物流量的内涵分析和计算方法
The Connotation Analysis and Calculation of Logistics Volume

物流量作为物流学科中的一个重要概念，对于区域物流总量预测、物流规模的核定和物流战略的制定都具有重要意义。但现在国内对于物流量的定义和计算方法都没有一个统一认定，造成了概念混淆不清，给实践带来了困难。本文通过对物流量的概念进行合理界定，对其内涵进行深入分析，认为物流量是物流作业量的总和，但不是作业量的简单叠加，而应当是一个多维向量组，向量组的模代表了物流规模，向量组的取值代表了物流结构。在此基础上得到物流量的计算一般公式，再综合考虑到实际计算的难点给出简化的计算方法，以期在物流量的理论研究中做出有益的探索。
As an important concept in the logistics disciplines, Logistics Volume is significant to the forecast of regional logistics quantity, the ratification of the logistics scale and the constitution of logistics strategy. In previous research, there was no unified definition and calculation method of logistics volume, which brought obscures to the conception and difficulties in practice. This paper gave reasonable definition to logistics volume, and made deep analysis of its connotation, considering logistics volume as the summation of the quantity of logistics operation, but not the simple superposition of the operation quantity. Logistics volume was defined as a multidimensional vector group, and the module of the vector group stands for the logistics scale while the value stands for logistics structure. On the base of these definitions, a general formula for the calculation of logistics volume was obtained, and a simplified calculation method was further derived upon reasonable deletion of complications in actual computations. The purpose of this research is to carry out useful explorations and to obtain helpful results and conclusions in the theoretical research of Logistics Volume.