Method for determining discharge capacity of drainage basin fresh water aquiculture pollution

Abstract

The invention relates to a method for determining the discharge capacity of drainage basin fresh water aquiculture pollution. The method comprises the steps that drainage basin aquiculture modes, aquiculture types and corresponding yields are inquired and confirmed; investigation and survey are carried out according to the basic situation of aquiculture, and basic calculation models of various pollutant discharge coefficients under the different aquiculture types and the different aquiculture modes are studied and determined based on the field measurement method and the material balance method. According to the method, on one hand, the basic search is carried out, the features of drainage basin aquiculture are combined, and the effect of aquiculture on the water environment is reasonably evaluated; on the other hand, the basic calculation models of various pollutant discharge coefficients under the different aquiculture types and the different aquiculture modes are studied and determined based on the field measurement method and the material balance method, and reducing of the production efficiency and increasing of aquiculture cost are avoided.

Description

technical field [0001] The invention belongs to the calculation field of aquaculture pollution load, and in particular relates to a method for determining the discharge amount of freshwater aquaculture pollution in a watershed. Background technique [0002] With the rapid development of freshwater aquaculture, traditional extensive aquaculture is constantly changing to modern intensive aquaculture. The aquaculture area and production scale continue to expand, and the types and methods of aquaculture have changed greatly, so the amount of residual bait and excrement left by the aquaculture organisms after eating has also increased. As the input of external sources (bait) increases, the dissolved and suspended substances also increase, resulting in the pollution of the aquaculture water body to itself and the surrounding water environment, which directly affects the development of my country's aquaculture industry and the continued growth of my country's economy. More and mor...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the existing single calculation method cannot accurately calculate the pollutant discharge amount of freshwater aquaculture in a watershed with different breeding modes and types of culture, the present invention provides a method for determining the pollutant discharge amount of freshwater aquaculture in a watershed. In one aspect of the present invention Starting from the basic investigation, combined with the characteristics of watershed aquaculture production, by focusing on the measurement of representative typical aquaculture models and parameters of aquaculture species, the impact of aquaculture on the water environment is reasonably evaluated. On the basis of the balance algorithm, study and determine the basic calculation model of various pollutant discharge coefficients under different farming species and farming models, and calculate the discharge of freshwater aquaculture pollution in the basin more accurately, avoiding the reduction of production efficiency and the increase of aquaculture costs

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