Title :
Effects of Land Use Pattern Change on Soil Loss at Catchment Scale: A Case Study in Loess Plateau of China Based on GIS and SEDEM
Author :
Zhao Wenwu ; Zhang Yinhui
Author_Institution :
State Key Lab. of Earth Surface Processes & Resource Ecology, Beijing Normal Univ., Beijing, China
Abstract :
Exploring the effects of land use pattern changes on soil loss is a frontier field in contemporary research in physical geography. Based on GIS and SEDEM, this paper took a catchment in Loess Platau of China as a case study, discussed the effects of land use pattern on soil loss. The results indicate only 0.08% sparse grassland changed into grassland in Majiagou watershed from 1995 to 2000, and the total river export has changed relatively. Not only the land use types but also the spatial distribution of land use type has important effects on soil erosion. The SEDEM is very sensitive to the tiny change of land use and can predict the effects of land use pattern change on soil loss well. In the further study, SEDEM can be tested for different area.
Keywords :
erosion; geographic information systems; land use planning; soil; GIS; Loess Plateau; Majiagou watershed; SEDEM; catchment scale; land use pattern; physical geography; soil erosion; soil loss; sparse grassland; Equations; Geographic Information Systems; Geography; Geoscience; Laboratories; Lakes; Pattern analysis; Rivers; Sediments; Soil;
Conference_Titel :
Information Science and Engineering (ICISE), 2009 1st International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4909-5
DOI :
10.1109/ICISE.2009.534
