Secondly,on the basis of statistic data,it analyses the difference of logistics development among the three core regions of Yangtse River Delta,Pearl River Delta and Bohai Sea Region.

• 地理、历史、社会等三个要素是构成“物流业生态环境”的三大因素,环渤海地区物流业发展相对滞后,就是这些因素在起着作用。