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Degraded wetland vegetation recovery method

A technology for wetland vegetation and restoration methods, which is applied in the field of rapidly and efficiently restoring degraded wetland vegetation and restoration of degraded wetland vegetation, can solve the problems of low cost of seed sowing, single landscape, and large environmental damage, so as to protect biodiversity and landscape. Good naturalness and the effect of expanding wetland area

Active Publication Date: 2020-05-15
CAPITAL NORMAL UNIVERSITY
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Problems solved by technology

Among them, for plants that can reproduce asexually, vegetative body transplantation is a method with a high success rate, but this method is only suitable for the recovery of small areas or local vegetation, and its naturalness is poor, and its maintenance cost is high and labor-intensive. The landscape is single; the turf transplantation method has a high success rate and good landscape effects, and is especially suitable for the restoration of natural wetlands, but it also has the disadvantages of high cost and great damage to the environment; the seed sowing method is low in cost and easy to operate in large areas, but At present, there are few species of wetland restoration plants that can be used for seed sowing, and the risk of failure is high

Method used

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  • Degraded wetland vegetation recovery method
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example 1

[0121] For a degraded wetland for many years, adopt the degraded wetland vegetation restoration method of the present invention, and use the provenance healthy wetland soil seed bank resources to carry out surface vegetation transplantation on the degraded wetland (refer to the aforementioned steps 1 to 3 for the specific process), wherein, The importance value is calculated as follows:

[0122] (1) Sampling, seed germination test, plant species identification and quantity statistics are carried out on the healthy wetland of the selected provenance (the specific method is as described in step 1 above), and the species of wetland plants and non-wetland plants in the healthy wetland of the provenance are obtained A total of 47 species (including 35 wetland plants and 12 non-wetland plants),

[0123] Take the wetland plant Trifoliate ghost needle as an example to calculate the important value:

[0124] Important value = (relative density + relative frequency + relative coverage)...

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Abstract

The invention discloses a degraded wetland vegetation recovery method, and belongs to the technical fields of environmental protection and ecological engineering. The method comprises the following steps: conducting background situation survey on a degraded wetland region; selecting healthy wetland with habitat conditions similar to those of degraded wetland as a provenance; conducting soil layingon a degraded wetland soil laying area by means of surface soil, containing a soil seed library, in the provenance, and conducting water supplementing to recover vegetation of the degraded wetland; and the like. According to the method, the soil seed library of the healthy wetland is used for conducting ex-situ recovery on the degraded wetland, a significant recovery effect can be obtained in 1-2years, and the method is easy to operate, good in sustainability, less in manual maintenance and high in success rate, and can be used for future ecological construction and wetland recovery projects.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and ecological engineering, and in particular relates to a method for restoring vegetation in degraded wetlands, in particular to a method for quickly and efficiently restoring vegetation in degraded wetlands by transplanting soil seed banks from healthy wetlands to degraded wetlands. Background technique [0002] Wetlands, together with land and ocean, are known as the three major ecosystems in the world, and their ecological service value and service functions are second to none among the three major ecosystems, known as the "kidney of the earth". Due to the overuse of human beings and the impact of climate change, wetlands in my country are showing an overall degradation trend, seriously affecting national ecological security and sustainable economic and social development. Restoring damaged wetlands has become one of the key tasks of national ecological construction. [0003] ...

Claims

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Application Information

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IPC IPC(8): A01G22/00A01G17/00
CPCA01G17/005A01G22/00Y02A90/40Y02A40/22
Inventor 洪剑明史国鹏
Owner CAPITAL NORMAL UNIVERSITY
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