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[1]LIU Gang,XU Wen-nian,CAI Chong-fa,et al.Assessment of Soil Erosion Risk Based on Loess Deposition Rate[J].Research of Soil and Water Conservation,2012,19(02):19-21,25.

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Assessment of Soil Erosion Risk Based on Loess Deposition Rate

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 02 Page number: 19-21,25 Column: Public date: 2012-04-20

Title:: Assessment of Soil Erosion Risk Based on Loess Deposition Rate

Author(s):: LIU Gang^1,2,3, XU Wen-nian¹, CAI Chong-fa³, LIU Pu-ling², YANG Ming-yi², ZHANG Qiong¹; 1. Engineering Reseach Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, Hubei 443002, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China

Keywords:: ¹⁴C age; loess deposition rate; soil erosion rate; soil loess tolerance; the Holocene

CLC:: S157.1

DOI:: -

Abstract:: Soil erosion risk is an important index for evaluation and prediction on risk of land resources and ecological environment which is destroyed by soil erosion,and also a basis for soil and water conservation.Radiocarbon dating method was used to examine loess deposition rate in north Shaanxi Province.And soil erosion risk in this area was assessed by the ratio of soil erosion modulus and loess deposition rate.The results indicated that the loess deposition rate in Luochuan,Yanchang,and Hengshan was 0.0179cm/a,0.0153cm/a,and 0.0213cm/a,respectively.The soil erosion risks were 14.1,43.3,and 24.8,individually,which were much lager than the critical value 1.Thus,the research area was an important region for soil and water conservation.This result could provide scientific references for management and programming of soil and water conservation,and theoretical basis for environmental treatment decision.

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