广西科学2024，Vol.31Issue(6)：1101-1111,11.DOI:10.13656/j.cnki.gxkx.20241209.002
桂林市环城水系不同生境自生植物物种组成及多样性研究
Composition and Diversity of Spontaneous Plant Species in Dif-ferent Habitats of the Water System around Guilin City
摘要
Abstract
Exploring the composition and characteristics of spontaneous plants at the family,genus,and species levels in different habitats and comparing the diversity of spontaneous plants in different sampling sections and habitat types can provide suggestions for creating a near-natural riverbank landscape with a low-cost and low maintenance in the water system around Guilin City.The habitats of the water system were classified in-to hard shores,semi-natural gentle slope shores,waterside wasteland,flood plains,and natural green areas based on natural attributes and human factors.The typical plot method was employed to study the species,composition,and diversity of spontaneous plants in different habitats.The results showed that a total of 197 native plant species were recorded in the water system,belonging to 152 genera of 78 families,which were mainly dominated by Asteraceae,Poaceae,and Fabaceae.In addition,25 invasive alien species were identified,accounting for 13％.The plants showed rich life forms,in which perennial herbaceous plants were the ric-hest,with 51 species accounting for 26％.The spontaneous plant diversity in the Lijiang River section was higher than that in other sections.The composition and diversity of spontaneous plants differed significantly among different habitat types,with the highest richness in natural green areas.Natural green areas and water-side wasteland showed higher Patrick richness index,while the areas with frequent human activities and large environmental changes such as hard shores and flood plains had fewer species,which indicated that maintai-ning sufficient understory space and reducing human intervention were key factors for improving and maintai-ning species diversity.Overall,the composition and diversity of spontaneous plants differed significantly a-mong different habitat types,with the highest richness in natural green areas and the highest diversity in the Lijiang River section.Therefore,reducing human interference and preserving understory space are of great significance for creating near natural riverbank landscapes and enhancing ecosystem stability.关键词
环城水系/自生植物/植物多样性/桂林市Key words
water system around the city/spontaneous plants/plant diversity/Guilin City分类
农业科技引用本文复制引用
卢家锋,康秀琴,孟皓轩..桂林市环城水系不同生境自生植物物种组成及多样性研究[J].广西科学,2024,31(6):1101-1111,11.基金项目
国家自然科学基金项目(32260417)和广西重点研发计划项目(桂科AB22080057,AB23026053)资助. （32260417）
