Ecological cultivation system for sand leaching slope water filtering pond

Abstract

The invention relates to an ecological cultivation system for a sand leaching slope water filtering pond. The system comprises a pond body, a sand leaching slope filtering structure, a water circulation pipeline, a ladder, an artificial road and an ecological ditch, wherein the pond body is provided with a pond bottom face and a pond slope face located on the peripheral side of the pond bottom face, the ladder is led from the pond bottom face to the top end of the pond slope face, the artificial road is located at the upper end of the pond edge slope face, the ecological canal is located on the outer side of the artificial road, and submerged plants and shellfish are arranged at the bottom of the canal; the sand leaching slope filtering structure is arranged at the upper portion of the partial pond slope face; the bottom of the pond body is communicated with the ecological canal through the water circulation pipeline; a controllable water level overflowing structure is arranged at the position, corresponding to the sand leaching filtering structure, of the canal wall of the ecological canal, and the water outlet end of the controllable water level overflowing structure is located above the sand leaching slope filtering structure. The system is suitable for high-density high-yield intensive culture of various feeding fish, culture of high-quality fish with the high oxygen consumption rate, cooperative culture of high-quality carnivorous fish, and culture of various special aquatic livestock, increases the yield of aquatic products, and improves the quality of aquatic products.

Description

technical field [0001] The invention relates to an ecological cultivation system of a sand filter slope filter water pond, which belongs to the field of facility fishery. Background technique [0002] In the past 20 years, the production mode of pond culture in my country has highlighted the characteristics of high density, high output and high input. In the process of pond culture, the continuous large amount of feed input will increase the residual bait debris in the culture water body and the excrement of the cultured objects, and the sediment at the bottom of the pond will accumulate thicker and thicker. These culture wastes will cause serious eutrophication in the culture water body. [0003] In severe eutrophic water bodies, the respiration of organic wastes consumes a large amount of dissolved oxygen, resulting in severe anoxic water bodies, which can easily lead to fish floating heads and the phenomenon of "flooding ponds", resulting in serious economic losses; in th...

AI Technical Summary

Problems solved by technology

However, the construction of pond culture facilities in most areas of my country is still very backward, very irregular and inefficient

One is that the construction of the side slope and bottom of the pond is unreasonable. The main manifestations are that the slope of the side slope is not suitable, the texture of the side slope is fragile, it is easy to collapse, the service life is short, and the annual maintenance will incur high costs; the bottom of the pond is not properly treated, or it is easy to collapse. Leakage, waste of water, or too thick silt, spoils water quality and is difficult to clean, or uneven, difficult to catch, easy to cause injury or death of fish during fishing operations, and affect product quality

The second is the lack of supporting water quality treatment or water quality control facilities, mainly relying on frequent mechanical aeration, water injection, water change, use of drugs and other simple methods to regulate water quality in a limited way, it is difficult to fundamentally meet the eutrophication of water under high-density intensive culture conditions The water quality control requirements required by the culture, there are many breeding diseases, and the quality of aquatic products is difficult to guarantee

The third is that the production function of the pond is single. Usually, it can only breed conventional breeding objects. It does not have the environmental conditions for the habitat, life and growth of famous and high-end breeding objects or special mid-to-high-end breeding objects. It cannot adapt to market changes and flexibly adjust breeding production objects to optimize the structure of breeding species.

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