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为了确定乌鲁木齐南部山区森林生态系统地面生地衣对资源的利用特征,采用Levins的生态位宽度计算公式和王刚提出的生态位重叠值公式,对该地区地面生地衣生态位宽度和生态位重叠进行了研究。同时以地面生地衣生态位重叠值为指标应用主分量分析法,对地衣群落进行了分类。研究结果显示:该地区发现地面生地衣共17种,大部分的地面生地衣生态位宽度比较窄。它们组成四种主要的地面生地衣类群。地衣植物对环境的变化特别敏感。应该重视地面生地衣植物在多资源维上的生态位重叠值和生态位宽度,以便更好的保护地衣物种多样性和揭示它们的生态适应特点。
In order to determine the resource utilization characteristics of ground-based lichen in mountainous forest ecosystems in southern mountainous area of Urumqi, the ecological niche breadth and niche overlap of ground-derived lichens were studied by using Levins niche breadth formula and Wang Gang’s formula of niche overlap value the study. At the same time, the lichen community was classified by the principal component analysis method using the overlap value of niche of niche in the ground. The results show that there are 17 species of ground-covered lichens in the area, most of which have narrower niche breadths. They form the four main groups of ground lichen. Lichens are particularly sensitive to environmental changes. The niche overlaps and niche breadths of ground-derived lichen plants in multi-dimensional dimensions should be emphasized in order to better protect the lichen species diversity and reveal their ecological adaptability.