A Study on Intercepting Rainfall of Grassland of Astragulus adsurgens in Loess Hilly Region

Zhang Guanghui; Liang Yimin

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A Study on Intercepting Rainfall of Grassland of Astragulus adsurgens in Loess Hilly Region

- A Study on Intercepting Rainfall of Grassland of Astragulus adsurgens in Loess Hilly Region
- Bulletin of Soiland Water Conservation Vol. 14, Issue 3, Pages: 28-32(1995)
- 作者机构：
  
  中国科学院水利部西北水土保持研究所
- 作者简介：
- 基金信息：
- DOI：
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- Published：1995
- 稿件说明：
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Zhang Guanghui, Liang Yimin. A Study on Intercepting Rainfall of Grassland of Astragulus adsurgens in Loess Hilly Region[J]. Bulletin of Soiland Water Conservation, 1995, 14(3): 28-32.
DOI：

Zhang Guanghui, Liang Yimin. A Study on Intercepting Rainfall of Grassland of Astragulus adsurgens in Loess Hilly Region[J]. Bulletin of Soiland Water Conservation, 1995, 14(3): 28-32. DOI：

摘要

本文采用称重法研究了黄土丘陵区沙打旺草地对降雨的截留作用。结果表明：截留量（P

）与草地盖度（C）、降雨强度（I）及降雨时间（t）之间存在P

＝-0.0186＋0.0601CIt－0.00612C

的关系；沙打旺草地最大截留率为29.7％；同时分析了盖度、雨强、降雨时间对草地截留的影响。

Abstract

The intercepting rainfall of grassland of Astragulus adsurgens in loess hilly region wasstudied by using weight method in this paper.The result showed that there was an equatoin as fol-lows

pj=-0. 0186 + 0.0601CIt-0.00612C2I2t2 among interecepting rainfall(Pj)

grasslandcoverage(C)

rain intensity(I)

and rain time(t).The maximum intercepting rainfall rate was29.7%. Meanwhile

the impact of coverage

rain intensity and rain time on intercepting rainfall was discussed.

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Related Institution

College of Natural Resources and Environment， Northwest A&F University， Yangling

College of Agronomy （Agricultural Research Institute）， Northwest A&F University， Yangling

Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling

Baoji Vocational Technique College

College of Life Sciences,Northwest Sci-Tech University of Agriculture & Forestory,Yangling

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