Advance of <sup>7</sup>Be as A Tracer in Studying Sloping Erosion

LI Li-qing; YANG Ming-yi; LIU Pu-ling

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Advance of ⁷Be as A Tracer in Studying Sloping Erosion

- Advance of ⁷Be as A Tracer in Studying Sloping Erosion
- Bulletin of Soiland Water Conservation Vol. 22, Issue 2, Pages: 69-72(2003)
- 作者机构：
  
  1. 中国科学院水土保持与生态环境研究中心
  2. 西北农林科技大学
  3. 水土保持研究所, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：2003
- 稿件说明：
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LI Li-qing, YANG Ming-yi, LIU Pu-ling. Advance of ⁷Be as A Tracer in Studying Sloping Erosion[J]. Bulletin of Soiland Water Conservation, 2003, 22(2): 69-72.
DOI：

LI Li-qing, YANG Ming-yi, LIU Pu-ling. Advance of ⁷Be as A Tracer in Studying Sloping Erosion[J]. Bulletin of Soiland Water Conservation, 2003, 22(2): 69-72. DOI：

摘要

Be是自然界产生的一种放射性核素

半衰期为53.3d

通过干湿沉降到达地表

被土壤颗粒强烈吸附

随土粒的迁移而发生再分布

因此可作为土壤侵蚀的示踪剂。本文就将

Be目前在土壤侵蚀研究中的应用现状做了介绍

并对今后利用

Be示踪土壤侵蚀提出了建议。

Abstract

Beryllium-7 is environmental or fallout radionuclide with a half-life of 53. 3 days

which is produced primarily by the bombardment of the earth atmosphere by cosmic rays. It is subsequently transported into the soil surface by wet and dry deposition. It is rapidly and strongly absorbed by soil particles and redistributes with soil particles. Therefore

it 7Becan be used as a tracer for studying soil erosion. The recent progress in the use of the environmental radionuclide beryllium-7 (7Be) for investigating rates of soil erosion and deposition is introduced

and suggestions for applying it into soil erosion are proposed.

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Related Institution

The State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation CAS and MWR, Yangling

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Water Information Center Ministry of Water Resoures ,Beijing Municipality

Changsha General Survey of Natural Resources Center， China Geological Survey， Ningxiang

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Advance of 7Be as A Tracer in Studying Sloping Erosion

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摘要

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Advance of ⁷Be as A Tracer in Studying Sloping Erosion