Semi-submersible sea grass cultivation device and method

Abstract

The invention discloses a semi-submersible sea grass cultivation device. The device comprises a supporting frame, floating systems, sinkers and anchor systems; the floating systems comprise floaters and connecting ropes, the anchor systems comprise anchors and connecting ropes, and the floating systems are connected to the upper end of the supporting frame; the sinkers and the anchor systems are connected to the lower end of the supporting frame; a cultivation layer used for cultivating sea grass is arranged in the supporting frame, and a covering layer with sieve holes is arranged above the cultivation layer. According to the device, few sea grass sources can be utilized, and a large quantity of sea grass resources which can be used for repairing a sea grass bed are obtained through fieldcultivation.

Description

technical field [0001] The invention relates to the field of ecological restoration of seagrass beds, in particular to a semi-submersible seaweed cultivation device and a cultivation method. Background technique [0002] Large areas of contiguous seagrass are called seagrass beds, which are feeding grounds, habitats, nursery grounds or shelters for rare marine organisms such as dugongs, green sea turtles, and seahorses. The high marine characteristic ecosystem plays an important ecological function in fixing the substrate, protecting the coast, improving water quality and breeding biological larvae. It is called the three coastal ecosystems together with coral reefs and mangroves. However, in recent years, with the continuous expansion of the scope of human activities and the deterioration of the environment, the decline of seagrass beds has become increasingly serious. Therefore, the restoration of seagrass beds is of great significance for the protection of existing seagra...

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Problems solved by technology

Although the application of transplantation has a good effect on the repair of damaged seagrass beds, there are still some shortcomings. To repair by transplantation, it is necessary to find the source of seagrass. It is difficult to achieve the effect if too few plants are transplanted, and too much transplantation is harmful to the seaweed. The seagrass resources in the provenance will cause greater damage. Under the background that the existing seagrass beds have been seriously declined, it is not feasible to transplant seagrass from the provenance in large quantities. It is not feasible to breed seaweed in the provenance on suitable tidal flats It is a feasible method, but it is very difficult to find a tidal flat that can be used as seagrass breeding in the environment where the natural coastline is scarce and the coastal zone is severely damaged by man-made damage. The plants cultivated indoors are poor in adapting to the wild. Therefore, research A method that uses less seagrass provenance and obtains a large amount of seagrass resources that can be used to restore seagrass beds through wild cultivation, which is particularly important for marine ecological restoration

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