生态环境学报Issue(11)：1749-1756,8.
若尔盖高寒沼泽植物群落与环境因子的关系
Relationships between main plant communities and environment in Zoige marsh
摘要
Abstract
This study focuses on relationships between community diversity and environmental factors as well as the classification of the Zoige marsh. Vegetation quadrat data, soil physiochemical properties data, and water table data were collected at 32 sites on the Zoige marsh during July and August in 2011-2012. The plant species composition and the plant diversity differences among different surface water conditions, as well as the relationship between plant communities and environmental factors in Zoige marsh were studied by using analysis of variance, canonical correspondence analysis (CCA), and correlation analysis. A total of 151 plant species in Zoige marsh belonging to 39 families and 98 genera were identified. Diversity indexes increased basically as the surface water declined. Based on the CCA results, the first two axes explained 79.8%of the variance within the species-environment relationships, and the community distribution was influenced greatly by moisture content and soil nutrient condition, followed by habitat patches and rodent activity. Correlation analysis shows species Richness index and Shannon-Wiener index were in significantly negative correlation with soil water content (SWC), soil organic carbon (SOC), total nitrogen (TN), and surface water level (WT), but were in significantly positive correlation with soil bulk density. Environmental factors are important determinants of the distribution of native plant species in Zoige marsh.关键词
物种多样性/高寒湿地/典范对应分析(CCA)/地表积水状况/土壤养分Key words
species diversity/alpine wetland/canonical correspondence analysis (CCA)/surface water regime/soil nutrient condition分类
农业科技引用本文复制引用
崔丽娟,马琼芳,郝云庆,高常军,宋洪涛,王义飞,李伟..若尔盖高寒沼泽植物群落与环境因子的关系[J].生态环境学报,2013,(11):1749-1756,8.基金项目
林业公益性行业科研专项（201204201）；林业公益性行业科研专项 （）
