Professor Chris Freeman
Emeritus Professor
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Effects of Climate Change on Peatland Reservoirs: A DOC Perspective
Fenner, N., Meadham, J., Jones, T., Hayes, F. & Freeman, C., Jul 2021, In: Global Biogeochemical Cycles. 35, 7, e2021GB006992.Research output: Contribution to journal › Article › peer-review
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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. 1814-1821Research output: Contribution to journal › Article › peer-review
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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. 345-354Research output: Contribution to journal › Article › peer-review
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Evaluation of algal bloom mitigation and nutrient removal in floating constructed wetlands with different macrophyte species
Fenner, N., West, M., Gough, R. & Freeman, C., Nov 2017, In: Ecological Engineering. 108, Part B, p. 581-588Research output: Contribution to journal › Article › peer-review
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Woody litter protects peat carbon stocks during drought
Fenner, N. & Freeman, C., 16 Mar 2020, In: Nature Climate Change. 10, 4, p. 363-369Research output: Contribution to journal › Article › peer-review
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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. 785Research output: Contribution to journal › Article › peer-review
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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. 61-67Research output: Contribution to journal › Article › peer-review
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Peatland geoengineering: an alternative approach to terrestrial carbon sequestration
Freeman, C., Fenner, N. & Shirsat, A. H., 13 Sept 2012, In: Philosophical Transactions of the Royal Society A. 370, 1974, p. 4404-4421Research output: Contribution to journal › Article › peer-review
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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. 195-198Research output: Contribution to journal › Article › peer-review
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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. 1663-1667Research output: Contribution to journal › Article › peer-review
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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. 267-277Research output: Contribution to journal › Article › peer-review
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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. 147-152Research output: Contribution to journal › Article › peer-review
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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. 149Research output: Contribution to journal › Article › peer-review
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Decomposition as a regulator of carbon accretion in mangroves: a review
Friesen, S., Dunn, C. & Freeman, C., Apr 2018, In: Ecological Engineering. 114, p. 173-178Research output: Contribution to journal › Article › peer-review
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High intensity fire accelerates accumulation of a stable carbon pool in permafrost peatlands under climate warming
Gao, C., Wang, G., Cong, J., Freeman, C., Jiang, M. & Qin, L., 15 Jun 2023, In: Catena. 227, 107108.Research output: Contribution to journal › Article › peer-review
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Dissolved organic carbon and trihalomethane precursor removal at a UK upland water treatment works
Gough, R. S., Holliman, P. J., Willis, N. & Freeman, C., 15 Jan 2014, In: Science of the Total Environment. 468-469, p. 228-239Research output: Contribution to journal › Article › peer-review
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Influence of habitat on the quantity and composition of leachable carbon in the O2 horizon: Potential iplications for potable water treatment
Gough, R. S., Holliman, P. J., Willis, N., Jones, T. G. & Freeman, C., 27 Nov 2012, In: Lake and Reservoir Management. 28, 4, p. 282-292Research output: Contribution to journal › Article › peer-review
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UV-visible absorbance spectroscopy as a proxy for peatland dissolved organic carbon (DOC) quantity and quality: considerations on wavelength and absorbance degradation
Gough, R. S., Peacock, M., Evans, C. D., Fenner, N., Freeman, C., Gough, R., Jones, T. G. & Lebron, I., 4 Apr 2014, In: Environmental Science: Processes and Impacts. 50, 6, p. 1445-1461Research output: Contribution to journal › Article › peer-review
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Dissolved organic carbon and trihalomethane formation potential removal during coagulation of a typical UK upland water with alum, PAX-18 and PIX-322
Gough, R. S., Holliman, P. J., Heard, T. R. & Freeman, C., 1 Dec 2014, In: Journal of Water Supply: Research and Technology - AQUA. 63, 8, p. 650-660Research output: Contribution to journal › Article › peer-review
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The impact of climate change on the treatability of dissolved organic matter (DOM) in upland water supplies: a UK perspective
Gough, R. S., Ritson, J. P., Graham, N. J., Templeton, M. R., Clark, J. M., Gough, R. & Freeman, C., 10 Jan 2014, In: Science of the Total Environment. 473-474, p. 714-730Research output: Contribution to journal › Article › peer-review
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Influence of water table depth on pore water chemistry and Trihalomethane Formation potential in peatlands
Gough, R. S., Gough, R., Holliman, P. J., Fenner, N., Peacock, M. & Freeman, C., 1 Feb 2016, In: Water Environment Research. 88, 2, p. 107-117Research output: Contribution to journal › Article › peer-review
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Characterisation of algogenic organic matter during an algal bloom and its implications for trihalomethane formation
Gough, R. S., Gough, R., Holliman, P. J., Cooke, G. M. & Freeman, C., 1 Sept 2015, In: Sustainability of Water Quality and Ecology. 6, September, p. 11-19Research output: Contribution to journal › Article › peer-review
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Tracing dissolved organic carbon and trihalomethane formation potential between source water and finished drinking water at a lowland and an upland UK catchment
Gough, R. S., Brooks, E., Freeman, C., Gough, R. & Holliman, P. J., 15 Aug 2015, In: Science of the Total Environment. 537, p. 203-212Research output: Contribution to journal › Article › peer-review
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Relationships between reservoir water quality and catchment habitat type
Gough, R., Cohen, Y., Fenner, N., Cannon, J. & Freeman, C., 1 Jan 2016, In: International Journal of Environmental Technology and Management. 19, 1, p. 16-39Research output: Contribution to journal › Article › peer-review
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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. 582-593Research output: Contribution to journal › Article › peer-review
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Temporal variations in dissolved organic carbon concentrations in upland and lowland lakes in North Wales
Hughes, D. D., Holliman, P. J., Jones, T. & Freeman, C., 1 Jun 2013, In: Water and Environment Journal. 27, 2, p. 275-283Research output: Contribution to journal › Article › peer-review
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Assessment of potential climate change impacts on peatland dissolved organic carbon release and drinking water treatment from laboratory experiments
Hughes, D. D., Tang, R., Clark, J. M., Bond, T., Graham, N., Hughes, D. & Freeman, C., 1 Feb 2013, In: Environmental Pollution. 173, p. 270-277Research output: Contribution to journal › Article › peer-review
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Rapid, Semi-Automated Fractionation of Freshwater Dissolved Organic Carbon Using DAX 8 (XAD 8) and XAD 4 Resins in Tandem
Hughes, D., Holliman, P., Jones, T., Jones, T., Butler, A. J. & Freeman, C., 22 Nov 2016, In: Natural Science. 8, 11, p. 487-498Research output: Contribution to journal › Article › peer-review
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Waste water treatment.
Jones, D. L., Freeman, C., Thomas, B. (Editor), Murphy, D. (Editor) & Murray, B. (Editor), 1 Jan 2003, Encyclopaedia of applied plant science. 2003 ed. Academic Press, p. 772-781Research output: Chapter in Book/Report/Conference proceeding › Chapter
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Waste Water Treatment
Jones, D., Freeman, C. & Sánchez-Rodríguez, A. R., 1 Jan 2017, Encyclopedia of Applied Plant Sciences. Thomas, B., Murray, B. G. & Murphy , D. J. (eds.). 2 ed. Elsevier, Vol. 3. p. 352 10 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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Impacts of elevated atmosphere ozone on peatland below-ground DOC characteristics.
Jones, T. G., Freeman, C., Lloyd, A. & Mills, G., 1 Jun 2009, In: Ecological Engineering. 35, 6, p. 971-977Research output: Contribution to journal › Article › peer-review
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An experimental use of floating treatment wetlands (FTWs) to reduce phytoplankton growth in freshwaters
Jones, T., Willis, N., Gough, R. & Freeman, C., Feb 2017, In: Ecological Engineering. 99, p. 316-323Research output: Contribution to journal › Article › peer-review
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The greenhouse gas (GHG) emissions associated with aquatic carbon removal during drinking water treatment
Jones, T., Evans, C. D. & Freeman, C., 1 Jul 2016, In: Aquatic Sciences. 78, 3, p. 561-572Research output: Contribution to journal › Article › peer-review
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Transformations in DOC along a source to sea continuum; impacts of photo-degradation, biological processes and mixing
Jones, T. G., Evans, C. D., Jones, D., Hill, P. W. & Freeman, C., 1 Jul 2016, In: Aquatic Sciences. 78, 3, p. 433-446Research output: Contribution to journal › Article › peer-review
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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. 207-212Research output: Contribution to journal › Article › peer-review
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Soil enzyme analysis for leaf litter decomposition in global wetlands.
Kang, H. & Freeman, C., 1 Dec 2009, In: Communications in Soil Science and Plant Analysis. 40, 21-22, p. 3323-3334Research output: Contribution to journal › Article › peer-review
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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. 263-272Research output: Contribution to journal › Article › peer-review
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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. 45-50Research output: Contribution to journal › Article › peer-review
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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. 103-110Research output: Contribution to journal › Article › peer-review
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Microbes, Environmental Change and the Global Carbon Cycle
Kang, H. & Freeman, C., 1 Mar 2016, Climate Change and Microbial Ecology: Current Research and Future Trends. Marxsen, J. (ed.). Caister Academic Press, p. 153-166Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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Biologically driven DOC release from peatlands during recovery from acidification
Kang, H., Kwon, M. J., Kim, S., Lee, S., Jones, T. G., Johncock, A. C., Haraguchi , A. & Freeman, C., 18 Sept 2018, In: Nature Communications. 9, 3807.Research output: Contribution to journal › Article › peer-review
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Water table fluctuation in peatlands facilitates fungal proliferation, impedes Sphagnum growth and accelerates decomposition
Kim, J., Rochefort, L., Hugron, S., Alqulaiti, Z., Dunn, C., Pouliot, R., Jones, T., Freeman, C. & Kang, H., 22 Apr 2021, In: Frontiers Earth Science. 8, 579329.Research output: Contribution to journal › Article › peer-review
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Functional and structural responses of bacterial and methanogen communities to 3-year warming incubation in different depths of peat mire
Kim, S. Y., Freeman, C., Fenner, N. & Kang, H., 1 Jun 2012, In: Applied Soil Ecology. 57, p. 23-30Research output: Contribution to journal › Article › peer-review
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Comparative analysis of soil microbial communities and their responses to the short-term drought in bog, fen, and riparian wetlands
Kim, S. Y., Lee, S. H., Freeman, C., Fenner, N. & Kang, H., 1 Nov 2008, In: Soil Biology and Biochemistry. 40, 11, p. 2874-2880Research output: Contribution to journal › Article › peer-review
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Changing thermal sensitivity of bacterial communities and soil enzymes in a bog peat in spring, summer and autumn
Kim, S.-Y., Zhou, X., Freeman, C. & Kang, H., 1 May 2022, In: Applied Soil Ecology. 173, 104382.Research output: Contribution to journal › Article › peer-review
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Elevated CO2 and high salinity enhance the abundance of sulfate reducers in a salt marsh ecosystem
Kim, S.-Y., Freeman, C., Lukac, M., Lee, S.-H., Kim, S. D. & Kang, H., Mar 2020, In: Applied Soil Ecology. 147, 103386.Research output: Contribution to journal › Article › peer-review
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Attenuation of Methane Oxidation by Nitrogen Availability in Arctic Tundra Soils
Lee, J., Yun, J., Yang, Y., Jung, J. Y., Lee, Y. K., Yuan, J., Ding, W., Freeman, C. & Kang, H., 14 Feb 2023, In: Environmental Science and Technology. 57, 6, p. 2647-2659 13 p.Research output: Contribution to journal › Article › peer-review
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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. 1475-1491Research output: Contribution to journal › Article › peer-review
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Substrate sources regulate spatial variation of metabolically active methanogens from two contrasting freshwater wetlands
Lin, Y. X., Liu, D. Y., Ding, W. X., Kang, H. J., Freeman, C., Yuan, J. J. & Xiang, J., 19 Aug 2015, In: Applied Microbiology and Biotechnology. 99, 24, p. 10779-10791Research output: Contribution to journal › Article › peer-review
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Divergent responses of wetland methane emissions to elevated atmospheric CO2 dependent on water table
Lin, Y., Yuan, J., Liu, D., Kang, H., Freeman, C., Hu, H.-W., Ye, G. & Ding, W., 15 Oct 2021, In: Water Research. 205, 117682.Research output: Contribution to journal › Article › peer-review