Method for constructing mangrove forests in lagoons

A technology of mangroves and cofferdams, applied in botany equipment and methods, horticulture, cultivation, etc., can solve the problems of undiscovered mangroves, achieve the effects of preventing the death of rotten roots, increasing the survival rate, and reducing erosion and damage

Active Publication Date: 2020-04-17
中交广州水运工程设计研究院有限公司 +1
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  • Method for constructing mangrove forests in lagoons

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Embodiment 1

[0025] An example of mangrove afforestation project in a lagoon in Guangdong

[0026] 1 preliminary preparation

[0027] 1.1 Collect local hydrological data and environmental data

[0028] Collect the tidal level data of the planting area in the past 3 years and calculate the average water surface (the average water surface of the project implementation area is 1m). The planting height needs to be 0.2-0.5m higher than the surface; The annual average wave height determines whether anti-lodging measures need to be taken when planting; the local annual average temperature is 22.5°C, and the seawater salinity is about 6‰. The suitable mangrove varieties for planting include Tonghua, Candela, Mulan, Laguanmu, Bone soil and so on.

[0029] 1.2 Clear the field before land creation

[0030] Before the construction of the cofferdam, remove the boulders, oyster piles, fishing nets and other sundries with excessive diameters in the operation area to expose the original mud surface.

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Abstract

The invention provides a method for constructing mangrove forests in lagoons, and relates to the technical field of trees and mangrove forests. The method comprises the following steps of collecting data: collecting and gathering hydrogeology data and environment data at a planting region, and calculating the average water surface and water level; performing dam reclamation: performing dam reclamation, backfilling planting soil to form a continuous planting beach face, wherein the side near water, of the planting beach face is low, the side near the bank, of the planting beach face is high, the slope is 1:150-1:100, and according to the hydrological data, filling the average planting mud face until the average planting mud face is 0.2-0.5m higher than the average water surface and water level in the lagoons; performing trial planting: performing trial planting of mangrove plants on the planting mud face, and adjusting and determining mangrove forest planting technological parameters and planting varieties; and performing planting: according to planting technological parameters determined through trial planting, distributing nursery stocks, and performing forest sealing for conservation. Through the adoption of the method disclosed by the invention, the mangrove forests can be successfully constructed by the mangrove plants in the lagoons, the survival rate of the mangrove plants is high, and the root rotting rate is low.

Description

technical field [0001] The invention relates to the technical field of mangrove planting, in particular to a method for building mangroves in lagoons. Background technique [0002] A lagoon is a localized body of salt water separated from the open sea by a sand spit, sand bar or coral. The coast of the lagoon is affected by reclamation and breeding, sun-drying salt, artificial sewage, etc., as well as the construction of mainly hard embankments. The basis for the survival of coastal vegetation and aquatic organisms has changed. The succession of plants and xerophytes and the solidified revetment hinder the water and air circulation of the bay road and the vegetation along the bay, which not only makes many land plants lose their living space, but also makes some aquatic animals lose their living places. The deterioration of the sea water environment and the pollution of the sediment have caused devastating damage to the marine wetland ecosystem. [0003] Mangroves have the...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G13/00
CPCA01G17/005A01G13/00
Inventor 魏小辉李世峰张向营程鹏李承柱袁星
Owner 中交广州水运工程设计研究院有限公司
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