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Michael Williams
Assistant Professor, Botany
Assistant Professor, Trinity Centre for the Environment

Biography

Dr. Michael Williams joined the College in 1992 as a joint lecturer in the Botany Department and the Environmental Science Unit (now the Trinity College Centre for Environment). He is a member of the Plant Physiology research group. His primary research activity centers on the measurement and modeling of below ground soil processes in agricultural systems. Other research interests include photosynthesis and respiration in higher plants and algae. Ongoing Projects Measurement and modeling of soil respiration in arable and pasture soils. Funding Agency - EPA and EU Measurement and modeling of nitrous oxide emissions in agricultural soils Funding Agency - EPA Soil mineralization and pasture management in a Mayo catchment. Funding Agency - Teagasc Previous Projects Physiological studies of salt tolerance in Plantago maritima. Funding Agency - Enterprise Ireland Respiration and carbohydrate metabolism in higher plants. Funding Agency - Enterprise Ireland

Publications and Further Research Outputs

Peer-Reviewed Publications

Burchill, W., Lanigan, G., Williams, M., Humphreys, J, A system N balance for a pasture-based system of dairy production under moist maritime climatic conditions, Agriculture, Ecosystems and Environment, 220, 2016, p202 - 210 Journal Article, 2016

Krol, D.J., Jones M.B., Williams, M., Richards, K.G., Bourdin, F., Lanigan, G.J., The effect of renovation of long-term temperate grassland on N2O emissions and N leaching from contrasting soils., The Science of the Total Environment, 560-561, 2016, p233 - 240 Journal Article, 2016 DOI

Nuria Valbuena, Owen Fenton, Patrick Thouy, William Burchill, Michael Williams, Gary Lanigan, James Humphreys, The effect of mole drainage on background N2O emissions from an unfertilised clay-loam soil, The Agriculture Research Forum 2015, Tullamore, Co. Offaly, Ireland, 2015 Conference Paper, 2015 URL

Nuria Valbuena, Patrick Tuohy, Owen Fenton, William Burchill , Gary Lanigan, Michael Williams, James Humphreys , The effect of mole drainage on N2O emissions from a clay-loam soil under grassland, Wageningen Soils Conference, , Wageningen, The Netherlands, 2015, 2015 Conference Paper, 2015 URL

W Burchill, E K James, D Li, G J Lanigan, M Williams, P P M Iannetta, J Humphreys ·, Comparisons of biological nitrogen fixation in association with white clover (Trifolium repens L.) under four fertiliser nitrogen inputs as measured using two 15N techniques, Plant and Soil, 2014 Journal Article, 2014 DOI

Roth, B., Finnan, J., Jones, M.B., Burke, J.L. and Williams, M.L., Are the benefits of yield responses to nitrogen fertiliser application in the bioenergy crop Miscanthus x giganteus offset by increased soil emissions of nitrous oxide, Global Change Biology Bioenergy, doi: 10.1111/gcbb.12, 2014 Journal Article, 2014

WILLIAM BURCHILL, DEJUN LI, GARY J. LANIGAN, MICHEAL WILLIAMS, JAMESHUMPHREYS, Interannual variation in nitrous oxide emissions fromperennial ryegrass/white clover grassland used for dairyproduction, Global Change Biology, 2014 Journal Article, 2014 DOI

Burchill W, Li D, Lanigan GJ, Williams M, Humphreys J, Interannual variation in nitrous oxide emissions from perennial ryegrass/white clover grassland used for dairy production., Global change biology, 20, (10), 2014, p3137-46 Journal Article, 2014 TARA - Full Text DOI

M.I. Khalil, M. Richards, B. Osborne, M. Williams, and C. Müller, Simulation and validation of greenhouse gas emissions and SOC stock changes in arable land using the ECOSSE Model , Atmospheric Environment, 81, 2013, p616 - 624 Journal Article, 2013

Brendan Roth, Mike Jones, James Burke and Michael Williams, The Effects of Land-Use Change from Grassland to Miscanthus x giganteus on Soil N2O Emissions , Land, 2, (3), 2013, p437 - 451 Journal Article, 2013 DOI

Abdalla M, Osborne B, Lanigan G, Forristal D, Williams M, Smith P, Jones MB, Conservation tillage systems: a review of its consequences for greenhouse gas emissions, Soil Use and Management, 29, (2), 2013, p199-209 Journal Article, 2013 DOI

Abdalla M, Saunders M, Hastings A, Williams M, Smith P, Osborne B, Lanigan G, Jones MB, Simulating the impacts of land use in Northwest Europe on Nat Ecosystem Exchange (NEE): The role of arable ecosystems, grasslands and forest plantations in climate change mitigation., Science of the Total Environment, 465, (1), 2013, 325-336 Journal Article, 2013 DOI

Abdalla M, Rueangritsarakul K, Jones M, Osborne B, Helmy M, Roth B, Burke J, Nolan P, Smith P, Williams M,, How effective is reduced tillage-cover crop management in reducing N2O fluxes from arable crop soils?, Water Air and Soil Pollution, 223, 2012, p5155 - 5174 Journal Article, 2012

M. Abdalla, S. Kumar, M. Jones, J. Burke, M. Williams, Testing DNDC model for simulating soil respiration and assessing the effects of climate change on the CO2 gas flux from Irish agriculture, Global and Planetary Change, 78, (3-4), 2011, p106-115 Journal Article, 2011 TARA - Full Text

Emissions of Nitrous Oxide from Agriculture: Responses to Management and Climate Change in, editor(s)Lei Guo, Amrith S. Gunasekara, Laura L. McConnell , Understanding Greenhouse Gas Emissions from Agricultural Management, American Chemical Society, 2011, pp343 - 370, [Abdalla. M., Smith, P and Williams, M.L.] Book Chapter, 2011 DOI

M. Abdalla, M.Jones, P.Ambus and M.Williams, Emissions of Nitrous Oxide from Irish Arable Soils: Effects of Tillage and Reduced N input, Nutrient Cycling in Agroecosystems, 86, 2010, p53 - 65 Journal Article, 2010

Abdalla, M., Jones, M., Ambus, P., Wattenbach, M., Smith, P. and Williams, M. , Emissions of Nitrous oxide from arable soils: Effects of tillage, reduced N input and climate change, Proceedings of the International Soil Science Congress on Management of Natural Resources to Sustain Soil Health and Quality, International Soil Science Congress on Management of Natural Resources to Sustain Soil Health and Quality, Samsun, Turkey, May 26 - 28, 2010, edited by R. Kizilkaya, C.Gulser, O.Dengiz , Ondokuz Mayis University, Samsun, Turkey, 2010, pp235 - 245 Conference Paper, 2010

M. Abdalla, M. Jones, J. Yeluripati, P. Smith, J. Burke and M. Williams, Testing DayCent and DNDC model simulations of N2O fluxes and assessing the impacts of climate change on the gas flux and biomass production from a humid pasture., Atmospheric Environment, 44, (25), 2010, p2961 - 2970 Journal Article, 2010 TARA - Full Text DOI

Mike Jones, Bruce Osborne, Mike Williams, Matt Saunders, Gary Lanigan, James Burke, Phill Davis, Mohammed Abdalla, John Clifton-Brown, John Connolly, Suresh Kumar and Miklos Nagy. , STRIVE REPORT SERIES No 43: CLIMATE CHANGE - Accounting for greenhouse gas sources and sinks in major Irish land-use categories: towards the establishment of a Co-ordinating Centre for FLUX measurements (CCFLUX) Final Report prepared for the Environmental Protection Agency (2000-CD-C1-M1), Dublin, Ireland, Environmental Protection Agency, Ireland, February , 2010, (ISBN: 978-1-84095-333-6) Report, 2010

Abdalla, M., Jones, M., Ambus, P., Wattenbach, M., Smith, P., williams, M., Emissions of Nitrous Oxide from Arable Soils: Effects of Tillage, Reduced N Input and Climate Change, Anadolu Journal of Agricultural Science, 25, 2010, p91 - 101 Journal Article, 2010

M. Abdalla, M. Wattenbach, P. Smith, P. Ambus, M. Jones and M. Williams, Application of the DNDC model to predict emissions of N2O from Irish agriculture., Geoderma, 151, 2009, p327 - 337 Journal Article, 2009 TARA - Full Text

Abdalla, M., Jones, M. and Williams, M., Simulation of N2O fluxes from Irish arable soils: effect of climate change and management, Biology and Fertility of Soils, 2009 Journal Article, 2009 DOI

Abdalla, M., Jones, M. Smith, P. and Williams, M., Nitrous oxide fluxes and denitrification sensitivity to temperature in Irish pasture soils, Soil Use and Management, 25, 2009, p376 - 388 Journal Article, 2009

Bahn, M., Anderson, M., Dore, S., Gimeno, C., Drösler, M., Williams, M., Acosta, M., Ammann, C., Berninger, F., Flechard, C., Jones, S., Kumar, S., Newesely, R.S., Pavelka, M., Priwitzer, T., Raschi, A., Siegwolf, R., Susiluto, S., Tenhunen, J., Wohlfahrt, G., and Cernusca, A.,, Soil respiration in European grasslands in relation to climate and assimilate supply, ECOSYSTEMS, 11, 2008, p1352 - 1367 Journal Article, 2008 TARA - Full Text

Tagir G. Gilmanov, Jean-Francois Soussana, Aires, L, Allard, V., Ammann, C., Balzaro, M., Barcza, Z., Bernhofer, C., Cescatti, A., Dirks, B.O.M., Eugster, W., Fuhrer, J., Gimeno, C., Gruenwald, T., Haszpara, L., Hensen, A., Ibrom,A., Jacobs, A.F.G., Jones, M.B., Lanigan, G., Laurila, T., Lohila, A., Manca, G., Nagy, Z., Pilegaard, K., Pinter, K., Pio, C.,, Raschi, A., Rogiers, N., Sanz, M.J., Stefani, P., Sutton, M., Tuba, Z., Valentini, R., Williams, M.L., Wolfhart, G, Partitioning of the tower-based net CO2 exchange in European grasslands into gross primary productivity and ecosystem respiration components using light response functions analysis, Agriculture Ecosystems and Environment, 121, (1+2), 2007, p93 - 120 Journal Article, 2007

Flechard, C.R., Ambus, P., Skiba, U., Rees, R.M., Hensen, A., van den Pol, A., Soussana, J.-F., Jones, M., Clifton-Brown, J., Raschi, A., Horvath, L., van Amstel, A., Neftel, A., Jocher, M., Ammann, C., Fuhrer, J., Calanca, P., Thalman, E., Pilegaard, K., Di Marco, C., Campbell, C., Nemitz, E., Hargreaves, K.J., Levy, P., Ball, B., Jones, S., van de Bulk, W.C.M., Groot, T., Blom, M., Gunnink, H., Kasper, G., Allard, V., Cellier, P., Laville, P., Henault, C., Bizouard, F., Jolivot, D., Abdalla, M., Williams, M., Baronti, S., Berretti, F., Grosz, B. and Domingues, R, Effect of climate and management intensity on nitrous oxide emissions in grassland systems across Europe, Agriculture Ecosystems and Environment, 121, (1+2), 2007, p135 - 152 Journal Article, 2007

S. Kumar, M. Abdalla, P. Ambus, A. McCourt, J. Clifton-Brown, J. Burke, M. Jones and M. L. Williams, Fluxes of CO2 and N2O from soils of a grazed pasture in Ireland, XX International Grassland Congress: Offered Papers, XX International Grassland Congress, UCD, Dublin, 26/6/05 to 1/7/05, edited by F.P. O'Mara, R.J. Wilkins, L.'t Mannetje, D.K. Lovett, P.A.M. Rogers and T.M. Boland , Wageningen Academic Publishers, 2005, pp572 - 572 Conference Paper, 2005

C. Flechard, A. Neftel, M. Jocher, C. Ammann, J. Fuhrer, E. Thalman, P. Ambus, K. Pilegaard, C. Di Marco, U. Skiba, C. Campbell, E. Nemitz, K.J. Hargreaves, P. Levy, S. Jones, R.M. Rees, A. Hensen, G. Kasper, W.C.M. van de Bulk, T. Groot, M. Blom, H. Gunnink, A. van den Pol, V. Allard, P. Laville, C. Henault, F. Bizouard, D. Jolivot, J-F. Soussana, M. Abdalla, M. Williams, M. Jones, J. Clifton-Brown, S. Baronti, F. Berretti, A. Raschi, L. Horvath, B. Grosz, R. Domingues and A. van Amstel., Nitrous Oxide (N2O) Flux Monitoring over European Grasslands, INRA-Clermont France, Spring, 2005 Report, 2005

Osbourne, B.A., Davis, P., Black, K., Clifton-Brown,J., Kumar, S., Williams, M., Jones, M., Crops and cropping systems for enhanced carbon sequestration in temperate arable agriculture., Proceedings of the VIII European Society of Agronomy Congress, VIII European Society of Agronomy Congress, Copenhagen, edited by S.E-Jacobsen, C.R. Jensen and J.R. Porter , 2004, pp149 - 150 Conference Paper, 2004

Cobb, A.H., Hopkins, R.M., Williams, M.L., and Sealey, R.V. (1990), Photoinhibition in thylakoids and intact chloroplasts of Codium fragile (Suringar) Hariot, Current Research in Photosynthesis, VIIIth International Congress on Photosynthesis, 1990, edited by M. Baltscheffsky , 2, Kluwer, The Hague, 1990, pp451 - 454 Conference Paper, 1990

Williams, M.L,. and Cobb, A.H., The isolation of functional chloroplasts from the sacoglossan mollusc Elysia viridis, New Phytologist, 113, 1989, p153 - 160 Journal Article, 1989

Non-Peer-Reviewed Publications

Mike Williams, Lavender and Haddock, USA, Createspace, 2015 Book, 2015

Mike Williams, Educating Creatures, USA, Createspace, 2015 Book, 2015

Mike Williams, The Allure iof the Red Wyrm, USA, Createspace, 2015 Book, 2015

Michael Williams, Jane Stout, Susannah Cass, Jenny Fischer, Hewart Böhm, Donal Murphy-Bokern, Tom Kuhlman, Fred L. Stoddard, Kristina Lindström, Christine Watson, Valentini Papa, Kairsty Topp, Moritz Reckling, Sara Preißel, Andrea Bues, Peter Zander, Marie Trydeman Knudsen, Jørgen E. Olesen, John E. Hermansen, Kirsten Schelde, Legume Futures Report 3.8/6.6 Policy implications of the environmental and resource effects of legume cropping, 2014 Report, 2014 URL

Michael Williams, Jane Stout, Brendan Roth, Susannah Cass, Valentini Pappa and Bob Rees, Legume Futures Report 3.7 Environmental implications for legume cropping, 2014 Report, 2014 URL

Stoddard, F.L., Williams, M.L., Sampling and measurement protocols for field experiments assessing the performance of legume-supported cropping systems. Legume Futures Report 1, www.legumefutures.de, 2011 Report, 2011

Research Expertise

Description

Soil respiration and carbon stocks Nitrous oxide emissions from agricultural soils Soil mineralisation Photosynthesis Carbohydrate partitioning in higher plants Plant cell anatomy Chloroplast symbiosis

Projects

  • Title
    • Fluxes of Nitrous Oxide from Arable Soils: Emission Factors, Annual Totals and Predictive Modelling.
  • Summary
    • The aim of this study is to determine the effect of reduced tillage, cover crop and N-supply on soil emissions of N2O and CO2 for a spring barley crop and to model soil fluxes of N2O and CO2 using both an empirical (predictive) and an established process-based approach (DNDC model).
  • Funding Agency
    • TEAGASC WALSH FELLOWSHIP
  • Date From
    • 2007
  • Date To
    • 2010
  • Title
    • CCFLUX
  • Summary
    • Measurement and modelling of annual greenhouse gas budgets for agricultural crops using eddy covariance towers and static chambers.
  • Funding Agency
    • EPA
  • Date From
    • 2001
  • Date To
    • 2007
  • Title
    • GREENGRASS
  • Summary
    • Measurement and modelling of greenhouse gas emissions from European grasslands
  • Funding Agency
    • EU
  • Date From
    • 2001
  • Date To
    • 2004
  • Title
    • Greenhouse gas emissions from European grasslands: field manipulation studies
  • Funding Agency
    • Teagasc
  • Date From
    • 2007
  • Date To
    • 2010
  • Title
    • Legume Futures
  • Summary
    • This research will deliver knowledge and technology for the optimisation of the use of legumes in European agricultural systems and promote the partnerships needed to support the public policy outcomes sought. By integrating the Consortium's extensive set of existing field case studies, modelling and knowledge base, the project will test, validate and deliver novel cropping systems. This network of 18 case studies, in 12 countries, will be the focus of interaction with farmers, SMEs, other businesses, and policy makers. Outputs will include system-optimised cropping plans for each pedo-climatic region, input into existing farm-planning tools, local on-farm demonstrations, a socio-economic analysis that will enable local economic assessment of cropping systems, and an ecological assessment of the effects of relevant farming system changes on greenhouse gas and nitrogen budgets, biodiversity and soil health from the farm to the continental scale. A book on legume-supported eco-efficient farming systems covering all aspects of the use of legumes in Europe will be published. The research is planned around the appreciation of how nitrogen fertilisation and the production and use of plant protein lie at the heart of many of the global, regional and local environmental challenges arising from agriculture. The project will take a novel strategic approach to knowledge interaction and delivery, in order to enhance and pool existing knowledge platforms and databases. It will then deliver the results into the farming community, commercial use, and policy practice beyond the life of the project. The project will facilitate wide access to new and existing knowledge and technologies and it will promote awareness of the role of legumes in the development of sustainable supply chains and consumption patterns. All research results and products will be put in the public domain, and partnership with all the agents of change, including policy makers, will be a key element of the work.
  • Funding Agency
    • EU
  • Date From
    • 2010
  • Date To
    • 2014

Keywords

Agri Environment; Agronomy; Algae; Chloroplasts; Plant Biochemistry; Plant physiology; Soil Science

Recognition

Awards and Honours

PhD 1986


Last updated 8 June 2015 by biodiversity@tcd.ie.