文献类型：期刊文献

英文题名：Interspecies Association and Community Stability of Plants in the Core Distribution Area of Thuja sutchuenensis

作者：Wang, Xiangfu[1] Liu, Yong[1] Li, Yuanhui[1] Jin, Jiangqun[2] Guo, Quanshui[3] Pei, Shunxiang[4]

第一作者：Wang, Xiangfu

通信作者：Guo, QS[1];Pei, SX[2]

机构：[1]Northwest Surveying & Planning Inst Natl Forestry, Key Lab Natl Forestry & Grassland Adm Grassland Ad, Xian 710048, Peoples R China;[2]Chongqing Inst Med Plant Cultivat, Chongqing 408435, Peoples R China;[3]Chinese Acad Forestry, Ecol & Nat Conservat Inst, Key Lab Forest Ecol & Environm Natl Forestry & Gra, Beijing 100091, Peoples R China;[4]Chinese Acad Forestry, Expt Ctr Forestry North China, Beijing Jiulong Mt Natl Long Term Sci Res Base War, Beijing 102300, Peoples R China

年份：2023

卷号：14

期号：4

外文期刊名：FORESTS

收录：;EI(收录号：20231814051884);Scopus(收录号：2-s2.0-85156156034);WOS:【SCI-EXPANDED(收录号:WOS:000978296700001)】；

语种：英文

外文关键词：Thuja sutchuenensis; interspecific association; niche width; niche overlap; community stability

摘要：The protection of endangered species is a hot topic for scholars worldwide, and interspecific association and community stability analysis are important methods with which to explore the structure and function of the endangered species community. Thuja sutchuenensis Franch. is an endangered species; however, studies on the T. sutchuenensis community remain insufficient. Here, based on the data of the plot survey of the T. sutchuenensis community in the Ta-pa Mountains and Xuebao Mountains, we analyzed the interspecific associations, niche width, and niche overlap of major species in the arborous and shrub layers, as well as community stability. The results showed that the overall interspecies association between the species of the arbor layer was non-significantly negatively associated, while the shrub layer was non-significantly positively associated. The Chi-square test results showed that the species pairs without interspecific association in the arbor layer and the shrub layer were much higher than those with significant interspecific association; in other words, the interspecific association of species in the T. sutchuenensis community was loose. The results of interspecific association coefficient analysis showed that the number of negatively associated species pairs was significantly higher than that of positive association species pairs, but Pearson's correlation coefficient and Morisita's niche overlap index analysis showed that the degree of competition between species in the community was small. In the arbor layer, the niche width of T. sutchuenensis was the widest, while in the shrub layer, the niche width of T. sutchuenensis was relatively high, indicating that T. sutchuenensis had a strong ability to adapt to the environment and use available resources. In addition, the intersection point of community stability (32.11, 67.89) in the vegetative community of T. sutchuenensis suggested that the community displayed a better stability. The survival strategy of T. sutchuenensis is based on its strong adaptability to the harsh environment to escape the competition among species, and this knowledge can provide a reference for the protection and restoration of endangered species.