区域水资源供、需协调评价的初步研究

A PRELIMINARY STUDY ON COORDINATION APPRAISAL BETWEEN SUPPLY AND DEMAND OF REGIONAL WATER RESOURCES

水资源的盈、亏状况取决于供、需及协调程度三个方面。而当前水资源评价体系却忽视了对供、需协调程度的评价。本文提出协调系数的概念，就在于客观反映区域水资源系统开发利用的供、需协调程度。协调系数的引入，完善了水资源评价体系，推动了水资源研究的深入发展。

regional water resources system is structured by three parts: nature, society and the relationship of water supply and demand between nature and human society. Similarly, surplus or shortage of regional water resources depends on following three factors corresponding to the three parts: water supply and demand, and the coordination degree between water supply and demand. Clearly, the appraisal system of regional water resources should reflect the three factors impartially. However, in the existing appraisal system, the two factors, water supply and demand, are attached with great improtance, while the third factor, the coordination degree between water supply and demand, is neglected at all. It inevitably intensifies the contradiction between water supply and demand, aggravates the problem of water shortage. In order to get an objective reflection of coordination degree between water supply and demand in the appraisal system of regional water resources, in this paper, a new concept, Coordination Coefficient (C 0), is put forward. Its calculation method is introduced, and a case study is also carried out. C 0 is an indispensable complement for the existing appraisal system of regional water resources. Additionally, its introduction is certainly favorable to the further development of water resources research.