Spatial distribution acquiring method and system for spartina alterniflora in northern sea area of Guangxi

Abstract

The invention provides a spatial distribution acquiring method for spartina alterniflora in a northern sea area of Guangxi. The method comprises the steps of establishing remote sensing interpretation tag libraries of spartina alterniflora and other typical land features in the northern sea area of Guangxi; leading in a shot remote sensing image, wherein the remote sensing image is a satellite or unmanned aerial vehicle remote sensing image which is shot during falling tide and has the spatial resolution of smaller than 2m; delimiting the growth range of the spartina alterniflora according to the living condition information of the spartina alterniflora, and cropping the remote sensing image; interpreting the cropped remote sensing image according to the remote sensing interpretation tag libraries of the spartina alterniflora and other typical land features, and calculating the area to obtain the spatial distribution of the spartina alterniflora in the northern sea area of Guangxi. According to the invention, the traditional artificial ground survey way is replaced with an image analyzing and processing technology, so that a great number of labor and materials are saved, the measuring precision is improved, the measuring efficiency is increased, and the prevention and control costs are reduced.

Description

technical field [0001] The invention relates to the technical field of remote sensing, in particular to a method and system for acquiring the spatial distribution of Spartina alterniflora in Beihai area of ​​Guangxi. Background technique [0002] Spartina alterniflora in Beihai area of ​​Guangxi is a perennial herb suitable for living in the intertidal zone. S. alterniflora originally grew on the Atlantic coast of the Americas and the Gulf of Mexico. It was introduced to my country in 1979 because of its significant role in promoting siltation, land formation and wave dissipation. Spartina alterniflora has strong adaptability and spread rapidly in my country's coastal provinces and regions, posing a threat to the indigenous species of wetlands on the local seashore. The first list of 16 invasive alien species. Spartina alterniflora is an invasive species, and its hazards are mainly: (1) destroying the habitat of offshore organisms and affecting tidal flat farming; (2) block...

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Problems solved by technology

[0006] The present invention provides a method and system for acquiring the spatial distribution of Spartina alterniflora in Beihai area of ​​Guangxi, which can solve the technical problems in the prior art that the traditional ground measurement method consumes manpower and material resources and is inefficient

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