太湖的五里湖是典型的藻型富营养化湖泊，水质污染严重，水生高等植物消失。在该湖的物理 生态工程围区内外，用盆吊繁殖试验、壮芽直播试验及人工水生植物群落套种栽培试验，研究藻型富营养化湖泊中影响水生高等植物生长、繁殖的主要水环境因子。结果表明，水体透明度是制约沉水植物和浮叶植物幼苗成活及生长的主要因子。在水体透明度较低、水下光照不足时，沉水植物生长受水下光照的影响大于浮叶植物，水下光照严重不足时，沉水植物的幼苗大量死亡。１９９５～１９９７年，在围区内成功地组建了包括漂浮植物、浮叶植物及沉水植物的１５个不同的水生高等植物群落。恢复和重建的水生高等植物群落能够有效地净化富营养化水体。

In the algae-ty pe eutrophication lake in Taihu Lake, by experiments of pot-culture propagation, strong bud sowing and artificial community interplantings, the main factors that influence the g row th and propagation of aquatic hig her plants were investigated .The results show that the w ater transparency is the key control factor of survival and g row th fo r submerged and leave-floating plants .When the intensity of illumination of underwater is insufficient, the g row th of submerged plants is inhibited more strong ly than that of leave-floating plants, and their seedlings w ill die under serious insufficiency of illumination .From 1995 to 1997, fifteen species of aquatic vascular plants were introduced and vegetated in the enclosures of  hysical-ecological
engineering .Fifteen communities were reconstructed w hich include floating , leavefloating and submerged plants .It is available to purify the eutrophication lake water by the reconstructed communities .