Urban lake and reservoir water bloom emergency treatment multiple-target multiple-layer decision-making method based on Vague value similarity measurement improved algorithm
An improved algorithm and similar measurement technology, applied in the field of environmental engineering, can solve problems such as unaccounted for unknowns, and achieve the effect of avoiding strong subjectivity
Active Publication Date: 2013-12-11
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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[0013] 5. Most of the existing Vague value similarity measurement methods only consider the distance between the two ends of the interval of the Vague value and the nuclear distance, but do not consider the unknown degree. Vague value similarity measurement method
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Embodiment 1
[0111] The invention aims at the decision-making problem of water bloom emergency control in a certain city lake, and uses the method of the invention to carry out simulation verification, so as to provide a scientific reference for the decision-making of water bloom emergency control in lakes and reservoirs.
[0112] Step 1. Build a decision-making hierarchy model;
[0113] According to the characteristics of the city's lakes and reservoirs and the purpose of the research, 12 water bloom control schemes such as "endogenous nutrient salt method" were selected as alternatives, and 4 items such as "impact on surrounding environment" and "capital or labor input" were selected as decision-making objectives , select 14 attributes such as "cyanobacterial biomass" as the influencing attributes. Such as figure 2 shown.
[0114] Step 2, obtaining a decision matrix;
[0115] The evaluation values of experts on the decision-making objectives of each alternative plan are collected t...
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The invention discloses an urban lake and reservoir water bloom emergency treatment multiple-target multiple-layer decision-making method based on a Vague value similarity measurement improved algorithm and belongs to the technical field of environment engineering. The urban lake and reservoir water bloom emergency treatment multiple-target multiple-layer decision-making method includes the following steps that a decision-making hierarchical model is constructed, a decision-making matrix is obtained, a reference attribute-target Vague collective matrix is determined, a reference attribute weighted average Vague value is calculated and decision-making ordering is carried out on alternative schemes. After ordering is finished, the larger the relative close degree is, the more ideal the alternative schemes are. According to the urban lake and reservoir water bloom emergency treatment multiple-target multiple-layer decision-making method based on the Vague value similarity measurement improved algorithm, multiple-target multiple-level emergency treatment decision-making on lake and reservoir water bloom is achieved and the effect of treating the water bloom with high efficiency is finally achieved. The urban lake and reservoir water bloom emergency treatment multiple-target multiple-layer decision-making method has great significance in improvement of pertinency, scientificity and high-efficiency performance in treating the water bloom and plays an important role in protecting and improving the water environment of the urban lake and reservoir.
Description
technical field [0001] The invention relates to a decision-making method for water bloom emergency control, which belongs to the technical field of environmental engineering, and specifically refers to a multi-objective and multi-level decision-making method for water bloom emergency control in urban lakes and reservoirs based on an improved algorithm of Vague value similarity measurement. Background technique [0002] Water bloom in urban lakes and reservoirs is a typical manifestation of water eutrophication. Its harmfulness not only seriously pollutes scarce fresh water resources, but even seriously damages the ecological environment, and the algae toxins produced by it will directly threaten human health through the food chain. According to incomplete statistics, more than 60% of urban lakes and reservoirs in my country have relatively serious eutrophication, and the water quality has seriously declined. In recent years, freshwater lakes and reservoirs in many cities in ...
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IPC IPC(8): G06Q10/04G06Q50/00
Inventor 王小艺王立许继平刘载文施彦于家斌白玉廷
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY