Remote Sensing Assessment on Soil Erosion Risk under the Special Geographical Conditions in Karst Area

Author

Yan, Lihui ; Zhou, Zhongfa

Author_Institution

Inst. of South China Karst, Guizhou Normal Univ., Guiyang, China

fYear

2012

fDate

1-3 June 2012

Firstpage

1

Lastpage

4

Abstract

Based on the karst ecological system vulnerability characteristics , a case in Qiannan of Guizhou Province, BuYiZu and Miao Minority Autonomous Prefecture, we referenced RUSLE model ,and introduced rock as one of the factors that influence, analyzed soil erosion risk of qiannan autonomous prefecture under the support of RS and GIS. The result indicates: The area of not dangerous is 7875.41 km2, accounting for 30.07% of the total area. In the karst area of special geographical conditions, the sole erosion risk is higher, and karst ecological system is vulnerable. In the future, water and soil conservation experts should focus on high soil erosion risk areas in order to create effectivepreventive measures.

Keywords

ecology; erosion; geographic information systems; geomorphology; geophysical techniques; remote sensing; risk analysis; rocks; soil; water conservation; BuYiZu minority autonomous prefecture; China; GIS; Guizhou Province; Miao minority autonomous prefecture; Qiannan; RUSLE model; geographical conditions; karst area; karst ecological system; remote sensing assessment; rock; soil conservation; soil erosion risk analysis; vulnerability characteristics; water conservation; Biological system modeling; Indexes; Remote sensing; Rocks; Soil; Vegetation mapping; Water conservation;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2012 2nd International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4673-0872-4

Type

conf

DOI

10.1109/RSETE.2012.6260679

Filename

6260679