Effects of N deposition on carbon turnover in ombrotrophic peatlands

We are investigating the effects of wet N deposition on microbial carbon turnover and microbial community composition in ombrotrophic peatlands, using the CEH Whim Moss N deposition experiment (in collaboration with Dr. Lucy Sheppard and Ian Leith). Co-limitation of microbial activity due to N and P is investigated on plots with concurrent additions of P+K fertilizer.

Group members:

• Dr. Rebekka Artz
• Pauline Currey (ACES PhD student, with Dr. David Johnson & Dr. Rene van der Wal, University of Aberdeen ACES; Dr. Lorna Dawson, Macaulay Institute).
• Sanna Kivimaki (visiting PhD student, CEH Edinburgh).

Past members:

• Mukunda Phuyal (MSc student) 2007

Collaborators:

• Dr. David Johnson, (University of Aberdeen)
• Dr. Rene van der Wal (Aberdeen Centre for Environmental Sustainability, University of Aberdeen)
• Dr. Lucy Sheppard and Ian Leith (CEH Edinburgh).

Relevant publications:

Phuyal, M., Artz, R.R.E., Sheppard, L. and D. Johnson. (2008) Long-term nitrogen deposition increases phosphorus limitation of bryophytes in an ombrotrophic bog. Plant Ecology 196: 111-121.

Interactions between atmospheric nitrogen deposition and carbon dynamics in peatlands., Currey, P.; Artz, R.; Dawson, L.; van der Wal, R.; Johnson, D., (2008) 12th International Symposium on Microbial Ecology (ISME -12), Cairns, Australia, 17-22 August 2008. Abstract No. 0237.

The impact of nitrogen deposition on carbon dynamics in peatlands., Leterme, P.; Artz, R.R.E.; Johnson, D.; Dawson, L.; Van der Wal, R., (2006) CAPER Conference, Edinburgh on 12-14th April 2006.

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