A Fuzzy Comprehensive Evaluation Method of Marine Oil Spill Fishery Damage Using Structural Equation

A technology of structural equations and oil spills, applied in data processing applications, instruments, calculations, etc., can solve problems that are difficult to define accurately, and achieve scientific and reasonable evaluation results

Active Publication Date: 2021-03-26
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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Problems solved by technology

[0004] The damage of oil spill pollution to fishery resources is affected by many factors, so it is difficult to accurately define

Method used

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  • A Fuzzy Comprehensive Evaluation Method of Marine Oil Spill Fishery Damage Using Structural Equation
  • A Fuzzy Comprehensive Evaluation Method of Marine Oil Spill Fishery Damage Using Structural Equation
  • A Fuzzy Comprehensive Evaluation Method of Marine Oil Spill Fishery Damage Using Structural Equation

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Embodiment

[0021] figure 1 The damage assessment process of marine oil spill pollution to fishery resources is given, and the specific steps are as follows:

[0022] Step 1: Analysis of factors affecting marine oil spill pollution on fishery resources. Firstly, starting from the damaged object, the factors that determine the degree of damage to fishery resources caused by marine oil spill pollution are extracted, the relationship between the degree of damage to fishery resources and the determinants is analyzed, and an index system for the assessment of damage to fishery resources caused by marine oil spill pollution is established (Table 1). 1);

[0023] Step 2: Structural equation modeling analysis. Construct a structural equation model to determine the key factors that determine the degree of damage, the weight of the degree of damage and key factors, and the weight of each key factor and corresponding indicators. Firstly, a structural equation model is constructed in which the deg...

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Abstract

The invention discloses a method for evaluating damage to the fishery from marine oil spill through employing structural equation fuzzy integrated assessment, and belongs to the field of environment protection. The method comprises the steps: firstly extracting factors which determines the degree of damage to the fishery resources from the marine oil spill pollution, analyzing the relation between the fishery resource damage degree and the factors, and building an index system for evaluation of the damage to the fishery resources from the marine oil spill pollution; secondly constructing a structural equation model, determining key factors determining the damage degree, the weight of the damage degree and key factors and the weight of each key factor and the corresponding index; finally carrying out the fuzzy integrated evaluation and analysis of the degree of damage to the fishery resources from the marine oil spill pollution through combining with the weights. According to the invention, the structural equation model is introduced in the fuzzy integrated evaluation, thereby solving an indeterminacy problem of the damage degree of the fishery resources, and the accurate mutual relation among the factors enables the evaluation result to be scientific and reasonable and to accord with the reality.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a method for fuzzy and comprehensive evaluation of marine oil spill fishery damage by using structural equations. Background technique [0002] In 2015, China surpassed the United States to become the world's largest oil importer, with an annual import volume of nearly 340 million tons. Ocean transportation is the main way of China's oil transportation, and it is currently showing a continuous upward trend, and the number and tonnage of oil tankers are also increasing. The resulting offshore oil spills and pollution incidents occur frequently. According to statistics, more than 100,000 tons of oil are directly discharged into the offshore every year. [0003] The damage to fishery resources caused by marine oil spill pollution mainly comes from both physical and chemical effects. Physical effects include oil covering the surface of fishery organisms, blocking ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/0635G06Q50/02
Inventor 崔正国曲克明陈碧鹃
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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