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Method for controlling non-target species of degraded peat land and promoting dominant vegetation reconstruction

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: 2020-06-26
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, 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;

[0029] 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 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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PUM

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Abstract

The invention discloses a method for controlling non-target species of a degraded peat land and promoting dominant vegetation reconstruction. The method comprises the following steps: (1) removing surface soil and performing raking; (2) obtaining Carex tato; (3) transplanting Carex tato; (4) performing water level control; (5) performing final-period management; and (6) performing overwintering protection. The method has the advantages that firstly, the reproduction of non-target species is effectively controlled and restored; the problems that abandoned peat land is large in soil volume, compact in soil and difficult in root system pricking of transplanted plants are solved, the survival rate of Carex tato is increased, and the survival rates of Carex tato of different sizes are all higher than 95%; and before transplanting, a large number of non-target species are effectively removed, and the reproductive capacity of weeds is weakened; secondly, different water level control measuresare taken at each growth stage of Carex tato to control the reproduction and growth of weeds, and the water level fluctuation can promote the reproduction of dominant species of Carex tato, and thirdly, the later-period management is more perfect, sexual reproduction of the weeds is blocked, rapid reproduction of the Carex tato is facilitated, and a stable Carex tato community is formed.

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 Applications(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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