热带亚热带植物学报2024，Vol.32Issue(5)：601-610,10.DOI:10.11926/jtsb.4815
木林子国家级自然保护区天然林群落优势木本植物种间联结和稳定性
Interspecific Associations and Community Stability Changes of Dominant Woody Species of Natural Forest Communities in Mulinzi National Nature Reserve
摘要
Abstract
In order to explore the changes of natural forest community structure in the national nature reserve,fourty-five 20 m×20 m plots were set up in three restoration stages,including original old forest(restored for 100 years or more),secondary forest restored for 40 and 25 years after clear-cutting.The interspecific association and community stability of dominant woody plants were studied by using Variance ratio(VR),χ2 test,Pearson correlation test,Spearman rank correlation test and M-Godron stability test.The results showed that there was no significant positive association on the whole of dominant woody species in secondary forest restored for 25 and 40 years,but the significant positive association appeared in original aged forest restored for 100 years.The χ2 test showed that the interspecific associations were not significant in 25 and 40 years plant communities,and only 2 species pairs in 100 years plant communities were significantly associated,and the interspecific associations were loose.The Pearson's correlation coefficient test and Spearman's rank correlation coefficient test also showed that the correlations among species pairs of most species were not significant,and displayed an independent distribution pattern.The M-Godron stability analysis showed that the plant community was in an unstable state at different stages,but the stability of the community gradually increased with restoration time.Therefore,interspecific correlation in the natural forest communities was weak at different restoration stages,and the species distributed independently and changed frequently,indicating that the community was still in the process of succession and was developing towards a stable stage.关键词
植物群落/种间联结/群落稳定性/木林子Key words
Plant community/Interspecies association/Community stability/Mulinzi引用本文复制引用
陈锦世,郭秋菊,姚兰,朱江,刘西尧,向钦,赵奂敦,艾训儒..木林子国家级自然保护区天然林群落优势木本植物种间联结和稳定性[J].热带亚热带植物学报,2024,32(5):601-610,10.基金项目
湖北省教育厅科学研究项目(Q20221903) （Q20221903）
生物资源保护与利用湖北省重点实验室开放基金项目(PT012006) （PT012006）
湖北民族大学高水平科研成果校内培育项目(4205022)资助This work was supported by the Project for Scientific Research of Education Department in Hubei(Grant No.Q20221903),the Open Project of Key Laboratory of Biologic Resources Protection and Utilization of Hubei(Grant No.PT012006),and the Project for High-level Scientific Research Achievements On-campus Cultivation of Hubei Minzu University(Grant No.4205022). （4205022）
