无居民海岛资源环境承载力评价--以渤海为例

Evaluation of resource and environment carrying capacity of uninhabited island--A case study of the Bohai Sea

无居民海岛是重要的海洋空间资源。随着海洋经济的快速发展,无居民海岛不合理开发的现象逐渐增多,导致海岛资源约束趋紧、生态环境退化。本文以渤海为例,通过无居民海岛开发强度和生态状况的组合关系,对渤海地区21个县(区、市)无居民海岛资源环境承载力现状进行了评价。评价结果表明:渤海地区有6个县(区、市)无居民海岛资源环境承载力处于超载状态,超载地区在辽宁省、河北省和山东省均有分布,表现出明显的空间分异性。区域无居民海岛资源环境承载力状况与海岛开发强度呈显著相关,说明开发建设活动不可避免地对海岛资源环境造成了负面影响。目前,渤海地区处于超载状态的县(区、市)已经到达28.57%,亟须实施限制性措施,控制开发利用规模,适当开展受损海岛的修复工作,以逐步恢复海岛的生态环境。

Uninhabited island is an important marine space resource.With the rapid development of marine economy,the unreasonable development is increasing,which leads to the tightening of island resource constraints and the degradation of ecological environment.This paper evaluates the current situation of resource and environment carrying capacity of uninhabited island in 21 counties in the Bohai Sea,by using the combination relationship between the development intensity and ecological status.The evaluation results show that there are 6 counties whose resource and environment carrying capacity of uninhabited island is in a state of overload.Overload areas are distributed in Liaoning province,Hebei province and Shandong province,showing obvious spatial differentiation.It is found that there is a significant correlation between the resource and environment carrying capacity and the island development intensity.It shows that the construction activities inevitably have a negative impact on the island resource and environment.At present,the overloaded counties in the Bohai Sea have reached 28.57%.We must implement restrictive measures,control the scale of development,and properly carry out the restoration of damaged islands.