Method for removing spartina alterniflora by using high-pressure water gun and replacing and recovering spartina alterniflora by using mangrove forest

Abstract

The invention discloses a method for removing spartina alterniflora by using a high-pressure water gun and replacing and recovering spartina alterniflora by using a mangrove forest, and belongs to the technical field of ecological environment protection. The method comprises the following steps: (1) determining a clearing place; (2) mowing the spartina alterniflora; (3) removing spartina alterniflora; (4) flattening the mud flat; (5) constructing an artificial tidal creek; and (6) high-density transplantation of mangrove forest seedlings. According to the method, the spartina alterniflora is treated through a physical means, the spartina alterniflora can be thoroughly removed, regeneration of the spartina alterniflora can be effectively inhibited by transplanting local mangrove forest seedlings, the purposes of spartina alterniflora removal and mangrove forest replacement and recovery are achieved, the spartina alterniflora is safely, effectively and permanently removed at low cost, and the survival rate of the spartina alterniflora is increased. And large-scale popularization and application are facilitated.

Description

technical field [0001] The invention belongs to the technical field of ecological environment protection, and in particular relates to a method for removing Spartina alterniflora by using a high-pressure water gun and replacing it with mangroves for restoration. Background technique [0002] Spartina alterniflora (scientific name: Spartina alterniflora Loisel.) is a perennial herb of the family Gramineae and Spartina. It was included in the first list of invasive alien organisms by the State Environmental Protection Administration (now the Ministry of Ecology and Environment). Spartina alterniflora has strong adaptability, strong reproductive ability, and rapid spread, and its ecological niche overlaps with mangroves, which has caused serious threats to mangroves in southeastern my country. At present, the control of Spartina alterniflora at home and abroad includes physical control, chemical control, biological replacement and comprehensive management methods. [0003] Ph...

AI Technical Summary

Problems solved by technology

The use of chemical herbicides to control Spartina alterniflora has certain limitations. Spartina alterniflora grows in the intertidal zone of the coast and is submerged by periodic seawater, which easily causes the loss of herbicides, and commonly used herbicides can only clear the surface. In the above part, it is difficult to control the growth and spread of the root system; herbicides are usually somewhat toxic and may cause uncertain effects on the marine environment

[0005] Biological substitution is mainly realized by replacing Spartina alterniflora with species with similar ecological niches and stronger competitiveness according to the law of plant community succession. Zhuhai, Guangdong uses the fast-growing exotic mangrove plant Sonneratia apetala Spartina alterniflora was successfully controlled, but due to the risk of ecological invasion due to the alien species and fast-growing properties of Spartina apetalum, it cannot be promoted on a large scale; Alternative afforestation is carried out on the tidal flats of Spartina alterniflora, but there are problems that Spartina alterniflora re-germinates at the seedling stage of candelabra, resulting in poor replacement effect and long replacement period

[0006] Comprehensive treatment methods such as "Strictina alterniflora control and bird habitat optimization project in Chongming Dongtan Bird National Nature Reserve" adopt "enclosure, cutting, flooding, drying, planting, and conditioning" to physically control Spartina alterniflora. Controlling and using native salt marsh plants such as sea clover and reeds to replace and restore, but this method requires new dikes, which has changed the natural properties of tidal flats, and the cost is high, so it cannot be promoted on a large scale

[0007] Therefore, there is a lack of a safe, low-cost, effective and durable method for removing and replacing Spartina alterniflora

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