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对星斗山珙桐群落中珙桐种群及其６个主要伴生树种进行了生态位宽度和生态位重叠的测定和分析。结果表明，该群落主要优势树种的生态位较宽，珙桐与其伴生树种的生态位重叠值较大，但在环境条件不发生较大变化的情况下，该群落是较为稳定的群落。
The spatial distribution and niche overlap of Davidia involucrata populations and their six major associated species in the community of Davidia involucrata were studied. The results showed that the niche of dominant tree species in this community was wide, and the niche overlap of Davidia involucrate and its associated tree species was larger. However, the community was relatively stable under the condition of no significant environmental changes.