Application of NAA in study of rill erosion process

LI Mian1  LI Zhanbin1  DING Wenfeng2 1

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Application of NAA in study of rill erosion process

更新时间：2021-03-12

- Application of NAA in study of rill erosion process
- NUCLEAR TECHNIQUES Issue 6, (2003)
- 作者机构：
  
  1. 中国科学院水土保持研究所
  2. 南京大学城市与资源系杨凌,712100
  3. ,南京,210093
- 作者简介：
- 基金信息：
  
  黄土高原土壤侵蚀与旱地农业国家重点实验室基金(10501-63);中国科学院知识创新工程项目(KZCX1-10-04)资助
- DOI：
  CLC： S157
- Published：01 June 2003
- 稿件说明：
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[1]李勉,李占斌,丁文峰.中子活化分析方法在细沟侵蚀过程研究中的应用[J].核技术,2003(06):425-428.

LI Mian1 LI Zhanbin1 DING Wenfeng2 1. Application of NAA in study of rill erosion process[J]. Nuclear techniques, 2003, (6): 425-428.
[1]李勉,李占斌,丁文峰.中子活化分析方法在细沟侵蚀过程研究中的应用[J].核技术,2003(06):425-428. DOI：

LI Mian1 LI Zhanbin1 DING Wenfeng2 1. Application of NAA in study of rill erosion process[J]. Nuclear techniques, 2003, (6): 425-428. DOI：

摘要

介绍了稀土元素（REE）示踪和中子活化分析（NAA）方法在土壤侵蚀研究方面的原理和方法

并用该方法对细沟侵蚀过程进行了初步研究。结果表明

REE示踪法不仅可定量测定不同坡位的侵蚀量

还可以揭示冲刷过程中各坡位相对侵蚀量的变化规律;该方法误差大多小于20%

其精确度完全能够满足土壤侵蚀研究的要求

为研究细沟侵蚀动态变化过程提供了一种可靠而有效的新方法。

Abstract

Based on the principle and method of rare earth elements (REE) tracer and NAA for the study of soil erosion

the changeable process of rill erosion on loess sloping surface was researched in runoff scouring experiments. The results showed that the REE tracer and NAA method can be used not only quantitatively to determine soil erosion amounts on different slope sections

but also to reveal the changeable trend of relative erosion amounts. The relative errors are mostly less than 20% for the tracing elements

which is considered satisfactory in the soil erosion studies.

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