Factors Affecting Runoff and Its Relationship with Rainfall Factors in Red Earth Hilly Regions in Jiangxi Province
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Factors Affecting Runoff and Its Relationship with Rainfall Factors in Red Earth Hilly Regions in Jiangxi Province
Bulletin of Soiland Water ConservationVol. 27, Issue 4, Pages: 7-10(2008)
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
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Published:2008
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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:
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:
Factors Affecting Runoff and Its Relationship with Rainfall Factors in Red Earth Hilly Regions in Jiangxi Province
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.