Research and Application of 3D GIS Technology on the Delineation and Management of Urban Drinking Water Source Protection Area - A Case Study of the five Reservoirs in Ningbo

摘要

Drinking water is the most important water resourc e,which is closely related to health and quality of life.However,there are so many problems that exist in drinking water,such as the poor quality and management of water.Obviously,the s ecurity of drinking water is threatened.In this paper,accordin g to drinking water protection area delineation principle,GIS-a ssisted three-dimensional simulation model is introduced to del ineate drinking water source protection areas of the five reserv oirs in Ningbo taking various factors in consideration,such a s natural environment,laws,and so on.On this basis,the 3D di splay system of Ningbo drinking water source protection areas is built to effectively promote safety supervision of these zones and ensure the security of the drinking water of the inhabitant s.