Qualifications: BSc(Hons), PhD Otago

Personal Website: http://waiber.com

Research Interests

My research contributes to the understanding of how ecosystems function, especially the way they exchange water, energy, carbon, and greenhouse gases with their atmospheric environment. I have predominantly worked within two groups of ecosystems: N.Z.’s globally distinctive peat wetlands; and our intensively managed agricultural systems. In the 1990’s I was an early adopter of micrometeorological methods for investigating the water and energy balances, then CO₂ and CH₄ exchanges, of wetlands. With colleagues, I then applied these methodologies to investigate whole-farm carbon balances as a way of understanding the impact of the intensive management of grazed farming systems on soil carbon stocks. We now use these approaches to study ecosystem-scale greenhouse gas exchanges while still focussing on the sensitivity of ecosystems (whether natural or managed) to disturbance regimes, climate extremes (e.g. drought), and environmental change.

Research Supervised

PhD

• Ratcliffe, Joshua (2020). Carbon sequestration and biogeochemical cycling in damaged and pristine peatlands.
• Goodrich, Jordan (2015). Magnitude and controls on the net carbon balance of a New Zealand bog.
• Kalaugher, Electra (2015). Adaptation of New Zealand dairy farms to climate change: An integrated, farm-level analysis.
• Rutledge-Jonker, Susanna (2010). Carbon dioxide losses from terrestrial organic matter resulting from photodegradation and microbial respiration.

MSc(Research)

• Glover-Clark, Georgia (2020). Spatiotemporal variability of hydrology in Moanatuatua drained peatland, and its influence on CO₂ emissions and surface oscillations.
• Douglas, Callum (2019). Ecohydrological characterisation of Otakairangi Wetland, Northland.

MSc

• Keyte Beattie, Alexandra (2014). The role of Empodisma robustum litter in CO₂ exchange at Kopuatai bog.
• Sturgeon, Catherine (2013). Assessing dissolved organic carbon export from Kopuatai bog, New Zealand.
• Blyth, James (2011). Ecohydrological characterisation of Whangamarino wetland.

MEnvSc

• Hamill, Jacob (2020). Methane Emission hotspots from a drained peat soil dairy grazing.
• Daws, Constance (2019). Factors contributing to the unnaturally low water table of Moanatuatua Scientific Reserve, Waikato, New Zealand.

BSc(Hons)

• Elliott, Sarah (2018). The impact of drainage design on the water table regime and soil moisture content in Waikato agricultural peat soil.

Teaching Commitments

Recent Publications

• Campbell, D. I., Glover-Clark, G. L., Goodrich, J. P., Morcom, C. P., Schipper, L. A., & Wall, A. M. (2021). Large differences in CO2 emissions from two dairy farms on a drained peatland driven by contrasting respiration rates during seasonal dry conditions. Science of the Total Environment, 760. doi:10.1016/j.scitotenv.2020.143410

• Goodrich, J. P., Wall, A. M., Campbell, D. I., Fletcher, D., Wecking, A. R., & Schipper, L. A. (2021). Improved gap filling approach and uncertainty estimation for eddy covariance N<inf>2</inf>O fluxes. Agricultural and Forest Meteorology, 297. doi:10.1016/j.agrformet.2020.108280

• Ratcliffe, J. L., Lowe, D. J., Schipper, L. A., Gehrels, M. J., French, A. D., & Campbell, D. I. (2020). Rapid carbon accumulation in a peatland following Late Holocene tephra deposition, New Zealand. Quaternary Science Reviews, 246(article 106505). doi:10.1016/j.quascirev.2020.106505 Open Access version: https://hdl.handle.net/10289/13810

• Liáng, L. L., Kirschbaum, M. U. F., Giltrap, D. L., Wall, A. M., & Campbell, D. I. (2020). Modelling the effects of pasture renewal on the carbon balance of grazed pastures. Science of the Total Environment, 715, 12 pages. doi:10.1016/j.scitotenv.2020.136917

View All research publications by David Campbell

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