长山群岛海水养殖与海域生态环境耦合协调关系分析

Analysis on Coupling and Coordination Relationship Between Mariculture and Marine Ecological Environment in Changshan Islands

海水养殖活动与海域生态环境存在交互影响关系。文章基于超效率DEA模型和内梅罗指数评价结果,利用耦合协调关系模型分析了长山群岛2006—2018年海水养殖业和海域生态环境质量之间的关系演变过程。结果表明:(1)长山群岛海水养殖业效率呈倒“U”形变化趋势,其发展水平仍处于粗放式发展阶段,在技术应用和规模效率方面亟待提升;(2)受近岸养殖业快速发展的影响,海域生态环境质量在2006—2013年逐渐变差,2014年以后有所好转;(3)海水养殖与海域生态环境的耦合度经历了从拮抗关系向高度耦合转变,协调度在2006—2011年呈上升趋势,但绝对值较低,2012年以后呈现波动变化,表明人海关系处于博弈状态,矛盾仍较为突出。

There is an interactive relationship between mariculture and marine ecological environment.Based on the results of super-efficiency DEA model and Nemero index,this paper analyzed the evolution of the relationship between mariculture and marine ecological environment in Changshan Islands from 2006 to 2018 by the coupled coordination relationship model.The results indicated that:(1) The efficiency of mariculture in Changshan Islands showed an inverted U-shaped change trend,and its development level was still in the stage of extensive development,and needed to be improved in terms of technology application and scale efficiency.(2) With the rapid development of the nearshore aquaculture industry,the marine ecological environmental qualities gradually deteriorated from 2006 to 2013,but improved to a certain extent after 2014.(3) The coupling degree denoted that the relationship between mariculture and marine ecological environment had undergone a transition from antagonistic to highly coupled relationship.The coordination degree showed an upward trend from 2006 to 2011,but fluctuated after 2012 with low absolute value,which indicated that the relationship between human and sea was in a conflict game.