Song Aiyun, Liu Shirong, Shi Zuomin, Dong Linshui
Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing.
Ying Yong Sheng Tai Xue Bao. 2006 Jul;17(7):1174-8.
Based on the field investigation of 114 sampling plots at Balong Mountain in Wolong Nature Reserve, this paper studied the plant species composition and community structure of subalpine meadow communities. Two-way indicator species analysis and detrended correspondence analysis were employed to classify and ordinate the subalpine meadow communities in these sampling plots, aimed to understand the key factors determining the structure and distribution pattern of subalpine meadow communities. Through TWINSPAN analysis, the subalpine meadow was classified into 12 types. DCA ordination gave the ecological significance of ordination axes. Axis 1 indicated the altitude the meadow distributed, while axis 2 indicated the soil humidity of the distribution site. The ordination of dominant species was similar to the classification of community types, reflecting the change trend of community type and species distribution with changing environmental factors.
基于对卧龙自然保护区巴朗山114个样地的野外调查，本文研究了亚高山草甸群落的植物种类组成和群落结构。采用双向指示种分析和去趋势对应分析对这些样地的亚高山草甸群落进行分类和排序，旨在了解决定亚高山草甸群落结构和分布格局的关键因素。通过TWINSPAN分析，亚高山草甸被划分为12种类型。DCA排序给出了排序轴的生态意义。轴1表示草甸分布的海拔高度，而轴2表示分布地点的土壤湿度。优势种的排序与群落类型的分类相似，反映了群落类型和物种分布随环境因素变化的趋势。
