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[1]TAN Zhengxin,WAN Fuxu,ZHANG Tao.Hydrological Effect of Litter and Soil in Planted Forest in Xuyi Country[J].Research of Soil and Water Conservation,2015,22(04):184-188.

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Hydrological Effect of Litter and Soil in Planted Forest in Xuyi Country

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 04 Page number: 184-188 Column: Public date: 2015-08-28

Title:: Hydrological Effect of Litter and Soil in Planted Forest in Xuyi Country

Author(s):: TAN Zhengxin, WAN Fuxu, ZHANG Tao; College of Forestry, Nanjing Forest University, Nanjing 210000, China

Keywords:: forest soil; forest litter; water conservation; forest hydrological effect; water-holding characteristic

CLC:: S718

DOI:: -

Abstract:: The litter storage, the water-holding capacities and soil hydrological properties in the 5 types of planted forest in Volcanic Hillyland of Xuyi were examined. The results showed that the litter storage volumes were 5.12~15.31 t/hm², the max water-holding percentage ranged from 164.09% to 250.76%, the max water-hoolding capacities ranged from 8.40 t/hm² to 41.18 t/hm², the effective water-hoolding capacities ranged from 3.55 t/hm² to 28.12 t/hm², the sequence from high to low level was Populus L forestland > Celtis sinensis Pers forestland > Amygdalus persica L forestland > Myrica rubra (Lour.) Zucc forestland > Cupressus lusitanica forestland. The dynamic changes in water-holding capacity, water-absorbent rate and time of forest litters under different forest types were basically similar. The water holding capacity of litter increased with extension of water immersion and being immersed in water for 24 hours, the forest litter usually reached its maximum water-holding capacity. The water-holding capacity and absorption speed of the first 2 hours were superior to the rest of time. The relation between the water-holing capacity of the litter layer and the immerse time could be described by the equation:Q=aln(t)+b, the relation between the water absorption speed of the litter layer and the immerse time could be described by the equation:V=ktⁿ. The maximum moisture content and capillary moisture content of Populus L were the highest, with the values of 1 207.30 t/hm² and 8.35 mm/min, respectively, and the soil water infiltration rate under Populus L forestlands is the highest.

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