Evaluation of the coordinated development level in the coastal eco-environmental complex system: A case study of Jiaozhou Bay, China.

Mar Environ Res

College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, 266100, China; Institute of Marine Development, Ocean University of China, Qingdao, 266100, China. Electronic address:

Published: June 2024

AI Article Synopsis

  • Coastal areas are facing challenges in eco-environmental management due to rapid population growth and economic development, necessitating a comprehensive indicator system for sustainable development.
  • Research in Jiaozhou Bay, China, highlights a two-stage trend in the eco-environmental system's development from 1980 to 2020: initially declining, then improving after 2005.
  • The study emphasizes the critical role of effective policymaking to reduce human impact, enhance system performance, and promote sustainable coastal development.

Article Abstract

Given the exponential population growth and remarkable socio-economic advancements, coastal areas face increasingly complex challenges in eco-environmental management due to anthropogenic pressures. With the current emphasis on high-quality economic development, there is an urgent need to establish and evaluate a comprehensive indicator system to ensure the sustainable development of the coastal eco-environment and to meet evolving management demands. Research on the coordinated development level of coastal eco-environmental complex system, based on the concept of land-sea coordination, plays a pivotal role in promoting the resolution of eco-environmental issues in coastal areas, achieving sustainable socio-economic development in these regions. In this study, we construct an indicator system for the eco-environmental complex system in Jiaozhou Bay (JZB) coastal zone, China, comprising six sub-systems and thirty indicators. The comprehensive development level and coupling coordination degree model (CCDM) are employed in this study to analyze the indicator system in 1980-2020, aiming to elucidate the processes involved in the improvements in this complex system. The findings indicate: (i) the system's comprehensive development level evaluation and coupling coordination degree (CCD) exhibit a two-stage pattern: a declining trend in 1980-2005, followed by a rising trend in 2005-2020. (ii) despite improvements, the comprehensive development level and the CCD of the system in 2020 still hold potential for further enhancement compared to 1980; and (iii) policymaking and changes in anthropogenic pressures in coastal areas are the primary factors influencing the performance of the system. In the future, policymaking can reduce anthropogenic pressures on the coastal eco-environment, improve the comprehensive development level and CCD of the complex system, and encourage a commitment to sustainable development.

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http://dx.doi.org/10.1016/j.marenvres.2024.106515DOI Listing

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