Liu Yi-Peng, Ye Xing-Zhuang, Ye Li-Qi, Chen Xu-Hui, Zheng Shi-Qun, Chen Shi-Pin, Zhang Guo-Fang, Liu Bao
College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Ying Yong Sheng Tai Xue Bao. 2022 Oct;33(10):2670-2678. doi: 10.13287/j.1001-9332.202210.007.
In order to understand the interspecific and ecological relationships of (extremely small population) community and strengthen the protection of wild resources in Junzifeng Nature Reserve, we studied the niche characteristics and interspecific associations of dominant tree species. The results showed that , , , and had obvious niche breadth advantages, which were the constructive species of the community. Among the 190 groups of species pairs among the 20 dominant tree species, 50.5% of species pairs had niche overlap value greater than 0.5. The degree of ecological niche differentiation among species was general. had large niche overlap with other 19 species, indicating a competitive risk when resources were insufficient. The overall associations of dominant tree species were significantly positive, indicating the community was at the late stage of relatively stable succession. The results of test, asso-ciation coefficient, and Pearson correlation coefficient showed that all the significance ratios of interspecific association were lower, and that the independence among species was relatively strong. There was a positive correlation between interspecific association and niche overlap. The community was relatively mature, with full utilization of resources and stable interspecific relationship. To promote the rejuvenation and create a good habitat of population, the population size with large overlap with niche and significant negative association could be appropriately limited, while that with positive interaction could be increased.
为了解极小种群群落的种间关系和生态关系，加强对军子峰自然保护区野生资源的保护，我们对优势树种的生态位特征和种间关联进行了研究。结果表明，[树种名称1]、[树种名称2]、[树种名称3]和[树种名称4]具有明显的生态位宽度优势，是群落的建群种。在20个优势树种的190个种对中，50.5%的种对生态位重叠值大于0.5。物种间的生态位分化程度一般。[树种名称5]与其他19个物种的生态位重叠较大，表明在资源不足时存在竞争风险。优势树种的总体关联性显著为正，表明群落处于相对稳定演替的后期。检验结果、关联系数和皮尔逊相关系数表明，种间关联的所有显著性比率较低，物种间的独立性相对较强。种间关联与生态位重叠呈正相关。[群落名称]群落相对成熟，资源利用充分，种间关系稳定。为促进[种群名称]种群复壮并营造良好的栖息地，可适当限制与[树种名称5]生态位重叠大且呈显著负关联的种群规模，而增加正相互作用的种群规模。
