The restoration of aquatic macrophytes for improving water quality in a hypertrophic shallow lake in Hubei Province, China
The restoration of aquatic macrophytes for improving water quality in a hypertrophic shallow lake in Hubei Province, China
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DOI：
10.1016/s0925-8574(01)00074-x
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发表时间：
2001-12-01
影响因子：
3.8
通讯作者：
He, F
中科院分区：
文献类型：
--
作者：
Qiu, DR;Wu, ZB;He, F
本文针对中国湖北省武汉市东湖富营养化浅湖恢复沉水植物以改善水质的案例进行了研究。在三个不同营养状态的子湖中建立了大型围护实验，并通过在富营养化子湖中进行围护实验来检验水质改善的有效性。水生植物恢复后，水质得到显着改善。建议污染较轻的子湖水下植被停止放养草食性鱼类后可自行恢复，应在这些子湖中引入眼子菜等K精选植物，以增强水生植被的稳定性。然而，除非外部污染被切断并且内部养分负荷显着减少，否则在严重污染的盆地中恢复沉水植物可能是不可能且经济的。在这种情况下，应将r选择的沉水植物作为大型植物恢复的先锋物种。 (C) 2001 Elsevier Science B.V. 保留所有权利。
This paper deals with a case study of the restoration of submerged macrophytes for improving water quality in a hypertrophic shallow lake, Lake Donghu of Wuhan, Hubei Province, China. Macrophyte restoration experiments were conducted in large-scale enclosures established in three sublakes of different trophic status, and the effectiveness for water quality improvement was tested by using the enclosure experiment in the hypertrophic sublake. Water quality was remarkably improved after the reestablishment of aquatic macrophytes. It is suggested that the submerged vegetation of less polluted sublakes could be capable of recovering spontaneously once the stocking of herbivorous fishes has been ceased, and the K-selected plants such as Potamogeton maackianus should be introduced into these sublakes to enhance the stability of aquatic vegetation. However, it may not be possible and economical to restore the submerged macrophytes in severely polluted basins unless external pollution has been cut off and internal nutrient loadings considerably reduced. In this case, the r-selected submerged plants should be used as the pioneer species for macrophyte recovery. (C) 2001 Elsevier Science B.V. All rights reserved.