1. 2009
2. The impacts of elavated ozone on plant vitality and carbon cycling in wetlands

   Awdur: Williamson, J. L., Awst 2009

   Goruchwylydd: Mills, G. (Unigolyn allanol) (Goruchwylydd) & Freeman, C. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. The effects of water table drawdown and catchment management on DOC export and water quality

   Awdur: Willis, N., Ion 2009

   Goruchwylydd: Freeman, C. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

4. 2008
5. The effects of a changing climate on the biogeochemistry of peat accumulating wetlands

   Awdur: Ellis, T., Gorff 2008

   Goruchwylydd: Freeman, C. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

6. 2007
7. The Response of Extracellular Phenol Oxidase Activity to Environmental Change, and the Implications for the Stability of Soil Carbon Stores

   Awdur: Toberman, H., Hyd 2007

   Goruchwylydd: Freeman, C. (Goruchwylydd), Evans, C. (Goruchwylydd) & Fenner, N. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

8. From soil to stream: Spatial and temporal variations in the decomposition, generation and transport of Dom.

   Awdur: Cork, L. G., Ebr 2007

   Goruchwylydd: Freeman, P. C. (Goruchwylydd) & Thomas, P. D. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

9. 2006
10. Climate change and dissolved organic carbon : impacts on drinking water supplies

    Awdur: Jones, T., Ion 2006

    Goruchwylydd: Freeman, C. (Goruchwylydd)

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

11. 2005
12. Biogeochemical Implications of Plant-Soil Interactions in Peatland Ecosystems

    Awdur: Bonnett, S. A. F., Awst 2005

    Goruchwylydd: Freeman, C. (Goruchwylydd)

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

13. 2003
14. The removal of linear alkylbenzene sulphonate (LAS) in constructed wetlands

    Awdur: Thomas, R., Maw 2003

    Goruchwylydd: Freeman, C. (Goruchwylydd)

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

15. 2002
16. The effects of climate change on dissolved organic carbon release from peatlands

    Awdur: Fenner, N., Ion 2002

    Goruchwylydd: Freeman, C. (Goruchwylydd)

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

17. 2000
18. The significance of enzymes in the biogeochemical functioning of constructed wetlands

    Awdur: Shackle, V. J., Meh 2000

    Goruchwylydd: Freeman, C. (Goruchwylydd)

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth