Arid
DOI10.1016/j.resconrec.2008.11.007
The impacts of watershed management on land use and land cover dynamics in Eastern Tigray (Ethiopia)
Alemayehu, Fikir1,2; Taha, Nurhussen2; Nyssen, Jan3; Girma, Atkilt2; Zenebe, Amanuel2; Behailu, Mintesinot2; Deckers, Seppe4; Poesen, Jean4
通讯作者Alemayehu, Fikir
来源期刊RESOURCES CONSERVATION AND RECYCLING
ISSN0921-3449
出版年2009
卷号53期号:4页码:192-198
英文摘要

Integrated watershed management (IWSM) was implemented to address issues of poverty and land resource degradation in the 14,500 ha upper Agula watershed, in semi-arid Eastern Tigray (Ethiopia), an area known for poverty and resource degradation caused by natural and man-made calamities. The purpose of this study was to assess the impact of IWSM and determine the land use and cover dynamics that it has induced. The change in land use and cover was assessed by integrating remote sensing and geographic information systems (GIS). Two sets of aerial photographs (taken in 1965 and 1994 at scale of 1:50,000) and Landsat ETM+ image (taken in 2000 with 30 m resolution) were used to produce the land use/land cover map and assess land use change.


The results reveal significant modification and conversion of land use and cover of the watershed over the last four decades (1965-2005). A significant portion of the watershed was continuously under intensively cultivated (tainted) land. The area under irrigation increased from 7 ha to 222.4 ha post-intervention. The area under dense forest increased from 32.4 ha to 98 ha.


The study further shows that IWSM decreased soil erosion. increased soil moisture, reduced sedimentation and run off, set the scene for a number of positive knock-on effects Such as stabilization of gullies and river banks, rehabilitation of degraded lands. IWSM also resulted in increased recharge in the subsurface water.


This study reconfirms the importance of IWSM as a key to improve the land cover of watersheds, as a contribution to poverty alleviation and sustainable livelihood. (C) 2008 Elsevier B.V. All rights reserved.


英文关键词Integrated watershed management Land use and cover change Remote sensing Geographic information system (GIS) Soil and water conservation Catchment management
类型Article
语种英语
国家Ethiopia ; Belgium
收录类别SCI-E
WOS记录号WOS:000264368300003
WOS关键词HIGHLANDS
WOS类目Engineering, Environmental ; Environmental Sciences
WOS研究方向Engineering ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/162449
作者单位1.Melca Mehaber, Addis Ababa, Ethiopia;
2.Mekelle Univ, Dept Land Resource Management & Environm Protect, Mekelle, Ethiopia;
3.Univ Ghent, Dept Geog, B-9000 Ghent, Belgium;
4.Katholieke Univ Leuven, Dept Earth & Environm Sci, B-3001 Louvain, Belgium
推荐引用方式
GB/T 7714
Alemayehu, Fikir,Taha, Nurhussen,Nyssen, Jan,et al. The impacts of watershed management on land use and land cover dynamics in Eastern Tigray (Ethiopia)[J],2009,53(4):192-198.
APA Alemayehu, Fikir.,Taha, Nurhussen.,Nyssen, Jan.,Girma, Atkilt.,Zenebe, Amanuel.,...&Poesen, Jean.(2009).The impacts of watershed management on land use and land cover dynamics in Eastern Tigray (Ethiopia).RESOURCES CONSERVATION AND RECYCLING,53(4),192-198.
MLA Alemayehu, Fikir,et al."The impacts of watershed management on land use and land cover dynamics in Eastern Tigray (Ethiopia)".RESOURCES CONSERVATION AND RECYCLING 53.4(2009):192-198.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Alemayehu, Fikir]的文章
[Taha, Nurhussen]的文章
[Nyssen, Jan]的文章
百度学术
百度学术中相似的文章
[Alemayehu, Fikir]的文章
[Taha, Nurhussen]的文章
[Nyssen, Jan]的文章
必应学术
必应学术中相似的文章
[Alemayehu, Fikir]的文章
[Taha, Nurhussen]的文章
[Nyssen, Jan]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。