Cultivated land ecological risk evaluation method based on mean square error weighting method

An ecological risk and mean square error technology, applied in data processing applications, instruments, calculations, etc., can solve problems such as the lack of quantitative analysis and research on risks, the uncertainty of risk assessment results, and the unification of ecological risk assessment frameworks, etc., to achieve a wide range of applications , Evaluate the comprehensive effect
CN110443442AInactive Publication Date: 2019-11-12GUANGZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU UNIVERSITY
Publication Date
2019-11-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a cultivated land ecological risk evaluation method based on a mean square error weighting method. The method comprises: S1, determining a cultivated land ecological risk source of cultivated land to be subjected to risk evaluation and corresponding evaluation indexes; S2, calculating the weight of each evaluation index by adopting a mean square error weighting method; S3,multiplying the data of each evaluation index in the same year by the corresponding weight to obtain a comprehensive risk index; and S4, according to the comprehensive risk indexes, carrying out function grade division on the ecological risks of the cultivated land to be subjected to risk assessment, and according to a division result, making an ecological risk assessment comprehensive index distribution diagram of the cultivated land to be subjected to risk assessment. The method realizes comprehensive evaluation of various evaluation factors, and has the characteristics of comprehensive andscientific evaluation of the ecological risk of the cultivated land, wide application range and the like. The evaluation method can be applied to planning of land utilization planning, basic farmlandprotection, agricultural industry layout adjustment, biodiversity protection and the like.
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Description

technical field

[0001] The invention relates to the technical field of ecological risk assessment, in particular to a method for evaluating the ecological risk of cultivated land based on the mean square error weighting method, which belongs to the category of ecological risk assessment. Background technique

[0002] Ecological risk assessment is an important means of ecological environment management, and its related research and technical application have developed rapidly in the past ten years, and it is the basis of ecological security research. Preventing and resolving the ecological risks of cultivated land is essentially to understand, analyze and solve the ecological problems of cultivated land. In view of the importance of cultivated land resources and the objective existence of cultivated land ecological risk, in order to ensure the sustainable use of cultivated land resources and prevent the occurrence of risks, it is urgent to conduct a comprehensive study on the...

Claims

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