滇中桉树人工林群落比较分析

Camparative Analysis of Eucalyptus plantations in Central Yunnan Province

本文就滇中桉树人工林纯林、桉树混交林及其它种类的人工林调查材料,对不同林种的群落进行比较,从比较结果中分析桉树人工林生物多样性问题。通过比较分析发现:1、桉树本身的排它现象并不显著;2、桉树林下和松林的林下植物的丰富度相差不多;3、多种桉树混交较单一桉树纯林的林下植物丰富。

In recent years, some comparative studies have been made of the biodiversity of Eucalyptus plantations in central Yunnan Province. The results have shown that （ 1 ） antibiotic exclusive effects of Eucalyptus are not so obvious as usually thought; （2） The species abundance under Eucalyptus plantations is almost the same as that under native secondary pine forests in the area; and （3） plants in mixed plantations of many Eucalyptus species are more plentiful than those in the pure plantation of inolividual Eucalyptus species.