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引用本文:马剑敏,严国安,罗岳平,李益健,余荆意,张进忠.武汉东湖受控生态系统中水生植被恢复结构优化及水质动态.湖泊科学,1997,9(4):359-363. DOI:10.18307/1997.0411
Ma Jianmin,Yan Guoan,Luo Yueping,Li Yijian,Yu Jingyi,Zhang Jinzhong.The aquatic vegetation restoration and its structure improvement and water quality dynamics in the controlled ecosystem in East Lake (Wuhan). J. Lake Sci.1997,9(4):359-363. DOI:10.18307/1997.0411
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武汉东湖受控生态系统中水生植被恢复结构优化及水质动态
马剑敏, 严国安, 罗岳平, 李益健, 余荆意, 张进忠
武汉大学环境科学系, 武汉 430072
摘要:
于1993-1995年对武汉东湖的布围和网围受控生态系统中的植被恢复、结构优化及水质进行了初步研究,结果表明:在受控生态系统中,水生维管束植物生物量明显增加,控制养殖规模是恢复水生植被的前提,自然恢复的水生植被,结构较简单,通过选种优良植物,可优化植被结构,加速植被恢复进程;恢复水生植被时.应以沉水植物为主体;生长良好的水生维管束植物能使水中N、P浓度明显降低,浮游植物生物量减小;莲、芦苇、苦草、狐尾藻和金鱼藻适应性较强,可作为重建水生植被的物种.
关键词:  受控生态系统  水生植被  恢复  结构优化  东湖
DOI:10.18307/1997.0411
分类号:
基金项目:国家"八五"科技攻关项目85-908-01-02
The aquatic vegetation restoration and its structure improvement and water quality dynamics in the controlled ecosystem in East Lake (Wuhan)
Ma Jianmin, Yan Guoan, Luo Yueping, Li Yijian, Yu Jingyi, Zhang Jinzhong
Department of Environmental Science, Wuhan University, Wuhan 430072
Abstract:
In order to restore damaged lake aquatic vegetation, a research was carried out on the aquatic vegetation restoration and its structure improvement and water quality in the controlled ecosystems which were made of waterproof cloth and nylon net in Kasi Lake (Wuhan). The results show that in the controlled ecosystems. the biomass of aquintic vascular plants increased obviously. the floating plants settled down easily. To limit fish culture was the primary way to restore aquatic vegetation. The aquatic vegetation restored naturally was simple in structure. By choosing fine plant species and having them planted scientifically. the aquatic vegetation can be restored faster, and its structure improved. Submerged plants would be the main aquatic species in restoration vegetation. The well grown aquatic vascular plants can decrease N, P concentrations in water body and phytoplankton biomass. The Nelumbo nucifeia, Phragmites coifunmiis, Vallisneria spiralis, Myriophylhun spicatum and Ceratophyllum demersum are qualified for adaptability, and can be selected as the species to rebuild the aquatic vegetation in East Lake (Wuhan).
Key words:  Controlled ecosystem  aquatic vegetation  restoration  structure improvement  East Lake (Wuhan)
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