莽山浪畔湖国家重要湿地植物多样性及环境解释  

Plant diversity and environmental interpretation of Mang Shan Lang Pan Lake national important wetland

作　　者：李阳 罗健夫[4] 侯志勇 谢永宏[1] 陈薇[1,3] 黄鑫 曾静 于晓英[2] LI Yang;LUO Jianfu;HOU Zhiyong;XIE Yonghong;CHEN Wei;HUANG Xin;ZENG Jing;YU Xiaoying(Key Laboratory of Agro-ecological Processes in Subtropical Region,the Chinese Academy of Sciences,Dongting Lake Station for Wetland Ecosystem Research,Institute of Subtropical Agriculture,the Chinese Academy of Sciences,Changsha 410125,China;College of Horticulture,Hunan Agricultural University,Changsha 410128,China;College of Landscape Architecture and Art Design,Hunan Agricultural University,Changsha 410128,China;Yiyang Forestry Bureau,Yiyang 413000,China)

机构地区：[1]中国科学院亚热带农业生态研究所,农业生态过程重点实验室,中国科学院洞庭湖湿地生态系统观测研究站,长沙410125 [2]湖南农业大学园艺学院,长沙410128 [3]湖南农业大学风景园林与艺术设计学院,长沙410128 [4]益阳市林业局,益阳413000

出　　处：《生态学报》2024年第12期5340-5350,共11页Acta Ecologica Sinica

基　　金：国家自然科学基金项目(41601106);湖南省科技创新平台计划(2022PT1010);国家科技基础资源调查专项(2019FY100600);自然资源部洞庭湖流域生态保护修复工程技术创新中心开放课题基金(2023011)。

摘　　要：研究莽山高山湖泊湿地植物多样性对环境因子的响应分析,不仅有助于深入了解湿地植物对环境变化下的适应策略,同时对保护当地湿地珍稀濒危物种具有重要价值。采用系统聚类分析、典范对应分析(CCA)和Pearson相关性分析等方法,对研究区30个植物群落样方进行分析,研究植物多样性与环境因子(土壤、水)之间的相互关系。研究结果表明:浪畔湖国家重要湿地植物群落可分为蕨状苔草+宽叶泽苔草群丛、雪白睡莲+莼菜群丛、水毛花+宽叶泽苔草群丛、莼菜+宽叶泽苔草群丛等4类。雪白睡莲+莼菜群丛Patrick丰富度指数和Pielou均匀度指数最低,Simpson多样性指数最高,水毛花+宽叶泽苔草群丛与之相反。浪畔湖国家重要湿地植物多样性与土壤速效钾和水深呈极显著相关性,与水质氨氮呈显著相关性,水深和土壤速效钾是影响湿地植物群落分布格局的主要因子。群落物种多样性指数与环境因子之间存在显著相关性,群落物种丰富度指数随水深增加呈先增后降的趋势,群落物种均匀度指数与水质氨氮浓度之间呈负相关关系。本研究旨在揭示浪畔湖国家重要湿地植物多样性与环境因子之间的生态关系,为保护湿地珍稀物种及维持湿地生态系统稳定提供理论依据。This study investigates the response of plant diversity in the high-altitude lakeside wetlands of Mang Shan to environmental factors.It not only helps in understanding the adaptive strategies of wetland plant communities to environmental changes but also holds significant value for the protection of local rare and endangered wetland species.In this study,methods such as Hierarchical cluster analysis,Canonical Correspondence Analysis(CCA),and Pearson correlation analysis were used to analyze 30 plant community plots in the study area,exploring the relationships between plant community diversity and environmental factors(soil and water).The results indicated that the plant communities in the Lang Pan Lake national important wetland were categorized into four groups:Ass.Carex filicina+Caldesia grandis,Ass.NympHaea tetragona+Brasenia schreberi,Ass.Caldesia grandis+Scirpus triangulatus,and Ass.Brasenia schreberi+Caldesia grandis.Among these groups,Ass.Brasenia schreberi+Caldesia grandis exhibited the lowest Patrick′s richness index and Pielou′s evenness index,while had the highest Simpson′s diversity index,with the Ass.Caldesia grandis+Scirpus triangulatus showing the opposite trend.The diversity of wetland plant was significantly correlated with soil exchangeable potassium and water depth and also significantly correlated with water quality ammonia nitrogen.Water depth and soil exchangeable potassium are identified as the primary factors influencing the distribution pattern of wetland plant communities.A significant correlation between community diversity indices and environmental factors,the species richness index of the community exhibited an initial increase followed by a decrease with increasing water depth,while the species evenness index showed a negative correlation with water quality ammonia nitrogen concentration.The study aims to uncover the ecological relationship between plant community species diversity and environmental factors in the Lang Pan Lake national important wetland,providing a theoretica

关 键 词：高山湿地 群落多样性 环境因子 系统聚类 典范对应分析(CCA) Pearson相关性分析 

分 类 号：Q948[生物学—植物学] X171.1[环境科学与工程—环境科学]