摘要
植物群落的多样性研究是研究了解植物群落在组成、结构、功能和动态方面所表现出的不同差异,因此是群落生态学研究中十分重要的内容.对湖南双牌打鼓坪林场位于山坡和山谷的常绿阔叶林群落乔木层树种的多样性指数沿海拔梯度的变化进行了对比调查.结果表明:群落内有乔木树种67种,隶属35科55属;山谷地带常绿阔叶林群落多样性指数普遍高于山坡地带,说明一定程度的人为干扰会增加物种多样性,而高海拔地带的常绿阔叶林群落多样性指数有所增加,说明演替进入一定阶段,乔木层物种相对稳定.
An investigation was conducted over the change of species diversity in the tree layer of evergreen broad-leaved forests along the altitudegradient at different terrains （hillside and valley） of Daguping Forest Farm, Shuangpai County, Hunan Province. 67 arboreal plants belonging to 35 families, 55 genuses, were observed. The Species diversity in the valley is higher than that in the hillside. This indicates that the species diversity will be increased by mid-degree human disturbance. The increase of species diversity in the tree layer of evergreen broad-leaved forests along the high-altitude gradient indicates that the species of tree layer keep relatively stable in the specified stage of community succession.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2008年第2期45-49,共5页
Journal of Central South University of Forestry & Technology
关键词
植物学
常绿阔叶林
植物群落
物种多样性
湖南双牌打鼓坪林场
botany
evergreen broad-leaved forests
plant community
species diversity
Hunan Province
Daguping Forest Farm
