干旱区生态环境知识资源中心(Arid): Sediment yield assessment by EPM and PSIAC models using GIS data in semi-arid region

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	Sediment yield assessment by EPM and PSIAC models using GIS data in semi-arid region
	Ali Bagherzadeh; Mohammad Reza Mansouri Daneshvar
来源期刊	Frontiers of Earth Science
ISSN	2095-0195
出版年	2011
卷号	5 期号:2 页码:207-216
英文摘要	Among land degradation processes,soil erosion is the most serious threat to soil and water conservation in semi-arid regions.At the present study,the sedimentation hazard and the erosion zonation were investigated at Kardeh watershed,north-east of Iran by Erosion Potential Method (EPM)and Pacific Sonth-west Inter Agency Committee (PSIAC)models,in combination with the geographical information system (GIS)data,satellite data and field observations.According to our investigation the study area can be categorized into heavy,moderate and slight erosion zones with the total sediment yield of 147859 and 148078 m3/a estimated by EPM and PSIAC models,respectively.The sub-basins located at the middle and south parts of the watershed are highly eroded due to the geology formation and soil erodibility conditions,while the sub-basins at the north parts are moderately eroded because of the intensive land cover.The amounts of the sediment yield in most areas are found to be consistent between the EPM and PSIAC models (R2 = 0.95).Our data suggest the applicability of both empirical models in evaluating the sediment yield in arid and semi-arid watersheds.
英文关键词	erosion Erosion Potential Method (EPM)model Pacific Sonth-west Inter Agency Committee(PSIAC)model geographical information system (GIS) sediment yield
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:4274924
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335098
作者单位	Ali Bagherzadeh, Department of Agriculture,Islamic Azad University-Mashhad Branch,Iran, Mashhad, 91735-413, Iran.; Mohammad Reza Mansouri Daneshvar, Department of Geography,Islamic Azad University-Mashhad Branch,Iran, Mashhad, 91735-413, Iran.
推荐引用方式 GB/T 7714	Ali Bagherzadeh,Mohammad Reza Mansouri Daneshvar. Sediment yield assessment by EPM and PSIAC models using GIS data in semi-arid region[J],2011,5(2):207-216.
APA	Ali Bagherzadeh,&Mohammad Reza Mansouri Daneshvar.(2011).Sediment yield assessment by EPM and PSIAC models using GIS data in semi-arid region.Frontiers of Earth Science,5(2),207-216.
MLA	Ali Bagherzadeh,et al."Sediment yield assessment by EPM and PSIAC models using GIS data in semi-arid region".Frontiers of Earth Science 5.2(2011):207-216.