Abstract: With the development of the port group, more and more attentions have been paid to berth sharing resources within the port group on the premise of reducing environmental pollution. In order to develop an effective berth sharing scheme for port group, based on the analysis of the structure of port group economy system and the causal feedback, the method of system dynamics (SD) was adopted to divide the system into three subsystems: port group economy, environmental pollution and ports. And then a simulation model of the shared berths in port group was established. Taking Liaoning port group as an example, the simulation was carried out to compare and analyze the environment pollution status of the port group under non-shared berth mode and multiple shared berth modes. The simulation results show that, according to the through capacity of each port in the port group and the proportion of domestic and foreign trade goods, setting a reasonable proportion of the shared berths for each port can effectively reduce the final amount of pollution in the port group and realize the green economic growth of the port group.

Key words: harbor passage, port group, shared berth, system dynamics, simulation model, green growth

摘要： 随着港口群的发展，在减少环境污染的前提下，共享群内泊位资源已经引起了越来越多的关注。为制定有效的港口群共享泊位方案，在分析港口群经济系统结构和因果反馈关系的基础上，运用系统动力学方法(SD)，将该系统分为港口群经济、环境污染及各港口3个子系统，并建立港口群共享泊位仿真模型；以辽宁港口群为例进行模拟仿真，对比分析非共享泊位模式与多种共享泊位模式下，港口群的环境污染状况。研究结果表明：根据港口群内各港口的通过能力与内外贸货物比例，合理设置各港口泊位共享比例的泊位服务模式，能有效减少港口群的最终污染量，实现港口群经济绿色增长。

关键词: 港口航道, 港口群, 共享泊位, 系统动力学, 仿真模型, 绿色增长