| 华北土石山区油松人工林耗水分配规律 |
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| 引用本文： | 陈丽华,杨新兵,鲁绍伟,孙庆艳,肖洋,王宇.华北土石山区油松人工林耗水分配规律[J].北京林业大学学报,2008(Z2). |
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| 作者姓名： | 陈丽华 杨新兵 鲁绍伟 孙庆艳 肖洋 王宇 |
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| 作者单位： | 水土保持与荒漠化防治教育部重点实验室北京林业大学水土保持学院;河北农业大学林学院; |
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| 基金项目： | 北京市科委重大项目(D0706007040191-07); 国家林业局“重大林业生态工程生态效益分析评价技术与应用”项目(2006-69) |
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| 摘 要： | 通过野外和室内试验相结合,对华北土石山区油松人工林耗水分配规律进行研究。结果表明:林分总耗水主要包括3个方面:林冠截留蒸发、植物蒸腾耗水和土壤物理蒸发耗水。油松林地总耗水为516.52mm,其中林冠截留占总耗水量的25.63%,土壤蒸发占22.15%,植物蒸腾耗水占52.22%,三者比例为1:0.86:2.04。油松平均林冠截留率为25.4%,平均透流率为64.4%,平均干流率为0.55%,干流雨、林内降雨和林外降雨有很好的线性关系。油松林枯落物最大持水量为1.5mm、枯落物年截水量为48.7mm,占总降雨的10.42%。油松林林内土壤水分蒸发为114.41mm,林外蒸发为197.70mm。油松林生长季林木蒸腾耗水量为269.74mm,6、8月出现两个峰值。
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| 关 键 词： | 林冠截留 枯落物持水 土壤蒸发 树木蒸腾耗水 耗水分配 |
Distribution of water consumption of Pinus tabulaeformis plantation in rocky mountain areas in northern China |
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| CHEN Li-hua,YANG Xin-bing ,LU Shao-wei,SUN Qing-yan,XIAO Yang,WANG Yu. Key Laboratory of Soil , Water Conservation & Desertification Combating of Ministry of Education,School of Soil , Water Conservation,Beijing Forestry University,P.R.China, Forestry College,Agricultural University of Hebei,Baoding,P.R.China..Distribution of water consumption of Pinus tabulaeformis plantation in rocky mountain areas in northern China[J].Journal of Beijing Forestry University,2008(Z2). |
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| Authors: | CHEN Li-hua YANG Xin-bing LU Shao-wei SUN Qing-yan XIAO Yang WANG Yu Key Laboratory of Soil Water Conservation & Desertification Combating of Ministry of Education School of Soil Water Conservation Beijing Forestry University PRChina Forestry College Agricultural University of Hebei Baoding PRChina |
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| Institution: | CHEN Li-hua1,YANG Xin-bing 1,2,LU Shao-wei1,SUN Qing-yan1,XIAO Yang1,WANG Yu1.1 Key Laboratory of Soil , Water Conservation & Desertification Combating of Ministry of Education,School of Soil , Water Conservation,Beijing Forestry University,100083,P.R.China,2 Forestry College,Agricultural University of Hebei,Baoding,071001,P.R.China. |
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| Abstract: | Based on field investigation and laboratory experiments,we studied the distribution of water consumption of Pinus tabulaeformis plantation in rocky mountain areas in north China.Results show that water consumption of forest mainly includes three aspects,i.e.evaportion of conopy interception,water consumption for plant transpiration,water consumption of physical soil evaporation.The total water consumption of P.tabulaeformis plantation is 516.52 mm,among which,canopy interception accounts for 25.63%,soil eva... |
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| Keywords: | canopy interception water-holding capacity of litter soil evaporation water consumption of tree transpiration distribution of water consumption |
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