John Hunt

Senior Researcher

Land Use & Ecosystems

Qualifications

Lincoln
PhD Plant Physiology
1997

Otago
BSc (Hons) Ecology
1979

Publications

Gray CW, McDowell RW, Graham SL, Hunt JE, Laubach J, Rogers GND, Carrick S, Whitehead D Early access Jul 2020. Phosphorus transport in subsurface flow from a stony soil under irrigated and non-irrigated lucerne. New Zealand Journal of Agricultural Research. WOS:000555114000001 https://doi.org/10.1080/00288233.2020.1792514

Liang LL, Kirschbaum MUF, Giltrap DL, Hunt JE, Laubach J 2021. Could patterns of animal behaviour cause the observed differences in soil carbon between adjacent irrigated and unirrigated pastures? Science of the Total Environment 772. WOS:000628753700049 https://doi.org/10.1016/j.scitotenv.2021.145033

Moinet GYK, Moinet M, Hunt JE, Rumpel C, Chabbi A, Millard P 2020. Temperature sensitivity of decomposition decreases with increasing soil organic matter stability. Science of the Total Environment 704: 135460. WOS:000504672800137 https://doi.org/10.1016/j.scitotenv.2019.135460

Giltrap DL, Kirschbaum MUF, Laubach J, Hunt JE 2020. The effects of irrigation on carbon balance in an irrigated grazed pasture system in New Zealand. Agricultural Systems 182. WOS:000539094200022 https://doi.org/10.1016/j.agsy.2020.102851

Cleverly J, Vote C, Isaac P, Ewenz C, Harahap M, Beringer J, Campbell DI, Daly E, Eamus D, He L, Hunt J, Grace P, Hutley LB, Laubach J, McCaskill M, Rowlings D, Jonker SR, Schipper LA, Schroder I, Teodosio B, Yu Q, Ward PR, Walker JP, Webb JA, Grover SPP 2020. Carbon, water and energy fluxes in agricultural systems of Australia and New Zealand. Agricultural and Forest Meteorology 287. <Go to ISI>://WOS:000531095900007

Carmona CR, Clough TJ, McNally SR, Beare MH, Tregurtha CS, Hunt JE 2020. Seasonal irrigation affects the partitioning of new photosynthate carbon in soil. Soil Biology & Biochemistry 143: 107751. WOS:000523634500017 https://doi.org/10.1016/j.soilbio.2020.107751

Kirschbaum MUF, Giltrap DL, McNally SR, Liang LL, Hedley CB, Moinet GYK, Blaschek M, Beare MH, Theng BKG, Hunt JE, Whitehead D 2020. Estimating the mineral surface area of soils by measured water adsorption. Adjusting for the confounding effect of water adsorption by soil organic carbon. European Journal of Soil Science 71(3): 382-391. WOS:000491867500001 https://doi.org/10.1111/ejss.12892

Waller LP, Allen WJ, Barratt BIP, Condron LM, Franca FM, Hunt JE, Koele N, Orwin KH, Steel GS, Tylianakis JM, Wakelin SA, Dickie IA 2020. Biotic interactions drive ecosystem responses to exotic plant invaders. Science 368(6494): 967-972. WOS:000538332600041 https://doi.org/10.1126/science.aba2225

Graham SL, Laubach J, Hunt JE, Eger A, Carrick S, Whitehead D 2019. Predicting soil water balance for irrigated and non-irrigated lucerne on stony, alluvial soils. Agricultural Water Management 226. WOS:000525274200015 https://doi.org/10.1016/j.agwat.2019.105790

Moinet GYK, Midwood AJ, Hunt JE, Rumpel C, Millard P, Chabbi A 2019. Grassland Management Influences the Response of Soil Respiration to Drought. Agronomy-Basel 9(3). WOS:000464378300004 https://doi.org/10.3390/agronomy9030124

Yang F, Zhang Q, Hunt JE, Zhou J, Sha S, Li Y, Yang Z, Qi Y, Wang X 2019. Biophysical regulation of evapotranspiration in semiarid croplands. Journal of Soil and Water Conservation 74(3): 309-318. WOS:000467558600013 https://doi.org/10.2489/jswc.74.3.309

Laubach J, Hunt JE, Graham SL, Buxton RP, Rogers GND, Mudge PL, Carrick S, Whitehead D 2019. Irrigation increases forage production of newly established lucerne but enhances net ecosystem carbon losses. Science of the Total Environment 689: 921-936. WOS:000482379400089 https://doi.org/10.1016/j.scitotenv.2019.06.407

Laubach J, Hunt JE 2018. Greenhouse-gas budgets for irrigated dairy pasture and a winter-forage kale crop. Agricultural and Forest Meteorology 258: 117-134. WOS:000436218600014 https://doi.org/10.1016/j.agrformet.2017.04.013

Moinet GYK, Hunt JE, Kirschbaum MUF, Morcom CP, Midwood AJ, Millard P 2018. The temperature sensitivity of soil organic matter decomposition is constrained by microbial access to substrates. Soil Biology & Biochemistry 116: 333-339. WOS:000419417900036 https://doi.org/10.1016/j.soilbio.2017.10.031

Moinet GYK, Midwood AJ, Hunt JE, Whitehead D, Hannam KD, Jenkins M, Brewer MJ, Adams MA, Millard P 2018. Estimates of rhizosphere priming effects are affected by soil disturbance. Geoderma 313: 1-6. WOS:000424179800001 https://doi.org/10.1016/j.geoderma.2017.10.027

Owens J, Clough TJ, Laubach J, Hunt JE, Venterea RT 2017. Nitrous oxide fluxes and soil oxygen dynamics of soil treated with cow urine. Soil Science Society of America Journal 81(2): 289–298. https://doi.org/10.2136/sssaj2016.09.0277

Moinet GYK, Cieraad E, Hunt JE, Turnbull MH, Whitehead D 2016. Phytomass index improves estimates of net ecosystem carbon dioxide exchange in intensively grazed grassland. Agriculture, Ecosystems & Environment 233: 298–307. https://doi.org/10.1016/j.agee.2016.09.027

Owens J, Clough TJ, Laubach J, Hunt JE, Venterea RT, Phillips RL 2016. Nitrous oxide fluxes, soil oxygen, and denitrification potential of urine- and non-urine-treated soil under different irrigation frequencies. Journal of Environmental Quality 45(4): 1169–1177. https://doi.org/10.2134/jeq2015.10.0516

Hunt JE, Laubach J, Barthel M, Fraser A, Phillips RL 2016. Carbon budgets for an irrigated intensively grazed dairy pasture and an unirrigated winter-grazed pasture. Biogeosciences 13: 2927–2944. https://doi.org/10.5194/bg-13-2927-2016

Moinet GYK, Cieraad E, Hunt JE, Fraser A, Turnbull MH, Whitehead D 2016. Soil heterotrophic respiration is insensitive to changes in soil water content but related to microbial access to organic matter. Geoderma 274: 68–78. https://doi.org/10.1016/j.geoderma.2016.03.027

Laubach J, Barthel M, Fraser A, Hunt JE, Griffith DWT 2016. Combining two complementary micrometeorological methods to measure CH4 and N2O fluxes over pasture. Biogeosciences 13(4): 1309–1327. https://doi.org/10.5194/bg-13-1309-2016

Moinet GYK, Cieraad E, Rogers GND, Hunt JE, Millard P, Turnbull MH, Whitehead D 2016. Addition of nitrogen fertiliser increases net ecosystem carbon dioxide uptake and the loss of soil organic carbon in grassland growing in mesocosms. Geoderma 266: 75–83. https://doi.org/10.1016/j.geoderma.2015.12.004

Barthel M, Cieraad E, Zakharova A, Hunt JE 2014. Sudden cold temperature delays plant carbon transport and shifts allocation from growth to respiratory demand. Biogeosciences 11(5): 1425–1433. https://doi.org/10.5194/bg-11-1425-2014

Graham SL, Hunt JE, Millard P, McSeveny T, Tylianakis JM, Whitehead D 2014. Effects of soil warming and nitrogen addition on soil respiration in a New Zealand tussock grassland. PLOS ONE 9(3): e91204. https://doi.org/10.1371/journal.pone.0091204

Graham S, Hunt J, McSeveny T, Millard P, Tylianakis J, Whitehead D 2011. [Abstract] Effects of soil warming and nitrogen fertilisation on net carbon balance of a tussock grassland. Proceedings: 2011 Joint Annual Conference of the New Zealand Ecological Society (NZES) and New Zealand Society of Plant Biology (NZSPB): "Ecology in the Heartland", Rotorua, N.Z., 28 August to 1 September 2011. http://www.newzealandecology.org/sites/all/files/Ecology_in_the_Heartland_2011_Proceedings_web.pdf

Yang F, Zhou G, Hunt JE, Zhang F 2011. Biophysical regulation of net ecosystem carbon dioxide exchange over a temperate desert steppe in Inner Mongolia, China. Agriculture, Ecosystems & Environment 142(3–4): 318–328. https://doi.org/10.1016/j.agee.2011.05.032

Uchida Y, Clough TJ, Kelliher FM, Hunt JE, Sherlock RR 2011. Effects of bovine urine, plants and temperature on N(2)O and CO(2) emissions from a sub-tropical soil. Plant and Soil 345(1-2): 171-186. <Go to ISI>://CCC:000292999700013

Barbour MM, Hunt JE, Kodama N, Laubach J, McSeveny TM, Rogers GND, Tcherkez G, Wingate L 2011. Rapid changes in delta 13C of ecosystem-respired CO(2) after sunset are consistent with transient 13C enrichment of leaf respired CO(2). New Phytologist 190(4): 990-1002. WOS:000290449600019 https://doi.org/10.1111/j.1469-8137.2010.03635.x

Dickie IA, Yeates GW, St. John MG, Stevenson BA, Scott JT, Rillig MC, Peltzer DA, Orwin KH, Kirschbaum MUF, Hunt JE, Burrows LE, Barbour MM, Aislabie J 2011. Ecosystem service and biodiversity trade-offs in two woody successions. Journal of applied ecology 48(4): 926-934. https://doi.org/10.1111/j.1365-2664.2011.01980.x

Uchida Y, Clough T, Kelliher FM, Hunt J, Sherlock R 2011. Effects of bovine urine, plants and temperature on N2O and CO2 emissions from a sub-tropical soil. Plant and Soil 345(1-2): 171-186. https://doi.org/10.1007/s11104-011-0769-z

Uchida Y, Hunt JE, Barbour MM, Clough TJ, Kelliher FM, Sherlock RR 2010. Soil properties and presence of plants affect the temperature sensitivity of carbon dioxide production by soils. Plant and soil 337(1-2): 375-387. CCC:000284159900027

Powers HH, Hunt JE, Hanson DT, McDowell NG 2010. A dynamic soil chamber system coupled with a tunable diode laser for online measurements of delta C-13, delta O-18, and efflux rate of soil-respired CO2. Rapid Communications in Mass Spectrometry 24(3): 243-253. ISI:000274371000001 https://doi.org/10.1002/rcm.4380