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Water Conservation Function of Different Forest Communities

Yang Hengyong(Youxi Forestry Committee of Fuian Province,365100)  
Water conservation funtion of different forest communities established on the clearcut area in evergreen broad-leaved forests was studied based on temporary sample plot data.The results revealed that the total water-holding capacity of the community dominated by Castanopsis carlesii was 313.89m/hm2 which was 9.18 percent and 9.70 percent greater than that of Chinese fir/shrubs community and Chinese fir/Ditranopteris dichotoma community,respectively.The Water-holding capacity of its forest floor was 1.7 times and 3.5 times that of the two above mixed communities,respectively.The water-holding capacity of Chinese fir Plantation established on the clearcut area in everygreen broad-leavd forests decreased compared with the originalforests for it was susceptible to fire and erosion.
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