Abstract
In nutrient impoverished landscapes in southwest Australia, terrestrial litter appears to be important in phosphorus (P) turnover and in the gradual accumulation of P in wetland systems. Little is known about the fate of P leached from litter during the wet season and the associated effects of soil microclimate on microbial activity. The effects of temperature, moisture, and litter leaching on soil microbial activity were studied on a transect across a seasonal wetland in southwestern Australia, after the onset of the wet season. Heterotrophic respiration (CO2 efflux) was higher in the dried lakebed and riparian areas than in upland soils, and higher during the day than at night. There were significant variations in CO2 efflux with time of sampling, largely caused by the effect of temperature. The addition of litter leachate significantly increased CO2 efflux, more significantly in soils from upland sites, which had lower moisture and nutrient contents. There was a difference in response of microbial respiration between upland soils and wetland sediments to litter leachate and wetter, warmer conditions. In general, the litter leachate enhanced heterotrophic microbial respiration, and more significantly at warmer conditions (31 °C). The relative fungal to bacterial ratio was 2.9 – 3.2 for surface litter and 0.7–1.0 for soils, suggesting a fungal dominance in heterotrophic respiration of surface litter, but increased bacterial dominance in soils, especially in exposed sediments in the lakebed.
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References
J.P.E. Anderson K.H. Domsch (1975) ArticleTitleMeasurement of bacterial and fungal contributions to respiration of selected agricultural and forest soils Canadian Journal of Microbiology 21 314–421
J.P.E. Anderson K.H. Domsch (1978) ArticleTitleA physiological method for the quantitative measurement of microbial biomass in soils Soil Biology and Biochemistry 10 215–221
Arnold J. 1990. Perth Wetlands Resource Book, vols. 1–12, Environmental Protection Authority and The Water Authority of Western Australia, Bulletin 266, 396 pp.
M.H. Beare C.L. Neely D.C. Coleman W.L. Hargrove (1990) ArticleTitleA substrate-induced respiration (SIR) method for measurement of fungal and bacterial biomass on plant residue Soil Biology and Biochemistry 22 585–594
P.C. Brookes D.S. Powlson D.S. Jenkinson (1984) ArticleTitlePhosphorus in the soil microbial biomass Soil Biology and Biochemistry 16 169–175
X.Y. Chen D. Eamus L.B. Hutley (2002) ArticleTitleSeasonal patterns of soil carbon dioxide efflux from a wet–dry tropical savanna of northern Australia Australian Journal of Botany 50 43–51
W.X. Chen D.C. Coleman (1988) ArticleTitleA simple method for measuring CO2 in a continuous air-flow system: modifications to the substrate-induced respiration technique Soil Biology and Biochemistry 21 385–388
E.M. D’Angelo K.R. Reddy (1999) ArticleTitleRegulators of heterotrophic microbial potentials in wetland soils Soil Biology and Biochemistry 31 815–830
E.A. Davidson E. Belk R.D. Boone (1998) ArticleTitleSoil water content and temperature as independent or confound factors controlling soil respiration in a temperate mixed hardwood forest Global Change Biology 4 217–227
W.F. Busk ParticleDe K.R. Reddy (1998) ArticleTitleTurnover of detrital organic carbon in a nutrient-impacted Everglades marsh Soil Science Society of America Journal 62 1460–1468
E. Frossard L.M. Condorn A. Oberson S. Sinaj J.C. Fardeau (2000) ArticleTitleProcesses governing phosphorus availability in temperate soils Journal of Environmental Quality 29 15–23
R.J. Gilkes G.M. Dimmock (1998) ArticleTitleMineralogical properties of sandy podzols on the Swan Coastal Plain, South-West Australia, and effects of drying on their phosphate sorption characteristics Australian Journal of Soil Research 36 395–409
J.E. Hawkins C. Freeman (1994) ArticleTitleRising sea levels-potential effects upon terrestrial greenhouse gas production Soil Biology and Biogeochemistry 26 325–329
E.A. Holland D.C. Coleman (1987) ArticleTitleLitter placement effects on microbial and organic matter dynamics in an agroecosystem Ecology 68 425–422
K.T. Imberger C.Y. Chiu (2001) ArticleTitleSpatial changes of soil fungal and bacterial biomass from a sub-alpine coniferous forest to grass land in a humid, sub-tropical region Biology and Fertility of Soils 33 105–110
C.K. Johnson M.F. Vigil K.G. Doxtader W.E. Beard (1996) ArticleTitleMeasuring bacterial and fungal substrate-induced respiration in dry soils Soil Biology and Biochemistry 28 427–432
Q. Lin P.C. Brooks (1999) ArticleTitleComparison of substrate-induced respiration, selective inhibition and biovolume measurement of microbial biomass and its community structure in unamended, ryegrass-amended, fumigated and pesticide-treated soils Soil Biology and Biochemistry 31 1999–2014
W.M. McArthur (1991) Reference soils of south-western Australia Department of Agriculture Western Australia, Perth, Australia
McArthur W.M. and Bettenay E. 1960. The development and distribution of the soils of the Swan Coastal Plain, Western Australia. Commonwealth Scientific and Industrial Research Organisation. Soil Publication No. 16, Perth, Australia, pp. 4–55.
A.J. McComb R.J. Lukatelich (1995) The Peel/Harvey Estuarine System, Western Australia A.J. McComb (Eds) Eutrophic Shallow Estuaries and Lagoons CRC Press Boca Ralon, FL, USA 5–18
M.J. McLaughlin A.M. Alston J.K. Martin (1988) ArticleTitlePhosphorus cycling in wheat-pasture rotations II. The role of the microbial biomass in phosphorus cycling Australian Journal of Soil Research 26 333–342
C.L. Neely M.H. Baeare W.L. Hargrove D.C. Coleman (1991) ArticleTitleRelationship between fungal and bacterial substrate-induced respiration, biomass and plant residue decomposition Soil Biology and Biochemistry 23 947–954
A. Oberson D.K. Friesen I.M. Rao S. Buhler E. Frossard (2001) ArticleTitlePhosphorus transformations in an Oxisol under contrasting land-use systems: the role of the soil microbial biomass Plant and Soil 237 197–210
Y. Qi M. Xu J.G. Wu (2002) ArticleTitleTemperature sensitivity of soil respiration and its effects on ecosystem carbon budget: nonlinearity begets surprises Ecological Modelling 153 131–142
S. Qiu A.J. McComb (1995) ArticleTitleThe plankton and microbial contributions to phosphorus release from fresh and air-dried sediments Marine and Freshwater Research 46 1039–1045
S. Qiu A.J. McComb R.W. Bell (2002) ArticleTitlePhosphorus leaching from litterfall in wetland catchments of the Swan Coastal Plain, southwestern Australia Hydrobiologia 472 95–105
Qiu S., McComb A.J., Bell R.W. and Davis J.A. 2003. Nutrient response to soil and litter metabolic activity in a transect across a seasonal wetland. Marine and Freshwater Research (in press).
A.E. Richardson (2001) ArticleTitleProspects for using soil microorganisms to improve the acquisition of phosphorus by plants Australian Journal of Plant Physiology 28 897–906
D. Scanlon T. Moore (2000) ArticleTitleCarbon dioxide production from peatland soil profiles: the influence of temperature, oxic/anoxic conditions and substrate Soil Science 165 153–160
S. Scheu D. Parkinson (1994) ArticleTitleChanges in bacterial and fungal biomass C, bacterial and fungal biovolume and ergosterol content after drying, remoistening and incubation of different layers of cool temperature forest soils Soil Biology and Biochemistry 26 1515–1525
B. Seeling R.J. Zasoski (1993) ArticleTitleMicrobial effects in maintaining organic and inorganic solution phosphorus concentrations in a grassland topsoil Plant and Soil 148 277–284
G.P. Sparling K.N. Whale A.J. Ramsay (1985) ArticleTitleQuantifying the contribution from the soil microbial biomass to the extractable P level of fresh and air-dried soils Australian Journal of Soil Research 23 613–621
D.M. Sylvia J.J. Fuhrmann P.G. Hartel A.A. Zuberer (1998) Principles and Applications of Soil Microbiology Prentice-Hall NJ, USA.
C.C. Trettin M. Davidian M.F. Jurgensen R. Lea (1996) ArticleTitleOrganic matter decomposition following harvesting and site preparation of a forested wetland Soil Science Society of America Journal 60 1994–2003
B.L. Turner P.M. Haygarth (2001) ArticleTitlePhosphorus solubilization in rewetted soils Nature 411 258
A.L. Wright K.R. Reddy (2001) ArticleTitleHeterotrophic microbial activity in northern Everglades wetland soils Soil Science Society of America Journal 65 1856–1864
M. Xu Y. Qi (2001a) ArticleTitleSoil-surface CO2 efflux and its spatial and temporal variations in a young ponderosa pine plantation in northern California Global Change Biology 7 667–677
M. Xu Y. Qi (2001b) ArticleTitleSpatial and seasonal variations of Q10 determined by soil respiration measurements at a Sierra Nevadan forest Global Biogeochemical Cycles 15 687–696
X. Yang M. Wang Y. Huang Y. Wang (2002) ArticleTitleA one-compartment model to study soil carbon decomposition rate at equilibrium situation Ecological Modelling 151 63–73
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Qiu, S., McComb, A.J., Bell, R.W. et al. Response of soil microbial activity to temperature, moisture, and litter leaching on a wetland transect during seasonal refilling. Wetlands Ecol Manage 13, 43–54 (2005). https://doi.org/10.1007/s11273-003-3054-y
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DOI: https://doi.org/10.1007/s11273-003-3054-y