Theoretical Analysis of the Rainfall and Runoff in Loess Plateau Area
Hekouzhen-Longmen reach on the middle reaches of the Yellow River belongs to Loess plateau area. This region is the most serious soil erosion area,as well as the storm and the main sediment producing area. Since this region is the typical runoff generation over infiltration area,the precipitation intensity is the main factor affecting the runoff discharge and peak flow. Due to the different spatial and temporal distributions,the magnitudes of flood vary greatly even under the same daily precipitation,no mention to analyze the relationship of water and sediment using the correlation between monthly or annual precipitation and runoff. The amount of runoff and sediment under general rainfall reduced with the influences of human activities such as soil and water conservation. However,it is still possible to have a big flood with high sediment concentration in this area when rare strong storm happened.
国家科技期刊平台
NSTL
万方数据
维普
