Professor Troy Baisden

Troy Baisden

Team Leader - Environmental Sciences

Qualifications: PhD 2000 University of California, Berkeley

About Troy

Troy Baisden specialises in understanding the flow of nutrients, water and carbon through terrestrial ecosystems and resulting impacts in freshwater. He spent the last decade at GNS Science’s National Isotope Centre, ensuring New Zealand has access to challenging isotope techniques combined with the ‘big-picture’ understanding required to apply them to the nation’s most important environmental issues. This has involved sophisticated instrumental techniques, yet the most crucial understanding often evolves from large scale environmental and economic data, viewed in a policy, social and cultural context. His experience cuts across major environmental issues, starting with acid rain in the United States, and bringing parallels from climate change research to managing water quality in a catchment context.

Troy wants to see science enable innovative approaches to water management that create flexibility, efficiency and resilience. He has an interest in analytics and science policy as they relate to addressing global change issues. He holds a PhD from the Department of Environmental Science, Policy and Management at the University of California, Berkeley. He is also an Investigator in Te Pūnaha Matatini, the Centre of Research Excellence on networks and complexity. He now leads the Lakes Ecosystem Research New Zealand (LERNZ) group.

Troy makes an effort to make the process of putting the pieces of environmental science accessible – check out his articles in The Conversation, and the resources below.

You can follow Troy's social media channels, Facebook, Twitter, and his blogs Land2Water and Data Environment.

Papers Taught

Research Supervised


  • Dare, James  (in progress). Using low-cost sensor technology to understand contaminant signatures and flow pathways in river systems.
  • Yulianti, Meti (in progress). Development of novel measurement to examine soil erosion and sediment processes on freshwater ecosystems.


  • Lyon, Victoria (in progress).
  • Kaelin, Nicola (in progress).
  • Eyberg, Claire (2020). Variation in nitrate sources and delivery in space and time within the 389 ha Lake Okaro catchment.


  • Chen, Teng Chris (in progress).
  • Sanson, Courtney (in progress).

Recent Publications

  • Stoner, S. W., Hoyt, A. M., Trumbore, S., Sierra, C. A., Schrumpf, M., Doetterl, S., . . . Schipper, L. A. (2021). Soil organic matter turnover rates increase to match increased inputs in grazed grasslands. Biogeochemistry. doi:10.1007/s10533-021-00838-z

  • Rissmann, C. W. F., Pearson, L. K., Martin, A. P., Leybourne, M. I., Baisden, W. T., Clough, T. J., . . . Webster Brown, J. G. (2021). A hydrochemically guided landscape-based classification for water quality: a case study application of process-attribute mapping (PoAM) at a national scale. ESSOAr. doi:10.1002/essoar.10507536.1

  • Rayner, S., Clough, T. J., Baisden, T., & Moir, J. (2020). Can ruminant urine-N rate and plants affect nitrate leaching and its isotopic composition?. New Zealand Journal of Agricultural Research, 63(1), 87-105. doi:10.1080/00288233.2019.1648302

  • Lee, J. E., Brook, E. J., Bertler, N. A. N., Buizert, C., Baisden, T., Blunier, T., . . . Winstrup, M. (2020). An 83 000-year-old ice core from Roosevelt Island, Ross Sea, Antarctica. Climate of the Past, 16(5), 1691-1713. doi:10.5194/cp-16-1691-2020

Find more research publications by Troy Baisden


Agriculture and Biosystems; Climate; Environment; Environment Issues; Environmental Change; Environmental Impacts; Environmental Science and Technology; Geochemical Environment; Globalisation; Knowledge Management; Natural Resources; Radiocarbon Dating; Remote Sensing; Science; Statistics; Sustainability

Biogeochemistry; Ecosystem Science; Freshwater; Soil; Catchment; Lake; LERNZ; Nitrogen; Isotopes; Tracers

Contact Details

Email: [email protected]
Room: R.2.08
Phone: +64 7 838 4055