富营养浅湖水生植被重建对底栖动物的影响  

EFFECTS OF REESTABLISHMENT OF AQUATIC MACROPHYTES ON ZOOBENTHOS IN A EUTROPHIC SHALLOW LAKE

作　　者：刘保元[1] 邱东茹[1] 吴振斌[1] 

机构地区：[1]中国科学院水生生物研究所,武汉430072

出　　处：《应用与环境生物学报》1997年第4期323-327,共5页Chinese Journal of Applied and Environmental Biology

基　　金：国家"八五"科技攻关项目!85-908-02-01的部分内容

摘　　要：利用在极富营养型的浅水湖泊所建立的大型实验围隔系统，对水生植被恢复后底栖动物群落的变化作了为期3a的研究．4个围隔和大湖对照点共采集到底栖动物38种，Ⅰ、Ⅱ和Ⅲ号围隔人工恢复沉水植被后，水质得到明显的改善，底栖动物群落结构发生明显的变化：其种类项目、个体密度和生物量增加，软体动物重新出现，生物多样性提高．对底栖动物与水生植物之间的相互关系也作了探讨．The effects of macrophyte reestablishment on zoobenthos were studied by using large-scale multi-celledclosure system installed in a hypereutrophic shallow lake, Donghu Lake, Wuhan, China. There were 38species of zoobenthos found in four experimental enclosures(Ⅰ, Ⅱ,Ⅲ, Ⅳ )and an adjacent sampling plot(Ⅴ) outsied the enclosures. The artificial reestablishment of maerophyies, dominated by submerged macrophytes, resulted in remarkable improvement of water quality and obvious increases of species number,indiaviduai density and biomass of zoobenthos in the enclosures Ⅰ, Ⅱ and Ⅲ. Moreover, as compeed to thecontrol enclosure Ⅳ and the adjacent samping plot (Ⅴ), some mollusca reappeared following the macrophyterestoration in the enclosures, and the biodiversity indicated by Shannon-Wiener's index and Margalef'sindex also increased considerably. The relationship between submerged macrophytes and zoobenthos is alsodiscussed in thes paper.

关 键 词：富营养浅水湖泊 水生植被重建 底栖动物 

分 类 号：Q958.894[生物学—动物学] Q948.881