A catchment-scale method to simulating the impact of historical nitrate loading from agricultural land on the nitrate-concentration trends in the sandstone aquifers in the Eden Valley, UK
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- 作者：Lei Wang ; lei.wang@bgs.ac.uk ; Sean P. Burke
- 关键词：Nitrate time-lag ; Unsaturated zone ; Saturated zone ; Groundwater quality ; Catchment scale
- 刊名：Science of The Total Environment
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：579
- 期：Complete
- 页码：133-148
- 全文大小：2554 K
- 卷排序：579
文摘
An approach to modelling groundwater nitrate at the catchment scale is presented. It considers nitrate transport in glacial till and dual-porosity unsaturated zones. The impact of historical nitrate loading on groundwater quality is better understood. The modelled results are valuable for evaluating the nitrate legacy issue. The method is transferable and requires a modest parameterisation.