中国常绿阔叶林壳斗科主要种的分布与气候

Climate and Geographical Distribution of Dominants and Companions of Fagaceae for Broadleaved Forest in China

Holdridge的生命地带分类系统由于其指标的计算十分简便，且与植被的对应性高而受到生态学与地理学工作者的重视和广泛采用。利用该系统的指标－生物温度BT、降水量P及可能蒸散率PER分析了组成中国亚热带常绿阔叶林的主要科属成分壳斗科栲属、石栎属、青冈属及栎属的38个优势种及常见种分布与气候的关系，所得计算结果较好。利用生物温度和可能蒸散率，可将优势种及常见种划分为5个水热分布类群，与实际对应较好。并计算了优势种及常见种分布的生物温度全范围和最适范围。证明Holdridge生命地带分类系统指标适应于研究中国亚热带常绿阔叶林与气候的关系。

Holdridge's life zone classification system has been devoted much attention and applied widely by ecological and geographical researchers owing to its simple and convenient forcalculation and better correspondence with vegetation types. Using its indexes of annualbiotemperature (BT), annual precipitation (P), and potential evapotranspiration ratio (PER),we analysed the relationship between the distribution of 38 dominants and companions ofFagaceae and climate for subtropical evergreen broadleaved forest in China. The results are better. According to annual biotemperature and potential evapotranspiration ratio, the five groupsof water-temperature distribution of dominants and companions had been divided. The wholerange and optimal range of BT for tree species had been calculated. The Holdridge life zone classification system indexes can be used in studies on the relationship between subtropical evergreen broadleaved forest and climate in China.