天津市海洋空间资源承载力定量研究

The quantitative research on carrying capacity of marine spatial resources in Tianjin

为了研究近20年天津市海洋空间资源承载力状况,采用因子分析法对海洋空间资源承载力的相关指标进行筛选并开展定量评价.以2001年为海洋空间资源承载力评价基准年,采用自然间断点法对评价结果进行分级.结果显示,近20年天津市海洋空间资源承载力指数呈降低趋势,2001—2004年天津市海洋空间资源承载力水平为“高”,2005—2008年承载力水平降为“较高”,2009—2011年承载力水平为“一般”,2012年以后承载力处于“低”或“较低”水平.

In order to research the carrying capacity of marine spatial resources in Tianjin in the past 20 years,the factor analysis method was used to screen the relevant indicators of the carrying capacity of marine spatial resources and carry out quantitative evaluation.Year of 2001 was selected as the benchmark year and the evaluation results were graded by natural breaks methodology.The results showed that the carrying capacity index of marine spatial resource in Tianjin showed a downward trend all through the past 20 years.From 2001 to 2004,the carrying capacity level was“high”;from 2005 to 2008,it was“higher”;from 2009 to 2011,the level was“average”;since 2012,it could only reach“low”and“lower”.