干旱区生态环境知识资源中心(Arid): Modelling and mapping of erosion potentiality watersheds using AHP and GIS technique: a case study of Alamata Watershed, South Tigray, Ethiopia

Arid

DOI	10.1007/s40808-018-00568-6
	Modelling and mapping of erosion potentiality watersheds using AHP and GIS technique: a case study of Alamata Watershed, South Tigray, Ethiopia
	Halefom, Afera; Teshome, Asirat
通讯作者	Halefom, A ; Teshome, A
来源期刊	MODELING EARTH SYSTEMS AND ENVIRONMENT
ISSN	2363-6203
EISSN	2363-6211
出版年	2019
卷号	5 期号:3 页码:819-831
英文摘要	Next to population growth soil erosion are the second most environmental challenges which causing water worsening, land deprivation and desertification. This problem on the environment includes loss of soil fertility, reduction of the depth of water body (lakes, ponds, reservoirs etc), high water turbidity, flood hazard problems etc. This study focus on mapping of soil erosion-prone areas in Alamata watershed (area 534.380km(2)). This study leads where the most effective soil conservation strategies should focus in the area. Based on GIS with the integration of the analysis of analytical hierarchy process (AHP), curvature, stream power index, topographic wetness index, slope, elevation, soil, and land use were used as factors to have a fruitful decision to fulfill to the stated objective. MCEA and AHP are used to quantify hotspot area for erosion which created through pairwise comparison. Based on the analysis of MCE model and AHP tells that out of total watershed area, 0.01km(2) (0.003%), 29.42km(2) (5.506%), 162.80km(2) (30.466%), 341.52km(2) (63.910%) and 0.61km(2) (0.114%) areas are very high, high, medium, low and very low prone to soil erosion respectively. This gives as insight to a watershed decision maker and planners to minimize soil erosion problems.
英文关键词	Causative factors Alamata watershed MCE GIS Raster calculator Pairwise comparison Susceptibility mapping
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000476822000007
WOS关键词	DECISION ; DELINEATION ; MANAGEMENT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333704
作者单位	[Halefom, Afera; Teshome, Asirat] Debre Tabor Univ, Dept Hydraul & Water Resources Engn, Debre Tabor, Ethiopia
推荐引用方式 GB/T 7714	Halefom, Afera,Teshome, Asirat. Modelling and mapping of erosion potentiality watersheds using AHP and GIS technique: a case study of Alamata Watershed, South Tigray, Ethiopia[J],2019,5(3):819-831.
APA	Halefom, Afera,&Teshome, Asirat.(2019).Modelling and mapping of erosion potentiality watersheds using AHP and GIS technique: a case study of Alamata Watershed, South Tigray, Ethiopia.MODELING EARTH SYSTEMS AND ENVIRONMENT,5(3),819-831.
MLA	Halefom, Afera,et al."Modelling and mapping of erosion potentiality watersheds using AHP and GIS technique: a case study of Alamata Watershed, South Tigray, Ethiopia".MODELING EARTH SYSTEMS AND ENVIRONMENT 5.3(2019):819-831.