生态学杂志2024，Vol.43Issue(7)：2083-2092,10.DOI:10.13292/j.1000-4890.202407.013
山西黎城野生萱草群落特征及稳定性
Characteristics and stability of wild Hemerocalli community in the Licheng County of Shanxi Province
摘要
Abstract
We investigated the composition and diversity of wild Hemerocallis community in the Licheng County of Shanxi Province,and analyzed community characteristics and stability using TWINSPAN classification and DCA ordination,α and β species diversity,and Godron community stability.The results showed that:(1)72 quadrats of wild Hemerocallis communities could be divided into 12 associations and two groups by TWINSPAN classification.(2)The first and second DCA axes of the 72 quadrats respectively represented the changes of dominant species and diversity in different wild Hemerocallis associations.Along the first axis of DCA from left to right,the co-dominant species gradually changed from the associations Ⅷ-Ⅺ dominated by H.esculenta to the associations of Ⅰ-Ⅶ andⅫ dominated by H.citrine.Along the second axis from top to bottom,species diversity of the associations gradually decreased.The change tendency of DCA ordination of 72 plant species was basically consistent with that of the DCA ordination of quadrats.(3)Shannon diversity index,Simpson diversity index,Patrick richness index,and Margalef richness index of the 12 associations were significantly different,but with similar changing trends.The change tend-ency of Sørensen similarity coefficient was basically consistent with that of the Jaccard similarity coefficient,but the species compositions and habitats of 12 associations were different to some extent.(4)The 12 associations were unstable and the relationship between species diversity and association stability was inconsistent.In summary,wild Hemerocallis community in the Licheng County was unstable,which was highly affected by habitat conditions and human disturbances(such as tourism and grazing).Therefore,scientific protection of wild Hemerocallis germplasm resources in this region should be strengthened in the future.关键词
野生萱草群落/分类与排序/物种多样性/群落稳定性Key words
wild Hemerocallis community/classification and ordination/species diversity/community stability引用本文复制引用
李志娟,李素清..山西黎城野生萱草群落特征及稳定性[J].生态学杂志,2024,43(7):2083-2092,10.基金项目
国家自然科学青年科技基金项目(32002085)、山西农业大学博士科研启动项目(2021BQ55)和山西农业大学双一流园艺学科建设项目(23142N02070002)资助. （32002085）
