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Soil Conservation Assessment in the Upper Yangtze River Basin Based on InVEST Model
Language英语
REN Jing1,2,3; WANG Yukuan1,2; FU Bin1,2; XU Pei1,2
2011-05-21
Source Publication2011 International Symposium on Water Resource and Environmental Protection(ISWREP 2011) ; Proceedings of 2011 International Symposium on Water Resource and Environmental Protection(ISWREP 2011) VOL.03
Pages1833-1836
meeting2011 International Symposium on Water Resource and Environmental Protection(ISWREP 2011)
Conference Date2011-05-20
Conference Place西安
Country中国
Contribution Rank1
Abstract

Studying and revealing the spatial distribution of soil loss will play an important role in water and soil conservation planning. In the study, the Geographic Information System(GIS)technology and the Intergrated Valuation of Ecosystem Services and Tradeoffs Tool(InVEST) model were applied to estimate the amount of soil loss and assess the soil conservation capacity by the main ecological system in the Upper Yangtze River Basin(UYRB). The results show:(1) the annual potential soil erosion is 92.92*10 8t years-1. The area of average annual soil loss bellow 500 km-2 year-1 occupies 35.08% and above 5000km-2 year-1 occupies 36.8%. (2) The annual actual soil erosion is 12.30*10 8 t year-1. Slight and moderate soil loss is in majority, about 68.15% of the watershed area is found out to be under moderate degree. (3) The annual soil conservation is 80.61*10 8 t year-1, and the contributing percent of main individual ecosystem was as follows: the forest occupies 46.11%, grassland 24.21%. Forest ecosystem does best in soil conservation.

KeywordThe Upper Yangtze River Basin Usle Gis Soil Erosion Soil Conservation
Indexed ByEI
Accession numberAccession number:20113014187506
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25616
Collection山区发展研究中心
Corresponding AuthorWANG Yukuan
Affiliation1.Key laboratory of Mountain Hazards and Earth Surface Process, CAS, Chengdu;
2.Institute of Mountain Hazards and Environment, CAS;
3.Graduate University of CAS
Recommended Citation
GB/T 7714
REN Jing,WANG Yukuan,FU Bin,et al. Soil Conservation Assessment in the Upper Yangtze River Basin Based on InVEST Model[C],2011:1833-1836.
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