干旱区生态环境知识资源中心(Arid): Sediment yield and soil erosion assessment by using empirical models for Shazand watershed, a semi-arid area in center of Iran

Arid

DOI	10.1007/s11069-022-05244-8
	Sediment yield and soil erosion assessment by using empirical models for Shazand watershed, a semi-arid area in center of Iran
	Rajabi, Ali M.; Yavari, A.; Cheshomi, A.
通讯作者	Rajabi, AM (corresponding author)，Univ Tehran, Coll Sci, Sch Geol, Engn Geol Dept, Tehran, Iran.
来源期刊	NATURAL HAZARDS
ISSN	0921-030X
EISSN	1573-0840
出版年	2022-02
英文摘要	Today, the assessment of erosion and sediment yield of catchments is among the fundamental issues in water resources management and environmental problems in developing countries. In this regard, empirical methods have received much more interest than other methods due to the lack of reliable hydrometric and partially precise data, especially for long periods of time. In this paper, the intensity of soil erosion and sediment yield is assessed using Modified Pacific Southwest Inter-Agency Committee (MPSIAC) and Erosion Potential Method (EPM) models in Shazand basin (one of the sub-basins of Saveh dam in the center of Iran) and is compared with the hydrometric method. For this purpose, the study area was simulated with the Geographic Information System (GIS) and Remote Sensing (RS) techniques using the basic 10 m x 10 m cell size maps. The required parameters for MPSIAC and EPM models were defined in ArcGIS 10.2 and Envi 5.1. Then, soil erosion zonation map and sediment yield value were obtained by 2 models and validated by hydrometric outputs. The results of MPSIAC model show that sediment yield in Pol-e Doab, Bazaneh, Tureh and Azna stations are 365,493.26, 47,879.56, 46,291.95 and 40,005.25 tons per year, respectively, while using EPM model they are 288,103.81, 18,963.83, 43,079.2, and 20,583.76 tons per year, respectively. The comparison between MPSIAC model and hydrometric results in Pol-e Doab, Tureh, and Shazand shows agreement levels of 91, 73 and 94%, respectively, and 100% incompatibility in Bazaneh station. In comparison, the difference between EPM model and hydrometric results in Pol-e doab, Bazaneh, Tureh and Shazand stations shows agreement levels of 86, 82, 48 and 79%, respectively. Based on the obtained results, EPM model has higher compatibility in maximum sediment yield prediction, whereas MPSIAC model shows a better ability to create soil erosion zonation mapping with 10 m x 10 m cell size accuracy.
英文关键词	Erosion GIS MPSIAC EPM Shazand watershed Remote sensing Sediment yield
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000758125300001
WOS关键词	GIS ; CATCHMENT ; LOSSES ; RS
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377252
作者单位	[Rajabi, Ali M.; Cheshomi, A.] Univ Tehran, Coll Sci, Sch Geol, Engn Geol Dept, Tehran, Iran; [Yavari, A.] Univ Qom, Dept Civil Engn, Qom, Iran; [Yavari, A.] Isfahan Water & Waste Water Co, Esfahan, Isfahan Provinc, Iran
推荐引用方式 GB/T 7714	Rajabi, Ali M.,Yavari, A.,Cheshomi, A.. Sediment yield and soil erosion assessment by using empirical models for Shazand watershed, a semi-arid area in center of Iran[J],2022.
APA	Rajabi, Ali M.,Yavari, A.,&Cheshomi, A..(2022).Sediment yield and soil erosion assessment by using empirical models for Shazand watershed, a semi-arid area in center of Iran.NATURAL HAZARDS.
MLA	Rajabi, Ali M.,et al."Sediment yield and soil erosion assessment by using empirical models for Shazand watershed, a semi-arid area in center of Iran".NATURAL HAZARDS (2022).