The spatial variance of hill slope erosion in Loess Hilly Area by <sup>137</sup>Cs tracing method

LI Mian1 YANG Jianfeng1 HOU Jiancai2 SHEN Zhenzhou1 1

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The spatial variance of hill slope erosion in Loess Hilly Area by ¹³⁷Cs tracing method

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- The spatial variance of hill slope erosion in Loess Hilly Area by ¹³⁷Cs tracing method
- NUCLEAR TECHNIQUES Vol. 32, Issue 1, (2009)
- 作者机构：
  
  1. 黄河水利科学研究院,水利部黄河泥沙重点实验室
  2. 河南省水利厅
- 作者简介：
- 基金信息：
  
  国家973计划(2007CB407202);国家自然科学基金(50479066);国家科技支撑计划(2006BAB06B01-06);黄河水利科学研究院科技发展基金(黄科发200603)资助
- DOI：
  CLC： S157.1
- Published：01 January 2009
- 稿件说明：
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[1]李勉,杨剑锋,侯建才,申震洲.~(137)Cs示踪法研究黄土丘陵区坡面侵蚀空间变化特征[J].核技术,2009,32(01):50-54.

LI Mian1 YANG Jianfeng1 HOU Jiancai2 SHEN Zhenzhou1 1. The spatial variance of hill slope erosion in Loess Hilly Area by ¹³⁷Cs tracing method[J]. Nuclear techniques, 2009, 32(1): 50-54.
[1]李勉,杨剑锋,侯建才,申震洲.~(137)Cs示踪法研究黄土丘陵区坡面侵蚀空间变化特征[J].核技术,2009,32(01):50-54. DOI：

LI Mian1 YANG Jianfeng1 HOU Jiancai2 SHEN Zhenzhou1 1. The spatial variance of hill slope erosion in Loess Hilly Area by ¹³⁷Cs tracing method[J]. Nuclear techniques, 2009, 32(1): 50-54. DOI：

摘要

利用放射性同位素示踪技术

对黄土丘陵区不同坡长坡面土壤剖面中137Cs含量测定与分析

研究了坡面土壤侵蚀强度的空间变化特征。结果表明

坡长对坡面侵蚀强度的空间分布有重要影响

坡面侵蚀强度呈波动变化趋势。小流域全坡面水流汇集过程中

净泥沙流失强度随流程的增加先增加后减少。

Abstract

Based on analysis of 137Cs activities in soil profiles on hill slope of different slope lengths in the Loess Hilly Area in China

the spatial variance of erosion was studied. The results show that the slope length has great impact on the spatial distribution of the soil erosion intensity

and the soil erosion intensity on loess hill slope was in a fluctuating tendency. In the influx process of runoff in a small watershed

net soil loss intensity increased first and then decreased with flow distance.

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Related Institution

College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University

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清华大学水沙科学与水利水电工程国家重点实验室

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The spatial variance of hill slope erosion in Loess Hilly Area by 137Cs tracing method

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摘要

Abstract

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The spatial variance of hill slope erosion in Loess Hilly Area by ¹³⁷Cs tracing method