigeria. A unique feature is the inland delta which forms where its gradient suddenly decreases. Net runoff is about 12% of total precipitation. Grassland is the most extensive vegetation, covering 50% of the Basin, consuming about 39% of the precipitation. Rainfed agriculture covers 26% of the basin and use about 27% of the precipitation. Irrigated agriculture covers less than 1% of the Basin and uses also less than 1% of the water. Climate change, using an assumed change in rainfall distribution, shows that climate change may have a large impact on water availability in the lower Basin, and hence on the River’s wetlands.
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spelling CGSpace46972025-11-12T07:32:36Z Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin Mainuddin, M. Eastham, Judy Kirby, M. water use, water allocation, irrigation, modeling, rainfed systems, rainwater management This paper applies the principles of water-use accounts, developed in the first of the series, to the Niger River basin in West Africa. The Niger Basin covers 10 countries, and rises in the highlands of southern Guinea near the border with Sierra Leone just 240 km inland from the Atlantic Ocean, but there are substantial downstream tributaries from Cameroon and Nigeria. A unique feature is the inland delta which forms where its gradient suddenly decreases. Net runoff is about 12% of total precipitation. Grassland is the most extensive vegetation, covering 50% of the Basin, consuming about 39% of the precipitation. Rainfed agriculture covers 26% of the basin and use about 27% of the precipitation. Irrigated agriculture covers less than 1% of the Basin and uses also less than 1% of the water. Climate change, using an assumed change in rainfall distribution, shows that climate change may have a large impact on water availability in the lower Basin, and hence on the River’s wetlands. 2010 2011-07-20T17:49:24Z 2011-07-20T17:49:24Z Working Paper https://hdl.handle.net/10568/4697 en Open Access application/pdf Mainuddin, M., Eastham, J., and Kirby, M. 2010. Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin. CPWF Working Paper: Basin Focal Project series, BFP09. Colombo, Sri Lanka: The CGIAR Challenge Program on Water and Food. 25pp
spellingShingle water use, water allocation, irrigation, modeling, rainfed systems, rainwater management
Mainuddin, M.
Eastham, Judy
Kirby, M.
Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin
title Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin
title_full Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin
title_fullStr Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin
title_full_unstemmed Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin
title_short Water-use accounts in CPWF basins: Simple water-use accounting of the Niger Basin
title_sort water use accounts in cpwf basins simple water use accounting of the niger basin
topic water use, water allocation, irrigation, modeling, rainfed systems, rainwater management
url https://hdl.handle.net/10568/4697
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