Professional summary

Research Interests

I am a Senior Research Scientist interested in the trace gas fluxes from various ecosystems, including peatlands and agricultural systems, especially bioenergy crops and the associated land-use change and have worked on projects in the Arctic, Sub-Antarctic and Tropics as well as temperate ecosystems. My main research focuses on measuring and interpreting biosphere-atmosphere-exchange fluxes of trace gases such as greenhouse gases (CO2, N2O, CH4), NO and ozone depleting gases (methyl halides and volatile organic compounds - VOCs) and the cycling of carbon and nitrogen in ecosystems. My work also involves using gas chromatography (GC-ECD/FID/MS), and new technologies such as quantum cascade laser (QCL), cavity ring-down laser and ion chromatography (IC).

Current research focuses on nitrogen use efficiency of rice cropping systems in India and greenhouse gas fluxes from oil palm plantations in Malaysia and Indonesia focusing on sustainability issues and restoration options.

I am the Laboratory Manager for the Gas Chromatography Laboratory, the key facility for trace gas analysis at CEH Edinburgh which involves managing and mentoring junior staff.

Brief CV

2015- present Biogeochemist at Natural Environment Research Council, CEH Edinburgh research station, Bush Estate, Penicuik, EH26 0QB – Band 5.

2009 - 2015 Biogeochemist at Natural Environment Research Council, CEH Edinburgh research station, Bush Estate, Penicuik, EH26 0QB – Band 6.

2007 - 2009 Biogeochemist at Natural Environment Research Council, CEH Edinburgh research station, Bush Estate, Penicuik, EH26 0QB – Band 7.

2003 - 2007 PhD student at the University of Edinburgh.

1998 - 2003 Student at Technical University Braunschweig, Germany.

1997 - 1998 Niedersächsisches Landesamt für Ökologie, Forschungsstelle Küste, Außenstelle Wilhelmshaven, Germany (Lower Saxony Department of Ecology – Marine Ecology), Ecology Internship.


PhD, jointly between Schools of GeoSciences and Chemistry at the University of Edinburgh, 2007

Degree in Geoecology (Diplom Geoökologie) obtained from Technical University Braunschweig, Germany (Technische Universität Carolo-Wilhelmina zu Braunschweig). First Class, 2003


Recent Publications:

Drewer, J., Kuling, H. J., Cowan, N., Majalap, N., Sentian, J., and Skiba, U.: Comparing Soil Nitrous Oxide and Methane Fluxes From Oil Palm Plantations and Adjacent Riparian Forests in Malaysian Borneo, Frontiers in Forests and Global Change, 4, 10.3389/ffgc.2021.738303, 2021.

Drewer, J., Leduning, M. M., Griffiths, R. I., Goodall, T., Levy, P. E., Cowan, N., Comynn-Platt, E., Hayman, G., Sentian, J., Majalap, N., and Skiba, U. M.: Comparison of greenhouse gas fluxes from tropical forests and oil palm plantations on mineral soil, Biogeosciences, 18, 1559-1575, 10.5194/bg-18-1559-2021, 2021.

Drewer, J., Leduning, M. M., Purser, G., Cash, J. M., Sentian, J., and Skiba, U. M.: Monoterpenes from tropical forest and oil palm plantation floor in Malaysian Borneo/Sabah: emission and composition, Environmental Science and Pollution Research, 28, 31792-31802, 10.1007/s11356-021-13052-z, 2021.

Pickard, A., White, S., Bhattacharyya, S., Carvalho, L., Dobel, A., Drewer, J., Jamwal, P., and Helfter, C.: Greenhouse gas budgets of severely polluted urban lakes in India, Science of The Total Environment, 149019, 10.1016/j.scitotenv.2021.149019, 2021.

Purser, G., Drewer, J., Heal, M. R., Sircus, R. A. S., Dunn, L. K., and Morison, J. I. L.: Isoprene and monoterpene emissions from alder, aspen and spruce short-rotation forest plantations in the United Kingdom, Biogeosciences, 18, 2487-2510, 10.5194/bg-18-2487-2021, 2021.

Purser, G., Drewer, J., Morison, J. I. L., and Heal, M. R.: A first assessment of the sources of isoprene and monoterpene emissions from a short-rotation coppice Eucalyptus gunnii bioenergy plantation in the United Kingdom, Atmospheric Environment, 262, 118617,10.1016/j.atmosenv.2021.118617, 2021.