Dr Karina Anne Marsden

Dr Karina Anne Marsden
Postdoctoral Research Officer

Email: k.marsden@bangor.ac.uk
Tel: 01248 383052

Location: Environment Centre Wales (2nd Floor)

Responsibilities within SENRGy/BU

I am a postdoctoral research officer on a NERC funded research project, titled ‘Uplands-N2O’ in collaboration with Bangor University, Rothamsted Research, Swansea University, Texas A&M University-Kingsville and Leicester University. My role within the project is to quantify emissions of nitrous oxide, a powerful greenhouse gas, from excreta deposited by sheep grazing in upland regions.

I sit on the CNS Women’s Network Steering committee and the SENRGy Athena Swan self-assessment team. I am the CNS representative for the Researcher Development and Concordat Group and the post-doctoral representative for the SENRGy Research Committee.

Qualifications and Membership of Professional Bodies

BSc (Hons) Environmental Science, Bangor University

PhD, Soil and Environmental Science, Bangor University

Member of British Society of Soil Science

Research Interests

Nitrogen cycling in agroecosystems, plant-soil-microbe interactions, greenhouse gas emissions, methods and techniques for monitoring N2O emissions from soil, rhizosphere processes.



Marsden, K.A., Jones, D.L., Chadwick, D.R. 2017. DMPP is ineffective at mitigating N2O emissions from sheep urine patches in a UK grassland under summer conditions. Agriculture, Ecosystems and Environment, In Press.

Sanchez-Martin, L., Beccaccia, A., De Blas, C., Sanz-Cobena, A., Garcia-Rebollar, P., Estellés, Marsden, K.A., Chadwick, D.R., Vallejo, A. 2017. Diet management to effectively abate N2O emissions from surface applied pig slurry. Agriculture, Ecosystems and Environment, 239, 1-11.


Marsden, K.A., Marín-Martínez, A.J., Vallejo, A., Hill, P.W., Jones, D.L., Chadwick, D.R. 2016. The mobility of nitrification inhibitors under simulated urine deposition and rainfall: a comparison between DCD and DMPP. Biology and Fertility of Soils, 52, 491-503.

Marsden, K.A., Jones, D.L., Chadwick, D.R. 2016. Disentangling the effect of sheep urine patch size and nitrogen loading rate on cumulative N2O emissions. Animal Production Science, 56, 265-275.

Marsden, K.A., Jones, D.L., Chadwick, D.R. 2016. The urine patch diffusional area: An important N2O source? Soil Biology and Biochemistry 92, 161-170.


Marsden, K.A., Scowen, M., Hill, P.W., Jones, D.L., Chadwick, D.R. 2015. Plant acquisition and metabolism of the synthetic nitrification inhibitor dicyandiamide and naturally occurring guanidine from agricultural soils. Plant and Soil 395, 201-214.

Hill, P.W., Marsden, K.A., Jones, D.L. (2013). How significant to plant N nutrition is the direct consumption of soil microbes by roots? New Phytologist 199, 948-955.


Quilliam, R.S., Marsden, K.A., Gertler, C., Rousk, J., DeLuca, T.H., Jones, D.L. (2012). Nutrient dynamics, microbial growth and weed emergence in biochar amended soil are influenced by time since application and reapplication rate. Agriculture, Ecosystems and Environment 158, 192-199.