Synthesis analysis of soil erosion for Three-River Headwater region based on GIS

In this paper, based on the common soil erosion model, the Three-River Headwaters region was select for study object. GIS methods are applied to conduct Semi-quantitative assessment for different types of soil erosion, and some results are concluded. The water erosion occurs in High Mountain and ext...

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Veröffentlicht in:	Hunan agricultural science & technology newsletter : HASTN 2010-10, Vol.11 (5), p.155-158
Hauptverfasser:	Chen Qiong, Qinghai Normal University, Xining (China), School of life and Geographic Science, Wu Wanzhen, Qinghai Normal University, Xining (China), School of life and Geographic Science, Zhou Qiang, Qinghai Normal University, Xining (China), School of life and Geographic Science
Format:	Artikel
Sprache:	chi ; eng
Schlagworte:	EROSION GEOGRAPHICAL INFORMATION SYSTEMS http://www.fao.org/aos/agrovoc#c_2651 http://www.fao.org/aos/agrovoc#c_35131 http://www.fao.org/aos/agrovoc#c_7156 SISTEMAS DE INFORMACION GEOGRAFICA SOIL SOL SUELO SYSTEME D'INFORMATION GEOGRAPHIQUE
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Zusammenfassung:	In this paper, based on the common soil erosion model, the Three-River Headwaters region was select for study object. GIS methods are applied to conduct Semi-quantitative assessment for different types of soil erosion, and some results are concluded. The water erosion occurs in High Mountain and extra-high mountain of Yushu, Nangqian, Banma and Jiuzhi County in the southeast and south of the Three-River Headwaters region. The degree of erosion is prone to topography, precipitation, river and human activity. The freeze-thaw erosion mainly distributes in the northwest of the Three-River Headwaters region. The area of middle and above middle erosion degree accounts for roughly 50%.
ISSN:	1009-4229