摘要
根据中国亚热带常绿阔叶林区域的气象资料和植物分布资料，计算了组成中国亚热带常绿阔叶林１４个主要科１１２个优势种及常见种的Ｐｅｎｍａｎ可能蒸散（ＰＥ）值和干燥度（Ａ）值，按气候指标的分布范围将优势种和常见种划分为５个水热分布类群，分别为：Ｇ１低温湿润型，Ｇ２低温半湿润型，Ｇ３中温湿润型，Ｇ４中温半湿润型，Ｇ５高温湿润型，并分析其生态气候特征，所得结果较好表现了中国亚热带常绿阔叶林主要树种沿水热梯度的分布格局。虽然Ｐｅｎｍａｎ指标的计算比较复杂，但因其坚实的物理学基础而应用较广，对常绿阔叶林树种与气候关系的研究有一定的参考价值。
Based on the materials of plant geographical distribution and records of 342 meteorological stations, Penman's potential evapotranspiration (PE) and aridity (A) of dominants and main companions of the subtropical evergreen broadleaved forest in China have been calculated. The groups of Penman's watertemperature have been classified into five types. They are G1 (microthermal humid type), G2 (microthermal semihumid type), G3 (mesothermal humid type), G4 (mesothermal semihumid type),and G5 (megathermal humid type). The ecoclimatic characteristics of these groups have been analyzed from which the results indicated a rather good setup of the distribution of tree species along with the water and thermal gradients. The calculation of Penman's indices is relatively more complicated, but has been very widely used because of its reasonable and substantial physical basis. Penman's indices are validated for studies of the relationship between tree species and climate of evergreen broadleaved forest in China.
关键词
常绿阔叶林
可能蒸散
干燥度
水热分布类群
树种
Evergreen broadleaved forest, Dominants and companions, Penman's potential evapotranspiration, Aridity, Watertemperature groups
