1. 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

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 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

4. 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

5. 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

6. The effect of peatland rewetting on gaseous and fluvial carbon losses from a Welsh blanket bog

   Awdur: Peacock, M., 1 Awst 2013

   Goruchwylydd: Freeman, C. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

7. 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

8. The characterisation of dissolved organic carbon and its influence on tri-halomethane formation potential

   Awdur: Hughes, D., 1 Mai 2013

   Goruchwylydd: Freeman, C. (Goruchwylydd) & Holliman, P. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

9. Exploring Relationships Between Catchment Dissolved Organic Matter Characteristics and the Formation of Disinfection Byproducts.

   Awdur: Hopes, M., 27 Chwef 2019

   Goruchwylydd: Fenner, N. (Goruchwylydd), Holliman, P. (Goruchwylydd) & Freeman, C. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

10. Sources of error in the estimation of aboveground biomass carbon stocks in mangrove ecosystems

    Awdur: Greer, B., 27 Hyd 2023

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

    Traethawd ymchwil myfyriwr: Meistr mewn Athroniaeth