Researching on the canopy precipitation interception

litter layer water-holding capacity

soil physical property and water holding capacity of main artificial forest type and waste grassland in Lianhua lake reservoir area.The results indicate that the canopy interception were 34.83%

13.05%

19.61%

the stem-flow were 6.79%

0.58%

4.01%

the throughfall were 58.37%

86.18%

77.66% of Korean pine

Larch

weed trees

respectively.The maximum water retention percentage of litter layers was 278.2%

295.3%

260.3%

154.8% of Larix gmelinii plantations

Pinus koraiensis

weed trees

waste grassland

respectively.The result shows that the litter layers of Pinus koraiensis had the best water absorption capacity and the waste grassland had the worst in different vegetations in Lianhua lake catchments.The maximum water storage in different forest type varied from 1 838.6~2 186.3 t/hm2

and the order was Larch> weed trees> Korean pine >waste grassland;In the matter of soil layer thickness

it manifested a tendency of lowering in soil infiltration rate with the drop layer.In other words

the spatial characteristics of soil infiltration rate along the soil layer is up layer>middle layer> down layer.By using runoff plots

this paper discussed the correlation between runoff generation and sediment generation and interception factor in 4 runoff plots.The results showed that runoff generation yield and sediment yield generation had a significant correlation with rainfall and its intensity.