Method for quickly creating or repairing mangrove forest by constructing levee foot submerged dam

A technology of mangroves and submerged dams, applied in botanical equipment and methods, dikes, dams, etc., can solve problems such as obstacles to the continuity and communication between seawalls and sea areas, steep slopes of tidal flats, and insufficient elevation

Pending Publication Date: 2021-02-19
GUANGXI MANGROVE RES CENT
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Problems solved by technology

Ecological seawalls should meet the requirements of naturalization, greening and ecologicalization. However, in the process of seawall construction, soil is often taken from the beach at the foot of the embankment, resulting in a seawall with a width of 20m to 50m towards the sea and a depth of 0.5- The 1m deep ditch destroys the original mangrove forest and hin

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  • Method for quickly creating or repairing mangrove forest by constructing levee foot submerged dam
  • Method for quickly creating or repairing mangrove forest by constructing levee foot submerged dam
  • Method for quickly creating or repairing mangrove forest by constructing levee foot submerged dam

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Embodiment Construction

[0025] 1. Basic method

[0026] Construction of underwater submerged dams

[0027] If there are no native mangroves on the tidal flats outside the seawall, the location and specifications of the submerged dams should be reasonably selected according to the type of tidal flat substrate and topography, and a cofferdam type submerged dam should be built outside the dike on the seaward side of the seawall to surround the tidal flats (such as figure 2 ); if there are native mangroves on the shoal outside the seawall, a deep ditch of a certain width is often formed between the seawall and the mangroves, and an intercepting submerged dam is built at both ends of the deep ditch between the seawall and the native mangroves ( Such as image 3 ). The submerged dam is made of reinforced concrete or concrete stone, and its cross section is trapezoidal. The submerged dam is buried in the bottom of the tidal flat as a whole. Its height and depth are determined according to the type of b...

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Abstract

The invention discloses a method for quickly creating or repairing a mangrove forest by constructing a levee foot submerged dam. The method comprises the following steps that an underwater submerged dam is constructed on the outer side of a seawall, mudflat treatment is performed to form a suitable forest land, and a mangrove forest is transplanted and repaired. The method is used for a standard seawall or an ecological seawall, and the problems that in the seawall construction process, mangrove forests cannot be planted and plant transition zones cannot be formed due to the fact of rapid water flow of deep ditches in the outer side of the seawall and the mudflat, steep slope, serious erosion, insufficient elevation and the like are solved. Practical application shows that the suitable forest land area with the proper elevation and the slow water flow can be formed on the mudflat on the outer side of the seawall, sea waves can be weakened, soil loss can be prevented, the mangrove forest can be quickly created or repaired, and therefore continuity and ecologicalization of the ecological seawall are achieved.

Description

technical field [0001] The invention belongs to the technical field of ecological transformation of standard seawalls or construction of ecological seawalls, and in particular relates to a method for quickly creating or restoring mangroves by building submerged dams at the foot of embankments. Background technique [0002] In 2017, the State Oceanic Administration issued the "Coastline Protection and Utilization Management Measures", which stipulates that by 2020, the national natural coastline retention rate will not be lower than 35%. In areas where the natural coast is insufficient, the ecological transformation of the traditional artificial coast (standard seawall) is an important means to achieve this goal. In 2012, Guangxi Mangrove Center first proposed the concept of ecological seawall and applied it to the construction of seawall in Fangchenggang City, Guangxi. Ecological seawalls should meet the requirements of naturalization, greening and ecologicalization. Howeve...

Claims

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Application Information

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IPC IPC(8): E02B3/10A01G17/00A01G22/00
CPCA01G17/005A01G22/00E02B3/10Y02A10/11
Inventor 范航清王欣何斌源
Owner GUANGXI MANGROVE RES CENT
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