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DEM based research on the terrain driving force of soil erosion in the Loess Plateau
Li Fayuan1,2; Tang Guoan2
Author of SourceGong, JY ; Zhang, JX
meeting14th International Conference on Geoinformatics
Conference DateOCT 28-29, 2006
Conference PlaceWuhan
Publication PlaceBELLINGHAM
Contribution Rank1
AbstractDEM data availability and GIS-assisted processing of the data have extended the usage of DEM to a great extent. Taking 5 in grid resolution DEMs of 48 test areas in the Loess Plateau in north Shaanxi as test data, this paper introduces the definition, calculation, extraction and stable threshold area of terrain driving force (T-d) for soil erosion. Then, spatial distribution of T-d is investigated with a method of geostatistics analysis. Results show that spatial distribution of T-d is correlatable with spatial distribution of the soil erosion intensity and T-d can be taken as a regional terrain factor of regional soil erosion in the Loess Plateau. But T-d is not exact enough in evaluation processing of regional soil erosion, an integrated analysis combining the climate, vegetation cover, soil and water conservation management is demanded. Then, some problems existing in the research of regional soil erosion are analyzed and a preliminary model of regional soil erosion contained T-d is proposed. Subsequent research is focused on data collection and integration of regional soil erosion and its applicability in the Loess Plateau.
KeywordDEM terrain driving force regional soil erosion Loess Plateau
Indexed ByEI ; CPCI
Accession numberAccession number:20070710419275
WOS IDWOS:000245104000068
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Corresponding AuthorLi Fayuan
Affiliation1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, No.9, Block 4, Renmingnan Road, Chengdu, Sichuan 610041, China;
2.Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, No. 122, Ninghai road, Nanjing, Jiangsu 210097, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
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GB/T 7714
Li Fayuan,Tang Guoan. DEM based research on the terrain driving force of soil erosion in the Loess Plateau[C]//Gong, JY, Zhang, JX. BELLINGHAM:SPIE-INT SOC OPTICAL ENGINEERING,2006:64201W.
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