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1990～1991年5～6月,在沾河林业局和通北林业局采用路线调查法对夏季森林鸟类群落的空间集团结构进行了研究。结果表明,灌丛鸟类群落由3个栖息集团构成,针叶林、阔叶林和针阔混交林鸟类群落分别由7个栖息集团构成。灌丛鸟类群落的地面栖息集团的种类远较其它3个林型中鸟类群落的丰富。针叶林鸟类群落的中上层栖息集团的种类较丰富,而阔叶林和针阔混交林鸟类群落的中下层栖息集团的种类较丰富。相同栖息集团的种类组成在不同林型中存在一定变化。
From 1990 to 1991, from May to June, the spatial cluster structure of summer forest bird community was studied by using route survey method in Zhanhe Forestry Bureau and Tongbei Forestry Bureau. The results showed that the shrub community consisted of three habitats, and the coniferous forest, broad-leaved forest and coniferous-broad leaved forest were each composed of seven habitats. The species of ground perch groups in the shrubbery community are far more abundant than the bird communities in the other three forest types. The coniferous forest bird community has more species in the middle and upper habitat groups, while the species in the lower and middle habitats of broad-leaved and coniferous-mixed forest bird communities are abundant. The species composition of the same habitats varied in different forest types.