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Determining methods for choosing natural restoration or artificial restoration in swamp wetland restoration

A technology for natural restoration and determination methods, applied in horticultural methods, botanical equipment and methods, gardening tools/equipment, etc., can solve the problems of lack of scientific basis for the selection of vegetation restoration measures in swamp wetlands, and achieve easy operation, simple methods, The effect of low cost

Active Publication Date: 2020-07-24
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of the lack of scientific basis for the selection of swamp wetland vegetation restoration measures in the process of returning large-scale farmland to wetlands, and proposes a method of selecting natural restoration or artificial restoration in the restoration of swamp wetland vegetation in large-scale conversion of farmland to wetlands. Measure to judge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0022] Specific implementation mode 1: In this implementation mode, a judgment method for selecting natural restoration or artificial restoration in the restoration of swamp wetland vegetation in large-scale conversion of farmland to wetland is carried out according to the following steps:

[0023] 1. Determination of returned farmland and collection of soil samples

[0024] Determine the area of ​​returned farmland to wetland, and collect soil according to the density of 9 soil samples per hectare of returned farmland to wetland. The collected soil is stored in a sample collection box; the collection method is: in May, the surface area of ​​the collection point Overall collection of soil with a thickness of 25cm×25cm and a thickness of 10cm;

[0025] 2. Selection of reference wetlands and vegetation survey

[0026] Select the natural wetland closest to the converted wetland as the reference wetland; from July to August, conduct the investigation of the surface vegetation of ...

specific Embodiment approach 2

[0040] Specific embodiment 2: This embodiment differs from specific embodiment 1 in that: in step 1, soil collection is carried out in a grid-shaped evenly distributed manner. Others are the same as the first embodiment.

specific Embodiment approach 3

[0041] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 or 2 is that the calculation formula of the important value in step 2 is IV=RD+RC+RF; where RD represents the relative density of species, and RC represents the relative density of species Degree and RF represent the relative frequency of the species. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a judgment method of selecting natural restoration or artificial restoration in marsh wetland vegetation restoration of wetland returned by large-area arable land, and is applied to the field of wetland vegetation restoration. The judgment method aims at solving the problem that the selection of marsh wetland vegetation restoration measures is lack of a scientific basis inthe process of returning the large-area arable land to the wetland. The method comprises the steps of determining the returned arable land and collecting a soil sample; selecting reference wetland and investigating vegetation; diagnosing the provenance of the returned arable land. 3 indexes are adopted as the judgment basis for scientific selection of a restoration technology, and the method is simple, low in cost and easy to operate and can be widely applied to selection and restoration practice of the measures of the natural restoration or the artificial restoration in the marsh wetland vegetation restoration of the northern wetland returned by the large-area arable land.

Description

technical field [0001] The invention relates to a judging method for selecting natural restoration or artificial restoration in the restoration of swamp wetland vegetation in large-scale conversion of farmland to wetland. Background technique [0002] With the large-scale development of wetlands by humans and climate change, the area of ​​wetlands in my country has decreased and the wetlands have been seriously degraded in the past 50 years. Therefore, to slow down and prevent the degradation and shrinkage of the ecosystem, and to restore and rebuild the damaged wetland ecosystem has been highly valued. With the support of a series of national ecological and environmental strategic decisions, large-scale wetland restoration projects such as "converting farmland to wetland" in my country have also been gradually carried out. For example, after experiencing large-scale and high-intensity wetland agricultural development in Northeast China and other concentrated swamp and wetl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00A01G7/06
CPCA01G7/06Y02A40/22
Inventor 王国栋姜明吕宪国王铭武海涛
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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