三峡大老岭地区森林群落的数量分类研究

A STUDY ON THE QUANTITATIVE CLASSIFICATION OF FOREST COMMUNITIES OF DALAOLING REGION AT THE THREE GORGES

在大量的群落样方调查基础上 ,利用二元指示种分类法 ( TWINSPAN)对三峡大老岭地区的森林群落进行数量分类 ,并据此划分该地区山地植被垂直带的高度范围 ,讨论了TWINSPAN方法的特点及其应用于结构复杂的亚热带森林时应依据的原则。最后 ,文章总结了大老岭地区的森林群落类型。

Based on survey of substantial community plots,a quantitative classification of the forest communities at Dalaoling region,the Three Gorges,is performed with TWINSPAN (Two Way Indicator Species Analysis) method.According to that,the height range of the vertical bands of vegetation at this region is divided;and the forest vegetation types of Dalao ling region are summarized.At last,the characteristics of TWINSPAN and the rules should be obeyed in application to the subtropical forest with complex structure are discussed.