Jane Hawkins

Name	Jane Hawkins
Job title	Senior Scientific Specialist - Biogeochemist
Email address	jane.hawkins@rothamsted.ac.uk
Department	Net Zero and Resilient Farming
Research cluster	SAS-NW: Environment Systems and Modelling
ORCID	https://orcid.org/0000-0002-7072-4018
Preferred citation	Hawkins, J. M. B.
Office	North Wyke

View profile

Research outputs

High resolution flow datasets for surface runoff, surface lateral runoff and drainage pathways from 1 ha sized hydrologically isolated plots.

Hawkins, J. M. B. 2023. High resolution flow datasets for surface runoff, surface lateral runoff and drainage pathways from 1 ha sized hydrologically isolated plots. Rothamsted Research. https://doi.org/10.23637/rothamsted.98y67

The North Wyke Farm Platform: Fine Resolution (15-Minute) Hydrology and Water Quality Data

Hawkins, J. M. B., Griffith, B. A. and Harris, P. 2023. The North Wyke Farm Platform: Fine Resolution (15-Minute) Hydrology and Water Quality Data. Rothamsted Research. https://doi.org/10.23637/rothamsted.98y34

The North Wyke Farm Platform: GreenFeed System Methane and Carbon Dioxide Data

De-Meo-Filho, P., Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: GreenFeed System Methane and Carbon Dioxide Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y53

The North Wyke Farm Platform: Eddy Covariance Greenhouse Gas Data

Olde, L., Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: Eddy Covariance Greenhouse Gas Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y52

The North Wyke Farm Platform: Field Survey Data

Hawkins, J. M. B., Beaumont, D. A., Sint, H. M. and Harris, P. 2023. The North Wyke Farm Platform: Field Survey Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y51

The North Wyke Farm Platform: Livestock Data

Hawkins, J. M. B., Griffith, B. A. and Harris, P. 2023. The North Wyke Farm Platform: Livestock Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y50

The North Wyke Farm Platform: Field Events Data

Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: Field Events Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y4z

The North Wyke Farm Platform: Quality Control System (Data version 3; released on 01-12-2018)

Hawkins, J. M. B., Sint, H. M. and Harris, P. 2023. The North Wyke Farm Platform: Quality Control System (Data version 3; released on 01-12-2018). Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y4y

The North Wyke Farm Platform: Fine Resolution (15-minute) Soil Moisture Station Data

Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: Fine Resolution (15-minute) Soil Moisture Station Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y4x

The North Wyke Farm Platform: Fine Resolution (15-minute) Meteorological Data

Hawkins, J. M. B. and Harris, P. 2023. The North Wyke Farm Platform: Fine Resolution (15-minute) Meteorological Data. Rothamsted Research Rothamsted Research. https://doi.org/10.23637/rothamsted.98y4w

The North Wyke Farm Platform: Design, Establishment and Development

Hawkins, J. M. B., Griffith, B. A., Sint, H. M. and Harris, P. 2023. The North Wyke Farm Platform: Design, Establishment and Development. Rothamsted Research. https://doi.org/10.23637/rothamsted.98y1x

Do NO, N2O, N2 and N2 fluxes differ in soils sourced from cropland and varying riparian buffer vegetation? An incubation study

Dlamini, J. C., Tesfamariam, E. H., Verbeeck, M., Loick, N., Louro-Lopez, A., Hawkins, J. M. B., Blackwell, M. S. A., Dunn, R., Collins, A. L. and Cardenas, L. M. 2023. Do NO, N2O, N2 and N2 fluxes differ in soils sourced from cropland and varying riparian buffer vegetation? An incubation study. Soil Use and Management. 40 (1), p. e12951. https://doi.org/10.1111/sum.12951

Soil carbon dioxide (CO2) fluxes in permanent upslope pasture and downslope riparian buffers with varying vegetation

Dlamini, J., Tesfamariam, E. H., Dunn, R., Hood, J., Hawkins, J. M. B., Blackwell, M. S. A., Collins, A. L. and Cardenas, L. M. 2023. Soil carbon dioxide (CO2) fluxes in permanent upslope pasture and downslope riparian buffers with varying vegetation. Journal of Plant Nutrition and Soil Science. 186 (4), pp. 406-416. https://doi.org/10.1002/jpln.202100292

Impacts of different vegetation in riparian buffer strips on runoff and sediment loss

Dunn, R. M., Hawkins, J. M. B., Blackwell, M. S. A., Zhang, Y. and Collins, A. L. 2022. Impacts of different vegetation in riparian buffer strips on runoff and sediment loss. Hydrological Processes. 36 (11), p. e14733. https://doi.org/10.1002/hyp.14733

Soil CO2 emissions in cropland with fodder maize (Zea mays L.) with and without riparian buffer strips of differing vegetation

Dlamini, J., Cardenas, L. M., Tesfamariam, E. H., Dunn, R. M., Hawkins, J. M. B., Blackwell, M. S. A. and Collins, A. L. 2022. Soil CO2 emissions in cropland with fodder maize (Zea mays L.) with and without riparian buffer strips of differing vegetation. Agroforestry Systems. 96, pp. 983-995. https://doi.org/10.1007/s10457-022-00756-5

The effect of soil organic matter on long-term availability of phosphorus in soil: evaluation in a biological P mining experiment

Hawkins, J. M. B., Vermeiren, C., Blackwell, M. S. A., Darch, T., Granger, S. J., Dunham, S. J., Hernandez, J. M. B., Smolders, E. and McGrath, S. P. 2022. The effect of soil organic matter on long-term availability of phosphorus in soil: evaluation in a biological P mining experiment. Geoderma. 423, p. 115965. https://doi.org/10.1016/j.geoderma.2022.115965

Riparian buffer strips influence nitrogen losses as nitrous oxide and leached N from upslope permanent pasture

Dlamini, J., Cardenas, L. M., Tesfamariam, E.H., Dunn, R. M., Loick, N., Charteris, A., Cocciaglia, L., Vangeli,S., Blackwell, M. S. A., Upadhayay, H., Hawkins, J. M. B., Evans, J. and Collins, A. L. 2022. Riparian buffer strips influence nitrogen losses as nitrous oxide and leached N from upslope permanent pasture. Agriculture, Ecosystems & Environment. 336 (15 September), p. 108031. https://doi.org/10.1016/j.agee.2022.108031

Soil N2O and CH4 emissions from fodder maize production with and without riparian buffer strips of differing vegetation

Dlamini, J., Cardenas, L. M., Tesfamariam, E. H., Dunn, R., Evans, J., Hawkins, J. M. B., Blackwell, M. S. A. and Collins, A. L. 2022. Soil N2O and CH4 emissions from fodder maize production with and without riparian buffer strips of differing vegetation. Plant and Soil. 477, pp. 297-318. https://doi.org/10.1007/s11104-022-05426-0

Soil methane (CH4) fluxes in cropland with permanent pasture and riparian buffer strips with different vegetation

Dlamini, J., Cardenas, L. M., Tesfamariam, E. H., Dunn, R. M., Hawkins, J. M. B., Blackwell, M. S. A., Evans, J. and Collins, A. L. 2021. Soil methane (CH4) fluxes in cropland with permanent pasture and riparian buffer strips with different vegetation. Journal of Plant Nutrition and Soil Science. https://doi.org/10.1002/jpln.202000473

Investigation of the soil properties that affect Olsen P critical values in different soil types and impact on P fertiliser recommendations

Tandy, S., Hawkins, J. M. B., Dunham, S. J., Hernandez, J. M. B., Granger, S. J., Yuan, H., McGrath, S. P. and Blackwell, M. S. A. 2021. Investigation of the soil properties that affect Olsen P critical values in different soil types and impact on P fertiliser recommendations. European Journal of Soil Science. 72 (4), pp. 1802-1816. https://doi.org/10.1111/ejss.13082

Evaluating the potential of different carbon sources to promote denitrification

Dlamini, J. C., Chadwick, D. R., Hawkins, J. M. B., Martinez, J., Scholefield, D., Ma, Y. and Cardenas, L. M. 2020. Evaluating the potential of different carbon sources to promote denitrification. The Journal of Agricultural Science. 158 (3), pp. 194-205. https://doi.org/10.1017/S0021859620000520

Fertilizer produced from abattoir waste can contribute to phosphorus sustainability, and biofortify crops with minerals

Darch, T., Dunn, R. M., Guy, A., Hawkins, J. M. B., Ash, M., Frimpong, K. A. and Blackwell, M. S. A. 2019. Fertilizer produced from abattoir waste can contribute to phosphorus sustainability, and biofortify crops with minerals. PLOS ONE. 14 (9), p. e0221647. https://doi.org/10.1371/journal.pone.0221647

Rothamsted Long-term experiments : guide to the classical and other long-term experiments, datasets and sample archive

Macdonald, A. J., Poulton, P. R., Clark, I. M., Scott, T., Glendining, M. J., Perryman, S. A. M., Storkey, J., Bell, J. R., Shield, I. F., Mcmillan, V. E. and Hawkins, J. M. B. Macdonald, A. J. (ed.) 2018. Rothamsted Long-term experiments : guide to the classical and other long-term experiments, datasets and sample archive. Rothamsted Research, Harpenden.

Roles of instrumented farm-scale trials in trade-off assessments of pasture-based ruminant production systems

Takahashi, T., Harris, P., Blackwell, M. S. A., Cardenas, L. M., Collins, A. L., Dungait, J. A. J., Hawkins, J. M. B., Misselbrook, T. H., McAuliffe, G. A., McFadzean, J. N., Murray, P. J., Orr, R. J., Rivero, M. J., Wu, L. and Lee, M. R. F. 2018. Roles of instrumented farm-scale trials in trade-off assessments of pasture-based ruminant production systems. Animal. 12 (8), pp. 1766-1776. https://doi.org/10.1017/S1751731118000502

Effect of long‐term drainage on plant community, soil carbon and nitrogen contents and stable isotopic (δ13C, δ15N) composition of a permanent grassland

Harris, P., Bol, R., Evans, J., Hawkins, J. M. B., Dixon, E. R., Wolf, K., Dungait, J. A. J., Griffith, B. A., Herbst, M., Dhanoa, M. S., Beaumont, D. A., Dunn, R. M. and Weisenberg, G. L. B. 2018. Effect of long‐term drainage on plant community, soil carbon and nitrogen contents and stable isotopic (δ13C, δ15N) composition of a permanent grassland. European Journal of Soil Science. 69 (1), pp. 48-68. https://doi.org/10.1111/ejss.12504

Assessment of bioavailable organic phosphorus in tropical forest soils by organic acid extraction and phosphatase hydrolysis

Darch, T., Blackwell, M. S. A., Chadwick, D. R., Haygarth, P. M., Hawkins, J. M. B. and Turner, B. L. 2016. Assessment of bioavailable organic phosphorus in tropical forest soils by organic acid extraction and phosphatase hydrolysis. Geoderma. 284 (15 December), pp. 93-102. https://doi.org/10.1016/j.geoderma.2016.08.018

The contribution of farm-scale experiments to the understanding of soil processes and implications for ecosystem services [Guest Editors' Introduction]

Cardenas, L. M., Collins, A. L., Dungait, J. A. J., Hawkins, J. M. B., Chabbi, A. and Hawes, C. 2016. The contribution of farm-scale experiments to the understanding of soil processes and implications for ecosystem services [Guest Editors' Introduction]. European Journal of Soil Science. 67 (4), pp. 359-359. https://doi.org/10.1111/ejss.12360

The North Wyke Farm Platform: effect of temperate grassland farming systems on soil moisture contents, runoff and associated water quality dynamics

Orr, R. J., Murray, P. J., Eyles, C. J., Blackwell, M. S. A., Cardenas, L. M., Collins, A. L., Dungait, J. A. J., Goulding, K. W. T., Griffith, B. A., Gurr, S. J., Harris, P., Hawkins, J. M. B., Misselbrook, T. H., Rawlings, C. J., Shepherd, A., Sint, H. M., Takahashi, T., Tozer, K. N., Whitmore, A. P., Wu, L. and Lee, M. R. F. 2016. The North Wyke Farm Platform: effect of temperate grassland farming systems on soil moisture contents, runoff and associated water quality dynamics. European Journal of Soil Science. 67 (4), pp. 374-385. https://doi.org/10.1111/ejss.12350

Morphological responses of wheat (Triticum aestivum L.) roots to phosphorus supply in two contrasting soils

Yuan, H-M., Blackwell, M. S. A., McGrath, S. P., George, T. S., Granger, S. H., Hawkins, J. M. B., Dunham, S. and Shen, J. B. 2016. Morphological responses of wheat (Triticum aestivum L.) roots to phosphorus supply in two contrasting soils. The Journal of Agricultural Science. 154 (1), pp. 98-108. https://doi.org/10.1017/s0021859615000702

Using 31P-NMR to investigate dynamics of soil phosphorus compounds in the Rothamsted Long Term Experiments

Blackwell, M. S. A., Turner, B., Granger, S. J., Hooper, A. M., Darch, T., Hawkins, J. M. B., Yuan, H. and McGrath, S. P. 2015. Using 31P-NMR to investigate dynamics of soil phosphorus compounds in the Rothamsted Long Term Experiments. EGU.

Dissolved phosphorus retention in buffer strips: influence of slope and soil type

Darch, T., Carswell, A. M., Blackwell, M. S. A., Hawkins, J. M. B., Haygarth, P. M. and Chadwick, D. 2015. Dissolved phosphorus retention in buffer strips: influence of slope and soil type. Journal of Environmental Quality. 44, pp. 1216-1224. https://doi.org/10.2134/jeq2014.10.0440

The North Wyke Farm Platform, a national capability for research into sustainability of temperate agricultural grassland management: data and modelling opportunities

Harris, P., Griffith, B. A., Shepherd, A., Peukert, S., Hawkins, J. M. B., Elyes, C., Whitmore, A. P., Blackwell, M. S. A., Brazier, R. E., Cardenas, L. M., Wu, L., Dungait, J. A. J., Collins, A. L., Gurr, S. J., Murray, P. J., Goulding, K. W. T. and Orr, R. J. 2014. The North Wyke Farm Platform, a national capability for research into sustainability of temperate agricultural grassland management: data and modelling opportunities. Abstracts Tereno International Conference: from Observation to Prediction in Terrestrial Systems, Bonn, 29 September-2 October 2014 . pp. P2-07

Changes in wheat root morphology under different phosphorus fertiliser supply rates

Blackwell, M. S. A., Yuan, H., McGrath, S. P., Granger, S. J., Hawkins, J. M. B., Dunham, S. J., Hooper, A. M., George, T. and Shen, J. 2014. Changes in wheat root morphology under different phosphorus fertiliser supply rates. Abstracts 5th Conference on Phosphorus in Soils and Plants, Montpellier, 26-29 August 2014 . pp. P242

Final Report Defra Project WQ0126. Modular approaches to the control of diffuse agricultural pollution: buffer zones, bioreactors, ditches and ponds

Hawkins, J. M. B. and Blackwell, M. S. A. 2014. Final Report Defra Project WQ0126. Modular approaches to the control of diffuse agricultural pollution: buffer zones, bioreactors, ditches and ponds. Department for Environment, Food & Rural Affairs (DEFRA).

A meta-analysis of organic and inorganic phosphorus in organic fertilizers, soils and water: implications for water quality

Darch, T., Blackwell, M. S. A., Hawkins, J. M. B., Haygarth, P. M. and Chadwick, D. R. 2014. A meta-analysis of organic and inorganic phosphorus in organic fertilizers, soils and water: implications for water quality. Critical Reviews in Environmental Science and Technology. 44, pp. 2172-2202. https://doi.org/10.1080/10643389.2013.790752

The North Wyke Farm Platform: a new UK national capability for research into sustainability of agricultural temperate grassland management

Murray, P. J., Griffith, B. A., Orr, R. J., Shepherd, A., Blackwell, M. S. A., Hawkins, J. M. B. and Peukert, S. 2013. The North Wyke Farm Platform: a new UK national capability for research into sustainability of agricultural temperate grassland management. Michalk, D. L. (ed.) Proceedings 22nd International Grassland Congress, Sydney, 15-19 September 2013 . New South Wales Dept of Primary Industry, Orange. pp. 1931-1933

North Wyke Farm Platform: methodologies used in the remote sensing of the quantity and quality of drainage water

Griffith, B. A., Hawkins, J. M. B., Orr, R. J., Blackwell, M. S. A. and Murray, P. J. 2013. North Wyke Farm Platform: methodologies used in the remote sensing of the quantity and quality of drainage water. Michalk, D. L. (ed.) Proceedings 22nd International Grassland Congress, Sydney, 15-19 September 2013 . New South Wales Dept of Primary Industry, Orange. pp. 1453-1455

Export of dissolved organic carbon and nitrate from grassland in winter using high temporal resolution, in situ UV sensing

Sandford, R. C., Hawkins, J. M. B., Bol, R. and Worsfold, P. J. 2013. Export of dissolved organic carbon and nitrate from grassland in winter using high temporal resolution, in situ UV sensing. Science of the Total Environment. 456-457, pp. 384-391. https://doi.org/10.1016/j.scitotenv.2013.02.078

A novel application of natural fluorescence to understand the sources and transport pathways of pollutants from livestock farming in small headwater catchments

Old, G. H., Naden, P. S., Granger, S. J., Bilotta, G. S., Brazier, R. E., Macleod, C. J. A., Krueger, T., Bol, R., Hawkins, J. M. B., Haygarth, P. M. and Freer, J. 2012. A novel application of natural fluorescence to understand the sources and transport pathways of pollutants from livestock farming in small headwater catchments. Science of the Total Environment. 417-418, pp. 169-182. https://doi.org/10.1016/j.scitotenv.2011.12.013

Comparing empirical models for sediment and phosphorus transfer from soils to water at field and catchment scale under data uncertainty

Krueger, T., Quinton, J. N., Freer, J., Macleod, C. J. A., Bilotta, G. S., Brazier, R. E., Hawkins, J. M. B. and Haygarth, P. M. 2012. Comparing empirical models for sediment and phosphorus transfer from soils to water at field and catchment scale under data uncertainty. European Journal of Soil Science. 63 (2), pp. 211-223. https://doi.org/10.1111/j.1365-2389.2011.01419.x

Testing Greenfield run-off estimation techniques using high-resolution field observations

Rodda, H. J. E. and Hawkins, J. M. B. 2012. Testing Greenfield run-off estimation techniques using high-resolution field observations. Journal of Flood Risk Management. 5, pp. 366-375. https://doi.org/10.1111/j.1753-318X.2012.01156.x

Designing and creating the North Wyke Farm Platform

Orr, R. J., Griffith, B. A., Rose, S., Hatch, D. J., Hawkins, J. M. B. and Murray, P. J. 2011. Designing and creating the North Wyke Farm Platform. Abstracts Catchment Science 2011, Dublin, 14-16 September 2011 . pp. 35

Using artificial fluorescent particles as tracers of livestock wastes within an agricultural catchment

Granger, S. J., Bol, R., Hawkins, J. M. B., White, S. M., Naden, P. S., Old, G. H., Marsh, J. K., Bilotta, G. S., Brazier, R. E., Macleod, C. J. A. and Haygarth, P. M. 2011. Using artificial fluorescent particles as tracers of livestock wastes within an agricultural catchment. Science of the Total Environment. 409, pp. 1095-1103. https://doi.org/10.1016/j.scitotenv.2010.12.005

Assessment of natural fluorescence as a tracer of diffuse agricultural pollution from slurry spreading on intensely-farmed grasslands

Naden, P. S., Old, G. H., Eliot-Laize, C., Granger, S. J., Hawkins, J. M. B., Bol, R. and Haygarth, P. M. 2010. Assessment of natural fluorescence as a tracer of diffuse agricultural pollution from slurry spreading on intensely-farmed grasslands. Water Research. 44, pp. 1701-1712. https://doi.org/10.1016/j.watres.2009.11.038

Assessing catchment-scale erosion and yields of suspended solids from improved temperate grassland

Bilotta, G. S., Krueger, T., Brazier, R. E., Butler, P., Freer, J., Hawkins, J. M. B., Haygarth, P. M., Macleod, C. J. A. and Quinton, J. N. 2010. Assessing catchment-scale erosion and yields of suspended solids from improved temperate grassland. Journal of Environmental Monitoring. 12, pp. 731-739. https://doi.org/10.1039/b921584k

High temporal resolution monitoring of multiple pollutant responses in drainage from an intensively managed grassland catchment caused by a summer storm

Granger, S. J., Hawkins, J. M. B., Bol, R., White, S. M., Naden, P., Old, G., Bilotta, G. S., Brazier, R. E., Macleod, C. J. A. and Haygarth, P. M. 2010. High temporal resolution monitoring of multiple pollutant responses in drainage from an intensively managed grassland catchment caused by a summer storm. Water Air And Soil Pollution. 205, pp. 377-393. https://doi.org/10.1007/s11270-009-0083-z

The wavelet packet transform: a technique for investigating temporal variation of river water solutes

Milne, A. E., Macleod, C. J. A., Haygarth, P. M., Hawkins, J. M. B. and Lark, R. M. 2009. The wavelet packet transform: a technique for investigating temporal variation of river water solutes. Journal of Hydrology. 379 (1-2), pp. 1-19. https://doi.org/10.1016/j.jhydrol.2009.09.038

Grasslands, sediment, colloids and phosphorus: an interdisciplinary team approach with the 'GrasP' project

Macleod, C. J. A., Bilotta, G. S., Bol, R., Brazier, R. E., Butler, P. J., Freer, J., Gimbert, L. J., Granger, S. J., Hawkins, J. M. B., Krueger, T., Naden, P. S., Old, G., Quinton, J. N., Worsfold. P. and Haygarth, P. M. 2007. Grasslands, sediment, colloids and phosphorus: an interdisciplinary team approach with the 'GrasP' project. Heckrath, G., Rubaek, G. H. and Kronvang, B. (ed.) Diffuse Phosphorus Loss: Risk Assessment, Mitigation Options and Ecological Effects in River Basins. 5th International Phosphorus Workshop (IPW5), Silkeborg, Denmark, 3-7 September 2007. pp. 193-196

Blueprints for sustainable nutrient use in dairy grassland-based production

Del Prado, A., Cardenas, L. M., Hawkins, J. M. B., Brown, L., Cuttle, S. P., Jewkes, E. C. and Scholefield, D. 2007. Blueprints for sustainable nutrient use in dairy grassland-based production. 15th N Workshop, 'Towards a better efficiency in N use ', Lleida, Spain, May 28-30, 2007.

Dissolved free and combined amino acids in surface runoff and drainage waters from drained and undrained grassland under different fertilizer management

Hawkins, J. M. B., Scholefield, D. and Braven, J. 2006. Dissolved free and combined amino acids in surface runoff and drainage waters from drained and undrained grassland under different fertilizer management. Environmental Science & Technology. 40 (16), pp. 4887-4893. https://doi.org/10.1021/es052532r

Cattle slurry amended with nitrification inhibitors: effects on nitrous oxide, dinitrogen and methane emissions

Caneiro, J., Cardenas, L. M., Hatch, D., Trindad, H., Hawkins, J. M. B., Scholefield, D. and Chadwick, D. 2005. Cattle slurry amended with nitrification inhibitors: effects on nitrous oxide, dinitrogen and methane emissions. Proceedings of the XX International grassland congress, Dublin, Ireland, 26 June - 2 July 2005. pp. p575

Laboratory study of the effects of two nitrification inhibitors on greenhouse gas emissions from a slurry-treated arable soil : impact of diurnal temperature cycle

Hatch, D. J., Trindade, H., Cardenas, L. M., Carneiro, J., Hawkins, J. M. B., Scholefield, D. and Chadwick, D. R. 2005. Laboratory study of the effects of two nitrification inhibitors on greenhouse gas emissions from a slurry-treated arable soil : impact of diurnal temperature cycle. Biology And Fertility Of Soils. 41 (4), pp. 225-232. https://doi.org/10.1007/s00374-005-0836-9

Amino acids as diagnostics of soil and soil water quality

Hawkins, J. M. B. 2004. Amino acids as diagnostics of soil and soil water quality. F - Theses

Use of a 2-pool model to evaluate the effect of fertiliser application on nitrogen emissions from grassland soils

Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. R. and Scholefield, D. 2004. Use of a 2-pool model to evaluate the effect of fertiliser application on nitrogen emissions from grassland soils. Hatch, D. J., Chadwick, D., Jarvis, S. C. and Roker, J. A. (ed.) 'Controlling N Flows and Losses'. Proceedings 12th Nitrogen Workshop, University of Exeter, 21-24 September 2003. Wageningen Academic Publishers, Wageningen, Netherlands. pp. 303-305

Nitrogen emissions from soils

Ganzeveld, L., Li, C., Cardenas, L. M., Hawkins, J. M. B. and Kirkman, G. 2004. Nitrogen emissions from soils. in: Granier, C., Artaxo, P. and Reeves, C. E. (ed.) Emissions of atmospheric trace compounds (Advances in global change research series, 18) Kluwer Academic Publishers, Dordrecht, Netherlands. pp. 171-238

Use of a 2-pool model to evaluate the effect of fertiliser application on nitrogen emissions from grassland soils

Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. R. and Scholefield, D. 2003. Use of a 2-pool model to evaluate the effect of fertiliser application on nitrogen emissions from grassland soils. Controlling N flows and losses. Abstracts 12th Nitrogen Workshop, Exeter, 21-24 September 2003.

Dual isotope and isotopomer ratios of N2O emitted from a temperate grassland soil after fertiliser application

Bol, R., Toyoda, S., Yamulki, S., Hawkins, J. M. B., Cardenas, L. M. and Yoshida, N. 2003. Dual isotope and isotopomer ratios of N2O emitted from a temperate grassland soil after fertiliser application. Rapid Communications in Mass Spectrometry. 17 (22), pp. 2550-2556. https://doi.org/10.1002/rcm.1223

Biogenic gas emissions from soils measured using a new automated laboratory incubation system

Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. and Scholefield, D. 2003. Biogenic gas emissions from soils measured using a new automated laboratory incubation system. Soil Biology and Biochemistry. 35 (6), pp. 867-870. https://doi.org/10.1016/S0038-0717(03)00092-0

Effect of carbon availability on N2 and N2O emissions

Cardenas, L. M., Hawkins, J. M. B., Martinez, J., Chadwick, D. R. and Scholefield, D. 2002. Effect of carbon availability on N2 and N2O emissions. Abstracts. CEMAGREF Workshop, Rennes, France, 10-12 June 2001.

Study of denitrification in grassland soils in relation to carbon application

Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. R. and Scholefield, D. 2002. Study of denitrification in grassland soils in relation to carbon application. Poster BIOGEMON 2002. 4th International Symposium on Ecosystem Behaviour, University of Reading, 17-21 August 2002.

Soil nitrogen emissions

Ganzeveld, L., Li, C., Cardenas, L. M., Hawkins, J. M. B. and Kirkman, G. 2001. Soil nitrogen emissions. Emissions of Chemical Species and Aerosols into the Atmosphere. Proceedings of Workshop, Paris, France, 19-22 June 2001.

Application of an improved technique to evaluate controls on nitrous (N2O) emissions from grassland soils

Cardenas, L. M., Hawkins, J. M. B., Chadwick, D. R. and Scholefield, D. 2001. Application of an improved technique to evaluate controls on nitrous (N2O) emissions from grassland soils. Proceedings of an International Workshop on Emissions of Chemical Species and Aerosols into the Atmosphere, Paris, France, 19-22 June 2001.

Leaching of dissolved organic N from grass - white clover pasture in SW England

Hawkins, J. M. B. and Scholefield, D. 2000. Leaching of dissolved organic N from grass - white clover pasture in SW England. Soegaard, K., Ohlsson, C., Hutchings, N. J., Kristensen, T. and Sehested, J. (ed.) Grassland Farming: Balancing Environmental and Economic Demands. Proceedings of the 18th General Meeting of the European Grassland Federation, Aalborg, Denmark, 22-25 May 2000 (Grassland Science in Europe, Vol 5). pp. 378-380

Dissolved free amino acids in surface lateral drainage from grazed grassland

Hawkins, J. M. B. and Scholefield, D. 1999. Dissolved free amino acids in surface lateral drainage from grazed grassland. Proceedings of the Tenth Nitrogen Workshop, Copenhagen, 1999. pp. 4pp

Use of a novel incubation technique to measure N2O/N2 following surface or injected application of slurry

Scholefield, D., Chadwick, D. R. and Hawkins, J. M. B. 1999. Use of a novel incubation technique to measure N2O/N2 following surface or injected application of slurry. Buchanan-Smith, J. G., Bailey, L. D. and McCaughey, P. (ed.) Grasslands 2000, Proceedings of the XVIII International Grassland Congress, Winnipeg, Manitoba, Saskatoon, Saskatchewan, Canada, 8-17 June 1997 (Vol 2). Canadian Forage Council, Can Soc Agron, Can Soc Anim Sci. pp. 20-3 - 20-4

The potential of amino acid distributions as diagnostics of soil quality

Hawkins, J. M. B., Scholefield, D. and Bol, R. 1998. The potential of amino acid distributions as diagnostics of soil quality. in: Nagy, G. and Peto, K. (ed.) Ecological Aspects of Grassland Management, Proceedings of the 17th General Meeting of the European Grassland Federation, Debrecen Agricultural University, Debrecen, Hungary, 18-21 May 1998 British Grassland Society (BGS) Hurley. pp. 555-558

Use of a flowing helium atmosphere incubation technique to measure the effects of denitrification controls applied to intact cores of a clay soil

Scholefield, D., Hawkins, J. M. B. and Jackson, S. M. 1997. Use of a flowing helium atmosphere incubation technique to measure the effects of denitrification controls applied to intact cores of a clay soil. Soil Biology and Biochemistry. 29 (9-10), pp. 1337-1344. https://doi.org/10.1016/S0038-0717(97)00059-X

The extent and pathways of transfer of organic N from fertilised and unfertilised grassland

Hawkins, J. M. B. and Scholefield, D. 1997. The extent and pathways of transfer of organic N from fertilised and unfertilised grassland. British Grassland Society (BGS) Fifth Research Conference, Seale Hayne Faculty of Agriculture Food & Land Use, University of Plymouth, Newton Abbot, Devon, 8-10 September 1997. British Grassland Society (BGS) Hurley. pp. 97-98

Development of a helium atmosphere soil incubation technique for direct measurement of nitrous oxide and dinitrogen fluxes during denitrification

Scholefield, D., Hawkins, J. M. B. and Jackson, S. M. 1997. Development of a helium atmosphere soil incubation technique for direct measurement of nitrous oxide and dinitrogen fluxes during denitrification. Soil Biology and Biochemistry. 29 (9-10), pp. 1345-1352.

Determination of controls over denitrification using a flowing helium atmosphere system

Scholefield, D. and Hawkins, J. M. B. 1997. Determination of controls over denitrification using a flowing helium atmosphere system. in: Jarvis, S. C. and Pain, B. F. (ed.) Gaseous Nitrogen Emissions from Grasslands Wallingford, Oxon CAB International (CABI). pp. 27-36

Molybdate-reactive phosphorus losses in surface and drainage waters from permanent grassland

Hawkins, J. M. B. and Scholefield, D. 1996. Molybdate-reactive phosphorus losses in surface and drainage waters from permanent grassland. Journal of Environmental Quality. 25 (4), pp. 727-732. https://doi.org/10.2134/jeq1996.00472425002500040012x

Long-term study on the transfer of phosphorus from grassland soil to surface waters

Hawkins, J. M. B., Haygarth, P. M., Jarvis, S. C. and Scholefield, D. 1996. Long-term study on the transfer of phosphorus from grassland soil to surface waters. in: Petchey, A. M., D'Arcy, B. J. and Trust, C. A. (ed.) Diffuse Pollution and Agriculture Scottish Agricultural College (SAC) Nevisprint Ltd. pp. 252-254

Use of a `flow-over' incubation technique without acetylene blocking to measure the effect of the factors controlling denitrification in a grassland soil

Scholefield, D., Hawkins, J. M. B. and Jackson, S. M. 1994. Use of a `flow-over' incubation technique without acetylene blocking to measure the effect of the factors controlling denitrification in a grassland soil. Progress in Nitrogen Cycling, the Eighth Nitrogen Cycling Workshop, University of Ghent, Belgium, 5-9 September 1994.

Development of a `flow-over' technique to measure N2 and N2O fluxes during soil incubation

Hawkins, J. M. B. and Scholefield, D. 1994. Development of a `flow-over' technique to measure N2 and N2O fluxes during soil incubation. Progress in Nitrogen Cycling, the Eighth Nitrogen Cycling Workshop, University of Ghent, Belgium, 5-9 September 1994.

The effects of nitrate, water content and temperature on denitrification in a grassland soil measured using a "flow-over" technique without acetylene blocking

Scholefield, D., Hawkins, J. M. B. and Jackson, S. M. 1993. The effects of nitrate, water content and temperature on denitrification in a grassland soil measured using a "flow-over" technique without acetylene blocking. Fourth AFRC Meeting on Plant and Soil Nitrogen Metabolism, 15-17 December 1993, Silsoe, UK.

Nitrate leaching from grazed grassland lysimeters: effects of fertilizer input, field drainage, age of sward and patterns of weather

Scholefield, D., Tyson, K. C., Garwood, E. A., Armstrong, A. C., Hawkins, J. M. B. and Stone, A. C. 1993. Nitrate leaching from grazed grassland lysimeters: effects of fertilizer input, field drainage, age of sward and patterns of weather. Journal of Soil Science. 44, pp. 601-613.