Marine ecological zoning method

Abstract

The invention relates to a marine ecological zoning method, which comprises dividing ecological zones from one stage to four levels, wherein the first-level ecological zone is divided into three first-level ecological zones of the Yellow Sea, the East Sea and the South Sea; the second-level ecological areas include the Yellow Sea second-level ecological area, the East China Sea second-level ecological area and the South China Sea second-level ecological area. The third-level ecological area is divided into the Bohai Sea, the northern Yellow Sea, the southern Yellow Sea, the East Sea continental shelf, the Chinese Taiwan strait and the northern part of the Southern Sea. According to the fourth-level ecological area, the northern bay near-shore ecological area in the third-level ecological area is selected on the basis of the third-level ecological area to be subjected to a fourth-level partition test. According to the invention, an ecological zoning method is established from different scales by applying classification elements of different levels; the method defines first to fourth levels of marine ecological regions; the similarity and difference rules of the ocean areas are revealed; dominant features of various ecological regions are determined; spatial marine ecological early warning and monitoring work is supported, and biodiversity protection and important ecological system protection of key areas are promoted.

Description

technical field [0001] The invention belongs to the field of marine ecological classification, and in particular relates to a marine ecological zoning method. Background technique [0002] Internationally, the marine ecological zoning scheme is mainly the Large Marine Ecosystem (LME) and Spalding's "Global Marine Ecological Region: Coastal Zone and Continental Shelf Biological Zoning" (MEOW). The LME zoning mainly considers ocean water depth, hydrodynamics, and primary productivity. Four ecological elements related to biological nutrition, MEOW zoning mainly considers geographical isolation (isolated islands and continental shelf systems, semi-enclosed oceans), biota, hydrology (ocean currents, upwelling, etc.) and other ecological elements. Domestically, there is no systematic and clear plan for China's marine ecological zoning from the perspective of ecosystems. Only scholars have done it from the perspective of single disciplines such as biota, marine hydrology and climat...

AI Technical Summary

Problems solved by technology

Domestically, there is no systematic and clear plan for China's marine ecological zoning from the perspective of ecosystems. Only scholars have done it from the perspective of single disciplines such as biota, marine hydrology and climate, seabed topography, sedimentary environment, fishery resources, and disaster geology. Ocean divisions, but for the same spatial region, the results of these divisions are still significantly different from each other

In addition, the existing marine ecological zoning scheme, even for the lowest-level ecological zone, still has a space unit area of ​​nearly one million square kilometers, and the regional boundaries rely heavily on literature, the accuracy cannot be guaranteed, and it is difficult to meet the requirements of national-scale marine ecological zones. Ecological management needs

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