江西丘陵红壤区坡面径流及其与降雨关系的影响因素

尹忠东; 丛晓红; 李永慈

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江西丘陵红壤区坡面径流及其与降雨关系的影响因素

试验研究

- 江西丘陵红壤区坡面径流及其与降雨关系的影响因素
- Factors Affecting Runoff and Its Relationship with Rainfall Factors in Red Earth Hilly Regions in Jiangxi Province
- 水土保持通报 2008年27卷第4期页码：7-10
- 作者机构：
  
  1. 北京林业大学水土保持学院,北京,100083
  2. 北京市水利规划设计研究院,北京,100044
  3. 北京林业大学理学院,北京,100083
- 作者简介：
- 基金信息：
  
  国家重点基础研究发展计划项目(2007CB40720A);国家重点基面研究发展计划项目“西南紫色土区水土流失综合调控原理与治理范式”(2007CB407207-01)
- DOI：
  中图分类号：
- 纸质出版：2008
- 稿件说明：
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尹忠东, 丛晓红, 李永慈. 江西丘陵红壤区坡面径流及其与降雨关系的影响因素[J]. 水土保持通报, 2008,27(4):7-10.

YIN Zhong-dong, CONG Xiao-hong, LI Yong-ci. Factors Affecting Runoff and Its Relationship with Rainfall Factors in Red Earth Hilly Regions in Jiangxi Province[J]. Bulletin of Soiland Water Conservation, 2008, 27(4): 7-10.
尹忠东, 丛晓红, 李永慈. 江西丘陵红壤区坡面径流及其与降雨关系的影响因素[J]. 水土保持通报, 2008,27(4):7-10. DOI：

YIN Zhong-dong, CONG Xiao-hong, LI Yong-ci. Factors Affecting Runoff and Its Relationship with Rainfall Factors in Red Earth Hilly Regions in Jiangxi Province[J]. Bulletin of Soiland Water Conservation, 2008, 27(4): 7-10. DOI：

摘要

通过径流小区方法

对比观测了采取提高植被盖度

改顺坡耕作为横坡耕作

改直坡为梯田

地表覆盖死地被物4类治理措施9个不同小区地表径流量和同期降雨特征。在比较不同小区地表径流量的基础上

分别建立降雨量、降雨强度、降雨历时与地表径流量回归方程

分析了各种措施对于降雨径流相关性的影响。(1)采取4类措施后

地表径流量显著减少;(2)4种措施对于地表径流与降雨关系的影响存在相同趋势

即措施在降低地表径流量的同时

提高降雨量、降雨历时与地表径流量的相关性

降低降雨强度与地表径流的相关性。在耕作方式对比试验中

横坡耕作与顺坡耕作相比

在减少地表径流的同时

降雨强度与径流量相关性略有提高。地表覆盖和耕作措施在降低地表径流量的同时

也降低了降雨历时与地表径流相关性。

Abstract

Runoff and its relationship with rainfall factors are impacted by factors such as vegetation and tillage.Understanding the impact is the base of soil and water conservation and erosion models.4 types of soil ad water conservation measures were investigated in 9 runoff plots

and rainfall was recorded synchronously.Runoff from different plots is compared and regression equations are constructed between runoff and precipitation

rainfall intensity

and rainfall duration

respectively.Results show that the 4 measures can reduce runoff significantly.Rainfall?runoff relationship is affected by the four measures in the same way

which increases the correlation level between runoff and precipitation and rainfall duration and decreases the correlation level between runoff and rainfall intensity with two exceptions.Contour cultivation increases correlation level between runoff and rainfall intensity

and ground cover and contour cultivation decrease the correlation level between runoff and rainfall duration.

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