AUTHOR=Ying Chao , Yang Yunze , Liu Yongchao 

TITLE=Analysis of the marine resource environmental carrying capacity in Zhejiang Province based on the Pressure-Support and Destructiveness-Resilience and Degradation-Promotion (PS-DR-DP) model

JOURNAL=Frontiers in Marine Science

VOLUME=Volume 9 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2022.1023769

DOI=10.3389/fmars.2022.1023769

ISSN=2296-7745

ABSTRACT=Large-scaled and high-intensity marine resource exploitation activities have brought irreversible influences on marine resource environment and ecosystem. As an important index to evaluate marine development state, marine resource environmental carrying capacity (MRECC) is vital to sustainable development of sea areas. In this study, an evaluation index system was established based on the PS-DR-DP theory model. The MRECC in Zhejiang Province from 2004 to 2018 was evaluated through categorical arrangement polygon representation. Moreover, coordination degree of the MRECC system was analyzed by using the coupling harmonious degree model. Results demonstrated that from 2004 to 2018, (1) the MRECC level in Zhejiang Province increased firstly, then decreased slightly, and finally presented a slow increasing trend; (2) The mean contributions of acting forces in the MRECC system in Zhejiang Province fluctuate between 0.64 and 0.68. It was in the high-speed unsteady growth and tended to be ideal carrying state. The positive force tends to increase, while the negative force is generally stable or only slightly increased except for the degradation force; (3) the coupling degree and degree of coupling coordination of acting force subsystems in the marine resource environmental system in Zhejiang Province presented a rising trend. The coupling degree ranged between 0.50 and 0.80 except for those in 2004, 2006 and 2007. The acting force subsystems in the marine resource environmental system in Zhejiang Province were generally running in during the study period. The coupling degree type changed from mild imbalance to moderate coordination.