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A method of river ecological restoration based on aquatic organisms' demands on hydrological conditions

A technology for ecological restoration and aquatic organisms, applied in the fields of botanical equipment and methods, plant cultivation, water conservancy engineering, etc., which can solve the problem of unsatisfactory restoration effects, lack of quantitative understanding of ecological restoration boundary conditions, and little consideration of aquatic organisms, hydrology and habitat conditions. To achieve the effect of increasing habitat diversity, enhancing natural landscape, landscape function and social function

Inactive Publication Date: 2021-06-29
INST OF AQUATIC LIFE ACAD SINICA
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  • Application Information

AI Technical Summary

Problems solved by technology

These technologies mainly start from the perspective of hydrology and water conservancy, rarely consider the needs of aquatic organisms for hydrological and habitat conditions, and lack the quantitative understanding of the boundary conditions of ecological restoration, so the actual restoration effect is not ideal; at present, river ecology based on the needs of aquatic organisms Restoration techniques rarely reported

Method used

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  • A method of river ecological restoration based on aquatic organisms' demands on hydrological conditions
  • A method of river ecological restoration based on aquatic organisms' demands on hydrological conditions

Examples

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Embodiment

[0048] Inventors such as Liu Xueqin of the Institute of Hydrobiology, Chinese Academy of Sciences carried out ecological restoration of a certain plain river channel A according to the plan, and the specific process is as follows:

[0049] (1) Investigate and survey the current status of the river: determine the shape of the river, the average water depth of the river, the bottom quality, the average water level, the lowest water level, the highest water level of the river in the past 2-5 years, and the average water level of the spring plant germination period.

[0050] Plain channel A: After investigation and survey of the channel, it was found that the channel is a straight channel with a width of 40m, an average water depth of 1.5m during the investigation period, the bottom is silt, and the shoreline is a hardened artificial embankment.

[0051] The average water level of the river is 19.5m for many years, the lowest water level is 18.0m, and the highest water level is 22....

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Abstract

The invention discloses a river channel ecological restoration method based on the hydrological condition requirements of aquatic organisms. First, the river channel is investigated and surveyed, and then the position of the ecological restoration area is determined, the spur dike is arranged, the deep pool is formed by dredging, the floodplain is constructed, and the ecological restoration is determined. The planting area of ​​plants and other operations; the present invention appropriately transforms the shape of the river channel according to the needs of aquatic organisms for hydrology and habitat conditions, and at the same time arranges suitable aquatic organism species in different habitat areas to effectively restore the river ecosystem and improve the water quality of the river channel. Self-purification ability, restoration of biodiversity and improvement of ecosystem functions; at the same time, this restoration method increases the stability of river embankments without affecting the flood discharge capacity of the river, and improves the ecological function, landscape function and social function of the river. All have excellent effects.

Description

technical field [0001] The invention relates to the technical field of river ecological environment management, in particular to a river ecological restoration method based on the hydrological condition requirements of aquatic organisms. Background technique [0002] Natural river channels are varied in shape, including deep pools, shallow settlements, floodplains and other diverse habitat types, and the biological habitats are highly heterogeneous, providing high-quality feeding and habitat for aquatic plants, benthic animals, fish and water birds, etc. Sites play an important role in the maintenance of biodiversity and ecosystem functions. Considering the needs of flood control, power generation, shipping, irrigation, etc., most rivers in the world have undergone artificial transformation, including damming, cutting and straightening, channelization, and hard revetment. While these river improvement projects have brought huge social and economic benefits, they have also l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B1/00E02B3/00E02B3/06A01G22/00
CPCA01G22/00E02B1/00E02B3/00E02B3/06Y02A20/402
Inventor 刘学勤申明华王姝然徐强强
Owner INST OF AQUATIC LIFE ACAD SINICA
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