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Effect of forest little on water source conservation.

Geng Yuqing; Wang Baoping. Journal of Beijing Forestry University (2000)22(5)49~52 [Ch,8 ref.] College of Resource and Environment, Beijing For.Univ.,100083,P. R. China.  
In this experiment, simulated rainfall and evaporation methods were applied respectively to study the effect of forest litter on surface runoff, rainfall interception and water evaporation in different L and F composition under 11 different species. The results show that: ①for the role of water source conservation, the litter layer of L 2 cm+F 3 cm was the best, the second was the layer of F 3 cm; ② Among different tree species, Larix princips rupprechtii was the best, the second were Pinus tabulaeformis and Platycladus orientalis, the other eight broad leaf tree species were the third; ③The water evaporation course in the surface litter after moisture absorption can be illustrated with index function; ④The rainfall interception under middle rainfall amount were the largest.
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