Abstract
As part of two PhD projects, we installed ion-selective electrodes and passive samplers for monitoring nitrate concentrations in a 7 km 2 catchment and compared the results to grab samples. We also monitored nitrate concentrations at the catchment outlet. We tested the effectiveness of these monitoring approaches to estimate the long-term pattern in concentrations and loads at the catchment outlet. In addition, we built a regression model to predict the short-term variations in nitrate concentration. We used commonly available measurements of precipitation, discharge and groundwater head as explanatory variables. In this paper we present a comparison of different approaches to monitoring, and we discuss the potential of the ion-selective electrodes and passive samplers for practical nitrate monitoring.
Original language | English |
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Title of host publication | Conceptual and Modelling Studies of Integrated Groundwater, Surface Water, and Ecological Systems |
Pages | 194-199 |
Number of pages | 6 |
Volume | 345 |
Publication status | Published - 2011 |
Event | Symposium H01 on Conceptual and Modelling Studies of Integrated Groundwater, Surface Water, and Ecological Systems, Held During the 25th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2011 - Melbourne, VIC, Australia Duration: 28 Jun 2011 → 7 Jul 2011 |
Conference
Conference | Symposium H01 on Conceptual and Modelling Studies of Integrated Groundwater, Surface Water, and Ecological Systems, Held During the 25th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2011 |
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Country/Territory | Australia |
City | Melbourne, VIC |
Period | 28/06/11 → 7/07/11 |
Keywords
- Catchment hydrology
- Groundwater protection
- Ion-selective electrodes
- Nitrate monitoring strategies
- Nutrient leaching
- Nutrient loads
- Passive sampling
- Water quality