Relationship Between 137Cs Activities and Soil Particle Size in Purple Surface Soil on Grass Land

He Liangguo; Zhang Yiyun; Li Jiazhu; Qi Yongqing; Long Yi; He Xiubin; Zhang Xinbao

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Relationship Between 137Cs Activities and Soil Particle Size in Purple Surface Soil on Grass Land

- Relationship Between 137Cs Activities and Soil Particle Size in Purple Surface Soil on Grass Land
- Bulletin of Soiland Water Conservation Vol. 26, Issue 2, Pages: 43-45(2007)
- 作者机构：
  
  1. 四川大学物理科学与技术学院,四川,成都,610064
  2. 中国科学院水利部成都山地灾害与环境研究所,四川,成都,610041
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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He Liangguo, Zhang Yiyun, Li Jiazhu, et al. Relationship Between 137Cs Activities and Soil Particle Size in Purple Surface Soil on Grass Land[J]. Bulletin of Soiland Water Conservation, 2007, 26(2): 43-45.
DOI：

He Liangguo, Zhang Yiyun, Li Jiazhu, et al. Relationship Between 137Cs Activities and Soil Particle Size in Purple Surface Soil on Grass Land[J]. Bulletin of Soiland Water Conservation, 2007, 26(2): 43-45. DOI：

摘要

紫色土草地表层土壤的137Cs比活度与样品的筛分中值粒径(d50)相关较好

而与颗分中值粒径没有明显的相关性。137Cs主要被吸附于土壤颗粒的表面

土壤团聚体表面的矿物、岩石碎屑颗粒的137Cs吸附浓度高于团聚体内部的碎屑颗粒。筛分粒度中等的样品有机质含量高

粗和细粒度的样品有机质含量均低

137Cs比活度和有机质含量无明显相关。

Abstract

137Cs activities in purple surface soil on grass land have a good relationship with the medium grain size (d50) by sieving method

but do not have a defined relationship with the medium grain size (d50) by normal method. 137Cs is mainly absorbed to surfaces of soil particles

and 137Cs concent rations of the mineral and rock particles in surface layers of the aggregates should be higher than those of the particles in the inner layers of the aggregates. As organic concent rations of the samples of medium size are higher than those of both coarse and fine samples

there is no relationship between 137Cs activities and organic concent rations.

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