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

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...