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通过收集互联网免费资源(如数字高程模型、土地利用图)和实地考察资料(如灌溉排水图、作物数据、土壤数据以及用水部门历年水资源利用数据等数据)进行数字化处理,采用1 km×1 km的小网格为单元,建立了以日为时间步长的基于GIS的流域水资源平衡模型。模型可以动态模拟地面水,土壤水和地下水的流动及平衡并可用ArcView实现可视化。模型对汾河流域太原盆地水平衡时空变化模拟结果合理。该模型可以为有效开发利用水资源提供参考并可用于预测流域水资源动态变化。
Digitized by collecting free internet resources (eg, digital elevation models, land use maps) and fieldwork data (eg irrigation drains, crop data, soil data, and water use data from the water sector), using 1 km × 1 km small grid as a unit, the establishment of a daily time-step based on GIS-based basin water resources balance model. The model dynamically simulates the flow and balance of surface, soil and groundwater and can be visualized with ArcView. The model is reasonable for the temporal and spatial variation of water balance in Taiyuan basin of Fen River basin. The model can provide a reference for the effective development and utilization of water resources and can be used to predict the dynamic changes of water resources in the basin.