北京山区油松林蒸腾耗水特性研究  

Characteristics of transpiring water-consumption of Pinus tabulaeformis forests in the mountainous area of Beijing.

作　　者：林平[1] 李吉跃[1] 马达[1] 

机构地区：[1]北京林业大学资源与环境学院省部共建森林培育与保护教育部重点实验室

出　　处：《北京林业大学学报》2006年第S1期47-50,共4页Journal of Beijing Forestry University

基　　金："863"国家高新技术项目(2002AA2Z4281);国家自然科学基金资助项目(30070637);北京林业大学省部共建森林培育与保护教育部重点实验室"北京城市绿地水分经济生态的研究"项目(JD100220535).

摘　　要：利用热扩散探针配合自动气象站,于2005年在北京林业大学妙峰山试验林场对油松水分运移规律进行研究.结果表明,油松树干液流速率呈明显的季节性变化规律,且与土壤含水量和当月降雨量有很好的相关性,相关系数为0.956;树干液流速率月平均值在1份有最低值,为0.00019m/s,最高值出现在6月份,为0.0006cm/s,是1月份的3.2倍;油松的连日变化规律在各个时期都呈明显的峰状曲线,只是土壤水分充足时期的液流速率值比干旱时期的要高一些,气象因子是影响油松树干液流日进程的主要因子.In 2005,TDP(Thermal Dissipation Sapwood Flow Velocity Probe)and Auto-meteorological Station were applied to study the rules of sap flow fluctuation of Pinus tabulaeformis in Miaofengshan Forest Research Station of Beijing Forestry University. The results were showed as the followings: firstly, sap flow velocity of P. tabulaeformis changed obviously by season and it showed strong relativity to the soil water content and rainfall, and the coefficient was 0.956. The lowest average sap flow velocity in 2005 app...

关 键 词：液流速率 土壤含水量 气象因子 油松 

分 类 号：S791.254[农业科学—林木遗传育种]