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运用混交度、大小比数及角尺度3个林分空间结构参数对闽北天然闽粤栲种群的空间结构进行分析.结果表明:该种群的林分平均角尺度为0.606,林木的水平分布格局为聚集分布;林分大小比数平均值为0.494,各树种大小分化程度存在很大差异,闽粤栲、酸枣、拟赤杨、重阳木、麻栎、榕叶冬青及白花泡桐在胸径上具有优势,鹿角栲、皱叶荚蓬、天仙果及石楠处于劣势;林分平均混交度为0.640,树种的空间隔离程度较大,已形成由不同树种组成的呈较高混交状态的复杂群落.该林分空间结构特征与其所处生境、演替阶段、干扰和各树种生长状况、生物学特性、林分地位等有关.
Spatial structure of the population of natural Mintyanchus angustifolia in northern Fujian was analyzed by means of the spatial structure parameters of mixed forest, size fraction and angular dimension.The results showed that the average angular dimension of the forest was 0.606, the horizontal distribution pattern of forest The average size of the ratio of stand size was 0.494, there was a great difference in the degree of differentiation of each tree species. Advantages, Anthera kona, Curcuma longissima, Celastrus angustifolia, and heather were at a disadvantage. The average degree of mixed stands was 0.640, and the tree species had a large degree of spatial segregation, forming a complex community with high mixed status among different tree species. The spatial structure of the forest stands in relation to its habitat, succession stage, disturbance and the growth status, biological characteristics and stand status of the tree species.