The Water Distribution Model Application Based on Spatial Information Technology
LEI Ying, JIANG Dong, YANG Xiaohuan et al.

1 中国科学院地理科学与资源研究所，北京 100101； 2 中国水利水电科学研究院水资源研究所，北京 100044  ; 3 中国科学院研究生院，北京 100049；

Abstract

This paper aims at developing a water resource spatial distribution model which adopts the linear weighted method, based on spatial information technology. Three nature-humanity mixed factors were introduced as the parameters of the model to spatialize the statistical data of total water resources quantity: slope, the distance to the river and land cover. Slope would change water storage capacity. Distance is used to represent the water utilization capacity. While different land covers would be corresponding to various infiltration, storage and evaporation characteristics. The Analytic Hierarchy Process method (AHP) is adopted to determine the adjusted weight which is subsequently used to calculate the distribution of each factor. Finally, the sub-basin water resources quantity, which is an average of the sum value in the past 45 years(1956~2000) were spatialized via those factors by GIS spatial analyzing function.
Keywords: water resource; spatial distribution model; sustainable development; capital region