Ecological fishery cultivating device and method based on composite vertical current artificial wet land

Abstract

The present invention discloses an apparatus and a method for the ecological fishing cultivation based on the composite vertical flow artificial wetland; wherein, the apparatus adopts the water stream as the carrier among a cultivating fish pond, an artificial wetland, an ecological channel and a water compensation pond that are serially connected with each other; the cultivating fish pond is provided with a water pump and is communicated with the artificial wetland through a culvert pipe, the artificial wetland is connected with the ecological channel, and the communication position between the ecological channel and the cultivating pond is provided with a stream fall about 50 cm. The apparatus has simple structure, is convenient to cultivate the fish and obviously improves the cultivating yield, which protects the water environment while realizing the high-quality and high-efficient health cultivating of the fishes so as to realize a pond cultivating composite apparatus that can be sustainable to use.

Description

Technical field [0001] The invention belongs to the technical field of aquaculture, and more specifically relates to an ecological fishery culture device based on a composite vertical flow constructed wetland, and also relates to a fishery culture method. Background technique [0002] As the mainstay of the aquaculture industry, pond aquaculture has not only made great contributions to solving the people’s difficulty in eating fish, but also has become a powerful industry for solving the "three rural" problems and building a new countryside. According to statistics, in 2005, the pond culture area accounted for 42.9% of the freshwater aquaculture area, and the aquaculture output accounted for 70.3% of the freshwater aquaculture output. However, for thousands of years, pond aquaculture in our country has always used clean-up or artificially excavated static water bodies for fish production. However, this traditional pond aquaculture system has the following drawbacks: [0003] (1) ...

AI Technical Summary

Problems solved by technology

However, famous, special, high-quality and high-quality fish require clear water quality, less nutrient accumulation, and large differences among species. The technical model of "fertilizing fish in water" in ponds is obviously not suitable for high-quality and high-efficiency requirements, and the breeding technology lags behind the development of modern fishery. The need for structural and variety adjustments

[0005] (2) Water resources and material energy cannot be effectively utilized

In order to meet the water quality and ecological requirements of pond cultured fish, the aquaculture wastewater must be continuously replaced and discharged, resulting in a large waste of fresh water resources and loss of available materials and energy

At the same time, the aquaculture wastewater discharged without treatment will also have a serious impact on the water ecological environment around the pond.

[0007] (3) There are major hidden dangers in the quality and safety of aquatic products

On the one hand, the increasingly frequent diseases have caused huge economic losses to farmers; on the other hand, due to the lack of highly efficient, low-toxic, and highly targeted aquatic medicines and commercial vaccines suitable for large-scale fish immunization, there is no Standardized and unscientific drug use has made the problem of drug residues a major bottleneck that plagues my country's export of aquatic products and a major hidden danger that threatens the health of our people.

[0009] (4) The quality of aquatic products has declined

At present, the increase in the output of aquatic products can only meet the needs of the people to "eat enough", but if the production model is not adjusted, it will be difficult to meet the needs of "eat well"

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