汤洁, 卞建民, 林年丰, 杨建强. GIS-PModflow联合系统在松嫩平原西部潜水环境预警中的应用[J]. 水科学进展, 2006, 17(4): 483-489.
引用本文: 汤洁, 卞建民, 林年丰, 杨建强. GIS-PModflow联合系统在松嫩平原西部潜水环境预警中的应用[J]. 水科学进展, 2006, 17(4): 483-489.
TANG Jie, BIAN Jian-min, LIN Nian-feng, YANG Jian-qiang. Application of integrated system of GIS-PModflow to water environment early warning in west of Songnen plain[J]. Advances in Water Science, 2006, 17(4): 483-489.
Citation: TANG Jie, BIAN Jian-min, LIN Nian-feng, YANG Jian-qiang. Application of integrated system of GIS-PModflow to water environment early warning in west of Songnen plain[J]. Advances in Water Science, 2006, 17(4): 483-489.

GIS-PModflow联合系统在松嫩平原西部潜水环境预警中的应用

Application of integrated system of GIS-PModflow to water environment early warning in west of Songnen plain

  • 摘要: 针对松嫩平原西部地下水潜水位变化对环境产生影响的现状,运用GIS-PModflow联合系统确定了地下水环境预警警戒线,采用以不至于发生土壤盐碱化的潜水临界水位作为上警戒线值,以潜水开采极限深度作为下警戒线值。在对系统模型概化的基础上,进行了潜水位的数值模拟和预报。利用GIS空间分析方法对图像数据进行栅格叠加和属性判断,通过对预报水位与警戒水位对比,进行水环境预警。结果表明,研究区2015年的警情较1999年增加,且以灌溉后潜水位上升引起的土壤次生盐渍化的警情为主。

     

    Abstract: With the effect of the groundwater table changes on the environment, the coupling technology with GIS and PModflow is used to define the threshold of the groundwater environment early warning in the paper.By means of this method, the phreatic water table without salinization is defined as the maximum limit, while the pumping limit of the phreatic water as the minimum limit.On the basis of the system model generalization, the water table is simulated and predicted The spatial analysis of GIS is used for overlaying the grid and the attribute judgment.The water environment precaut ion compares the predicted water with the threshold water table.Results show that the precaution state occurs more in 2015 than 1999, and mainly with the secondary salinization due to the phreatic water table uplift.

     

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