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Method for building local mangrove forest on intertidal zone unsuitable for forestation

A technology of mangroves and tidal flats, applied in forestry, afforestation, climate change adaptation, etc., can solve problems such as restoration and reconstruction of unfavorable coastal wetland ecological environment, threat of native mangroves, ecological invasion, etc., to achieve coastal landscape improvement and low afforestation cost , The effect of ecological function improvement

Inactive Publication Date: 2011-05-18
香港城市大学深圳研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, S. apetalum has particularly strong adaptability and fecundity. Compared with native tree species that grow slowly and have higher requirements for tidal flat conditions, it has stronger competition and dispersal capabilities. It has the risk of ecological invasion. Therefore, large-scale single The artificial planting of mangroves with S. apetalum will pose a threat to the native mangroves, which is not conducive to the restoration and reconstruction of the coastal wetland ecological environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] On the light beach in the low-shoal zone of unsuitable forest land where the native mangrove plants outside the artificial reclamation area cannot grow (the elevation of the light beach is 10-20cm lower than the tidal flat elevation where the native mangrove plants can naturally distribute), select the long (along the coastline) direction) 30m and width (from the shore to the sea) 15m, first plant 220 annual seedlings of Sangria apetala in this area, with a height of 50-70cm, and tie the seedlings to the bamboo poles with ropes. The row spacing is about 1.5m×1.5m. After the saplings (surviving) are planted for 2 years, manually remove all the sea mulberries. The method of removal: cut off the trunk of the sea mulberry at a distance of 10-15 cm from the ground, Apply 20 grams of 70% sulfuron-methyl powder, and seal the section with rope and plastic film to prevent germination, and remove branches, stems, stems and leaves, and keep the aerial roots exposed on the tidal fla...

Embodiment 2

[0027] In the periphery of the artificial reclamation area, select 600m of tidal flats in the middle and low tidal zones that are not suitable for forests where native mangroves cannot grow. 2 (30m×20m), the tidal flat elevation is 10-15 cm lower than that of the native mangrove forest land, the length of the forest land along the coast is 30m, and the width from the coast edge to the sea is 20m. First, plant 651 annual seedlings of Sangria apetalum in this area, and the spacing between the plants and rows is about 1m×1m. After the saplings (survival) are planted for 3 years, manually remove all the Sangria apetalum. Cut off the stem at a distance of 10-15 cm from the ground, apply 23 grams of 60% sulfuron-methyl powder on each remaining section, and seal the section with a rope and plastic film to prevent germination, and remove branches, stems, stems and leaves, and keep Aerial roots exposed on tidal flats. A total of 6,767 annual saplings of 6 species of native mangrove ca...

Embodiment 3

[0029] On the tidal flat to be restored, the tidal flat elevation is 15-20cm lower than that of mangrove suitable forest land, and 900m of unsuitable forest land without native mangrove plant distribution is selected 2 (30m×30m), firstly plant 441 annual seedlings of S. apetalum in this area, and the spacing between plants and rows is about 1m×2m. After 2.5 years after the saplings (surviving) are planted, manually remove all the saplings. The removal method : Cut off the trunk of Sangria sinensis 10-15cm from the ground, apply 20g of Diuron 30% wettable powder on each remaining section, and seal the section with rope and plastic film to prevent germination, and remove the branches, Stems, stems and leaves, and aerial roots exposed on the tidal flats. A total of 6,000 annual saplings of 4 kinds of native mangrove candela, olive tree, tung tree, and mouse bougainvillea were planted on the forest land after the removal of Sangria apetalum. The spacing between plants and rows was...

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Abstract

The invention relates to a method for building a local mangrove forest on an intertidal zone unsuitable for forestation, belonging to the technical field of forestation on the intertidal zone. The method comprises the steps of: planting a Sonneratia apetala forest on the intertidal zone unsuitable for forestation; after the Sonneratia apetala forest is planted for 2-3 years, eliminating all Sonneratia apetalas ; and re-planting the local mangrove forest on the intertidal zone after the Sonneratia apetalas are eliminated. The mangrove forest is built on the intertidal zone unsuitable for forestation by applying the method provided by the invention, which can not cause interference on a coast wet land environment, but also avoids the ecological invasion risk; and the mangrove forest has a high survival rate.

Description

technical field [0001] The invention relates to an afforestation method for planting native mangroves on tidal flats, in particular to a method for building native mangroves on tidal flats in middle and low tidal zones which are not suitable for forests where native mangrove plants cannot grow naturally. Background technique [0002] Mangrove wetlands are generally located in the sea-land transition zone, and are mainly concentrated on coastal intertidal tidal flats that are periodically flooded by seawater. They are formed by the combined effects of the atmospheric system, land system, and water system, with mangrove species as the construction species. , The wetland ecosystem at the edge of land and sea has unique hydrological, biogeochemical and ecological functions. Mangrove wetlands are one of the four most productive marine ecosystems in the world and play an irreplaceable role in the global ecological balance. At present, due to population pressure and economic deve...

Claims

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Application Information

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IPC IPC(8): A01G23/00
CPCY02A40/22Y02P60/40
Inventor 昝启杰谭凤仪刘莉娜杨琼
Owner 香港城市大学深圳研究院
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