Ecological influence evaluation system for road construction project in natural protection area

Abstract

The invention relates to the field of natural protection, in particular to an ecological influence evaluation system for a road construction project in a natural protection area. The system comprisesthe steps of evaluation index determination, endangered species involved determination, influence evaluation index influence grade determination, influence evaluation index membership function determination, influence evaluation index weight calculation, fuzzy comprehensive evaluation and ecological influence grade determination. According to the system, the membership degree of each element is determined by utilizing the 'reduced semi-trapezoidal distribution diagram', so that the influence condition of each index on the natural reserve is more specific and clear, and rapid inspection is carried out by calculating the ecological influence index EI of the road construction project. According to the invention, the early warning index and the one-ticket denying index are integrated, the overall ecological influence of the road construction project can be rapidly evaluated, and the ecological influence degree of the road construction project on the natural conservation area can be objectively and quantitatively reflected.

Description

technical field [0001] The invention relates to the field of nature protection, in particular to an ecological impact assessment system for road construction projects in nature reserves. Background technique [0002] Road construction has brought great benefits to human society, but it also has direct or indirect impacts on many ecological processes. A large number of theoretical studies on road ecology have been carried out internationally, and have been widely used in the evaluation of road ecological impact, which has important reference and reference value for the development of road ecological impact research in my country. Scholars in my country have also carried out a lot of research, but the research on the ecological impact of road construction on nature reserves often only focuses on a specific aspect, such as the impact area of ​​roads, animal death, plants and soil within the road area, and the impact on biodiversity. In terms of evaluation and other aspects, the...

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Problems solved by technology

[0006] Aiming at the inaccurate evaluation results of the ecological impact evaluation system for road construction projects in nature reserves in the prior art, the purpose of the present invention is to provide an ecological impact evaluation system for road construction projects in nature reserves, including the determination of evaluation indicators, involving endangered The determination of species, the determination of the impact level of the impact evaluation index, the determination of the membership function of the impact evaluation index, the calculation of the weight of the impact evaluation index, the fuzzy comprehensive evaluation, and the determination of the ecological impact level; the present invention uses the "reduced half-trapezoidal distribution map" to determine the degree of membership of each element, Make the impact of each indicator on the nature reserve more specific and clear, and can objectively and quantitatively reflect the degree of ecological impact of the road construction project on the nature reserve

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