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对卫闽光皮桦群落的８个主要伴生树种进行了生态位宽度、生态位重叠度以及生态位分离度测定。结果表明，该群落中的优势树种其生态位宽度值均普遍较大，在理论上均可属于广生态位。优势种之间的竞争颇为激烈，如果不进行一定的人为措施，目前主要伴生树种之间这种暂时的资源共享、和平共存局面，将难以维持。
The dominant niche breadth, the degree of niche overlap and the niche resolution of eight main coniferous species of Betula luminifera community in Wei-Min were determined. The results showed that the niche breadth values of the dominant tree species in this community were generally large, which could theoretically belong to the broad niche. The competition among the dominant species is quite fierce. Without some man-made measures, the temporary sharing of resources and peaceful coexistence among the major associated tree species will be difficult to maintain.