PU Li jie, HAN Shu cheng, JIN Ping hua, et al. Relationship Between 137Cs Content and Composition of Soil Particles in Red Soil Region--A Case Study of Fengcheng City,Jiangxi Province[J]. Bulletin of Soiland Water Conservation, 2006, 25(4): 11-15.
PU Li jie, HAN Shu cheng, JIN Ping hua, et al. Relationship Between 137Cs Content and Composition of Soil Particles in Red Soil Region--A Case Study of Fengcheng City,Jiangxi Province[J]. Bulletin of Soiland Water Conservation, 2006, 25(4): 11-15.DOI:
The 137Cs tracing method is extensively used in the research fields of soil erosion and sediment transportation.For using the method
it is very important to determine the relationship between 137Cs and the composition of soil particles.However
at present
research on this aspect is not well conducted.So
based on the data of 39 soil profiles in different areas of red soil
this paper analyzed the relationship between 137Cs content and the composition of soil particles using statistical methods.The result showed that 137Cs had a positive correlation with sand and silt contents
and had a negative correlation with gravel and clay contents within 20 cm of the soil surface.Then through correlation analysis and stepwise regression analysis
it was found that in different layers
sand content was the main factor contributing to 137Cs.The quantitative model for the relationship between 137Cs and the composition of soil particles was constructed.The model showed that 137Cs increased with the increasing of sand content.