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A method to control non-target species and promote reestablishment of dominant vegetation in degraded peatlands

A vegetation reconstruction, non-target technology, applied in the field of peat swamp ecological restoration, can solve the problems of native plant destruction in peatland

Active Publication Date: 2022-01-28
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that native plants in peatlands are seriously destroyed, and provide a method for controlling non-target species in degraded peatlands and promoting the reconstruction of dominant vegetation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 A method of controlling non-target species in degraded peatland and promoting the reconstruction of dominant vegetation

[0019] A method for controlling non-target species in degraded peatland and promoting the reconstruction of dominant vegetation is specifically carried out in the following steps:

[0020] 1) Topsoil removal and raking: in early April in spring, when the soil surface is thawed but the lower layer is still frozen, use a bulldozer to remove litter on the surface and soil with a thickness of 0-10 cm on the surface. After removing the topsoil, perform mechanical plowing, and then The restoration area is irrigated, and the irrigation depth is 5cm of surface water, so that the restoration area forms a mirror field;

[0021] 2) Acquisition of Carex pylons: From late April to early May in spring, select Carex pylons that grow vigorously, then dig a part of Carex pylons longitudinally, keep the original soil at the roots, and divide the excavated Ca...

Embodiment 2

[0026] Example 2 A method of controlling non-target species in degraded peatland and promoting the reconstruction of dominant vegetation

[0027] A method for controlling non-target species in degraded peatland and promoting the reconstruction of dominant vegetation is specifically carried out in the following steps:

[0028] 1) Topsoil removal and raking: In early April in spring, when the soil surface is thawed but the lower layer is still frozen, use a bulldozer to remove litter on the surface and soil with a thickness of 0-10 cm on the surface. After removing the topsoil, carry out mechanical plowing, and then The restoration area is irrigated, and the irrigation depth is 5cm of surface water, so that the restoration area forms a mirror field;

[0029] 2) Acquisition of Carex pylons: From late April to early May in spring, select Carex pylons that grow vigorously, and then dig a part of Carex pylons longitudinally, keep the original soil at the root, and remove the excavat...

Embodiment 3

[0034] Example 3 A method of controlling non-target species in degraded peatland and promoting the reconstruction of dominant vegetation

[0035] A method for controlling non-target species in degraded peatland and promoting the reconstruction of dominant vegetation is specifically carried out in the following steps:

[0036] 1) Topsoil removal and raking: in early April in spring, when the soil surface is thawed but the lower layer is still frozen, use a bulldozer to remove litter on the surface and soil with a thickness of 0-10 cm on the surface. After removing the topsoil, perform mechanical plowing, and then The restoration area is irrigated, and the irrigation depth is 5cm of surface water, so that the restoration area forms a mirror field;

[0037] 2) Acquisition of Carex pylons: From late April to early May in spring, select Carex pylons that grow vigorously, then dig a part of Carex pylons longitudinally, keep the original soil at the roots, and divide the excavated Ca...

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Abstract

The invention discloses a method for controlling non-target species in degraded peatland and promoting the reconstruction of dominant vegetation, which comprises: 1) surface soil removal and raking; 2) tower head sedge acquisition; 3) sedge transplanting; 4) water level control; 5) late management; 6) overwintering protection; the advantages of the present invention are: 1) effectively control the reproduction of non-target species in the restored land; solve the problems of large soil volume, compact soil, and root system of transplanted plants in abandoned peat land; Difficult problem, to improve the survival rate of Carex, the survival rate of Carex of different sizes is higher than 95%; and effectively remove a large number of non-target species before transplanting, weakening the reproductive ability of weeds; 2) In each growth stage of Carex , take different water level control measures to control the reproduction and growth of weeds, and water level fluctuations can promote the reproduction of the dominant species Carex thaliana; The rapid propagation of Carex forms a stable Carex community.

Description

technical field [0001] The invention belongs to the technical field of peat swamp ecological restoration, and in particular relates to a method for controlling non-target species in degraded peatland and promoting the reconstruction of dominant vegetation. Background technique [0002] As an important carbon sink, peatlands store carbon dioxide in the atmosphere in the form of organic carbon in the peat layer, and are a type of wetland with a relatively fast accumulation rate of terrestrial carbon. In recent decades, human activities such as agricultural production and peat mining have destroyed the hydrological habitat of peatlands, the area of ​​peatlands has gradually decreased, and the ecological service functions have been greatly reduced. Restoring the ecological functions of peatlands has become a problem facing today. In Europe, North America and other regions, the exploitation and utilization of peatland was earlier, and for the restoration of sphagnum peatland, mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00A01B79/02
CPCA01G22/00A01B79/02
Inventor 段磊磊王铭王升忠李兴丽赵婧
Owner NORTHEAST NORMAL UNIVERSITY
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