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Vegetation restorability evaluation method based on investigation and factor correction

A restoration and vegetation technology, applied in the field of vegetation restoration evaluation based on survey and factor correction, can solve the problems of objectivity of evaluation results, lack of predictability of protection or restoration measures, unsatisfactory effects of vegetation restoration projects, etc. Achieve the effects of avoiding disorder, improving scientificity, and improving pertinence and feasibility

Active Publication Date: 2016-11-30
CHINA ACAD OF TRANSPORTATION SCI
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Problems solved by technology

[0003] 1. Due to the lack of large-scale vegetation restoration work, the measures taken to protect or restore turf in engineering practice lack predictability, and the effect of vegetation restoration projects in some areas with harsh natural environments and poor vegetation restoration is not ideal
[0004] 2. In the evaluation of vegetation restorability, the selection of each factor is highly subjective, and the factors are not screened in combination with on-site investigation, which leads to doubts about the objectivity of the evaluation results

Method used

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  • Vegetation restorability evaluation method based on investigation and factor correction
  • Vegetation restorability evaluation method based on investigation and factor correction
  • Vegetation restorability evaluation method based on investigation and factor correction

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Embodiment 1

[0075] A certain highway is located in the alpine region of the Qinghai-Tibet Plateau. The vegetation types along the way are mainly alpine grasslands, alpine meadows, desert grasslands, etc. In the construction of the highway, in order to realize the scientific planning, efficient protection and utilization of vegetation across the line, the inventors have adopted method.

[0076] First, take the central line of the highway as the object, generate 5km buffer zones on both sides, and use this area as the evaluation area. The main idea is to combine vegetation coverage and environmental factors to classify vegetation recoverability. First, extract the main environmental factors (accumulated temperature, dryness) and vegetation coverage factors in the evaluation area for classification. Select sites in areas where there is a large difference between the vegetation factor level and the main environmental factor level, recheck the soil temperature and soil moisture status at the surv...

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Abstract

Provided is a vegetation restorability evaluation method based on investigation and factor correction. The method includes that according to the natural vegetation types and the main environmental factor spatial distribution, the regional vegetation factor level and the main environmental factor level are defined, the points selected from the mutual uncoordinated parts of the two levels are subjected to uncoordinated point screening, on-site reconnaissance and reexamination, the environmental factors are developed and are combined with the main environmental factor evaluation result to define the serial environmental factor levels, the consistency of the levels with the actual site is evaluated, the vegetation factors and the environmental factors finally for the vegetation restorability evaluation are determined, and the final vegetation restorability level is evaluated. The evaluation method is scientific, practical, and is suitable for application.

Description

Technical field [0001] The invention relates to an evaluation method of vegetation restorability in the field of ecological environment, in particular to an evaluation method of vegetation restorability based on survey and factor correction, which adopts environmental factor screening and evaluation result correction combined with field survey and spatial analysis technology Methods to improve the accuracy of evaluation results. Background technique [0002] The alpine permafrost region of the Qinghai-Tibet Plateau is restricted by factors such as high cold, drought, and wind. Plant growth is extremely slow and the ecological environment is extremely fragile. Once the vegetation is damaged, it is difficult to recover. In the construction of roads, railways and other infrastructures, it is inevitable to cause damage to the vegetation along the route. Not only are there fewer types of plants available for restoration, but the restoration effect is not satisfactory. The Qinghai-Tib...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 杨艳刚陈学平王云孔亚平陈济丁
Owner CHINA ACAD OF TRANSPORTATION SCI
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