| 引用本文: | 邱东茹,吴振斌,刘保元,严国安,周远捷.武汉东湖水生植被的恢复试验研究.湖泊科学,1997,9(2):168-174. DOI:10.18307/1997.0212 |
| Qiu Dongru,Wu Zhenbin,Liu Baoyuan,Yan Guoan,Zhou Yuanjie.Ecological Restoration of Aquatic Vegetation in A Eutrophic Shallow Lake, Donghu Lake, Wuhan. J. Lake Sci.1997,9(2):168-174. DOI:10.18307/1997.0212 |
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| 摘要: |
| 本文报道了在武汉东湖所作的水生植被恢复的研究结果.分别在东湖水果湖、汤林湖和后湖等三个湖建立水生植被恢复示范区.挺水植物莲Nelumbo nucifera和芦苇Phragmites commumis、浮叶植物菱Trapa sp.和r-选择型的沉水植物苦草Vallisneria sp.、聚草Myriophyllum spicatum、菹草Potamogeton crispus和大茨藻Najas marina等在三个植被复示范区均可以恢复.而黄丝草Potamogeton maackianus、伊乐藻Elodea canadensis、黑藻Hydrilla verticillata等在后湖示范区可以恢复,在水果湖恢复未能成功.黑藻在汤林湖示范区也未能恢复.在水生植被演替动态研究和中试规模的恢复试验的基础上,提出了以东湖为代表的富营养浅水湖泊水生植被恢复对策. |
| 关键词: 生态恢复 水生植被 富营养化浅水湖泊 |
| DOI：10.18307/1997.0212 |
| 分类号: |
| 基金项目:国家"八五"攻关项目85-908-01-02-01 |
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| Ecological Restoration of Aquatic Vegetation in A Eutrophic Shallow Lake, Donghu Lake, Wuhan |
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Qiu Dongru1, Wu Zhenbin1, Liu Baoyuan1, Yan Guoan2, Zhou Yuanjie3
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1.institute of Hydrobiology, Chinese Academy of Sciences, Whhan 430072;2.Departmeat of Environmental Sciences, Wuhan Universidy, Wuhan 430072;3.Wuhan institute of Botany, Chinese Academy of Sciences, Wuhan 430076
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| Abstract: |
| This paper reports the results of restoration experiments of aquatic vegetation carried out in the demonstration enclosures which are situated at three different subregions in a eutrophic shallow freshwater lake, Donghu Lake of Wuhan. It is found that the r-selected submerged plants, i. e., Vallisnerta sp., Myriophyllurn spicatum, Potamogeton crispus, and Najas marina can recover spontaneously or through the artificial introduction in. the enclosures. The strategies for the recovery of aquatic vegetation of Donghu Lake have been put forward on the basis of the study of the succession dynamics of aquatic plant community and the restoration test results. First of all, the ceasing of stock of herbivorous fish and reduction of standing stock of these fishes must be carried out at once, which may enhance the recovery of submerged vegetation in the sublakes such as Niuchaohu, Houhu and Tanglinhu. The K-selected ones, such as Potamogeton maackianus and Elodea canadensis should be introduced into the above-mentioned less-polluted sublakes for the optimization of species composition and community structure. in order to restore the submerged macrophytes in the eutrophic or hypereutrophic sublakes and bays such as Guozhenghu, the engineering measures must be taken to reduce and/or remove the internal and external nutrient loading combined with the biomanipulation. The r-selected submerged plants should be transplanted at first, and then the K-selected ones may be restored after the improvement of water quality. |
| Key words: Ecological restoration aquatic vegetation eutrophic shallow lake Donghu Lake(Wuhan) |
