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A Plant Matching Model Suitable for Vegetation Restoration of Engineering Sites in Permafrost Regions

A technology in permafrost regions and engineering, applied in plant cultivation, botanical equipment and methods, soil preparation methods, etc., can solve problems such as difficulty in adapting to foreign grass species, difficulty in obtaining better overwintering conditions, low emergence rate, etc., and achieve clonal reproduction Strong ability, extended storage time, and strong stress resistance

Active Publication Date: 2020-04-14
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the special climatic conditions and environment of high altitude, cold and drought on the Qinghai-Tibet Plateau, it is difficult for exotic grass species to adapt, and it is difficult to achieve good results due to their low emergence rate and wintering conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] Species collocation model for restoration of engineered sites in alpine grasslands in permafrost regions

[0016] Plant combination: perennial fast-acting thin-clump grass Thallosaurus + perennial fast-acting sparse-clump grass Agrophylla + perennial fast-acting rhizome grass Laymus + perennial dense-clump type Qinghai cold ground bluegrass

[0017] Plant matching weight ratio: 2:2:2:3

[0018] Seeding rate: 6kg / mu

[0019] Seed quality: 100% clarity, germination rate >95%

[0020] The type of secondary bare land suitable for application: engineering relics in the alpine grassland for the purpose of ecological restoration.

example 2

[0022] Species collocation model for restoration of saline-alkaline alpine grassland engineering sites in permafrost regions

[0023] Plant combination: perennial fast-acting thin-clump grass Thallosaurus + perennial fast-acting sparse-clump Elymus chinensis + long-lasting dense-clump stargrass + long-lasting dense-clump Elymus

[0024] Plant matching weight ratio: 3:1:2:2

[0025] Seeding rate: 6kg / mu

[0026] Seed quality: 100% clarity, germination rate >95%

[0027] The type of secondary bare land that is suitable for application: the salinized alpine grassland project site for the purpose of ecological restoration.

example 3

[0029] Species collocation model for restoration of alpine meadow engineering sites in permafrost regions

[0030] Plant collocation: perennial fast-acting thin-clump grass Elymus chinensis + perennial rhizome-type Qinghai meadowgrass + long-term dense-clump Qinghai cold-grass bluegrass + long-term dense-clump Chinese fescue

[0031] Plant matching weight ratio: 3:2:2:1

[0032] Seeding rate: 6kg / mu

[0033] Seed quality: clarity ≥ 90%, germination rate ≥ 90%

[0034] The type of secondary bare land suitable for application: engineering remnants of alpine meadow area for the purpose of ecological restoration.

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Abstract

The invention relates to a plant matching mode suitable for vegetation recovery of a permafrost region project slash. The plant matching mode comprises the following steps: (1) mixing roegneria thoroldiana, snowfox crested wheatgrass, leymus and poa crymophila keng at the weight ratio of 2 to 2 to 2 to 3, so as to obtain a mixture applicable to an project slash of an alpine grassland region which takes ecological recovery as an aim; (2) mixing the roegneria thoroldiana, elymus nutans, puccinellia tenuiflora and puccinellia distans parl at the weight ratio of 3 to 1 to 2 to 2, so as to obtain a mixture applicable to the project slash of the alpine grassland region which takes the ecological recovery as the aim; and (3) mixing the elymus nutans, poa pratensis cv.Qinghai, the poa crymophila keng and festuca sinensis at the weight ratio of 3 to 2 to 2 to 1, so as to obtain a mixture applicable to a project slash of an alpine meadow which takes the ecological recovery as the aim. The plant matching mode provided by the invention is suitable for the plant matching mode of recovered series of a permafrost region, has extensionality and can be applied to plant recovery and reconstruction of project slashes with different types.

Description

technical field [0001] The invention relates to the field of vegetation ecological restoration of engineering ruins on the Qinghai-Tibet Plateau, in particular to a plant matching pattern suitable for vegetation restoration of engineering ruins in permafrost regions. Background technique [0002] 1. Current status and development trend of engineering sites. Research on road vegetation restoration in my country started relatively late, but profound changes have taken place in its model and scale in recent years. During the period from 1988 to 1996, the engineering site protection of the subgrade slope surface used mortar masonry, cement and other engineering slope protection forms, with high cost, rigid structure, and extremely poor landscape and ecological functions. Since the use of ecological slope protection for greening on the Kunqu Expressway in Yunnan in 1996, the vegetation restoration of road engineering sites has developed rapidly. The design idea of ​​vegetation r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00A01B79/02
CPCA01B79/02A01G22/00
Inventor 周国英杨路存王进昌聂秀青徐文华
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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