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Method for restoring slash type degraded wetland

A restoration method and wetland technology, applied in excavation, climate change adaptation, water conservancy projects, etc., can solve problems such as late start of work, scattered technology, lack of pertinence, etc., and achieve the effect of improving self-sustainability and stability.

Inactive Publication Date: 2011-02-02
INST OF FORESTRY CHINESE ACAD OF FORESTRY
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AI Technical Summary

Problems solved by technology

[0006] However, due to the relatively late start of my country's wetland protection and restoration work, relatively scattered technologies and lack of pertinence, a feasible and mature protection and restoration technology system has not yet been formed, and it is far from being able to solve the problem of wetland degradation in my country

Method used

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  • Method for restoring slash type degraded wetland
  • Method for restoring slash type degraded wetland
  • Method for restoring slash type degraded wetland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Figure 1-1-Figure 1-3 , Figure 2-1-Figure 2-3 and Figure 3-1-Figure 3-3 A method of hydrological communication that can be used to illustrate examples of the present invention.

[0033] The hydrological connectivity method is mainly applied to degraded wetlands where hydrological conditions have been destroyed. The method of hydrological connectivity is to adjust the shape, scale and spatial layout of water bodies through engineering measures, stabilize the water area, optimize the distribution pattern of water resources in the wetland restoration area, re-establish good horizontal and vertical connections between water bodies, and improve the ecological environment of wetlands , to ensure the normal input and output of nutrients in the wetland ecosystem, and to regulate the water conditions of the wetland biome.

[0034] Such as Figure 1-1-Figure 1-3 , Figure 2-1-Figure 2-3 and Figure 3-1-Figure 3-3 As shown, the method of hydrological communication mainly ...

Embodiment 2

[0036] The micro-terrain transformation method is mainly used in the transformation of the topography of degraded wetlands to create a suitable environment for the survival of wetland organisms. Through engineering measures, reduce the landform that is too steep or too high, level the local terrain (suitable for birds, etc.), create habitat islands, and regularize the shape of small water surfaces, so as to improve and create the living environment of wetland vegetation and water birds, and increase the diversity of wetland habitats. quality and stability.

[0037] The methods of micro-topography transformation mainly include: 1) Construction of shoal wetlands, that is, local leveling of the open areas near the undulating water surface, leveling the overly high terrain, and creating an open environment suitable for wetland vegetation growth and waterfowl habitat; 2) Regular and small Water surface, that is, by regularizing the shape of the small water surface that bends, remov...

Embodiment 3

[0040] The matrix restoration method is mainly applied to the restoration of degraded wetlands with poor soil or lack of loamy soil. Backfill loam in nutrient-poor areas through engineering measures, enhance the ability of wetland substrates to store water and nutrients, improve the transfer of nutrients in wetland ecosystems, provide breeding grounds for soil organisms, provide good nutritional conditions for vegetation, and provide birds. provide habitat for animals.

[0041] The matrix restoration methods mainly include: 1) backfilling in layers, that is, in an open area with poor soil, backfill 10-20 cm of soil (loamy soil) that meets the growth requirements of wetland vegetation in layers, and restore the wetland matrix; 2) backfilling of planting pits, that is, Within the recovery area, excavate planting pits of different specifications to backfill loamy soil, among which the diameter of the large pit x pit depth is 100×80 cm; the diameter of the middle pit x pit depth i...

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Abstract

The invention provides a method for restoring a slash type degraded wetland. The degraded wetland is restored by adopting one or more of a hydrological connection method, a microrelief transformation method, a matrix recovery method, a vegetation recovery method and a riparian zone slope protection method. According to the specific circumstance of the degraded wetland, the method can comprehensively utilize the whole technical system, and also can separately utilize certain technology. The method improves the landform, a water system, a wetland matrix and the riparian zone environment of the degraded wetland through ecological engineering measures so as to reasonably arrange wetland vegetation from land to open water, construct an optimal wetland vegetation community structure, and effectively improve the stability and the self-maintenance of the degraded wetland.

Description

technical field [0001] The invention belongs to the technical field of ecological engineering and relates to a method for restoring the ecological system function of a degraded wetland. Background technique [0002] Since 1900, with the rapid development of industry and agriculture, a large increase in population and the continuous acceleration of urbanization, as well as the impact of global changes, the global wetland ecosystem is suffering from serious degradation, making wetlands the most seriously degraded ecosystem. one. It is estimated that 50% of the original wetlands are currently lost on the earth. Since the colonial period in the United States, 50% of the wetlands have disappeared. Even now, it is still at an annual rate of 8000-16000hm 2 In the Netherlands and Germany in Europe, the wetland loss reached 55% and 57% respectively; in the 93 years from 1900 to 1993, France lost nearly 67% of the wetland; the Mekong Delta in Vietnam was massively drained during the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D17/20E02B1/00
CPCY02A10/00Y02A40/22
Inventor 崔丽娟王义飞张曼胤刘茂松黄成李伟商晓静盛晟徐驰
Owner INST OF FORESTRY CHINESE ACAD OF FORESTRY
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