富营养化浅水湖泊沉水水生植被的衰退与恢复

对国外近年来有关富营养化浅水湖泊的退化与恢复方面的研究进展以及生物操纵作用作了述评，对有关富营养化湖泊沉水植被衰退的有代表性的３种假说也作了介绍。根据“八五”期间武汉东湖水生植被重建的研究工作和多年积累的湖泊水生植被调查资料，提出了长江中下游浅湖富营养化过程中沉水植被演替的模式。

On the decline and restoration of submerged vegetation in eutrophic shallow lakes

Both the advance in the study of thc dcgradation and rcsloration of eutrophic shallow lakes and the role of biomanipulatlon in the recovcry of damaged lakc ccosystems have been revicwcd in the prescnt paper- Three models have also been introduced on the dccline of submerged macro-phytes to interpret the succession of submerged macrophyte communities in the process of eu-trophicaton of the shallow lakes in the middle and lower reaches of the Changjiang River. Based on the well-documented references and thc researchcs on the declinc and restoration of aquatic vegetation conducted in Donghu Lake of Wuhan during the 8th Five Year Plan period (1991 -1995 ), the anthors put forward a model.