A Study on <sup>137</sup>Cs method Used in Controlling Erosion on the Loess Mao (round Loess mound) and Slopes

Wang Yangchun; Zhang xinbao; Li Shaolong; Zhao Qingchang; Jiang Jinjiang; Zhang Yiyun; Yan Meiqiong; Wu LiPing

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A Study on ¹³⁷Cs method Used in Controlling Erosion on the Loess Mao (round Loess mound) and Slopes

- A Study on ¹³⁷Cs method Used in Controlling Erosion on the Loess Mao (round Loess mound) and Slopes
- Bulletin of Soiland Water Conservation Vol. 10, Issue 3, Pages: 34-37(1991)
- 作者机构：
  
  1. 中国科学院水利部成都山地灾害与环境研究所,四川,成都
  2. 四川大学,成都市
- 作者简介：
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- Published：1991
- 稿件说明：
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Wang Yangchun, Zhang xinbao, Li Shaolong, et al. A Study on ¹³⁷Cs method Used in Controlling Erosion on the Loess Mao (round Loess mound) and Slopes[J]. Bulletin of Soiland Water Conservation, 1991, 10(3): 34-37.
DOI：

Wang Yangchun, Zhang xinbao, Li Shaolong, et al. A Study on ¹³⁷Cs method Used in Controlling Erosion on the Loess Mao (round Loess mound) and Slopes[J]. Bulletin of Soiland Water Conservation, 1991, 10(3): 34-37. DOI：

摘要

本文运用

137

Cs法

对陕北峁坡耕地的土壤侵蚀与泥沙运移进行了研究

定量地分析了峁坡侵蚀的特征

指出峁坡侵蚀存在由上往下呈强烈、减弱

再强烈、再减弱的波动。并利用非农耕地和农耕地土壤侵蚀公式

计算了峁顶非农耕地自1963年以来的侵蚀模数为1068t/（km

·a）;农耕地的侵蚀模数为4059t/（km

·a）。并与径流试验场实测的梁峁坡坡耕地侵蚀模数进行了对比分析。

Abstract

137Cs method was used to study soil erosion and sediment transportation in the farmlands on Mao (round loess mound) and slopes in North Shaanxi in this paper. A quantitative analysis was made of the erosion properties on Mao and slopes. The results indicated that erosion on Mao and slopes appeared to fluctuate very strongly

weakly

and very strongly again

and then weakly from the ups to the downs. Also

erosion equation for non-agricultural lands and agricultural lands has been used to calculate the modulus of erosion in non-agricultural lands on the Mao top since 1963

being 1 068 t/(km2·a)

while the modulus of erosion in agricultural lands is 4059 t/(km2·a)

Also

a comparative analysis was made of actual determined modulus of erosion of sloping farmlands in the runoff experimental fields on Liang (elongated loess mound)

Mao and slopes.

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A Study on 137Cs method Used in Controlling Erosion on the Loess Mao (round Loess mound) and Slopes

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A Study on ¹³⁷Cs method Used in Controlling Erosion on the Loess Mao (round Loess mound) and Slopes