Evaluation method, device and system for community stability of open-pit coal mine dump

Abstract

The present invention proposes an evaluation method, device and system for the community stability of an open-pit coal mine dump. The evaluation method includes: establishing an evaluation hierarchy for the community stability of an open-pit coal mine dump. The evaluation hierarchy includes: a target layer, a factor layer and an index layer , the target layer takes community stability as the evaluation target, the factor layer includes community structure, community function and community environment, and the index layer includes indicators: community diversity index, coverage, height, number of species, aboveground biomass, underground biomass , soil water content, soil total nitrogen, soil available phosphorus, and soil available potassium; use the analytic hierarchy process to calculate the weight of each index in the index layer, and build a community stability evaluation system; normalize the indexes in the index layer, and pass The evaluation system calculates the community stability index and determines the community stability level. The invention solves the technical problem that the ecological stability evaluation method in the prior art cannot accurately reflect the structural characteristics and functional characteristics of the community.

Description

technical field [0001] The invention relates to the field of coal mines, in particular to a method, device and system for evaluating community stability of an open-pit coal mine dump. Background technique [0002] Community stability refers to the static or dynamic stability of the plant community within a certain period of time and within a certain boundary range. It is a comprehensive feature of the structure and function of the plant community, and reflects the changes in the external conditions of the plant community or the existence of human disturbance. ability to resist or recover. [0003] When carrying out ecological restoration work in degraded habitats, they often focus on the research and development of individual restoration technologies, such as soil and water conservation, land reclamation, vegetation reconstruction, soil reconstruction, etc., lack of systematic thinking, poor self-sustainability of restored habitats, and high artificial maintenance costs. Th...

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Problems solved by technology

[0005] Based on the above problems, the present invention proposes an evaluation method, device and system for the community stability of an open-pit coal mine dump, which solves the technical problem that the ecological stability evaluation method in the prior art cannot accurately reflect the structural characteristics and functional characteristics of the community

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