湖泊科学Issue(3)：421-428,8.
太湖贡湖湾水生植被分布现状（2012年）∗
The distribution of aquatic vegetation in Gonghu Bay, Lake Taihu, 2012
摘要
Abstract
Gonghu Bay is an important drinking water resource area for Wuxi City and Suzhou City. With the rapid deterioration of water quality, cyanobacteria bloom has become progressively worse, which might endanger human healthy through water utilization. In order to provide a theoretical basis for managing water resources of Gonghu Bay, an aquatic vegetation survey was undertaken. Eight transects were set, and boat-based survey was performed. The results indicated:1) There were 34 species, belonging to 27 genus and 20 families, distributed in Gonghu Bay. Monocotyledons and submerged plants were the dominant taxa and ecotypes, re-spectively. 2) Grass-dominated state and algal-dominated state were coexisted in Gonghu Bay, as the results of the percentage of aquatic vegetation distribution area to total area was 45. 35%, while the percentage of bare water area to total area was 54. 65%. 3) The aquatic vegetation in Gonghu Bay could be divided into 8 community types, and the Potamogeton malaianus community was the biggest in terms of distribution area and biomass. 4) Overall, the distribution pattern of aquatic vegetation in Gonghu Bay illustrated that north area was associated with bare water, east area was dominated by macrophytes, and other areas were taken by macrophytes with low coverage and biomass. The distributions of aquatic macrophytes in Gonghu Bay might have responded to the deterioration of water quality and fishing practice by trap nets. Furthermore, we also speculated that over-excavated dredging wasthe reason that aquatic macrophytes disappeared in north area. The current research suggested that, in order to improve the vegeta-tion growth, aquatic vegetation restoration projects should be carried out in the north and the bay mouth of Gonghu Bay. Mean-while, water quality monitoring of Yangtze River-Lake Taihu water transfer project should be further strengthened. What’s more, invasive plants, especially Cabomba caroliniana, should be effectively monitored.关键词
太湖/贡湖湾/水生植被/植被调查/水资源管理Key words
Lake Taihu/Gonghu Bay/aquatic vegetation/vegetation survey/water resources management引用本文复制引用
赵凯,李振国,魏宏农,张静,马久远,王国祥..太湖贡湖湾水生植被分布现状（2012年）∗[J].湖泊科学,2015,(3):421-428,8.基金项目
科技部国际合作重大专项项目(2010DFB33960)、国家自然科学基金项目(41173078)和江苏省太湖水环境治理专项基金项目(TH2012304)联合资助 （2010DFB33960）
