【摘要】 作为典型的北方缺水河流,妫水河生境脆弱,特别是城区段受人为干扰强烈,水生植物群落退化严重。通过开展妫水河水生植物群落实地调查和水质监测,摸清不同河段水生植物群落分布与水质之间的响应关系,有利于区域水生植物群落的重新构建。妫水河现有水生植物12科12属14种,其中,挺水植物6种(42.9%),沉水植物6种(42.9%),浮叶植物1种(7.1%),漂浮植物1种(7.1%)。不同河段水生植物群落结构存在显著差异,在水质较好的山区型河段(古城河和妫水河干流龙顺路附近)主要分布有以沉水植物为主的菹草+水毛茛+金鱼藻群落和浮萍﹣金鱼藻群落;在水质较差的城区型河段(三里河)主要分布有耐污性较强的香蒲+菖蒲群落、菰+芦苇+水芹﹣菹草群落;在缓坡型河段(蔡家河和妫水河干环湖南路附近)分布有以挺水植物为主的芦苇+香蒲﹣狸藻﹣荇菜群落和菰+香蒲﹣眼子菜群落。以群落分布规律为依据,可为妫水河生态修复提供思路和设计参考。更多还原

【Abstract】 As a typical water-deficient river in Northern China,the habitat of Guishui River is fragile, especially in the urban reach. Human activities can disturb the ecological habitat and thus the aquatic plant community seriously degenerates. Through field investigation and water quality monitoring of aquatic plant community in the Guishui River, the response relationship between the distribution of aquatic vegetation and water quality in different river reaches can be clarified, which is conducive to the reconstruction of regional aquatic plant community. There are 14 species of aquatic plants from 12 genera out of 12 families in Guishui River. Among them, 6 species(42.9%) are emergent aquatic plants(42.9%) and submerged plants(42.9%) both have 6 species,and floating-leaved plants(7.1%) and floating plants(7.1%) each have 1 specie. The structure of aquatic plant community differs in different river reaches. In the mountainous reach with fine water quality(the main steam of Gucheng River and Guishui River near Longshun Road), communityPotamogeton crispus L+Batrachium bungei+Ceratophyllum demersum and Community Lemna minor﹣Ceratophyllum demersum are mainly distributed dominated by submerged plants are dominant mostly including; in the urban section(Sanli River) with poor water quality, the Community Typha orientalis Presl-Acorus calamus L and Community Zizania latifolia Stapt+Phragmites australis Trin. ex Steud+Oenanthe javanica DC﹣Potamogeton crispus L. are mainly distributed as they can resist pollutants; in the gentle slope section(the main stream of Caijia River and Guishui River near Huanhunan Road), emergent aquatic plants are dominant constituted by Community Phragmites australis Trin. ex Steud + Typha orientalis Presl﹣Utricularia Vulgaris L.﹣Nymphoides peltatum O.Kuntze and Community Zizania latifolia Stapt+ Typha orientalis Presl﹣Potamogeton distinctus A.Benn.. This community distribution can provide ideas and design references for ecological restoration in Guishui River.更多还原