摘要
本文利用TWINSPAN和DCA对五台山南台旅游活动对山地草甸的影响进行了分析。结果表明:(1)TWINSPAN将5个样地划分为紫羊茅群落和北方嵩草群落,将17个种划分为4个生态种组;(2)在样地DCA排序的第一轴上,从右到左北方嵩草群落向紫羊茅群落逐步过渡退化。样地之间生态距离的差异也说明了草甸退化的过程;(3)4个生态种组在DCA排序图中都有自己的分布中心和分布区域,植物种的分布格局在很大程度上决定着草甸类型的分布格局。
The impact of tourism activities on subalpine meadow on the south top of Wutai Mountain was analyzed by TWINSPAN and DCA in the paper. It was showed that： （1） five samples were divided into Asso. Festuca rubra and Asso. Kobresia bellardii, and 17 species into four groups of ecological species. （2） From the right to the left, Asso. Kobresia bellardii degraded gradually to Asso. Festuca rubra on the first axis of DCA ordination for samples. （3） Four groups had their distributing center and area, and the distribution of species decided the meadow types.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2006年第5期125-127,共3页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金(30070140)
关键词
五台山
旅游活动
山地草甸
Wutai Mountain
tourism activities
subalpine meadow
