Professor Chris Freeman

Emeritus Professor

  1. 2008
  2. Published

    Summer drought effects upon soil and litter extracellular phenol oxidase activity and soluble carbon release in an upland Calluna heathland

    Toberman, H., Evans, C., Freeman, C., Fenner, N., White, M., Emmett, B. & Artz, R. R., 1 Jun 2008, In: Soil Biology and Biochemistry. 40, 6, p. 1519-1532

    Research output: Contribution to journalArticlepeer-review

  3. Published

    Peatlands and the carbon cycle: from local processes to global implications - a synthesis.

    Limpens, J., Berendse, F., Blodau, C., Canadell, J. G., Freeman, C., Holden, J., Roulet, N., Rydin, H. & Schaepman-Strub, G., 1 Jan 2008, In: Biogeosciences. 5, 5, p. 1475-1491

    Research output: Contribution to journalArticlepeer-review

  4. 2007
  5. Published

    Elevated CO2 effects on peatland plant community carbon dynamics and DOC production.

    Fenner, N., Ostle, N. J., McNamara, N., Sparks, T., Harmens, H., Reynolds, B. & Freeman, C., 1 Jun 2007, In: Ecosystems. 10, 4, p. 635-647

    Research output: Contribution to journalArticlepeer-review

  6. Published

    High nitrogen availability reduces polyphenol content in Sphagnum peat

    Bragazza, L. & Freeman, C., 15 May 2007, In: Science of the Total Environment. 377, 2-3, p. 439-443

    Research output: Contribution to journalArticlepeer-review

  7. Published

    Evidence against recent climate-induced destabilisation of soil carbon from C-14 analysis of riverine dissolved organic matter

    Evans, C. D., Freeman, C., Cork, L. G., Thomas, D. N., Reynolds, B., Billett, M. F., Garnett, M. H. & Norris, D., 13 Apr 2007, In: Geophysical Research Letters. 34, 7, p. L07407

    Research output: Contribution to journalArticlepeer-review

  8. Published

    Interactions between elevated CO2 and warming could amplify DOC exports from peatland catchments.

    Fenner, N., Freeman, C., Lock, M. A., Harmens, H., Reynolds, B. & Sparks, T., 29 Mar 2007, In: Environmental Science and Technology. 41, 9, p. 3146-3152

    Research output: Contribution to journalArticlepeer-review

  9. Published

    DOC export and carbon loss from UK upland soils: similarities and differences between peats and organo-mineral soils.

    Evans, C., Freeman, C., Billett, M., Clark, J. M., Tobermann, H., Chapman, P., Cork, L. G., Reynolds, B. & Thomas, D. N., 1 Jan 2007.

    Research output: Contribution to conferencePaper

  10. 2006
  11. Published

    Atmospheric nitrogen deposition promotes carbon loss from peat bogs

    Bragazza, L., Freeman, C., Jones, T., Rydin, H., Limpens, J., Fenner, N., Ellis, T., Gerdol, R., Hajek, T., Iacumin, P., Kutnar, L., Tahvanainen, T. & Toberman, H., 19 Dec 2006, In: Proceedings of the National Academy of Sciences of the USA. 103, 51, p. 19386-19398

    Research output: Contribution to journalArticlepeer-review

  12. Published

    Seasonal variations in decomposition processes in a valley-bottom riparian peatland

    Bonnett, S. A., Ostle, N. & Freeman, C., 1 Nov 2006, In: Science of the Total Environment. 370, 2-3, p. 561-573

    Research output: Contribution to journalArticlepeer-review

  13. Published

    A novel approach to studying the effects of temperature on soil biogeochemistry using a thermal gradient bar

    Fenner, N., Dowrick, D. J., Lock, M. A., Rafarel, C. R. & Freeman, C., 1 Sept 2006, In: Soil Use and Management. 22, 3, p. 267-273

    Research output: Contribution to journalArticlepeer-review

  14. Published

    Sulphate reduction and the suppression of peatland methane emissions following summer drought

    Dowrick, D. J., Freeman, C., Lock, M. A. & Reynolds, B., 1 Jun 2006, In: Geoderma. 132, 3-4, p. 384-390

    Research output: Contribution to journalArticlepeer-review

  15. Published

    Exogenous enzyme supplements to promote treatment efficiency in constructed wetlands.

    Shackle, V., Freeman, C. & Reynolds, B., 15 May 2006, In: Science of the Total Environment. 361, 1-3, p. 18-24

    Research output: Contribution to journalArticlepeer-review

  16. Published

    DOC export to upland waters: old or new carbon?

    Evans, C., Cork, L., Freeman, C., Thomas, D. N. & Reynolds, B., 1 Jan 2006.

    Research output: Contribution to conferencePaper

  17. Published

    Storm Induced Dissolved Organic Matter Release.

    Cork, L., Evans, C., Freeman, C., Thomas, D. N. & Reynolds, B., 1 Jan 2006.

    Research output: Contribution to conferencePaper

  18. Published

    Storm Induced Dissolved Organic Matter Release.

    Cork, L., Evans, C., Freeman, C., Thomas, D. N. & Reynolds, B., 1 Jan 2006.

    Research output: Contribution to conferencePaper

  19. 2005
  20. Published

    Microbial community changes in heathland soil communities along a geographical gradient: interaction with climate change manipulations.

    Sowerby, A., Emmett, B., Beier, C., Tietema, A., Penuelas, J., Estiatre, M., Van Meeteren, M. J., Hughes, S. & Freeman, C., 1 Oct 2005, In: Soil Biology and Biochemistry. 37, 10, p. 1805-1813

    Research output: Contribution to journalArticlepeer-review

  21. Published

    Observations of a seasonally shifting thermal optimum in peatland carbon-cycling processes; implications for the global carbon cycle and soil enzyme methodologies.

    Fenner, N., Freeman, C. & Reynolds, B., 1 Oct 2005, In: Soil Biology and Biochemistry. 37, 10, p. 1814-1821

    Research output: Contribution to journalArticlepeer-review

  22. Published

    Nutrient limitation and enzyme activities during litter decomposition of nine wetland species in relation to litter N : P ratios

    Gusewell, S. & Freeman, C., 1 Aug 2005, In: Functional Ecology. 19, 4, p. 582-593

    Research output: Contribution to journalArticlepeer-review

  23. Published

    Hydrological effects on the diversity of phenolic degrading bacteria in a peatland: implications for carbon cycling.

    Fenner, N., Freeman, C. & Reynolds, B., 1 Jul 2005, In: Soil Biology and Biochemistry. 37, 7, p. 1277-1287

    Research output: Contribution to journalArticlepeer-review

  24. Published

    Shifts of soil enzyme activities in wetlands exposed to elevated CO2

    Kang, H., Kim, S. Y., Fenner, N. & Freeman, C., 20 Jan 2005, In: Science of the Total Environment. 337, 1-3, p. 207-212

    Research output: Contribution to journalArticlepeer-review

  25. Published

    N-Acetylglucosaminidase activities in wetlands: a global survey

    Kang, H. J., Freeman, C., Park, S. S. & Chun, J., 1 Jan 2005, In: Hydrobiologia. 532, p. 103-110

    Research output: Contribution to journalArticlepeer-review

  26. 2004
  27. Published

    Effects of elevated atmospheric CO2 concentrations on soil microorganisms.

    Freeman, C., Kim, S. Y., Lee, S. H. & Kang, H., 1 Dec 2004, In: Journal of Microbiology. 42, 4, p. 267-277

    Research output: Contribution to journalArticlepeer-review

  28. Published

    A regulatory role for phenol oxidase during decomposition in peatlands.

    Freeman, C., Ostle, N., Fenner, N. & Kang, H., 1 Oct 2004, In: Soil Biology and Biochemistry. 36, 10, p. 1663-1667

    Research output: Contribution to journalArticlepeer-review

  29. Published

    Export of dissolved organic carbon from peatlands under elevated carbon dioxide levels.

    Freeman, C., Fenner, N., Ostle, N. J., Kang, H., Dowrick, D. J., Reynolds, B., Lock, M. A., Sleep, D., Hughes, S. & Hudson, J., 8 Jul 2004, In: Nature. 430, 6996, p. 195-198

    Research output: Contribution to journalArticlepeer-review

  30. Published

    Peatland carbon efflux partitioning reveals that Sphagnum photosynthate contributes to the DOC pool

    Fenner, N., Ostle, N., Freeman, C., Sleep, D. & Reynolds, B., Feb 2004, In: Plant and Soil. 259, 1-2, p. 345-354

    Research output: Contribution to journalArticlepeer-review

  31. 2003
  32. Published

    Waste water treatment.

    Jones, D. L., Freeman, C., Thomas, B. (ed.), Murphy, D. (ed.) & Murray, B. (ed.), 1 Jan 2003, Encyclopaedia of applied plant science. 2003 ed. Academic Press, p. 772-781

    Research output: Chapter in Book/Report/Conference proceedingChapter

  33. 2002
  34. Published

    The influence of hydrochemistry on methane emissions from two contrasting northern wetlands.

    Kang, H. & Freeman, C., 1 Nov 2002, In: Water Air and Soil Pollution. 141, 1-4, p. 263-272

    Research output: Contribution to journalArticlepeer-review

  35. Published

    Climate change - Terrestrial export of organic carbon - Reply

    Evans, C. D., Freeman, C., Monteith, D. T., Reynolds, B. & Fenner, N., 21 Feb 2002, In: Nature. 415, 6874, p. 862

    Research output: Contribution to journalArticlepeer-review

  36. Published

    Contrasted effects of simulated drought on the production and oxidation of methane in a mid-Wales wetland.

    Freeman, C., Nevison, G. B., Kang, H., Hughes, S., Reynolds, B. & Hudson, J. A., 1 Jan 2002, In: Soil Biology and Biochemistry. 34, 1, p. 61-67

    Research output: Contribution to journalArticlepeer-review

  37. 2001
  38. Published

    Effects of elevated CO2 on fen peat biogeochemistry.

    Kang, H., Freeman, C. & Ashendon, T. W., 12 Nov 2001, In: Science of the Total Environment. 279, 1-3, p. 45-50

    Research output: Contribution to journalArticlepeer-review

  39. Published

    Export of organic carbon from peat soils.

    Freeman, C., Evans, C. D., Monteith, D. T., Reynolds, B. & Fenner, N., 23 Aug 2001, In: Nature. 412, 6849, p. 785

    Research output: Contribution to journalArticlepeer-review

  40. Published

    Molecular weight spectra of dissolved organic carbon in a rewetted Welsh peatland and possible implications for water quality.

    Fenner, N., Freeman, C., Hughes, S. & Reynolds, B., 1 Jun 2001, In: Soil Use and Management. 17, 2, p. 106-112

    Research output: Contribution to journalArticlepeer-review

  41. Published

    An enzymatic 'latch' on a global carbon store;- a shortage of oxygen locks up carbon in peatlands by restraining a single enzyme.

    Freeman, C., Ostle, N. J. & Kang, H., 11 Jan 2001, In: Nature. 409, 6817, p. 149

    Research output: Contribution to journalArticlepeer-review

  42. 2000
  43. Published

    Carbon supply and the regulation of emzyme activity in constructed wetlands.

    Shackle, V. J., Freeman, C. & Reynolds, B., 1 Nov 2000, In: Soil Biology and Biochemistry. 32, 13, p. 1935-1940

    Research output: Contribution to journalArticlepeer-review

  44. 1995
  45. Published

    The use of fluorogenic substrates for measuring enzyme activity in peatlands

    Freeman, C., Liska, G., Ostle, N. J. & Lock, M. A., 1 Aug 1995, In: Plant and Soil. 175, 1, p. 147-152

    Research output: Contribution to journalArticlepeer-review

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