基于GIS的地下水位动态相关预测模型

辅助专业人员进行地下水位动态预测,为政府进行地下水资源开发利用和监督管理服务。基于GIS技术,从空间数据库提取水位相关数据系列,利用多元线性回归和逐步回归分析方法,建立地下水位与降水量、开采量、蒸发量之间的回归模型进行数据分析和水位预测,采用克里格插值方法生成水位等值线,实现预测结果的可视化表达。预测评价数据来源于空间数据库,预测结果又以空间数据的形式保存到空间数据库中去,便于进一步利用。模型将地下水位动态相关预测方法与GIS结合起来形成应用型GIS专业模型,可用于单井点或区域地下水位动态预测评价。

The Relevant Forecast Model for Groundwater Regime Based on GIS

This paper helps professional personnel carry out the forecast of groundwater regime and serve the government to carry out the development and utilization of groundwater resource and supervise their management.Based on GIS technology,draw the relevant data of the groundwater table from the space database.By using multi_linear regress and stepwise regress analytical method,set up regression model among groundwater table,precipitation,yield,and evaporation for data analysis and groundwater table forecast.By adopting Kriging value_inserting method,set up the phreatic water contourand realize the visual expression of the forecast results.The forecast database come from the space database,and the forecast results are saved in the space database in the form of space data for further utilization.The model forms the professional GIS model by combining the relevant forecast methods of groundwater regime and GIS method,which can be used to forecast the groundwater regime in the single well or reginal groundwater areas.