PhD Scholar

Nutrient generation in Australian catchments: land use and management factors affecting water quality

E-mail: john.drewry@anu.edu.au

Within catchments the loss of sediment and nutrients is known to decrease the quality of surface waters. While working with Lachlan Newham, Richard Greene, Barry Croke and Tony Jakeman, my research is focusing on improved catchment scale model simulation of impacts of current and future land management in the Moruya and Tuross coastal catchments in NSW. To assess loads and enable management of sustainable practices within these catchments, the catchment model (CatchMODS) is linked with a field data program, as there is little information on the quality of storm water entering the estuaries. Previously, I worked as a soil scientist with AgResearch Ltd in New Zealand, researching the effects of sheep, deer and dairy cattle treading on soil physical properties, and agricultural related environmental issues.

Recent Publications

Drewry, J. J., Newham, L. T. H., Greene, R. S. B., Jakeman, A. J., Croke, B. F.W. 2006. A review of nitrogen and phosphorus export to waterways: context for catchment modelling. Marine and Freshwater Research 57: 757-774.

Drewry, J. J. 2006. Natural recovery of soil physical properties from treading damage of pastoral soils in New Zealand and Australia: a review. Agriculture, Ecosystems and Environment 114: 159-169.