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A kind of restoration method of coastal wetland Suaeda salsa

A restoration method, the technology of Suaeda salsa, which is applied in the field of restoration of coastal wetland Suaeda salsa, can solve the problems of insufficient upstream water, difficulty in large-scale implementation, and soil compaction, so as to improve biological connectivity and prevent sea ice erosion , The effect of the grid is firm

Active Publication Date: 2022-08-09
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in some areas of the Yellow River Delta, water diversion from the Yellow River is used to restore and improve the degraded Suaeda saline salsa wetland by the method of light pressure and salt, and some results have been achieved. However, due to the shortage of regional fresh water resources and insufficient upstream water, it is difficult to implement it on a large scale.
There is also the addition of some chemical amendments to improve the salinity of the soil to restore Suaeda salsa, but the use of large doses will cause soil compaction
However, biological methods such as transplanting are used for ecological restoration of the heavily degraded Suaeda salsa wetlands, and the effect is slow and the effect is not good.

Method used

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  • A kind of restoration method of coastal wetland Suaeda salsa
  • A kind of restoration method of coastal wetland Suaeda salsa
  • A kind of restoration method of coastal wetland Suaeda salsa

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Embodiment 1

[0031] This embodiment provides a method for restoring Suaeda salina in coastal wetlands. A grid is arranged on the coastal wetland, and the grid is woven from wetland grasses; the grid is composed of several horizontal dividing devices and The longitudinal dividing devices are vertically crossed, and several square grid cells are formed inside the grid. The grid cells are provided with micro-topography of pits and holes arranged in the shape of plum blossoms, so as to enhance the hydrological connection and biological connection of the restoration area. The grilles are arranged in the bare spot area and the degraded area of ​​the Suaeda salina wetland in the intertidal zone. The grids are laid out from mid-November to mid-December each year. Suaeda salsa grows in the grid cells.

[0032] The grid in this embodiment is a shallow grid, such as figure 2 As shown in the figure, the shallow grid is formed by splicing a plurality of cylindrical or bar-shaped grid bars 5, and the...

Embodiment 2

[0036]The difference between this embodiment and Embodiment 1 is that the shallow grid grid described in this embodiment is set in the middle tidal flat, and each grid cell in the middle tidal flat is 50-60 cm long, 50-60 cm wide, and 5-8 cm in diameter. , In this embodiment, each grid unit is 55 cm long, 53 cm wide, and 7 cm in diameter of the grid bars. The wetland grasses are reeds. The diameter of the middle tidal flat pit can be selected in the range of 10-15 cm and the depth is 8-10 cm. In this embodiment, the diameter of the tidal flat pit is 13 cm and the depth is 9 cm.

Embodiment 3

[0038] The difference between this embodiment and Embodiment 1 is that the shallow grid grid described in this embodiment is set on a low tidal flat, and each grid unit is 25-35 cm long, 25-35 cm wide, and 3-5 cm in diameter of the grid bars. In the embodiment, each grid unit has a length of 35 cm, a width of 25 cm, and a diameter of the grid bars of 4 cm. In this embodiment, the low tidal flat pits are 5 cm in diameter and 5 cm in depth. The wetland grass herb is Spartina alterniflora. Spartina alterniflora has a higher degree of lignification than reed plants, stronger toughness, salt tolerance, flood resistance, wind and wave resistance, and is more suitable for grilling. At the same time, Spartina alterniflora is included in the list of the world's 100 most dangerous invasive species. It is manifested in: (1) destroying the habitat of offshore organisms and affecting tidal flat aquaculture; (2) blocking the waterway and affecting the departure of ships; (3) affecting the ...

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Abstract

The invention relates to a method for restoring Suaeda salsa in coastal wetlands. A grid is arranged on the coastal wetland, and the grid is woven from wetland grasses; the grid is composed of several horizontal dividing devices and vertical dividing devices. The devices are arranged vertically and crossed, and a plurality of square grid units are formed inside the grid, and the grid units are provided with micro-topography of pits and holes arranged in a plum blossom shape. According to the invention, the grid is combined with the micro-topography repair of the pits, so that the living environment of Suaeda salsa is improved.

Description

technical field [0001] The invention relates to a method for restoring Suaeda salina in coastal wetlands. Background technique [0002] The coastal wetlands of the Yellow River Delta are the most complete, vast and young wetland ecosystems in the warm temperate zone in my country, and are also important transit stations, wintering habitats and breeding grounds for bird migration, and are rich in biodiversity. Due to its special geographical location and land-forming factors, the newly formed land has a short soil-forming process, a low degree of maturation, low soil nutrients but extremely high salt content, and a serious degree of salinization. Suaeda salsa is a dominant species in the coastal wetlands of the Yellow River Delta. The Suaeda salsa wetland has ecological functions such as soil and water conservation, habitat provision, and pollution purification. In recent years, under the dual influence of high-intensity reclamation activities such as farmland reclamation an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G22/00A01G9/029E02D3/00
CPCA01B79/02A01G22/00A01G9/0293A01G9/0295A01G9/0291E02D3/00E02D3/005Y02A40/22
Inventor 白军红关亚楠王伟王大伟马旭张光亮
Owner BEIJING NORMAL UNIVERSITY
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