降水变化对不同下垫面的水土流失之分异影响

陈维杰

doi:11894/1005-829x.2008.28(1).73

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降水变化对不同下垫面的水土流失之分异影响

试验研究

- 降水变化对不同下垫面的水土流失之分异影响
- Influences of Precipitation Change on Soil Erosion Distribution Under Different Underlying Surface Conditions
- 水土保持通报 2008年27卷第1期页码：73-75
- 作者机构：
  
  汝阳县水利水保技术推广站, 河南汝阳,471200
- 作者简介：
- 基金信息：
  
  中国科学院知识创新重要项目
- DOI：11894/1005-829x.2008.28(1).73
  中图分类号： P208
- 纸质出版：2008
- 稿件说明：
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陈维杰. 降水变化对不同下垫面的水土流失之分异影响[J]. 水土保持通报, 2008,27(1):73-75.

CHEN Weijie. Influences of Precipitation Change on Soil Erosion Distribution Under Different Underlying Surface Conditions[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 73-75.
陈维杰. 降水变化对不同下垫面的水土流失之分异影响[J]. 水土保持通报, 2008,27(1):73-75. DOI： 11894/1005-829x.2008.28(1).73.

CHEN Weijie. Influences of Precipitation Change on Soil Erosion Distribution Under Different Underlying Surface Conditions[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 73-75. DOI： 11894/1005-829x.2008.28(1).73.

摘要

降水是产生土壤侵蚀的主要原动力。以豫西土石山区的汝阳县和黄土丘陵区的嵩县为例

通过对实测的雨强、坡度等水土流失因子的观测和研究

初步探讨了降水变化对不同下垫面(梯田、林地、坡耕地、荒坡)造成的水土流失之分异影响

并推求出组合方程式表达其影响规律。结果表明

荒坡和坡耕地的蓄水作用最差

梯田和林地的蓄水功效则较高。在小流域治理过程中

应当把梯田、林地以及配套的沟道整治工程等作为重要的雨水存贮措施。

Abstract

Precipitation is the main driving force to induce soil erosion. By taking Ruyang County in the earth rocky mountainous area and Song County in the loess hill area as examples

the influences of the change of precipitation on soil erosion distribution under differentunderlying surface conditions (terrace

forestland

slope cultivated land

and abandoned slope) were studied. Soil erosion factors

such as rainfall intensity and slope

were observed and analyzed. A combined equation was derived to express the influence. Results showed thatthe water storage capacity of abandoned slope and slope cultivated land was lower and the water storage capacity of terrace and forestland was higher. So

terrace and forestland

as well as the supplementary gully managementengineerings

should be adopted as the importantmeasures of rainfall water storage through full argumentation.

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