Soil Moisture Physical Characteristics of Three Forest Types in Dagangshan Mountain in Jiangxi Province
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S152.75

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    Abstract:

    Research on soil bulk density,soil porosity,soil water retaining capacity and soil water storage of evergreen broad-leaved forest,Cunninghamia lanceolata and Phyllostachys pubescens stands was carried out in Dagangshan mountain in Jiangxi province.The results showed that:(1) The soil bulk density of three forest types increased with the increment of soil depth.In the layer of 0~80 cm,the soil bulk density of Cunninghamia lanceolata,Phyllostachys pubescens stands and evergreen broad-leaved forest was 1.29 g/cm3,1.24 g/cm3,1.20 g/cm3 respectively.(2) With the increment of soil depth,total porosity,capillary porosity,saturated moisture capacity,capillary holding capacity decreased gradually.(3) In the layer of 0~80 cm,the soil total and uncapillary porosity of evergreen broad-leaved forest was largest and that of Phyllostachys pubescens stands was least.However,the soil capillary porosity of evergreen broad-leaved forest was lowest and that of Phyllostachys pubescens stands was highest.(4) In the layer of 0~80 cm,the order of soil saturated,capillary and uncapillary holding capacity on soil was Phyllostachys pubescens stands,evergreen broad-leaved forest and Cunninghamia lanceolata.In the layer of 0~80 cm,the sequence of soil present and saturated water storage was Phyllostachys pubescens stands,evergreen broad-leaved forest and Cunninghamia lanceolata.(5) In the layer of 0~40 cm,the physical characteristics of Phyllostachys pubescens stands were obviously better than those of the other two.

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  • Revised:August 01,2007
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