Coastline dividing method and system based on land cover utilization principle

Abstract

The invention relates to a coastline dividing method and system based on a land cover utilization principle. The method comprises the steps of dividing a sandy coast formed by wave motion, dividing a powdered sand and silt coast containing silt, dividing a bedrock coast which is of a rock structure, dividing an estuary coast which is distributed in a bending manner and/or dividing an artificial coast including a wharf or a revetment or a dike or a bulwark or a salt pan, conducting connection treatment on the divided coasts, and forming coastlines. According to the coastline dividing method and system based on the land cover utilization principle, the problems that coasts have various types and purposes and are high in natural variability and artificial categorization arbitrariness, and it is difficult to accurately survey and mark out the coastlines on different types of coasts are effectively solved; dividing bases based on the coastal-zone land cover utilization principle are given out for each coast type, and the advantages of being unified in dividing standard, reliable in dividing basis and reasonable in dividing scheme are achieved. The coastline dividing method and system are simple in principle, high in implementation and capable of being widely applied to the field of coastal-zone ecological environment assessment and the like.

Description

technical field [0001] The present application relates to the technical field of coastline division, in particular to a coastline division method and system based on land cover utilization principles. Background technique [0002] The coastline is the functional boundary between the ocean and the land, but the specific identification of the coastline in existing research, or the criteria for positioning it is not completely unified, or even chaotic. The reason is mainly because the seawater fluctuations and advances and retreats caused by tidal movement are in progress all the time, and in this continuous change, the boundary between seawater and land will migrate horizontally in the transition zone between sea and land without interruption . Under the conditions of complex climate and ocean dynamics, the migration distance of the sea-land boundary is unpredictable, and the specific location of the coastline will become difficult to distinguish due to the uncertainty caused...

AI Technical Summary

Problems solved by technology

[0011] Based on this, it is necessary to address the above problems and provide a coastline division method and system based on the principle of land cover utilization, which can effectively solve the problem of coastlines with various types and uses, strong natural variability, high randomness of artificial classification, and different types of coastlines. It is difficult to accurately survey and delineate the coastline on the coast, and combined with the natural attributes and pattern characteristics of the coastline, it provides a complete coastline delineation standard and a clear and clear confirmation scheme for the coastline position

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