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Rapid recovery method for field sand moss crusts

A moss crust and sandy land technology, applied in the field of environmental engineering, can solve the problems of weak stress resistance, low survival rate, and poor sustainability of moss crust, achieve remarkable sand fixation effect, convenient construction, and consolidate surface sand particles Effect

Inactive Publication Date: 2020-08-21
NORTHWEST A & F UNIV
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Problems solved by technology

[0003] At present, the methods for the recovery of biological crusts are mainly based on indoor environment simulation, such as Chinese patents 200810035554.X and 201410586406.2, which are the main environmental factors (light, temperature, water, etc.) that are artificially set to limit the growth and development of mossy crusts. Compared with the wild sandy natural environment with drought, little rain and barren soil, the indoor environment has a superior growth environment, and the cultivated moss crusts have weak stress resistance and poor sustainability. The survival rate when transplanted in the wild natural environment Possibly low, it is difficult to directly promote in field engineering practice

Method used

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  • Rapid recovery method for field sand moss crusts
  • Rapid recovery method for field sand moss crusts
  • Rapid recovery method for field sand moss crusts

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Embodiment 1

[0041] 1. Sample collection and preparation method

[0042] Moss crust samples were collected from Mengjiawan Township, Yuyang District, Yulin City, Shaanxi Province (109°36'14"-109°36'24"E, 38°32'50"-38°32'54"N). The sampling site is located on the southeastern edge of the Mu Us Sandy Land, and the landform types are mainly undulating fixed and semi-fixed dunes. The main vegetations in the sampling site are Artemisia desertorum, Salixpsammophila and Caragana korshinskii, which are distributed evenly in clusters.

[0043] Select well-developed and relatively complete moss crusts in natural state, take 1cm thick (with sandy soil) with a small shovel, put them in sacks with good air permeability and transport them back indoors, and dry in the shade for 3 to 5 days. It was identified that the moss crusts were mainly composed of Bryopus, among which Bryum argenteum was the dominant species. Pick out the stumps, leaves and other debris and beat the whole crust to make the excess ...

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Abstract

The invention provides a rapid recovery method for field sand moss crusts, and relates to the technical field of environmental engineering. The method comprises the following steps: collecting moss crusts naturally developing in sandy land, drying the moss crusts in the shade and crushing the dried moss crusts to serve as a provenance, selecting a natural quicksand slope surface, arranging grass grid sand barriers through pricking, inoculating a provenance added with artemisia glue, bacillus megatherium and chlorella in the test plot, and exploring the cultivation recovery effect of the moss crusts in combination with proper maintenance measures. Results show that stable moss crusts with the coverage, the plant density and the plant height of 92.67%, 31.52 plants / cm<2> and 3.88 mm respectively are formed on the surface of the bare sand after 140 d. The method provided by the invention overcomes the limitations of long biological crust recovery process and low transplanting survival rate in a natural state, and provides a new idea and a new method for wind prevention and sand fixation of deserts in arid regions.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to a rapid recovery method for moss crusts in wild sandy land. Background technique [0002] Soil biocrusts are widely distributed in arid-semi-arid areas, especially in areas where vascular plants are difficult to survive, and are of great significance to the maintenance of local land resources and ecological environmental protection. However, desert biological crusts are easily damaged, and once damaged, it will accelerate the process of desertification. According to the size of the crust, the natural recovery time of a complete crust varies from several years to more than ten years, and the cycle is long. [0003] At present, most of the methods for restoring biological crusts are based on indoor environment simulation, such as Chinese patents 200810035554.X and 201410586406.2, which are the main environmental factors (light, temperature, water, etc...

Claims

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Application Information

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IPC IPC(8): A01G22/30A01G24/10A01G24/20A01G24/22
CPCA01G22/30A01G24/10A01G24/20A01G24/22Y02A40/22
Inventor 卜崇峰姚乐白雪强李亚红郭琦田畅韦应欣王春鞠孟辰陈祥舟
Owner NORTHWEST A & F UNIV
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