Bsc Civil Engineering; MSc Environmental Engineering; MSc Limnology and Wetland Econolgy
Contact details for Ms Alexandra Garzón a.garzon@griffith.edu.au
Thesis
Implications of gully development and rehabilitation on nitrogen fluxes from headwater catchments in Southeast Queensland
Description
While implications of gully erosion for catchment sediment budgets have been widely examined, implications for nitrogen processing and fluxes remain an open question. Nitrogen is of great importance for SEQ waterways because it is the main nutrient controlling algal primary production in most of its freshwater and marine environments. It is recognized that headwater catchments have a major role in controlling how much nitrogen is exported downstream. My PhD research will study the implications of upper catchment degradation due to gully erosion and the effects of gully stabilization/rehabilitation on nitrogen fluxes exported downstream and on major processes occurring within headwater catchments.
Supervisors
- Professor Jon Olley
- Professor Stuart Bunn
Research Expertise
- Freshwater biogeochemistry
- Treatment wetlands
- Wetland restoration
Publications
- Garzón, A., 2009. Hydrogeomorphological rehabilitation of Bogotá wetlands. In: Memories of the I Colombian Congress in Ecological restoration. Bogotá, July 2009.
- Garzón, A., Lara, J. A., Saavedra, L. J., 2008. Treatment wetland use to restore protected wetlands in the city of Bogotá. In: Memories of the 11th International Conference on Wetland Systems for Water pollution Control, International Water Association. Ujjain – India, November, 2008.
- Garzón, A., 2008. Hydrogeomorphological rehabilitation of Techovita Wetland. In: Memories of the I National Congress on Colombian Lagoons and Ciénagas. Medellín – Colombia, September, 2008. ISBN: 978-958-44-3967-3
- Garzón, A., 2008. Bogotá wetlands and their function in the improvement of urban water quality. In: Memories of the International Congress in Sustainable Water Management (Tecspar – Alfa Europeaid Cooperation Office). Medellín – Colombia, July, 2008. ISBN: 978-958-44-3709-9
- Cuellar, F., Garzón, A., Villegas, P., 2008. Considerations in determining environmental flows for lotic and lentic ecosystems. In: Memories of the XVIII National Seminar in Hydraulics and Hydrology. Bogotá – Colombia, May, 2008.
- Lara, J., Garzón, A., 2006. Redox potential evaluation in a subsurface flow constructed wetland. In: Memories of the 50th Congress of the Colombian Association of Sanitary and Environmental Engineering, Santa Marta – Colombia, September, 2006. ISBN: 958-964-54-7-X
- Giraldo, E., Garzón, A., 2002. The potential for Water Hyacinth to improve the quality of Bogotá River water in the Muña Reservoir: Comparison with the performance of waste stabilisation ponds. Water Science and Technology (Journal of the International Association on Water Quality IAWQ), 45: 103-110.
- Giraldo, E., Garzón, A., 2002. Compartmental model for organic matter digestion in facultative ponds. Water Science and Technology (Journal of the International Association on Water Quality IAWQ), 45: 25-32.