期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 447, 期 -, 页码 32-45出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2013.01.011
关键词
Groundwater vulnerability; Climate change; Land use change; Biofuels; Nitrate; North Dakota
资金
- School of Natural Resources
- Center for Advanced Land Management Information Technologies, University of Nebraska-Lincoln (UNL)
Modeling groundwater vulnerability to pollution is critical for implementing programs to protect groundwater quality. Most groundwater vulnerability modeling has been based on current hydrogeology and land use conditions. However, groundwater vulnerability is strongly dependent on factors such as depth-to-water, recharge and land use conditions that may change in response to future changes in climate and/or socio-economic conditions. In this research, a modeling framework, which employs three sets of models linked within a geographic information system (GIS) environment, was used to evaluate groundwater pollution risks under future climate and land use changes in North Dakota. The results showed that areas with high vulnerability will expand northward and/or northwestward in Eastern North Dakota under different scenarios. GIS-based models that account for future changes in climate and land use can help decision-makers identify potential future threats to groundwater quality and take early steps to protect this critical resource. (C) 2013 Elsevier B.V. All rights reserved.
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