Method for regulating ecological water level of plain shallow lakes
A lake and water level technology, which is applied in the field of ecological water level regulation of shallow lakes in plains, can solve the problems of affecting plant growth, not considering the impact of plants, and inadequate regulation, so as to improve the absorption effect, relieve blockage, and ensure the effect of ecological functions
Inactive Publication Date: 2020-02-04
NANJING HYDRAULIC RES INST
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[0003] Purpose of the invention: The purpose of the present invention is to provide a method for regulating the ecological water level of shallow lakes in the plains, so as to solve the problems that the existing control methods do not consider the impact on plants, the control is not in place, and the problem of affecting plant growth
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[0016] The present invention will be further described below in conjunction with the accompanying drawings.
[0017] The lake ecological water level control method comprises the following steps:
[0018] (1) Determine the water depth of the wetland according to the annual average water level of shallow lakes in the plain and the elevation of the lakeside wetland;
[0019] (2) According to the water depth of the wetland, plants with adaptive characteristics are allocated;
[0020] (3) Comparing the lowest water level in the comparison area with the elevation of the wetland, according to the comparison results, arrange plants in the corresponding area,
[0021] (4) Determine the growth cycle of the configured plants, and set the water level according to the growth cycle of the configured plants.
[0022] Wherein, the water depth of the wetland in step (1) is h=X-H, where X is the water level of the shallow lake in the plain, and H is the elevation of the lakeside wetland. In ...
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The invention discloses a method for regulating the ecological water level of shallow plain lakes. The method comprises the following steps that the water depth of wetlands is determined according tothe multi-year average water level of the plain shallow lakes and the elevation of lakeside wetlands; plants with adaptive characteristics are developed according to the water depth of the wetlands and the pollution status of lakes; and the lowest water level and the wetland elevation in an area are compared, according to the comparison results, plants are developed in the corresponding area, thegrowth cycle of the developed plants is determined, and the water level is set according to the growth cycle of the developed plants. The germination rate of lakeside wetland plants is ensured, and the foundation for the later plant growth and recovery is laid; the growth of the lakeside wetland plants is promoted, and the absorptive amount of root pollutants and the absorption effect are improved; and the harvest amount of the plants is further improved, and the lake pollutant removal rate is improved.
Description
technical field [0001] The invention relates to a lakeside ecological restoration method, in particular to a method for controlling the ecological water level of plain shallow lakes. Background technique [0002] Under the severe situation of global lake eutrophication and pollution, lakeside ecological restoration and management has always been a research hotspot at home and abroad. Lakeside wetlands have good functions of intercepting and purifying pollutants, trapping and inhibiting algae, improving lakeside biodiversity, controlling sedimentation and erosion, and regulating and storing floods. They are an indispensable organic part of a healthy lake ecosystem. Lake water level regulation and lakeside plant management are two key elements to maintain the function of lakeside wetlands. Water level fluctuation is the most important hydrological situation in wetlands. The wetland dry-wet cycle and the change of the highest water depth caused by water level regulation direct...
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IPC IPC(8): C02F3/32A01G22/00
CPCA01G22/00C02F3/32C02F2103/007
Inventor 陈求稳刘东升朱昊彧施文卿陈宇琛马宏海洪迎新
Owner NANJING HYDRAULIC RES INST