摘要
参阅近年来国内外研究结果,揭示了乔木蒸腾耗水的内在调节机制(根系吸水、水分传输通道的输水、冠层叶片的水汽蒸腾扩散)和外部影响因素(微气象因子、土壤因子、边界层导度);对研究乔木水分利用的研究尺度(叶片水平、单株水平、林分水平和区域水平)进行了详细综述。认为热技术法是当前测定乔木蒸腾耗水比较理想的方法,并在此基础上对未来的研究方向做了展望。
According to domestic and foreign research on tree transpiration, internal adjustment mechanism of tree transpiration ( root, water channel and canopy of leaves) and exterior factors ( microclimate factors, soil factors, etc. ) were shown. The scale of studying tree's water use (leaf level, individual level, forest and regional level) was reviewed in detail. At last, it was concluded that the thermal dissipation probe was rather a perfect method to study tree transpiration and the research direction of tree transpiration was put forward.
出处
《世界林业研究》
CSCD
北大核心
2009年第4期34-40,共7页
World Forestry Research
基金
国际科技合作课题(2006DFA01780)
林业公益性行业科研专项经费项目(200804022)
国家“十一五”科技支撑计划项目(2006BAD03A0201)
北京市科委重大项目(D0706001000091)
关键词
乔木蒸腾耗水
水分利用
研究尺度
热技术法
tree, water consumption from tree transpiration, water utilization, study scale, thermal technique