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A green tide algae control method based on raft sinking

A raft and green tide technology, which is applied in chemical instruments and methods, botanical equipment and methods, seaweed cultivation, etc., can solve the problems of depending on the treatment effect, complicated operation process, uncontrollable and other problems, and achieves low cost and simple method. row effect

Active Publication Date: 2022-05-10
国家海洋局北海预报中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is only suitable for the recovery period of laver cultivation facilities, and the operation process is complicated, and the treatment effect depends on the degree of silt coverage of the float, which cannot be controlled.

Method used

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  • A green tide algae control method based on raft sinking
  • A green tide algae control method based on raft sinking
  • A green tide algae control method based on raft sinking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] The process of cultivating seaweed that the raft frame of the present invention sinks, including:

[0081] 1) The first stage, kidnapping: in the preparation period of seaweed cultivation, bamboo poles (“G” type) and cables are tied together to form a seaweed cultivation raft frame, which is about 140m long and fixed on the shoal.

[0082] The seaweed culture raft is equipped with heavy sandbags, each of which weighs 35kg, and the distance between two adjacent counterweight sandbags distributed along the length of the raft is 28 meters. Different from the existing seaweed culture process, the present invention does not need to install a floating body at this stage, but installs heavy sandbags, such as Figure 5 shown.

[0083] At this stage, the entire aquaculture raft frame is bundled, which takes about 25 days. When the tide is high, the raft frame sinks to the bottom of the sea, and the distance from the sea surface is about 2.5 meters, which isolates the light; whe...

Embodiment 2

[0092] The process of cultivating seaweed that the raft frame of the present invention sinks, including:

[0093] 1) The first stage, kidnapping the child: in the preparation period of seaweed cultivation, the bamboo poles (“G” type) and cables are tied together to form a seaweed cultivation raft frame, which is about 200m long and fixed on the shoal.

[0094] The seaweed culture raft is equipped with heavy sandbags, each of which weighs 50kg, and the distance between two adjacent counterweight sandbags distributed along the length of the raft is 40 meters. Different from the existing seaweed cultivation process, the present invention does not need to install a floating body at this stage, but installs a heavy sandbag.

[0095]At this stage, the entire aquaculture raft is bundled to form the entire aquaculture raft, which takes about 30 days. When the tide is high, the raft sinks to the bottom of the sea, and the distance from the sea surface is about 2 meters, which isolates ...

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Abstract

A method for preventing and controlling green tide algae based on raft sinking. In the process of laver cultivation, the method uses the method of removing the floating body and adding sandbags with counterweights to make the bamboo poles and cables fall into the seabed when the tide is high. Inhibit the germination of microscopic propagules of green tide algae, the growth of green tide algae, or kill the green tide algae.

Description

technical field [0001] The present invention relates to the technical field of biological control, specifically, the present invention relates to a green tide algae control method based on the sinking of a raft frame, and more specifically, the present invention relates to a green tide algae based on the sinking of a raft frame in the process of seaweed cultivation prevention methods. Background technique [0002] Green tides are harmful algal blooms that occur frequently worldwide and can cause severe damage to coastal environments. Under specific environmental conditions, some macro green algae in seawater (such as Ulva, Phytophthora, Scleroderma) float away from the fixed base, and cause the water body to change color due to explosive proliferation or high aggregation. This marine disaster Usually occurs in relatively high eutrophic water environments such as estuaries, inner bays and urban dense coasts. [0003] Since 2007, large-scale green tides have occurred continu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G33/02C02F1/00
CPCA01G33/00C02F1/00C02F2103/007
Inventor 丁一曹丛华李妮黄娟高宁朱文武
Owner 国家海洋局北海预报中心