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调查了内蒙北部红花尔基夏季鸟类群落,一共记录了28种鸟类。在每个实验地取5个10m×10m的样方进行植被调查。利用线性回归方程来确定植被郁闭度和鸟类数量和鸟类密度的关系。分析结果显示鸟类数量和鸟类密度的变化及鸟类群落的形成是随着森林类型和总植物量而变化。鸟类数量和密度都随总植物量的降低而减少。鸟类群落的相似性在繁殖时期非常低,在同一分类簇中,最大相似性不超过0.65。这表明鸟类群落间种类的构成存在着显著差异。鸟类的繁殖密度与森林的生长阶段具有密切的关系,一般情况下,从稀疏的草原生态系统到顶级生态系统鸟类的密度呈现逐渐增加的趋势。图3表4参21。
A survey was conducted on the summer bird population of Honghuaerji in northern Inner Mongolia, recording a total of 28 species of birds. In each experiment to take five 10m × 10m quadrats vegetation survey. The linear regression equation was used to determine the relationship between canopy density and bird density and bird density. The results of the analysis show that the number of birds and the change in bird density and the formation of bird communities vary with the type of forest and the total number of plants. The number and density of birds decreased with the total amount of plants. The similarity of bird communities is very low during the breeding season, and the maximum similarity in the same taxon does not exceed 0.65. This indicates that there are significant differences in the composition of bird species. The breeding density of birds is closely related to the growth stage of the forest. Generally speaking, the density of birds from the sparse grassland ecosystem to the top ecosystem shows a gradual increase. Figure 3 Table 4 Reference 21.