Journal article
Phosphorus movement through soils and groundwater: application of a time-dependent sorption model
Water Science & Technology, Vol.31(9), pp.83-90
1995
Abstract
Pollution of groundwater, wetlands, rivers, estuaries and near shore waters by phosphorus is now fairly common due to run-off from agricultural areas and wastewater discharges. In the application of fertilisers in agriculture it has been observed that sandy soils result in high phosphorus concentrations in the run-off. On the other hand loamy soils result in less phosphorus run-off. Phosphate-phosphorus sorption by soils has been observed to be time dependent. A model has been developed to describe the movement of phosphorus through soils to take into account the processes of convection, dispersion and time-dependent sorption. The model enables prediction of phosphorus breakthrough in a soil column. A comparison is made of predicted breakthrough curves with results obtained using two types of soil: a sandy soil from Australia and a loamy soil from Indonesia. The model has direct application to field situations where phosphate-phosphorus moves vertically downward through the unsaturated zone to the water table, and horizontally through the groundwater aquifer. Parameters of the model can potentially be derived from simple batch sorption experiments.
Details
- Title
- Phosphorus movement through soils and groundwater: application of a time-dependent sorption model
- Authors/Creators
- G. Ho (Author/Creator)S. Notodarmojo (Author/Creator)
- Publication Details
- Water Science & Technology, Vol.31(9), pp.83-90
- Publisher
- Elsevier
- Identifiers
- 991005540860507891
- Copyright
- © 1995 International Association on Water Quality
- Murdoch Affiliation
- School of Environmental Science
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.45 Soil Science
- 3.45.473 Soil Phosphorus Dynamics
- Web Of Science research areas
- Engineering, Environmental
- Environmental Sciences
- Water Resources
- ESI research areas
- Environment/Ecology