Transference kinetics of active cobalt in wheat-soil system

SUN Zhiming  CHEN Chuanqun  WANG Shouxiang

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Transference kinetics of active cobalt in wheat-soil system

更新时间：2021-03-12

- Transference kinetics of active cobalt in wheat-soil system
- NUCLEAR TECHNIQUES Issue 1, (2001)
- 作者机构：
  
  1. 浙江大学原子核农业科学研究所,杭州,310029
  2. 华东师范大学数学系,上海,200062
- 作者简介：
- 基金信息：
  
  国家自然科学基金 !(395 70 149)
- DOI：
  CLC： X591
- Published：01 January 2001
- 稿件说明：
移动端阅览
[1]孙志明,陈传群,王寿祥,王辅俊.放射性钴在小麦-土壤系统中的迁移动力学[J].核技术,2001(01):52-56.

SUN Zhiming CHEN Chuanqun WANG Shouxiang. Transference kinetics of active cobalt in wheat-soil system[J]. Nuclear techniques, 2001, (1): 52-56.
[1]孙志明,陈传群,王寿祥,王辅俊.放射性钴在小麦-土壤系统中的迁移动力学[J].核技术,2001(01):52-56. DOI：

SUN Zhiming CHEN Chuanqun WANG Shouxiang. Transference kinetics of active cobalt in wheat-soil system[J]. Nuclear techniques, 2001, (1): 52-56. DOI：

摘要

研究了6 0 Co在小麦 -土壤系统中的迁移、消长和分配动态。结果表明

进入土壤表面的6 0 Co将在系统内发生迁移。小麦植株中6 0 Co比活度起初随时间迅速增高

在达到某一最大值后开始下降 ;小麦各部位中6 0 Co比活度的大小顺序为 :麦根 >麦秸 >麦壳 >麦粒。土壤中6 0 Co主要滞留于表层 5cm内

其比活度与距土表深度呈单项指数负相关 ;小麦对土壤中的6 0 Co具有一定的富集能力。

Abstract

Studies on the dynamics of transportation

accumulation

disappearance and distribution of 60 Co in the wheat-soil system were accomplished. It was shown that 60 Co was transported rapidly in the system after it was put into the surface layer of soil. The specific activity of 60 Co in wheat plant rapidly increased to a maximum value

then decreased. The specific activity of 60 Co in each part of wheat plant was found to be arranged in order of root 》 straw 》 husk > seed. 60 Co is mainly detained in 5cm of soil surface

and specific activity of 60 Co in soil present an individual exponential declining with depth of soil. The wheat plant has some ability to accumulate 60 Co in soil.

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