References
- Appel, H. M., 1993: Phenolics in ecological interactions: the importance of oxidation. — J. Chem. Ecol. 19: 1521–1553.
- Box, J. D., 1983: Investigation of the Folin-Ciocalteau phenol reagent for the determination of polyphenols substances in natural waters. — Water Res. 17(5): 511–525.
- Boyt, F. L., Bayley, S. E. & Zoltek, J., 1976: Removal of nutrients from treated municipal wastewater by wetland vegetation. — J. Water Pollut. Control Fed. 49: 789–799.
- Brix, H. & Schierup, H., 1989: The use of aquatic macrophytes in water-pollution control. — Ambio 18(2): 100–107.
- Burns, R. G., 1978: Soil Enzymes. — Academic Press, London.
- Cobban, R., Gregson, D. & Phillips, P., 1998: Spring cleaning industry. — Chem. Br. 34(2): 40–42.
- Farahbakhshad, N. & Morrison, G., 1997: Ammonia removal processes for urine in an upflow macrophyte system. — Environ. Sci. Technol. 31: 3314–3317.
- Freeman, C, Lock, M. A., Marxsen, J. & Jones, S. E., 1990: Inhibitory effects of high molecular weight dissolved organic matter upon metabolic processes in biofilms from contrasting rivers and streams. — Freshwat. Biol 24: 159–166.
- Freeman, C, Liska, G., Ostle, N. J., Jones, S. E. & Lock, M. A., 1995: The use of fluorogenic substrates for measuring enzyme activity in peatlands. — Plant Soil 175: 147–152.
- Freeman, C, Liska, G., Ostle, N. J., Lock, M. A., Reynolds, B. & Hudson, J., 1996: Microbial activity and enzymic decomposition processes following peatland water table drawdown. — Plant Soil 180: 121–127.
- Kowalik, P. J., Slater, F. M. & Randerson, P. F., 1996: Constructed wetlands for landfill leachate treatment. — In: Thofelt, L. & Englund, A. (eds): Ecotechnics for a sustainable society, Proceedings from Ecotechnics 95 — International Symposium on Ecological Engineering: 189–200.
- Mckinlay, R. G. & Kasperek, K., 1996: Biological degradation of pesticides using marsh plants. — Scottish Agricultural College Environmental and Food Sciences Research Report, 1995–1996: 16.
- Paul, E. A. & Clark, F. E., 1989: Soil Microbiology and Biochemistry. — Academic Press, London, pp 273.
- Pride, R. E., Nohrstedt, J. S. & Benefield, L. D., 1990: Utilization of created wetlands to upgrade small municipal wastewater treatment systems. — Water, Air, Soil Pollut. 50: 371–385.
- Redding, T., Todd, S. & Midlen, A., 1997: The treatment of aquaculture wastewaters — a botanical approach. — J. Environ. Manage. 50(3): 283–299.
- Reynolds, B., 1984: A simple method for the extraction of soil solution by high speed centrifugation. — Plant Soil 78: 437–440.
- Webb, J. S., Mcginness, S. & Lappin-Scott, H. M., 1998: Metal removal by sulphate-reducing bacteria from natural and constructed wetlands. — J. Appl. Microbiol. 84: 240–248.
- Wetzel, R. G., 1992: Gradient dominated ecosystems: Sources and regulatory functions of dissolved organic matter in freshwater ecosystems. — Hydrobiologia 229: 181–198.
- Wetzel, R. G., 1993: Humic compounds from wetlands: complexation, inactivation, and reactivation of surface-bound and extracellular enzymes. — Verh. Internat. Verein. Limnol. 25: 122–128.
- Wieder, R. K., Heston, K. P., O'hara, E. M., Lang, G. E., Whitehouse, A. E. & Hett, J., 1988: Aluminium retention in a man-made Sphagnum wetland. — Water, Air, Soil Pollut. 37: 177–191.