Yellow Sea green tide prevention and control method based on shallow burying of floating ropes

A technology of floating and shallow burial, applied in botany equipment and methods, seaweed cultivation, horticulture, etc., can solve the problems of large consumption of chemical reagents, environmental risks and safety hazards, and a large amount of paint, so as to avoid the transportation and transportation of breeding materials Effects of onshore treatment, reduction of labor and production costs, and prevention of sun exposure

Active Publication Date: 2019-08-16
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

[0004] At present, regarding the removal of green algae on raft facilities in the laver culture process, Chinese patent CN 101822271A and Chinese patent CN 102550388A disclose chemical methods for removing green algae using algicides such as hydrochloric acid, citric acid, and sodium hypochlorite, although the removal effect is better , but it needs to consume a large amount of chemical reagents, and there are environmental risks and potential safety hazards; in addition, Chinese patent CN104957025B discloses a physical method to prevent green algae from attaching by applying anti-green algae paint on the raft frame, but this method requires the use of a large amount of paint , high cost, not conducive to promotion

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  • Yellow Sea green tide prevention and control method based on shallow burying of floating ropes

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Embodiment 1

[0018] The present embodiment takes the removal of green algae on the raft ropes of the Jiangjiasha laver culture area in the radiation sandbar in the southern part of the Yellow Sea as the material to further describe the present invention in detail.

[0019] 1. Due to the shallow water depth in Jiangjiasha sea area and the periodic drying out, Porphyra zebra is generally cultivated in a pillar type. Usually, the area of ​​1 cultured floating raft represents 1 mu of laver cultured area, and its raft frame structure is mainly made up of net curtain, supporting frame, floating rope, pegs, pegs (as attached figure 1 As shown), each raft frame has 2 floating ropes (polyethylene material, usually 120-180m long) and 4 floating ropes (the material is the same as the floating rope, used to connect the floating rafts). Among the raft structures of Porphyra rafts, ropes (floating ropes and ropes) are the most important attachment substrates for green tide algae.

[0020] 2. On April 5...

Embodiment 2

[0023] In this embodiment, the removal of green algae on the ropes of the rafts and ropes in the sea area of ​​laver culture in Guanyun, Lianyungang, Jiangsu Province is used as the material, and the present invention is further described in detail.

[0024] 1. Due to the shallow water depth and the periodic drying out of Guanyun coastal waters in Lianyungang, Jiangsu Province, Porphyra zebra is generally cultured on pillars. Usually, the area of ​​1 cultured floating raft represents 1 mu of laver cultured area, and its raft frame structure is mainly made up of net curtain, supporting frame, floating rope, pegs, pegs (as attached figure 1 As shown), each raft frame has 2 floating ropes (polyethylene material, usually 120-180m long) and 4 floating ropes (the material is the same as the floating rope, used to connect the floating rafts). Among the laver raft structures, ropes (floating ropes and sticking ropes) are the most important attachment substrates for green tide algae. ...

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Abstract

The invention discloses a Yellow Sea green tide prevention and control method based on shallow burying of floating ropes. According to the biological characteristics of green algae growing on porphyrarafts in radial sand ridges in Southern Yellow sea, floating ropes of rafts are shallowly buried in sediments in a payback period of porphyra culture facilities, so that the green algae on the ropesnaturally rot and reduce, formation of floating green algae is reduced, and early prevention and control of green tides in Yellow Sea is realized. Besides, by shallowly burying the floating ropes in the sediments, exposure to the sun can be prevented, culture material transportation and shoreside treatment links can be omitted, and labor and production costs can be reduced.

Description

technical field [0001] The invention relates to a method for eliminating green algae attached to ropes by means of shallow burial of floating ropes, thereby reducing the generation of floating green algae populations and realizing the prevention and control of green tides in the Yellow Sea. Background technique [0002] Since 2007, from May to August every year, green tide disasters have occurred regularly in the southern waters of the Yellow Sea. A large number of floating green algae colonies have invaded beaches and scenic spots in coastal cities such as Qingdao and Weihai, which is very unfavorable to the local landscape and tourism economy. Impact. Although the Yellow Sea green tide has appeared for more than ten years, there is still a lack of effective prevention and control measures. Only measures such as organizing salvage or setting up interception nets prevent floating green algae from landing in order to reduce losses. The successive outbreaks of green tides in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G33/02
CPCA01G33/00
Inventor 巩宁邵魁双
Owner DALIAN MARITIME UNIVERSITY
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