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A kind of preparation method of peat moss propagule for peatland restoration

A technology of peat moss and propagules, which is applied in the field of preparation of peat moss propagules for peatland restoration, can solve the problems affecting the temperature and humidity of the peatland to be restored, achieve strong adaptability, improve survival rate, and have little impact on the ecological environment Effect

Active Publication Date: 2020-06-02
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires the preparation of a large number of peat moss propagule fragments and straw to ensure a sufficient number of them, and the decomposition of straw in the wild will release greenhouse gases and affect the temperature and humidity of the peatland to be restored, which will affect the ecology of the peatland. Restoration has a cascade of negative effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Collect peat moss in the field, sort and clean the capsules, soak and disinfect the capsules in 75% alcohol for 3 minutes, rinse them with sterile water, and break them in the medium according to the ratio of adding 5 mL of liquid medium to each capsule The spore capsule is prepared to prepare a spore suspension to obtain a sexual propagule suspension of Sphagnum moss. Add 2% (w / v) sodium alginate solution to the suspension and stir it into a uniform viscous liquid, add the mixed suspension dropwise into 0.1M calcium chloride solution and harden it for 30 minutes to complete the sexual propagule of Sphagnum moss Preparation of Gel Particles. Sprinkle the prepared sphagnum sexual propagule gel particles into the peatland to be restored at a density of 500 per square meter, and after they are colonized and grown, the vegetation reintroduction process required for peatland restoration can be realized.

Embodiment 2

[0026] Collect sphagnum moss in the field, after sorting and cleaning, cut the fresh plants into 2cm-long fragments, soak the plant fragments in 1% sodium hypochlorite solution for 1min, rinse with sterile water and add them to liquid medium to make suspension liquid, that is, to obtain the sphagnum moss clonal propagule suspension. Add 5% (w / v) sodium alginate solution to the suspension and stir it into a uniform viscous liquid, add the mixed suspension dropwise into 0.1M calcium chloride solution and harden it for 60 minutes to complete the sexual propagule of Sphagnum moss Preparation of Gel Particles. Sprinkle the prepared sphagnum sexual propagule gel particles into the peatland to be restored at a density of 2000 per square meter, and after they are colonized and grown, the vegetation reintroduction process required for peatland restoration can be realized.

Embodiment 3

[0028] Collect sphagnum moss in the field, after sorting and cleaning, take the capsules and cut the fresh plants into 2cm long fragments, soak the capsules in 75% alcohol for 3 minutes, rinse them with sterile water, and divide them according to each capsule Add 5mL of liquid medium to break the spore capsules in the medium to prepare a spore suspension, soak the plant fragments in 1% sodium hypochlorite solution for disinfection for 1min, rinse with sterile water and add to the spore suspension to obtain Sphagnum moss Synthetic propagule suspension. Add 3% (w / v) sodium alginate solution to the suspension and stir to form a uniform viscous liquid. Add the mixed suspension dropwise to 0.1M calcium chloride solution and harden it for 45 minutes to complete the peat moss propagule gel Preparation of Granules. Sprinkle the prepared peat moss sexual propagule gel particles into the peatland to be restored at a density of 1000 per square meter, and after they are colonized and gro...

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Abstract

The invention relates to the technical field of ecological restoration, specifically to a preparation method for peat moss propagules used for peatland restoration. The preparation method comprises the following steps: collecting peat moss with capsula from a field, carrying out cleaning, separating peat moss capsula from plants, disinfecting the capsula with ethyl alcohol, carrying out crushing so as to prepare a spore suspension used as sexual peat moss propagules, cutting the plants into segments, carrying out disinfection with sodium hypochlorite so as to obtain disinfected plant segmentsused as asexual peat moss propagules, mixing the peat moss propagules with a liquid culture medium and sodium alginate under stirring so as to obtain a uniform viscous liquid, then dropwise adding theviscous liquid into a calcium chloride solution, and carrying out hardening treatment so as to form gel particles of the peat moss propagules. The above-mentioned particles are spread into a to-be-restored peatland, and after field planting of the particles, reintroduction of vegetation in the process of peatland restoration is completed. The preparation method provided by the invention achievesthe following advantages: nutrition and protection are supplied for the peat moss propagules in a field environment by utilization of a gel; the survival rate of the peat moss propagules is improved;the peat moss propagules have strong adaptability and can be extensively applied to various degraded peatlands; meanwhile, the used gel is easy to be degraded, and has little influence on the peatland.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a method for preparing peat moss propagules for peatland restoration. Background technique [0002] As an important wetland type, peatland can fix carbon dioxide in the atmosphere in the form of peat layer accumulation, and is an important carbon sink. However, factors such as climate change and agricultural production have changed the environment of peatlands, and the hydrological conditions and vegetation status of peatlands have changed, resulting in the degradation of the ecological functions of peatlands. Therefore, peatland restoration has become a worldwide research issue. In Europe and North America, researchers have carried out a large number of peatland restoration studies and achieved rich results. [0003] The main damage to peatland comes from the artificial drainage and vegetation removal for the convenience of mechanical operation during peat mining...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00A01G24/10A01H4/00A01H11/00
CPCA01G24/10A01G31/00A01H4/001A01H4/008A01H11/00
Inventor 卜兆君刘宇王忠强
Owner NORTHEAST NORMAL UNIVERSITY
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