Abstract
Possible interactions between soil enzymes and thebiogeochemistry of wetlands were investigated duringa field-based drought simulation. Under control(waterlogged) conditions, correlations were foundbetween the activity of the enzyme B-glucosidase andtwo properties associated with carbon cycling, namelyi) CH4 release r = 0.79,p lt 0.01) and ii) dissolvedorganic carbon concentration (r= -0.81, p lt 0.01). In contrast,the transition to drought conditions resulted in correlations betweenB-glucosidase activity and certain mineralisationprocesses, namely the release of mg and Ca(r = 0.72, p lt 0.05). Sulphataseactivity correlated with changes in sulphate concentration during the droughtsimulation (r = 0.73, p lt 0.05).Further support for the suggested enzymic involvement in biogeochemicalprocesses was found in laboratory studies. Theseexperiments indicated that increasing the abundance ofB-glucosidase could stimulate trace gas emissions(p lt 0.001) and increase the concentration ofmagnesium and calcium (p lt 0.05). Increasedsulphatase abundance caused a suppression of methane emissions(p = 0.053).
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References
Braekke FH (1981) Hydrochemistry of high altitude catchments in southern Norway. 3. Dynamics in waterflow and in release-fixation of sulphate, nitrate and ammonium. Norsk Institutt. for Skogforskning 36: 1-21
Chrost RJ &Krambeck HJ (1986) Fluorescence correction for measurements of enzyme activity in natural waters using methylumbelliferyl-substrates. Arch. Hydrobiol 106: 79-90
Cicerone RJ &Oremland RS (1988) Biogeochemical aspects of atmospheric methane. Global Biogeochem. Cycles 2: 299-327
Freeman C, Hudson JA, Lock MA &Reynolds B (1993a) A field-based approach to investigating potential impacts of climatic-change-induced drought upon wetlands. In: Kundzewicz ZW, Rosbjerg D, Simonovic SP &Takeuchi K (Eds) Extreme Hydrological Events: Precipitation, Floods and Droughts (pp 151-156). International Association of Hydrological Sciences Press, Wallingford
Freeman C, Lock MA &Reynolds B (1993b) Impacts of climatic change on peatland hydrochemistry; a laboratory based experiment. Chem. Ecol. 8: 49-59
Freeman C, Lock MA &Reynolds B (1993c) Fluxes of carbon dioxide, methane and nitrous oxide from a Welsh peatland following simulation of water table draw-down: Potential feed-back to climatic change. Biogeochemistry 19: 51-60
Freeman C, Gresswell R, Guasch H, Hudson J, Lock MA, Reynolds B, Sabater F &Sabater S (1994a) The role of drought in the impact of climatic change on the microbiota of peatland streams. Freshwat. Biol. 32: 223-230
Freeman C, Hudson J, Lock MA, Reynolds B &Swanson C (1994b) A possible role of sulphate in the suppression of wetland methane fluxes following drought. Soil Biol. Biochem. 26: 1439-1442
Freeman C, Liska G, Ostle N, Jones SE &Lock MA (1995) The use of fluorogenic substrates for measuring enzyme activity in peatlands. Pl. Soil 175: 147-152
Gammelgaard A, Freeman C &Lock MA (1992) The measurement of electron transport system activity in sphagnum derived peat. Soil Biol. Biochem. 25: 505-507
Heathwaite AL (1990) The effect of drainage on nutrient release from fen peat and its implications for water quality; a laboratory simulation. Wat. Air Soil Polln. 49: 159-173
Immirzi P, Maltby E &Clymo RS. (1992) The Global Status of Peatlands and Their Role in Carbon Cycling. Friends of the Earth, London
Kadlec RH &Tilton DL (1979) The use of freshwater wetlands as a tertiary wastewater treatment alternative. CRC Crit. Rev. Environ. Control 9: 185-212
K¨uster E. (1993) The microbiology of peat. In: Heathwaite AL &G¨ottlich Kh (Eds) Mires: Process, Exploitation and Conservation (pp 311-324). J. Wiley, Chichester
Lugo AE, Brown S &Brinson MM (1989) Concepts in wetland ecology. In: Lugo AE, Brown S &Brinson MM (Eds) Ecosystems of the World 15 (pp 53-85). Elsevier, Amsterdam
Manabe S & Weatherald RT (1986) Reduction in summer soil wetness induced by an increase in atmospheric carbon dioxide. Science 232: 626-628
Martikainen PJ, Ohtenen R, Silvola J &Vuorinen A. (1994) The effects of fertilisation on forest soil biology. In: Martikainen PJ (Ed) Effect of Fertilisation on Forest Ecosystem (pp 40-79). Jyvaskyla University Printing House &Sisasuomi Oy, Jyvaskyla
Mitchell JFB &Warrilow DA (1987) Summer dryness in northern mid-latitudes due to increased carbon dioxide. Nature 330: 238-240
Mitsch WJ &Gosselink JG (1993) Wetlands. Van Nostrand Reinhold, New York
Moore TR &Knowles R (1989) The influence of water table levels on methane and carbon dioxide emissions from peatland soils. Can. J. Soil Sci. 69: 33-38
Nannipieri P, Muccini L &Ciardi C (1983) Microbial biomass and enzyme activities: Production and persistence. Soil Biol. Biochem. 15: 679-685
Ogden JG (1982) Seasonal mass balance of major ions in 3 small watersheds in a maritime environment. Wat. Air Soil Polln. 17: 119-130
Oremland RS (1988) Biogeochemistry of methanogenic bacteria. In: Zhender AJB (Ed) Biology of Anaerobic Micro-Organisms (pp 641-705). J Wiley, New York
Pind A, Freeman C &Lock MA(1994)Enzymic degradation of phenolic materials in peatlandsmeasurement of phenol oxidase activity. Pl. Soil 159: 227-231
Schothorst CJ (1977) Subsidence of low moor peat soils in the western Netherlands. Geoderma 17: 265-291
Sinsabaugh RL (1994) Enzymic analysis of microbial pattern and process. Biol. Fert. Soil. 17: 69-74
Sinsabaugh RL, Osgood MP &Findlay S (1994) Enzymatic models for estimating decomposition rates of particulate detritus. J. N. Am. Benthol. Soc. 13: 160-169
Skujins J. (1978) History of abiontic soil enzyme research. In: Burns RG (Ed) Soil Enzymes (pp 1-50). Academic Press, New York
Tabatabai MA (1982) Soil enzymes. In: Page AL (Ed) Methods of Soil Analysis; Part 2, Chemical and Microbiological Properties (pp 903-947). American Society of Agronomy, Soil Science Society of America, Madison, WI
Thomas KL, Benstead J, Davies KL &Lloyd D (1996) Role of wetland plants in the diurnal control of CH4 &CO2 fluxes in peat. Soil Biol. Biochem. 28: 17-23
Valiela I. (1995) Marine Ecological Processes. Springer Verlag, New York
Wetzel RG (1991) Extracellular enzymatic interactions: Storage, redistribution, and interspecific communication. In: Chrost RJ (Ed) Microbial Enzymes in Aquatic Environments (pp 6-28). Springer-Verlag, New York
Wieder RK, Lang GE &Granus VA (1987) Sulphur transformations in sphagnum-derived peat during incubation. Soil Biol. Biochem. 19: 101-106
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FREEMAN*, C., LISKA, G., OSTLE, N. et al. Enzymes and biogeochemical cycling in wetlands during a simulated drought. Biogeochemistry 39, 177–187 (1997). https://doi.org/10.1023/A:1005872015085
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DOI: https://doi.org/10.1023/A:1005872015085