| Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhou: Ⅰ. Precipitation Distribution |
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| 作者姓名： | JIANG QIU-YI HE LI-MING YU YI-WU CHEN GUO-RUI SHI DE-FA |
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| 作者单位： | Zhejiang Forestry College, Lin’an. Zhejiang 311300;Zhejiang Forestry College, Lin’an. Zhejiang 311300;Zhejiang Forestry College, Lin’an. Zhejiang 311300;Zhejiang Forestry College, Lin’an. Zhejiang 311300;Zhejiang Forestry College, Lin’an. Zhejiang 311300 |
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| 基金项目： | Project supported by the Laboratory of Material Cycling in Pedosphere, Institute of Soil Science, Chinese Academy of Sciences. |
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| 摘 要： | Through the long-term plot studies plot studies on the precipitation distribution in the evergreen broad-leaved forest ecosystem in Hangzhou for two years,it was indicated that the pattern of precipitation distribution included larger amounts of penetration water and stemflow and a lower amount of interception water.The results revealed that the main factors to infulence the percentages of penetration and stemflow were the air temperature and the leaf area of the forest.The quantity of seepage through the litter layer was much larger than that through the soil layers which decreased sharply with soil depth.The output of water from the ecosystem by surface runoff and deep infiltration through the soil was much lower,only being 5.20 percent of the rainfall,while the water evapotranspiration loss was as large as more than 90 percent of it.The losses by the soil evaporation and plant evapotranspiration were the largest part of output in this forest ecosystem.
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| 关 键 词： | 森林生态系统 降雨 水量平衡 常绿阔叶林 物质循环 杭州市 水量分配 |
Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhou:I.Precipitation Distribution |
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| JIANG QIU-YI,HE LI-MING,YU YI-WU,CHEN GUO-RUI,SHI DE-FA.Studies on Material Cycling in Evergreen Broad-Leaved Forest Ecosystem in Hangzhou:I.Precipitation Distribution[J].Pedosphere,1993,3(3):221-230. |
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| Authors: | JIANG QIU-YI HE LI-MING YU YI-WU CHEN GUO-RUI and SHI DE-FA |
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| Abstract: | Through the long-term plot studies plot studies on the precipitation distribution in the evergreen broad-leaved forest ecosystem in Hangzhou for two years,it was indicated that the pattern of precipitation distribution included larger amounts of penetration water and stemflow and a lower amount of interception water.The results revealed that the main factors to infulence the percentages of penetration and stemflow were the air temperature and the leaf area of the forest.The quantity of seepage through the litter layer was much larger than that through the soil layers which decreased sharply with soil depth.The output of water from the ecosystem by surface runoff and deep infiltration through the soil was much lower,only being 5.20 percent of the rainfall,while the water evapotranspiration loss was as large as more than 90 percent of it.The losses by the soil evaporation and plant evapotranspiration were the largest part of output in this forest ecosystem. |
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