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| Hydrological effect of forest litter and soil in Jinyun mountain of Chongqing |
| Sun Yanhong,Zhang Hongjiang,Cheng Jinhua,Wang Yujie,Cheng Yun,Shi Jian |
Key Laboratory of Soil and Water Conservation & Desertification Combating,Ministry of Education,College of Soil and Water Conservation,Beijing
Forest University,100083,Beijing,China |
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Abstract In order to know the soil characteristics of subtropic evergreen broadleaf forest in mid-Asia,four forest stands in Jinyun mountain of Chongqing was selected as objects.Through investigating standard spots,determining soil physical characteristics and water-holding capacity,and experimenting on soil infiltration,forest litter and soil hydrological effect was studied.The results indicated that the forest soils of 1m deep have an obviously strong water-holding capacity wlthin a range from 9.50 to 13.17mm.The litter storage amount is from 16.21 to 32.42t/hm2.The sequence of maximal water retention rate of litter is the coniferous and broad-leaves mixed forestlands>shrub lands>evergreen broad-leaves forestlands> phyllostachys pubescens forestlands.The sequence of maximal water retention of litter is the shrub lands> coniferous and broad-leaves mixed forestlands> evergreen broad-leaves forestlands> phyllostachys pubescens forestlands.The Philip（infiltration） model can better reflect the soil infiltration process of different forest types in research area.
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Received: 10 October 2005
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