长江南京以下沿江港口对12.5m深水航道的效益响应

将长江南京以下9个规模以上沿江港口作为12.5m深水航道的受益对象,利用2009—2017年港口吞吐量资料分析评价12.5m深水航道开通对长江南京以下沿线港口的影响及实际效益。结果表明,12.5m深水航道开通以来沿江港口货物总吞吐量整体呈平稳增长态势,2016年初通至南京后,货物总吞吐量年增长率达到8%;2017年南京以下主要港口完成的货物总吞吐量(24.25亿t)是2009年深水航道开通前的1.8倍;深水航道开通后集装箱吞吐量涨幅最明显,散杂货吞吐量占比则较开通前略有下降;12.5m深水航道开通8年来,南京以下沿江港口经济效益整体呈平稳增长态势,2017年产生的港口经济效益(13.4亿元)比2010年增长近60%。未来随着航道、船舶以及沿江港口码头等条件的持续改善,12.5m深水航道的综合效益还将进一步凸显。

Benefit response of ports along the Yangtze River below Nanjing to 12.5 m deepwater navigation channel

Taking 9 ports above designated size below Nanjing of the Yangtze River as beneficiaries of the 12.5 m deepwater navigation channel,this paper analyzes and evaluates the impact and practical benefits of the 12.5 m deepwater navigation channel on ports along the Yangtze River below Nanjing by the data of port throughput from 2009 to 2017.The results show that the total cargo throughput of ports along the Yangtze River increases steadily as a whole since the opening of the 12.5 m deepwater navigation channel,and the annual growth rate of cargo throughput increases 8% when the deepwater navigation channel first opens to Nanjing in 2016.The total cargo throughput of the major ports below Nanjing in 2017 (2.425 billion tons) is 1.8 times that of the deepwater navigation channel before its opening in 2009.The increasing extent of the container throughput is the most obvious after the opening of the deepwater navigation channel,but the proportion of bulk cargo throughput has a slight decline compared with that of before opening.The economic benefit of ports along the Yangtze River below Nanjing increases steadily for 8 years of opening.The economic benefit of ports along the Yangtze River generated in 2017 (1.34 billion yuan) is nearly 60% higher than that in 2010.With the continuous improvement of conditions for channel,ships and ports or wharfs along the Yangtze River in the future,the comprehensive benefits of the 12.5 m deepwater navigation channel below Nanjing of the Yangtze River will be further highlighted.