Associate Professor David Campbell
Associate Professor
Qualifications: BSc(Hons), PhD Otago
Personal Website: http://waiber.com
About David
Research Interests
My research contributes to the understanding of how ecosystems function, especially the ways they exchange water, energy, carbon, and greenhouse gases with their atmospheric environment. I have predominantly worked within two groups of ecosystems: Aotearoa’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. Recently, I played a key role in developing a novel technique to measure nitrous oxide emissions from agricultural land at paddock scales. With my colleagues, we developed new methodologies to investigate whole-farm carbon balances under the intensive management of grazed farming systems. In the past few years, my research has focused on GHG emissions from the vast areas of Waikato's drained peatlands used for agriculture. With colleagues, we are advising Government ministries on improvements to the Aotearoa greenhouse gas inventory methods for organic soils.
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.
- Wilson, Clara (2020). The role of fire in shaping vegetation structure and composition in a New Zealand restiad bog.
- 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
Chang, K. -Y., Riley, W. J., Knox, S. H., Jackson, R. B., McNicol, G., Poulter, B., . . . Zona, D. (2021). Substantial hysteresis in emergent temperature sensitivity of global wetland CH4 emissions. Nature Communications, 12(1). doi:10.1038/s41467-021-22452-1
Knox, S. H., Bansal, S., McNicol, G., Schafer, K., Sturtevant, C., Ueyama, M., . . . Jackson, R. B. (2021). Identifying dominant environmental predictors of freshwater wetland methane fluxes across diurnal to seasonal time scales. Global Change Biology. doi:10.1111/gcb.15661
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