【作者】 徐德兰； 雷泽湘； 王备新； 韩宝平； 刘正文；

【Author】 College of Envinoment and Spatial Informatics,CUMT,Xuzhou Jiangshu 221008; Department of Environmental Engineering,Xuzhou Institute of Technology,Xuzhou 221008,Jiangsu Department of Environmental Science and Engineering,Zhongkai University of Agriculture and Technology,Guangzhou 510225 Department fo Entanology,Nanjing Agricultural University,Nanjing 210095 Nanjing Institute of Geography & Limnology,CAS,diangshu Nanjing 21008 Institute of hydrobiology,dinan University,Guangzhou 510632

【机构】 中国矿业大学环境与测绘学院； 徐州工程学院环境工程系； 仲恺农业技术学院环境科学与工程系； 南京农业大学昆虫系； 中国科学院南京地理与湖泊研究所； 暨南大学水生生物研究所；

【摘要】 为探讨水生高等植物在浅水湖泊生态系统中的作用,对太湖水生高等植物、底栖动物及其湖泊水质和沉积物状况等进行了调查。结果表明:水生高等植物的存在对太湖水质,沉积物中氮磷营养盐、有机质含量和底栖动物的多样性指数均有显著影响(P<0.01)。通过对有草区和无草区进行比较后发现,水生植被能显著提高水体的透明度、降低营养盐浓度和叶绿素含量,改善水质;有草区的底栖动物多样性明显高于无草区。表明太湖水生高等植物对富营养化水质和沉积物营养盐具有一定的调控作用,对底栖动物的种类和分布有一定的影响,是维持浅水湖泊健康生态系统的重要组成部分。更多还原

【Abstract】 In order to explore the function of aquatic macrophytes in the shallow lake ecological system,the author of the present paper made an investigation about the aquatic macrophytes, macrozoobenthos,water quality,and sediments in the Tai Lake.The result of the research shows that the existence of aquatic macrophytes has a significant effect on water quality,sediments’ nitrogen and phosphorus nutrients,soil organic matter content,and the index of biodiversity of the macrozoobenthos.Through the comparison of the area with grasses and the area without grasses, the research finds that aquatic plants can greatly improve water transparency,reduce the content of Macro-Nutrients and chlorophyll,and improve water quality;the area with grasses has obvious higher macrozoobenthos biodiversity than the area without grasses.The research also reveals that Tai Lake’s aquatic macrophytes have certain controlling effect upon excessive nutritious water quality and sediments’ nitrogen and phosphorus nutrients,can partly affect the macrozoobenthos’ diversity and distribution,and is an important part to maintain the healthy shallow lake ecological system.更多还原