Ecological element processing method and system for complex ecological coastal zone

Abstract

The invention relates to en ecological element processing method and system for a complex ecological coastal zone. The method is characterized by obtaining image data of a target complex ecological coastal zone through multi-source remote sensing and processing the image data; then, carrying out coastline classified extraction according to different types of coasts, and extracting coverage comprising vegetation, rivers and artificial coastline surfaces; and finally, according to land utilization degree grade proposed based on ecological perspective and each coverage type ecosystem service variation contribution rate, defining elements having positive ecological contribution and positive ecosystem service values as positive ecological elements and defining elements having negative ecological contribution and negative ecosystem service values as negative ecological elements to construct a coastal zone ecological element classification system. According to the land utilization degree grade proposed based on ecological perspective and each coverage type ecosystem service variation contribution rate, the system and method can fully improve difference of the element classification system in artificial intervention degree in the coastal zone ecological environment study, and help to analyze coastal zone variation characteristics more objectively.

Description

technical field [0001] This application relates to the field of ecology, in particular to a method and system for processing ecological elements used in complex ecological coastal zones. Background technique [0002] The ecological environment of the coastal zone has always been one of the hot spots that people pay attention to. The classification system of ecological elements is the basis for the study of ecological issues in the coastal zone. Scholars at home and abroad mainly conduct research on ecological elements from three perspectives: (1) Land use / cover perspective. Taking the land use type as the basic element to study its spatio-temporal pattern change fully considers the land attribute, but it does not reflect the ecological value of the land type; (2) The perspective of landscape pattern. From the perspective of landscape ecology, the type, number and spatial configuration of coastal landscape components are studied. There are different landscape classification s...

AI Technical Summary

Problems solved by technology

This type of method is based on representative ecological elements (such as wetlands) or measured changes in soil organic matter, offshore water quality, plant chlorophyll and other factors, and indirectly reveals the characteristics of changes in the overall ecological environment of the coastal zone, which is not representative of the coastal zone as a whole.

[0003] In other words, most of the existing classification methods of coastal zone ecological elements are directly based on the land use type elements to divide the ecological elements or use landscape pattern elements and measured ecological indicators as the representation of ecological elements. Insufficient disclosure of the structural characteristics of coastal ecosystems, insufficient consideration of the ecological service value of ecological elements and the degree of human intervention

Especially for some complex ecosystems, it is impossible to form a complete and objective ecological element processing method that is suitable for the characteristics of multiple development types of coastal zones, coastal zone ecosystems with various artificial intervention intensities, etc.

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