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[1]ZHU Yuan-da,ZHANG Guang-yuan,CAI Qiang-guo,et al.Soil Carbon and Nutrient Change and Model Under Soil Erosion[J].Research of Soil and Water Conservation,2001,8(04):126-132.

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Soil Carbon and Nutrient Change and Model Under Soil Erosion

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 8 Number of periods: 2001年04期 Page number: 126-132 Column: Public date: 1900-01-01

Title:: Soil Carbon and Nutrient Change and Model Under Soil Erosion

Author(s):: ZHU Yuan-da¹, ZHANG Guang-yuan², CAI Qiang-guo¹, DING Shu-wen²; 1. Institute of Geographic Sciences and Natural Resources Research , Chinese Academy of Sciences, Beijing 100101, China;
2. Department of Resources and Environment, Huazhong Agriculture University, Wuhan 430070, China

Keywords:: soil erosion; soil carbon; soil nutrient; change; simulation

CLC:: S158.2

DOI:: -

Abstract:: The results of physical and chemical analysis of soil samples showed that the diameter changing point of soil particles caused by soil erosion is about 0.2 mm in slope land, and soil erosion is one of the main causes of spatial distribution and redistribution of soil carbon and nutrient in slope land. As other conditions are fixed, the intensity of soil erosion and deposition determines the concentration of soil carbon and nutrient in slope land. After models of soil carbon, nutrient changing and soil erosion have been constructed, soil carbon and nutrient changes under soil erosion in each land unit of Wangjiaqiao watershed have been simulated and forecasted, which are based on IDRISIW GIS. The results of simulation showed that different element of soil nutrient (C, N, P, K) has different soil acceptable erosive modulus in different land use types, which means that one kind of soil element will decrease when soil acceptable erosive modulus is higher than the limited value.

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Last Update: 1900-01-01