A method for installing and using a cutter for controlling Spartina alterniflora outside a cofferdam

Abstract

The invention relates to a cutter for treating Spartina alterniflora outside a cofferdam. The cutter includes a triangular base, a straight brace, a diagonal brace, a column, a splint and a blade. The triangular base includes two angle irons and a square steel. The bottoms of the two angle irons are bent outwards, a section of channel steel is welded on the inner side of the connection of the two angle irons, and a straight brace is welded on the inner side of the middle part of the channel steel, and the straight brace The other end is vertically welded on the inner side of the square steel, a column is welded on the upper surface of the square steel at the connection between the straight brace and the square steel, and a diagonal brace is welded at the connection between the straight brace and the channel steel, and the other of the diagonal brace One end is welded on the top of the adjacent column, the blade is arranged at the middle position between the bottom of the angle iron and the splint, and the splint and the blade are fixed on the triangular base by bolts; How to install and use Spartina knives. The invention has the advantages of convenient installation and use and good control effect.

Description

technical field [0001] The invention relates to the field of ecological environment protection, in particular to a cutter for treating Spartina alterniflora outside a cofferdam and an installation and use method thereof. Background technique [0002] Since 1979, Nanjing University introduced Spartina altermiflora (Spartina altermiflora, which is native to the Atlantic coast of North America and is a perennial gramineous plant that grows in intertidal tidal flats) from the United States in 1979. It was used to protect beaches and dikes, first in Jiangsu The trial planting was successful, and it was introduced into Fujian in 1980, and expanded to Jiangsu, Guangdong, Guangxi, Zhejiang and Shandong in 1982. Due to its wide adaptability, strong stress resistance, fast reproduction speed, and lack of natural enemies, it quickly spreads across the country's coastal areas, causing harm to the near-shore environment, biodiversity and aquaculture, and has invaded on a large scale in m...

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Problems solved by technology

[0003] In recent years, in order to control the invasion of Spartina alterniflora, people have adopted physical or chemical methods for prevention and control, but the chemical reagents used in chemical methods will bring environmental pollution, and physical methods are generally used for control. For the growth in the cofferdam For Spartina alterniflora, due to the limited water depth, crawler mowers are generally used for prevention and control work, but for Spartina alterniflora growing outside the cofferdam, it is difficult to control and control Spartina alterniflora with crawler mowers

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