【摘要】 河口湿地是水陆相互作用形成的独特生态系统,也是湖泊生态系统的重要组成部分。为探讨河口湿地植被在不同时期内种类和组成的变化,以及引起这些变化的主要环境因子,文章以巢湖十五里河河口湿地为对象,在巢湖处于枯水期和丰水期时,分别对其植物群落进行了野外调研,研究发现:枯水期河口湿地分布植物有21种,隶属于18属,11科;丰水期河口湿地分布植物11种,隶属于10属,7科;聚类分析结果显示枯水期时河口湿地植物组合类型有8种,丰水期时河口湿地植物组合类型为4种;枯水期时河口湿地植物物种多样性比丰水期时高,但其均匀度比丰水期时低;湖泊水位、河口水质和人类活动是河口湿地植物种类和组成变化的主要影响因子。更多还原

【Abstract】 The estuary wetland is a unique ecosystem that forms a transition zone between aquatic and terrestrial environment,and it is also an important component of the lake ecosystem.Aiming at proving up the relation between the change of wetland plants and the water level and quality in the estuary of Shiwuli River,field investigation is made into the plant community of this area in the low-water season and the high-water season.The results show that there are 21 species grouped into 18 generas and 11 families in the low-water period,otherwise there are 11 species grouped into 10 generas and 7 families in the high-water period.Clustering analysis indicates that there are 8 plant assemblages in the low-water period and 4 plant assemblages in the high-water period.The plant diversity index in the low-water period is higher than that in the high-water period,but the plant evenness index in the low-water period is lower than that in the high-water period.The lake level,water quality and human activity are the main factors that cause the plant diversity changes in the estuary wetland of Shiwuli River.更多还原