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密云水库人工水源保护林降水再分配特征研究
引用本文:刘世海,余新晓,胡春宏,李国元.密云水库人工水源保护林降水再分配特征研究[J].北京水务,2003(1):14-16.
作者姓名:刘世海  余新晓  胡春宏  李国元
作者单位:1. 中国水利水电科学研究院,北京,100044;西北农林科技大学,陕西杨陵,712100
2. 北京林业大学水保学院,北京,100083
3. 中国水利水电科学研究院,北京,100044
基金项目:国家“十五”攻关专题“退耕还林还草工程区水源涵养型植被建设技术研究与示范”(2001 BA510B02-02),中德密云合作项目“密云水库集水区经营”项目资助。
摘    要:对密云水库北京集水区3种类型人工水源保护林降水再分配特征研究,结果表明,在研究的2年间,大气降水总量545mm,刺槐林穿透降水量为437.78mm,林冠截留量97.73mm,树干茎流量12.49min,油松林穿透降水量397.98mm,林冠截留量131.54mm,树干茎流量15.48mm,板栗要穿透降水量422.07mm,林冠截留量110.73mm,树干茎流量12.20mm,次降雨条件下,林内穿透降雨量与产供销降雨量之间呈线性相关,且呈极显著水平,林冠截留量与次降雨量之间呈指数正相关关系,亦呈极显著水平。

关 键 词:密云水库  人工  降水  水源保护林  林冠截留  林内穿透降雨  树干茎流

Studies on precipitation distribution property of the water resources protection forest in the Miyun Reservoir
LIU Shi-hai YU Xin-xiao HU Chun-hong LI Guo-yuan.Studies on precipitation distribution property of the water resources protection forest in the Miyun Reservoir[J].Beijing Water,2003(1):14-16.
Authors:LIU Shi-hai YU Xin-xiao HU Chun-hong LI Guo-yuan
Abstract:The paper studies the precipitation distribution property of three kinds of water resources protection forests, Robinia pseudoacacia, Pinus tabuleaeformis and Castanea mollissima, in the watershed of Miyun Reservoir in Beijing. With 545mm of total precipitation, the through-fall, canopy interception and stem-flow are 437.78mm, 97.73mm and 12.49mm for Robinia pseudoacacia forest; 397.98mm, 131.54mm and 15.48mm for Pinus tabuleaeformis forest; and 422.07mm, 110.73mm and 12.20mm for Castanea mollissima forest. The through-fall shows liner correlation with precipitation, whilst the interception exponential correlation with precipitation.
Keywords:Water resources protection forests Canopy interception Through-fall Stem-flow  
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