Abstract
With the small watershed of Chongling in the Taihang Mountain area as the study area, and with the experimental data of the watershed test base collected for years, this paper studies the characteristics of rainfall, runoff and sediment yield of this area. The results show that the adequacy and inadequacy of rainfall in the study area was alternate from 1959 to 2017, and the interannual changes were large, showing non-significant trend of annual rainfall. Vegetation cover can retain surface runoff. When the rainfall was below 250mm in August, the runoff after afforestation was significantly reduced. When the rainfall was over 250mm in August, the runoff quantity changes before and after afforestation were not significant.
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