Method for controlling eutrophication of medium-nutrition type reservoir

Abstract

The invention discloses a method for controlling eutrophication of a medium-nutrition type reservoir. The method is characterized in that: grunion is transplanted to the medium-nutrition type reservoir and reasonably fished after maturing, and enough breeding groups are reserved at the same time; and organic matters in the reservoir are consumed by the proliferation of grunion, thus the influence of exogenous pollution to water quality of the reservoir is reduced, the plankton amount of the reservoir is controlled and the purpose of controlling eutrophication of a medium-nutrition type reservoir is achieved. The method has the advantages that: the breeding parent fish does not need to be prepared every year, the operation is simple, the economic benefit is high, the compensation speed of the organic matter consumption in the reservoir is high, the economic benefit of fishery of the reservoir and the biodiversity of the fish groups in the reservoir are well increased, and large-scale popularization and application can be achieved.

Description

technical field [0001] The invention relates to a water quality treatment method of a reservoir. In particular, it is a method for controlling the content of plankton in the mesotrophic reservoir by utilizing the rapid proliferation of small whitebait in the mesotrophic reservoir, and then controlling the eutrophication of the mesotrophic reservoir. Background technique [0002] With the continuous development of my country's economy, a large number of external pollution sources have entered the reservoir water body, resulting in different degrees of eutrophication of the reservoir water body. The main manifestations are the excessive growth of plankton in the water, the deterioration of water quality, and the destruction of water body ecology. For the sustainable development of my country's fishery, ecological restoration technology is adopted in various places to control the eutrophication of the water environment. Nowadays, filter-feeding fish such as silver carp and big...

AI Technical Summary

Problems solved by technology

However, at present, filter-feeding fish such as silver carp and bighead carp need to be produced every year, the repayment speed of organic matter consumption is slow, the cycle of obtaining economic benefits is long, and the economic benefits are low.