Hydropower-Induced Land Use Change in Fincha'a Watershed, Western Ethiopia: Analysis and Impacts

The present article analyzes the land use dynamics caused by hydropower dam construction in 1973 in the Fincha'a watershed (1318 km²), a tributary of the Blue Nile. Aerial photos (1957 and 1980) and an ASTER satellite image of 2001 were used to make 3 land use maps of the watershed using a geog...

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Bibliographische Detailangaben
Veröffentlicht in:	Mountain Research and Development. - International Mountain Society. - 28(2008), 1, Seite 72-80
1. Verfasser:	Tefera, Bezuayehu (VerfasserIn)
Weitere Verfasser:	Sterk, Geert
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2008
Zugriff auf das übergeordnete Werk:	Mountain Research and Development
Schlagworte:	Land use change Remote sensing Water reservoir GIS Ethiopia Social sciences Physical sciences Biological sciences Applied sciences Environmental studies


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100	1		\|a Tefera, Bezuayehu \|e verfasserin \|4 aut
245	1	0	\|a Hydropower-Induced Land Use Change in Fincha'a Watershed, Western Ethiopia: Analysis and Impacts
264		1	\|c 2008
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520			\|a The present article analyzes the land use dynamics caused by hydropower dam construction in 1973 in the Fincha'a watershed (1318 km²), a tributary of the Blue Nile. Aerial photos (1957 and 1980) and an ASTER satellite image of 2001 were used to make 3 land use maps of the watershed using a geographic information system (GIS). The 239-km² water reservoir inundated 100 km² of grazing land, 120 km² of swamp, 18 km² of cropland, and 1.2 km² of forestland. In 2001, cropland covered 77% of the land potentially available for community use, indicating that there is hardly any free land available for expansion to accommodate new farmers. Relocated communities operate on relatively small parcels of land situated either on steep slopes or in flood-prone areas. Consequently, they exhaustively utilize the trees available on their holdings, and convert grassland and bushland to cropland, without applying sufficient soil conservation measures. Farmers resettled at or near bodies of water and swamps, however, are affected by seasonal fluctuations of water levels that very often inundate croplands, grazing land, and homes. The demand for cropland and grazing land is increasing as reservoir and swamp areas expand and new families are created. Soil erosion in steep areas can no longer be reduced in the traditional farming system. These enforced land use changes, combined with a lack of appropriate land management practices, may increase erosion and reservoir sedimentation. This could affect food security and electric power production in the near future.
540			\|a Copyright 2007 International Mountain Society and United Nations University
650		4	\|a Land use change
650		4	\|a Remote sensing
650		4	\|a Water reservoir
650		4	\|a GIS
650		4	\|a Ethiopia
650		4	\|a Social sciences \|x Human geography \|x Land use
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geomorphology \|x Geologic provinces \|x Structural basins \|x Watersheds
650		4	\|a Biological sciences \|x Agriculture \|x Agricultural sciences \|x Agricultural geography \|x Agricultural land \|x Farmlands \|x Pastures
650		4	\|a Biological sciences \|x Agriculture \|x Agricultural sciences \|x Agricultural geography \|x Agricultural land \|x Farmlands
650		4	\|a Applied sciences \|x Engineering \|x Civil engineering \|x Hydraulic structures \|x Dams
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Land \|x Rangelands \|x Wetlands \|x Swamps
650		4	\|a Environmental studies \|x Atmospheric sciences \|x Meteorology \|x Hydrometeorology \|x Precipitation \|x Rain
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geomorphology \|x Bodies of water
650		4	\|a Biological sciences \|x Biology \|x Botany \|x Plant ecology \|x Forest ecology \|x Forest cover
650		4	\|a Biological sciences \|x Ecology \|x Population ecology \|x Synecology \|x Biocenosis \|x Plant communities \|x Forests
650		4	\|a Social sciences \|x Human geography \|x Land use
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geomorphology \|x Geologic provinces \|x Structural basins \|x Watersheds
650		4	\|a Biological sciences \|x Agriculture \|x Agricultural sciences \|x Agricultural geography \|x Agricultural land \|x Farmlands \|x Pastures
650		4	\|a Biological sciences \|x Agriculture \|x Agricultural sciences \|x Agricultural geography \|x Agricultural land \|x Farmlands
650		4	\|a Applied sciences \|x Engineering \|x Civil engineering \|x Hydraulic structures \|x Dams
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Land \|x Rangelands \|x Wetlands \|x Swamps
650		4	\|a Environmental studies \|x Atmospheric sciences \|x Meteorology \|x Hydrometeorology \|x Precipitation \|x Rain
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geomorphology \|x Bodies of water
650		4	\|a Biological sciences \|x Biology \|x Botany \|x Plant ecology \|x Forest ecology \|x Forest cover
650		4	\|a Biological sciences \|x Ecology \|x Population ecology \|x Synecology \|x Biocenosis \|x Plant communities \|x Forests \|x Research
655		4	\|a research-article
700	1		\|a Sterk, Geert \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Mountain Research and Development \|d International Mountain Society \|g 28(2008), 1, Seite 72-80 \|w (DE-627)477530710 \|w (DE-600)2173778-2 \|x 19947151 \|7 nnns
773	1	8	\|g volume:28 \|g year:2008 \|g number:1 \|g pages:72-80
856	4	0	\|u https://www.jstor.org/stable/25164184 \|3 Volltext
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