Discussion on Evaluation Method of Resources and Environmental Carrying Capacity Based on Sea-Land Coordination

Abstract

The ocean and coastal zones are rich in resources and closely related to human survival and development. In recent years, with the rapid growth of the ocean economy, issues such as the reduction of natural coastlines and coastal wetlands, decreased biodiversity, damaged typical ecosystems, frequent coastal disasters, and declining fishery resources have become increasingly apparent. How to enhance the ocean economy from a strategic perspective, promote both development and protection, and ensure the rational use of coastal zones and marine resources is an important issue in the new era. Land and ocean are inseparable components of the ecosystem, and conducting a comprehensive assessment of the resource and environmental carrying capacity of land and sea is an effective way to measure whether regional economic development and ecological environment are coordinated and sustainable. This paper systematically reviews the development process of the carrying capacity concept, compares commonly used methods for evaluating the resource and environmental carrying capacity of marine resources, preliminarily constructs an index system for evaluating the carrying capacity of marine resources based on land-sea coordination, proposes the use of entropy method to determine index weights, and adopts a state space evaluation model or TOPSIS model for comprehensive carrying capacity evaluation. This approach can reflect the interdependence and mutual constraints between land and ocean, and has strong operability. The evaluation results can reflect the spatial differences or temporal changes in the carrying capacity of regional resources and environment, and provide effective reference for the protection and utilization of oceans and coastal zones.

Keywords

• sea-land coordination
• resources and environment carrying capacity
• comprehensive assessment
• index system
• dpsir-topsis model