基于灰色关联模型的青岛港城关联效应研究

Research on the Relevance Effect of Qingdao Port-city Based on Grey Relational Model

以青岛港和青岛市之间的关联程度作为研究对象,运用灰色关联模型,对青岛市2002～2016年间的社会、经济、环境指标与港口吞吐量指标进行关联度分析,并将其经济关联性与上海、天津等市的经济关联性进行比较。研究发现,港口吞吐量和城市经济指标的关联度基本保持在0.6以上,港口和城市之间普遍存在较强的关联性;从时间维度上看,各港口和城市的关联度在2009年之前上升,之后则逐渐下降,呈现出先增强后减弱的变化趋势;青岛市各污染物排放量指标和港口吞吐量指标之间的关联度较高,港口吞吐量和青岛市的生态环境存在密切联系。

The correlation degree between Qingdao Port and Qingdao city is taken as the research object,and the gray correlation model is used to analyze the correlation between Qingdao city's social、economic and environmental indicators and Qingdao port's throughput indicators from 2002 to 2016,and compare the economic relevance of Qingdao with Shanghai and Tianjinetc.It was found that the correlation between port throughput indicator and urban economic indicators remained above 0.6,so there was a strong correlation between the port and city.In the time aspect,the correlation between the port and city rose before 2009,and then gradually decreased,showing a trend of strengthen first and later weaken;there is a high correlation degree between the pollutant emission index of Qingdao city and the port throughput index of Qingdao port,and the Qingdao's port throughput is closely related to the ecological environment of Qingdao city.