基于GeoMedia的内蒙古通辽市奈曼旗地表水资源评价

Evaluating the Surface Water Resources in Naiman Banner of Tongliao City,Inner Mongolia Based on GeoMedia Environment

利用GeoMedia技术通过收集基础图件和专业资料,建立数据库与工作空间,经过图像配准后形成区域水资源评价系统.根据通辽市奈曼旗地区的降水、蒸发、干旱指数等指标确定了该地区的自产地表水量、入境客水量、地表水的利用及损失情况,应用GeoMedia系统对奈曼旗的地表水资源总量和可利用量做了评价.

Based on the basic map and special literature,the database and work place were built by the GeoMedia technique.A system of regional water resource assessment was implemented after the images were registered.According to the precipitation,evaporation,and drought index of Naiman Banner of Tongliao city,the self-produced surface water resources,surface water resource flows in and out,utilization and loss of water resources were calculated.Surface water resource gross amount and usable amount were estimated reasonably and exactly by the GeoMedia system.