Fishery habitat water quality evaluation method and system

Abstract

The invention discloses a fishery habitat water quality evaluation method which comprises the following steps: constructing a water quality prior probability table, a copepod density level table and acopepod density conditional probability table of an evaluation object according to historical water quality monitoring data and historical copepod density monitoring data of the evaluation object; collecting the current copepod density of the evaluation object, and constructing a density set; searching a copepod density grade table and a copepod density conditional probability table, and obtaining a copepod density conditional probability corresponding to each copepod density grade in the density set; substituting the copepod density conditional probability and the water quality prior probability into a Bayesian inference model, sequentially calculating the water quality posterior probability corresponding to each copepod density in the density set, and taking the water quality posteriorprobability corresponding to the last copepod density as an evaluation result. The invention further discloses a corresponding system. Only the copepod density is collected, the water quality evaluation result can be rapidly obtained based on the copepod density, and multiple physicochemical indexes are not needed.

Description

technical field [0001] The invention relates to a fishery habitat water quality assessment method and system, belonging to the field of fishery habitat water environment quality assessment. Background technique [0002] Fishery habitat water quality is closely related to fishery production, human life and ecosystem health. Rapid assessment of the water quality of fishery habitats is a necessary condition for rapid perception and rapid response of fishery water environment management. Traditional water quality assessment methods are mainly constructed based on monitoring data of physical and chemical indicators. The collection of many physical and chemical indicators is time-consuming and labor-intensive, and the information contained in multiple indicators is difficult to integrate, which is not convenient for rapid assessment of water quality. Contents of the invention [0003] The invention provides a fishery habitat water quality assessment method and system, which sol...

AI Technical Summary

Problems solved by technology

The traditional water quality assessment method is mainly based on the monitoring data of physical and chemical indicators. The collection of many physical and chemical indicators is time-consuming and labor-intensive, and the information contained in multiple indicators is difficult to integrate, which is not convenient for rapid water quality assessment.

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