中国水土保持科学2013，Vol.11Issue(3)：55-58,4.
北京山区油松的耗水规律
Water consumption of Pinus tabuliformis in Beijing Mountain Area
摘要
Abstract
In order to explore the evapotranspiration of evergreen trees in Beijing Mountainou Area,the dynamic change of Pinus tabuliformis transpiration in the West Mountain Area of Beijing was continuously and high-precision measured in June 2010 using large-scale weighing lysimeter.Combined with the observational data of meteorological factors,the correlation between transpiration intensity and meteorological factors was analyzed.The results showed that:In sunny days,diurnal variation of transpiration of Pinus tabulaeformis showed a single-peak curve trend and the maximum was found at noon,which was in accordance with the solar radiation intensity and the temperature.But in rainy days,it showed the multi-peak curve trend.Transpiration intensity (Ti) was significantly related to atmospheric temperature (Ta),relativeair humidity (RH),canopy net radiation (Rn) and vapor pressure deficit (VPD),the regression equation was Ti =2.228-0.07Ta-0.032RH-0.002Rn + 1.108VPD.关键词
大型称重式蒸渗仪/蒸腾强度/气象因子/油松耗水/北京山区Key words
large-scale weighing lysimeter/ transpiration intensity/ meteorological factors/ water consumption of Pinus tabuliformis/ Beijing Mountain Area分类
农业科技引用本文复制引用
贾剑波,余新晓,李轶涛,王贺年..北京山区油松的耗水规律[J].中国水土保持科学,2013,11(3):55-58,4.基金项目
"十二五"国家科技支撑项目"海河上游水源涵养林体系构建技术研究与示范"(2011BAD38B05) （2011BAD38B05）
国家林业公益性行业科研专项经费项目"典型森林植被对水资源形成过程的调控研究"(201104005) （201104005）
