Advances in Earth Science ›› 1998, Vol. 13 ›› Issue (3): 232-237. doi: 10.11867/j.issn.1001-8166.1998.03.0232

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PROGRESS IN THE STUDY OF THE SOIL EROSION USING RADIONUCLIDES

Bai Zhanguo 1,Wan Guojiang 2   

  1. 1.Key Laboratory of Plant Nutrition of Ministry of Agriculture, Institute of Soils and Fertilizers,Chinese Academy of Agricultural Sciences, Beijing 100081;2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002
  • Received:1997-07-22 Revised:1997-11-08 Online:1998-06-01 Published:1998-06-01

Bai Zhanguo,Wan Guojiang. PROGRESS IN THE STUDY OF THE SOIL EROSION USING RADIONUCLIDES[J]. Advances in Earth Science, 1998, 13(3): 232-237.

In this paper, we described the latest progress in the study on seasonal surface soil erosion and its coupling relationship to lake sedimentation using 7Be. Meanwhile,137Cs reliability for tracing soil particle accumulation and for sediment dating was confirmed. Differentiation of 226Ra/228Ra activity ratios in different geochemical fractions in the soils could be used as a parameter to trace accumulation and/or erosion of soil particles. 210Pb geochemical behaviour in the soils and sediments and its effecting factors was studied under different conditions. The coupling relationship between soil erosion rates traced by 210Pb and lake sediment ation proved that 210Pb was reliable for tracing accumulation rate of soil particles.

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