Method for evaluating regional marine organism index and pollution bearing index

Abstract

The invention discloses a method for evaluating a regional marine organism index and a pollution bearing index. The method comprises the following steps: determining a biological index evaluation system and a pollution bearing index evaluation system, selecting sea area survey points, obtaining original survey data, determining characteristic values of indexes, obtaining actual values of the indexes, performing standardized valuing processing on index values, and determining weights of the indexes; and determining evaluation standards of the two evaluation systems and exploring an internal relation between the two evaluation systems. The method is a scientific analysis method for indexing the marine environment and quantitatively evaluating the diversity and pollution conditions of marineorganisms, can truly reflect the quality of the marine ecological environment and the maximum capacity of pollutants capable of being borne by a water body to the maximum extent, and makes scientificand systematic quantitative judgment on the diversity and water quality conditions of the marine organisms in a region; most importantly, the method can explore the mutual relation between the marineorganism diversity and the water quality condition, and provides a scientific reference basis for marine environment protection and fishery development.

Description

technical field [0001] The invention relates to the field of regional marine environment evaluation, in particular to an evaluation method for regional marine biological index and pollution bearing index. Background technique [0002] The marine ecological environment is the basic condition for the survival and development of marine organisms, a key part of the human life support system, and an important foundation for the development of human society and economy. It has significant ecological and economic benefits. With the rapid development of urbanization and industrialization of coastal cities, the economic scale of various industries has also continued to expand, and new opportunities have been ushered in for industrial development, but the marine ecological environment is also facing huge challenges. Untreated industrial and urban sewage is discharged in large quantities, resulting in a sharp increase in COD, BOD, ammonia nitrogen and heavy metals in seawater, damage t...

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Problems solved by technology

[0004] However, in the current research field, there is no systematic and quantitative evaluation of marine biodiversity and pollution, which is not conducive to the governance and prediction of the marine environment

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