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[1]GUO Li-xia,SHA Zhan-jiang,TAO Bing-de,et al.Assessment on the Degrees of Soil Erosion Potential Risk in Tala Shoal of Gong-he Basin[J].Research of Soil and Water Conservation,2013,20(02):15-18.

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Assessment on the Degrees of Soil Erosion Potential Risk in Tala Shoal of Gong-he Basin

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 02 Page number: 15-18 Column: Public date: 2013-04-28

Title:: Assessment on the Degrees of Soil Erosion Potential Risk in Tala Shoal of Gong-he Basin

Author(s):: GUO Li-xia^1,2, SHA Zhan-jiang^1,2,3, TAO Bing-de^1,2, GUO Li-hong⁴, ZHANG Juan⁵; 1. College of Life and Geography Science, Qinghai Normal University, Xi’ning 810008, China;
2. Key Laboratory of Environment and Resources in Tibetan Plateau, Ministry of Education, Xi’ning 810008, China;
3. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xi’ning 810008, China;
4. The Basic Geographic Information Center of Jiangxi Province, Nanchang 330000, China

Keywords:: soil erosion potential risk; gradation; ¹³⁷Cs; GIS; Tala Shoal of Gong-he Basin

CLC:: S157.1

DOI:: -

Abstract:: Tracer technique of geochemical radioisotopes ¹³⁷Cs was used to estimate the rate of soil erosion in the northeastern Tibetan Plateau, Tala shoal grassland of Gonghe Basin, field investigation and soil survey were adopted to establish the soil bulk density and soil thickness map. By average annual rate of soil erosion，soil bulk density and soil thickness, the years of soil loss by erosion was mapped, which was based on ArcGIS 9.3. According to the characteristics of soil erosion and standard issued by ministry of water resources, degrees of potential risk of soil erosion have been classified in Tala shoal. The results showed that mild type of soil erosion dominated the main area in this region, the area was 1 692.98 km², accounting for 61.64% of the total area. For SEPRI, it was 2.42, belonging to a light risk zone.

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