Ten most important publications for this application in italics

Transkriptio

1 1 Ten most important publications for this application in italics Hannu Fritze publication list A) Peer-reviewed scientific journals Fritze H. 1987: The influence of urban air pollution on soil respiration and fungal hyphal length. Annales Botanici Fennici 24, Fritze H. 1988: Influence of urban air pollution on needle litter decomposition and nutrient release. Scandinavian Journal of Forest Research 3, Fritze H., Niini S., Mikkola K. & Mäkinen A. 1989: Soil microbial effects of a Cu-Ni smelter in southwestern Finland. Biology and Fertility of Soils 8, Kytöviita M-M., Fritze H. & Neuvonen S. 1990: The effects of acid irrigation on soil microorganisms at Kevo, Northern Finland. Environmental Pollution 66, Ohtonen R., Markkola A-M., Heinonen-Tanski, H. & Fritze H. 1990: Soil biological parameters as indicators of changes in Scots pine (Pinus sylvestris L.) caused by air pollution. In: Kauppi P. Anttila P. & Kenttämies K. (eds.) Acidification in Finland. Springer-Verlag, Berlin. pp Fritze H. 1991: Forest soil microbial response to emissions from an iron and steel works. Soil Biology and Biochemistry 23, Fritze H., Kiikkilä O., Pasanen J. & Pietikäinen J. 1992: Reaction of forest soil microflora to environmental stress along a moderate pollution gradient next to an oil refinery. Plant and Soil 140, Pasanen J. & Fritze H. 1992: Response of epiphytic microflora from Pinus sylvestris needles to alkaline deposition. Bulletin of Environmental Contamination and Toxicology 48, Fritze H. 1992: Effects of environmental pollution on forest soil microflora - A review. Silva Fennica 26, Bååth E., Frostegård Å. & Fritze H. 1992: Soil bacterial biomass, activity, community structure and ph tolerance in an area polluted with alkaline deposition. Applied and Environmental Microbiology 58, Fritze H. & Bååth E. 1993: Microfungal species composition and fungal biomass in coniferous forest soil polluted by alkaline deposition. Microbial Ecology 25: Pietikäinen J. & Fritze H. 1993: Microbial biomass and activity in the humus layer following burning: Short term effects of two different fires. Canadian Journal of Forest Research 23: Fritze H., Pennanen T. & Pietikäinen J. 1993: Recovery of soil microbial biomass and activity from prescribed burning. Canadian Journal of Forest Research 23: Fritze H., Smolander A., Levula T., Kitunen V. & Mälkönen E. 1994: Wood ash fertilization and fire treatments in a Scots pine forest stand: effects on the organic layer, microbial biomass and microbial activity. Biology and Fertility of Soils 17:57-63.

2 2 15. Fritze H., Järvinen P. & Hiukka R. 1994: Near-infrared characteristics of forest humus are correlated with soil respiration and microbial biomass in burnt soil. Biology and Fertility of Soils 18: Kiikkilä O., Mikkola K., Myllyvirta T. & Fritze H 1994: Soil acidity in polluted and non-polluted areas in southern Finland. Scandinavian Journal of Forest Research 9: Pietikäinen J. & Fritze H. 1995: Clear-cutting and prescribed burning in coniferous forest: comparizon of effects on soil fungal and total microbial biomass, respiration activity and nitrification. Soil Biology and Biochemistry 27: Fritze H., Kapanen A. & Vanhala P. 1995: Cadmium contamination of wood ash and fire-treated humus: effect on soil respiration. Bulletin of Environmental Contamination and Toxicology 54: Bååth E., Frostegård Å., Pennanen T. & Fritze H. 1995: Microbial community structure and ph response in relation to soil organic matter quality in wood-ash fertilized, clear-cut or burned coniferous forest soils. Soil Biology and Biochemistry 27: Helmisaari H-S., Derome J., Fritze H., Nieminen T., Palmgren K., Salemaa M. & Vanha- Majamaa I. 1995: Heavy metals in Scots pine forests around a heavy-metal smelter in southwestern Finland. Water, Air, Soil Pollution 85: Vanhala P., Kiikkilä O. & Fritze H. 1996: Microbial responses of forest soil to moderate anthropogenic air pollution: a large scale field survey. Water, Air, and Soil Pollution 86: Vanhala P., Fritze H. & Neuvonen S 1996: Prolonged simulated acid rain treatment in the Subarctic: effect on the soil respiration rate and microbial biomass. Biology and Fertility of Soils 23:7-14. Fritze H., Vanhala P., Pietikäinen J. & Mälkönen E. 1996: Vitality fertilization of Scots pine stands growing along a gradient of heavy metal pollution: short term effects on microbial biomass and respiration rate of the humus layer. Fresenius' Journal of Analytical Chemistry 354: Pennanen T., Bååth E., Frostegard Å. & Fritze H. 1996: Phospholipid fatty acid composition and heavy metal tolerance soil microbial communities along two heavy metal polluted gradients in coniferous forests. Applied and Environmental Microbiology 62: Fritze H., Pennanen T. & Vanhala P. 1997: Impacts of fertilizers on the humus layer microbial community of Scots pine stands growing along a gradient of heavy metal pollution. In H. Insam & A. Rangger (eds.) Microbial communities: functional versus structural approaches. Springer- Verlag. pp Fritze H., Pennanen T. & Kitunen V. 1998: Characterization of dissolved organic carbon from burned humus and its effects on microbial activity and community structure. Soil Biology & Biochemistry 30: Pennanen T., Fritze H., Vanhala P., Kiikkilä O., Neuvonen S. & Bååth E. 1998: Structure of a microbial community in soil after prolonged addition of low levels of simulated acid rain. Applied and Environmental Microbiology 64: Vanhala P., Kapanen A., Fritze H. & Niemi R.M. 1998: Microbial activity and biomass in four Finnish coniferous forest soils - spatial variability and effects heavy metals. Boreal Environment Research 3:

3 3 Pennanen T., Perkiömäki J., Kiikkilä O., Vanhala P., Neuvonen S. & Fritze H. 1998: Prolonged, simulated acid rain and heavy metal deposition: separated and combined effects on forest soil microbial community structure. FEMS Microbiology Ecology 27: Ohtonen R., Fritze H., Pennanen T., Jumpponen A. & Trappe J. 1999: Ecosystem properties and microbial community changes in primary succession on a glacier forefront. Oecologia 119: Pennanen T., Liski J., Bååth E., Kitunen V., Uotila J., Westman C-J. & Fritze H. 1999: Structure of the microbial communities in coniferous forest soils in relation to site fertility and stand development stage. Microbial Ecology 38: Fritze H., Tikka P., Pennanen T., Saano A., Jurgens G., Nilsson M., Bergman I. & Kitunen V. 1999: Detection of archaeal diether lipid by gas chromatography from humus and peat. Scandinavian Journal of Forest Research 14: Pietikäinen J., Vaijärvi E., Ilvesniemi H., Fritze H. & Westman C-J. 1999: Carbon storage of microbes and roots and the flux of CO 2 across a moisture gradient. Canadian Journal of Forest Research 29: Mälkönen E., Derome J., Fritze H., Helmisaari H-S., Kukkola M., Kytö M., Saarsalmi A. & Salemaa M. 1999: Compensatory fertilization of Scots pine stands polluted by heavy metals. Nutrient Cycling in Agroecosystems 55: Kiikkilä O., Pennanen T., Pietikäinen J. & Fritze H. 2000: Some observations on the copper tolerance of bacterial communities using the 3 H-thymidine incorporation method in heavy metal polluted humus. Soil Biology & Biochemistry 32: Haimi J., Fritze H. & Moilanen P. 2000: Responses of soil decomposer animals to wood-ash fertilization and burning in a coniferous forest. Forest Ecology and Management 129: Pietikäinen J., Hiukka R. & Fritze H. 2000: Does short term heating of forest humus change its properties as a substrate for microbes? Soil Biology & Biochemistry 32: Fritze H., Pietikäinen J. & Pennanen T. 2000: Distribution of microbial biomass and phospholipid fatty acids in Podzol profiles under coniferous forest. European Journal of Soil Science 51: Pietikäinen J., Kiikkilä O. & Fritze H. 2000: Charcoal as a habitat for microbes and its effect on the microbial community of the underlying humus. Oikos 89: Fritze H., Perkiömäki J., Saarela U., Katainen R., Tikka P., Yrjälä K., Karp M., Haimi J. & Romantschuk M. 2000: Effect of Cd-containing wood ash on the microflora of coniferous forest humus. FEMS Microbiology Ecology 32: Siira-Pietikäinen A., Pietikäinen J., Fritze H. & Haimi J. 2001: Resistance of soil decomposer communities to forest management: clear felling versus alternative forest harvesting methods. Canadian Journal of Forest Research 31: Pennanen T., Strömmer R., Markkola A & Fritze H. 2001: Succession of microbial and plant communities during primary soil formation. Scandinavian Journal of Forest Research 16: Fritze H., Perkiömäki J., Petänen T., Pennanen T., Romantschuk M., Karp M. & Yrjälä K. 2001: A microcosmos study on the effects of Cd-containing wood ash on the coniferous forest humus fungal community and Cd bioavailability. Journal of Soils and Sediments 1:

4 4 Kiikkilä O., Perkiömäki J., Barnette M., Derome J., Pennanen T., Tulisalo E. & Fritze H. 2001: In situ bioremediation through mulching of soil polluted by a copper-nickel smelter. Journal of Environmental Quality 30: Liiri M., Setälä H., Haimi J., Pennanen T. & Fritze H. 2001: Influence of Cognettia spaghnetorum (Enchytraeidae) on birch growth and microbial activity, composition and biomass in soil with or without wood ash. Biology and Fertility of Soils 34: Siira-Pietikäinen A., Haimi J., Kanninen A., Pietikäinen J. & Fritze H. 2001: Responses of decomposer community to root-isolation and addition of slash. Soil Biology and Biochemistry 33: Liiri M., Setälä H., Haimi J., Pennanen T. & Fritze H. 2002: Relationship between soil microarthropod species diversity and plant growth does not change when the system is disturbed. Oikos 96: Kiikkilä O., Derome J., Brügger T., Uhlig C. & Fritze H. 2002: Copper mobility and toxicity of soil percolation water to bacteria in a metal polluted forest soil. Plant and Soil 238: Kiikkilä O., Pennanen T., Perkiömäki J., Derome J. & Fritze H. 2002: Organic material as a copper immobilising agent: a microcosm study on bioremediation. Basic and Applied Ecology 3: Liiri M., Setälä H., Haimi J., Pennanen T. & Fritze H. 2002: Soil processes are not influenced by the functional complexity of soil decomposer food webs under disturbance. Soil Biology & Biochemistry 34: Merilä P., Strömmer R. & Fritze H. 2002: Soil microbial activity and community structure along a primary succession transect on the land-uplift coast in western Finland. Soil Biology and Biochemistry 34: Perkiömäki J. & Fritze H. 2002: Short and long-termed effects of wood ash on the boreal forest microbial community. Soil Biology and Biochemistry 34: Galand P., Saarnio S., Fritze H. & Yrjälä K. 2002: Depth related diversity of methanogen Archaea in Finnish oligothrophic fen. FEMS Microbiology Ecology 42: Perkiömäki J. & Fritze H. 2003: Does simulated acid rain increase the leaching of cadmium from wood ash to toxic levels for coniferous forest humus microbes? FEMS Microbiology Ecology 44: Siira-Pietikäinen A., Haimi J & Fritze H. 2003: Organisms, decomposition, and growth of pine seedlings in boreal forest soil affected by sod cutting and trenching. Biology and Fertility of Soils 37: Landeweert R., Veenman C., Kuyper T.W., Fritze H., Wernars K and Smit E 2003: Quantification of ectomycorrhizal mycelium in soil by real-time PCR compared to conventional quantification techniques. FEMS Microbiology Ecology 45: Perkiömäki J., Tom-Petersen A., Nybroe O. & Fritze H. 2003: Boreal forest microbial community after long-term field exposure to acid and metal pollution and its potential remediation by using wood ash. Soil Biology & Biochemistry 35: Malmivaara-Lämsä, M. & Fritze H. 2003: Effect of wear and above ground forest site type characteristics on the soil microbial community structure in an urban setting. Plant and Soil 256:

5 5 Galand P., Fritze H. & Yrjälä K 2003: Microsite-dependent changes in Methanogenic Populations in a Boreal Oligotrophic Fen. Environmental Microbiology 5: Perkiömäki J., Kiikkilä O., Moilanen M., Issakainen J., Tervahauta A. & Fritze H. 2003: Cadmium-containing wood ash in a pine forest: effects on humus microflora and cadmium concentrations in mushrooms, berries and needles. Canadian Journal of Forest Research 33: Rantalainen, M-L., Fritze, H., Haimi, J., Kiikkilä, O., Pennanen, T. & Setälä, H 2004: Do enchytraeid worms and habitat corridors facilitate the colonisation of habitat patches by soil microbes? Biology and Fertility of Soils 39: Yrjälä, K, Katainen, R., Jurgens, G., Saarela, U., Saano, A., Romantschuk, M. & Fritze, H. 2004: Wood ash fertilization alters the forest humus Archaea community. Soil Biology & Biochemistry 36: Rantalainen M-L, Kontiola L, Haimi J, Fritze H & Setälä H. 2004: Influence of resource quality on the composition of soil decomposer community in fragmented and continuous habitat. Soil Biology & Biochemistry 36: Perkiömäki, J., Levula, T. & Fritze, H 2004: A reciprocal decomposition experiment of Scots pine needles 19 yr after wood ash fertilization. Soil Biology & Biochemistry 36: Jaatinen K., Knief K., Yrjälä K., Dunfield P. & Fritze H. 2004: Methanotrophic bacteria in boreal forest soil - effects of fire. FEMS Microbiology Ecology 50: Rantalainen M-L, Fritze H, Haimi J, Pennanen T & Setälä H. 2004: Colonisation of newly established habitats by soil decomposer organisms: the effect of habitat corridors in relation to colonisation distance and habitat size. Applied Soil Ecology 28:67-77 Vanhala P., Tamminen P. & Fritze H. 2005: Relationship between basal soil respiration rate, tree stand and soil characteristics in boreal forests. Environmental Monitoring and Assessment 101: Hernesmaa, A., Björklöf, K., Kiikkilä, O., Fritze, H., Haahtela, K. & Romantschuk M.2005: Structure and function of microbial communities in the rhizosphere of the Scots pine after cutting. Soil Biology & Biochemistry 37: Perkiömäki J & Fritze H 2005: Cadmium in upland forests after vitality fertilization with wood ash - a summary of soil microbiological studies into the potential risk of cadmium release. Biology and Fertility of Soils 41: Galand P., Juottonen H., Fritze H. & Yrjälä K. 2005: Methanogen communities in a drained bog: effect of ash fertilization. Microbial Ecology 49: Galand P, Fritze H, Conrad R & Yrjälä K. 2005: Pathways for methanogenesis and diversity of methanogenic Archaea in three boreal peatland ecosystems. Applied Environmental Microbiology 71: Rantalainen M-L, Fritze H, Haimi J, Pennanen T & Setälä H. 2005: Species richness and food web structure of soil decomposer community as affected by the scale of habitat fragmentation and habitat corridors. Global Change Biology 11:

6 6 Juottonen H, Galand P, Tuittila E-S, Laine J, Fritze H. & Yrjälä K. 2005: Methanogen communities and bacteria along an ecohydrological gradient in a northern raised bog complex. Environmental Microbiology 7: Jaatinen K, Tuittila E, Laine J, Yrjälä K & Fritze H 2005: Methanotrophic bacteria in a Finnish raised bog complex: effects of site fertility and drainage. Microbial Ecology 50: Moilanen M., Fritze H., Nieminen M. Piirainen S., Issakainen J & Piispanen J. 2006: Does wood ash application increase heavy metal accumulation in forest berries and mushrooms? Forest Ecology and Management 226: Merilä P, Galand PE, Fritze H, Tuittila E-S, Kukko-oja K, Laine J & Yrjälä K Methanogen communities along a primary succession transect of mire ecosystems. FEMS Microbiology Ecology 55: Maaßen S, Fritze H & Wirth S 2006: Response of soil microbial biomass, activities, and community structure at a pine stand in north-eastern Germany, five years after thinning. Canadian Journal of Forest Research 36: Rantalainen M-L, Haimi J, Fritze H & Setälä S 2006: Effects of small-scale habitat fragmentation, habitat corridors and mainland dispersal on soil decomposer organisms. Applied Soil Ecology 34: Jokinen HK, Kiikkilä O & Fritze H 2006: Exploring the mechanisms behind elevated microbial activity after wood ash application. Soil Biology & Biochemistry 38: Buurman P, Schellekens J, Fritze H & Nierop KGJ 2007: Selective depletion of organic matter in mottled podzol horizons. Soil Biology & Biochemistry 39: Korkama T, Fritze H, Pakkanen A & Pennanen T Interactions between extraradical ectomycorrhizal mycelia, microbes attached to mycelia and growth rate of Norway spruce (Picea abies) clones. New Phytologist: 173: Jaatinen K, Fritze H, Laine J & Laiho R Effects of short- and long-term water-level drawdown on populations and activity of aerobic decomposers in a boreal peatland. Global Change Biology 13: Pietikäinen J., Tikka P.J., Valkonen S., Isomäki A. & Fritze H 2007: Is the coniferous forest soil microbial community related to the basal area of trees? Soil Biology & Biochemistry 39: Korkama T, Fritze H, Kiikkilä O & Pennanen T 2007: Soil microbial biomass, activity and community structure under differently growing Norway spruce (Picea abies) clones. Soil Biology & Biochemistry 39: Vanhala P, Karhu K, Tuomi M, Sonninen E, Jungner H, Fritze H & Liski J 2007: Old soil carbon is more temperature sensitive than young in an agricultural field. Soil Biology & Biochemistry 39: Jaatinen K, Laiho R, del Castillo U, Minkkinen K, Pennanen T, Penttilä T & Fritze H Microbial communities and soil respiration along a water table gradient in a northern boreal peatland. Environmental Microbiology 10: Tuomi M, Vanhala P, Karhu K, Fritze H & Liski J 2008: Heterotrophic soil respiration - comparison of different models describing its temperature dependence. Ecological Modeling 211:

7 7 Rantalainen M-L, Haimi J, Fritze H, Pennanen T & Setälä H Soil decomposer community as a model system in studying the effects of habitat fragmentation and habitat corridors. Soil Biology & Biochemistry 40: Malmivaara-Lämsä, M, Hamberg, L, Haapamäki, E, Liski, J, Kotze, D. J, Lehvävirta, S & Fritze, H Edge effects and trampling in boreal urban forest fragments - impacts on the soil microbial community. Soil Biology & Biochemistry 40: Vanhala P, Karhu K, Tuomi M, Björklöf K, Fritze H & Liski J Temperature sensitivity of soil organic matter decomposition in southern and northern part of the boreal forest zone. Soil Biology & Biochemistry 40: Juottonen H, Tuittila E-S, Juutinen S, Fritze H & Yrjälä K Seasonality of rdna- and rrnaderived archaeal communities and methanogenic potential in a boreal mire. The ISME Journal 2: Mäkiranta P, Laiho R, Fritze H, Hytönen J, Laine J & Minkkinen K Indirect regulation of heterotrophic peat soil respiration by water level via microbial community structure and temperature sensitivity. Soil Biology & Biochemistry 41: Putkinen A, Juottonen H, Juutinen S, Tuittila E-S Fritze H & Yrjälä K Archaeal rrna communities and methane production in deep peat sediments. FEMS Microbiology Ecology 70: Peltoniemi K, Fritze H & Laiho R Responses of fungal and actinobacterial communities to water-level drawdown in boreal peatland sites. Soil Biology & Biochemistry 41: Tuomivirta T, Yrjälä K & Fritze H Quantitative PCR of pmoa using a novel reverse primer correlates with potential methane oxidation in Finnish fen. Research in Microbiology 160: Karhu K, Fritze H, Hämäläinen K, Vanhala P, Jungner H, Oinonen M, Sonninen E, Tuomi M, Spetz P, Kitunen V & Liski J Temperature sensitivity of soil carbon fractions in boreal forest soil. Ecology 91: Salminen J, Hernesmaa A, Karjalainen H, Fritze H & Romantschuk M Soil faunal activity, bacterial community composition and functional redundancy in coniferous forest soil. Biology and Fertility of Soils 46: Karhu K, Fritze H, Tuomi M, Vanhala P, Spetz P, Kitunen V & Liski J Temperature sensitivity of organic matter decomposition in two boreal forest soil profiles. Soil Biology & Biochemistry 42: Hämäläinen K, Fritze H, Jungner H, Karhu K, Oinonen M, Sonninen E, Spetz P, Tuomi T, Vanhala P & Liski J Molecular sieve sampling of CO 2 from decomposition of soil organic matter for AMS radiocarbon measurements. Nuclear Instruments and Methods in Physics Research Section B 268: Larmola T, Tuittila E-S, Tiirola M, Nykänen H, Martikainen PJ, Yrjälä K, Tuomivirta T & Fritze H The role of Sphagnum mosses in the methane cycling of a boreal mire. Ecology 91: doi.org/ / Kotiaho M, Fritze H, Merilä P, Juottonen H, Leppälä M, Laine L, Yrjälä K & Tuittila E Methanogen activity in relation to water table in two boreal fens. Biology and Fertility of Soils 46: DOI: /s

8 8 Merilä P, Malmivaara-Lämsä M, Spetz P, Stark S, Vierikko K, Derome J. & Fritze H Soil organic matter quality as a link between microbial community structure and vegetation composition along a successional gradient in a boreal forest. Applied Soil Ecology 46: Vanhala P, Karhu K, Tuomi M, Björklöf K, Fritze H, Hyvärinen H & Liski J Warming climate alters the vegetation and soil microbiology but has no effect on temperature sensitivity of soil organic matter decomposition. Global Change Biology 17: DOI: /j x. Yrjälä K, Tuomivirta T, Juottonen H, Putkinen A, Lappi K, Tuittila E, Penttilä T, Minkkinen K, Laine J, Peltoniemi K & Fritze H CH 4 production and oxidation processes in a boreal fen ecosystem after long-term water table drawdown. Global Change Biology 17: doi: /j x 105. Kataja-aho S, Saari E, Fritze H & Haimi J Effects of stump removal on soil decomposer community in undisturbed forest floor after clear felling. Scandinavian Journal of Forest Research 26: Kytöviita M-M, Pietikäinen A & Fritze H Plant and soil responses to absence of plant cover and monoculturing in low arctic meadows. Applied Soil Ecology 48: doi: /j.apsoil Kataja-aho S, Fritze H & Haimi J Short-term responses of soil decomposer community and vegetation to stump harvesting. Forset Ecology and Management 262: doi: /j.foreco Vikman A, Fritze H, Sarkkola S, Kitunen K, Nousiainen H, Silvan N, Laine J & Nieminen M N 2 O fluxes from peatland buffer areas after high N loadings in five forested catchments in Finland. Wetlands 31: DOI: /s Straková P, Niemi RM, Freeman C, Peltoniemi K, Toberman H, Heiskanen I, Fritze H & Laiho R Litter type affects the activity of aerobic decomposers in a boreal peatland more than site nutrient and water level regimes. Biogeosciences 8: doi: /bg Vaario L-M, Fritze H, Spetz P, Heinonsalo J, Hanajik P & Pennanen T Tricholoma matsutake dominates diverse microbial communities in different forest soil. Applied and Environmental Microbiology 77: doi: /aem Vaario L-M, Heinonsalo J, Spetz P, Pennanen T, Heinonen J, Tervahauta A & Fritze H The ectomycorrhizal fungus Tricholoma matsutake is a facultative saprotroph in vitro. Mycorrhitza 22: DOI /s Bragazza L, Buttler A, Habermarcher J, Brancaleoni L, Gerdol R, Fritze H, Hanajík P, Laiho R & Johnson D High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation. Global Change Biology 18: DOI: /j x Putkinen A, Larmola T, Tuomivirta T, Siljanen H, Bodrossy L, Tuittila E-S & Fritze H Water dispersal of methanotrophic bacteria maintains functional methane oxidation in Sphagnum mosses. Frontiers in Terrestrial Microbiology 3:15. doi: /fmicb Kataja-aho S, Smolander A, Fritze H, Norrgård S & Haimi J Responses of soil carbon and nitrogen transformations to stump removal. Silva Fennica 46:

9 Peltoniemi K, Vávřová P, Alvira P, Fritze H, Pennanen T & Laiho R How water-level drawdown modifies litter-decomposing fungal and actinobacterial communities in boreal peatlands, Soil Biology and Biochemistry, 51: DOI /j.soilbio Juottonen H, Vikman A, Nieminen M, Tuomivirta T, Tuittila E-S, Nousiainen H, Kell D, Yrjälä K, Tervahauta A & Fritze H Methane-cycling microbial communities and methane emissions in natural and restored peatlands. Applied and Environmental Microbiology, 78: doi: /AEM Kotiaho M, Fritze H, Merilä P, Tuomivirta T, Väliranta M, Korhola A, Karofeld E & Tuittila E-S Actinobacteria community structure in the peat profile of boreal bogs follows a variation in the microtopographical gradient similar to vegetation. Plant and Soil 369: DOI: /s Hilasvuori E, Akujärvi a, Fritze H, Karhu K, Laiho R, Mäkiranta P, Oinonen M, Palonen V, Vanhala P & Liski J Temperature sensitivity of decomposition in a peat profile. Soil Biology & Biochemistry 67: Larmola T, Leppänen S, Tuittila ES, Arva M, Merilä P, Fritze H & Tiirola M Methanotrophy induces nitrogen fixation during peatland development. PNAS-Proceedings of the National Academy of Sciences of the United States of America 111: doi: /pnas Putkinen A, Larmola T, Tuomivirta T, Siljanen HMP, Bodrossy L, Tuittila ES & Fritze H 2014: Peatland succession induces a shift in the community 1 composition of Sphagnum associated active methanotrophs. FEMS Microbial Ecology 88: DOI: / Huusko K, Tarvainen O, Saravesi K, Pennanen T, Fritze H, Kubin E & Markkola A Shortterm impacts of energy wood harvesting on ectomycorrhizal fungal communities of Norway spruce saplings. The ISME Journal 9: doi: /ismej Zekker I, Rikmann E, Tenno T, Kroon K, Seiman A, Loorits L, Fritze H, Tuomivirta T, Vabamäe P, Raudkivi M & Tenno T Start-up of low temperature anammox in UASB from mesophilic yeast factory anaerobic tank inoculum. Environmental Technology 36: DOI: / Zekker I, Rikmann E, Tenno T, Loorits L, Kroon K, Fritze H, Tuomivirta T, Vabamäe P, Raudkivi M, Mandel A, Sergio SC Rubin DC & Tenno T Nitric oxide for anamox recovery in nitrite-inhibited deammonification system. Environmental Technology 36: Peltoniemi K, Laiho R, Juottonen H, Kiikkilä H, Mäkiranta P, Minkkinen K, Pennanen T, Penttilä T, Sarjala T, Tuittila E-S, Tuomivirta T & Fritze H Microbial ecology ion future climate: effects of temperature and moisture on microbial communities of two boreal fens. FEMS Microbiology Ecology. Juottonen H, Kotiaho M, Robinson D, Merilä P, Fritze H &Tuittila E-S Microform-related community patterns of methane-cycling microbes in boreal Sphagnum bogs are site-specific. FEMS Microbiology Ecology. Accepted In progress

10 10 Ukonmaanaho L, Starr M, Kantola M, Lauren A, Piispanen J, Pietilä H, Perämäki P, Merilä P, Fritze H, Tuomivirta T, Heikkinen J, Mäkinen J & Nieminen TM Impacts of forest on the mobilization of Hg and MeHg in drained peatland forests on black schist or felsic bedrock (in review). Hilasvuori E, Järvenpää M, Arppe L, Christensen BT, Fritze H., Karhu K, Oinonen M, Pitkänen J- M, Vanhala P & Liski J. Temperature sensitivity of mineral associated carbon does not increase with soil age (in manuscript) Peltoniemi K, Laiho R, Juottonen H, Bodrossy L, Kell D, Minkkinen K, Mäkiranta P, Penttilä T, Siljanen H, Tuittila E-S, Tuomivirta T & Fritze H. Active methanogenic and methanotrophic communities under a warming in moisture regime of two boreal peatlands (in manuscript) Mäkiranta P, Laiho R, Mehtätalo L, Straková P, Minkkinen K, Penttilä T, Fritze H & Tuittila E-S 2015: Moderate climate warming affects phenology and biomass production in two boreal fens only if accompanied by water-level drawdown. Environmental Research Letters (in review). Karhu K,Hilasvuori E, Fritze H, Biasi C, Nykänen H, Liski J, Vanhala P, Heinonsalo J, Pumpanen J. Priming effect increases with depth in a boreal forest soil. Soil Biology & Biochemistry (in revision) Congress abstracts B) Non-refereed scientific articles Poster Fritze H. 1989: Influence of a Cu-Ni smelter on the needle litter decomposition in a Scots pine (Pinus sylvestris L.) forest. Fifth International Symposium on Microbial Ecology (ISME 5) Kyoto, Japan. Pietikäinen J. & Fritze H. 1991: Influence of fire on forest soil microflora. First European symposium on Terrestrial Ecosystems. May 1991, Florence, Italy. Pennanen T., Pietikäinen J. & Fritze H 1992: Microbial biomass C: Metabolic quotient and ratio to total C in coniferous forest humus following prescribed fire. Sixth International Symposium on Microbial Ecology (ISME 6) Sept. 1992, Barcelona, Spain. Fritze H., Frostegård Å. & Bååth E. 1992: Soil bacteria in an area polluted with alkaline deposition. Sixth International Symposium on Microbial Ecology (ISME 6) Sept.1992, Barcelona, Spain. Fritze H. & Bååth E. 1993: Microfungal species composition and fungal biomass in coniferous forest soil polluted by alkaline deposition. International Symposium "Beyond the Biomass". March 1993, Wye College, UK. Vanhala P., Fritze H. & Neuvonen S. 1993: Effects of simulated acid rain on soil microflora in a subarctic area. International Symposium "Beyond the Biomass". March 1993, Wye College, UK. Bäck J., Fritze H., Huttunen S. & Neuvonen S. 1994: Acid rain effects on soil and growth of Scots pine. Poster presentation in the 26th air pollution workshop, Cornell University, March 1994, Ithaca, USA.

11 11 Pietikäinen J., Nykänen H., Martikainen P. & Fritze H. 1994: Carbon in coniferous forest soil: Microbial biomass carbon and fluxes of CO 2 and CH 4. National Conference of the Finnish Research Programme on Climate Change. March 1994, Aulanko, Finland Kitunen V., Fritze H. & Hiukka R. 1994: Carbon in coniferous forest soil: Characterization of dissolved organic matter of rain and soil water by IR-analysis. National Conference of the Finnish Research Programme on Climate Change. March, 1994 Aulanko, Finland Fritze H. 1994: Cadmium contamination of wood ash and fire-treated humus: effect on soil respiration. Third European Conference on Ecotoxicology. August, 1994, Zürich, Switzerland. Vanhala P., Kiikkilä O. & Fritze H. 1994: Microbial responses of forest soil to moderate anthropogenic air pollution: a large scale field survey. Third European Conference on Ecotoxicology. August, 1994, Zürich, Switzerland. Helmisaari H-S., Derome J., Fritze H, Nieminen T., Palmgren K., Salemaa M. & Vanha-Majamaa I. 1995: Heavy metals in Scots pine forests - ecosystem study in Harjavalta, Western Finland. Conference in Acid Rain. August, 1995, Gothenburg, Sweden. Pietikäinen J., Pennanen T. & Fritze H. 1995: Microbial biomass distribution and fungal/bacterial ratio in boreal coniferous forest soil. Seventh International Symposium on Microbial Ecology (ISME-7), 27 August - 01 September, 1995, Santos-Sao Paulo, Brazil. Vanhala P. & Fritze H. 1995: The use of Biolog R to detect functional changes of the microflora along a heavy metal gradient treated with lime and nitrogen. Seventh International Symposium on Microbial Ecology (ISME-7), 27 August - 01 September, 1995, Santos-Sao Paulo, Brazil Pennanen T., Fritze H., Kiikkilä O. & Bååth E. 1997: Microbial community changes to low levels of prolonged simulated acid rain. XIII International Symposium on Environmental Biogeochemistry. Sept. 1997, Monopoli, Italia. Kiikkilä O., Pennanen T., Pietikäinen J. & Fritze H. 1998: Copper tolerance of the bacterial community in heavy metal polluted soil treated with a new organic cover layer. Bioremediation of contaminated soil and groundwater. II. Environmental Symposium of the Maj and Tor Nessling Foundation. August 1998, Helsinki, Finland. Fritze H., Kiikkilä O., Perkiömäki J., Pietikäinen J. & Pennanen T. 1999: Microbial activity, community structure and bacterial copper tolerance in a heavy metal polluted soil treated with a new organic carbon layer. 6 th Symposium on Bacterial Genetics and Ecology. June 1999, Florence, Italy. Yrjälä K., Saarela U., Katainen R., Romantschuk M., Karp M. & Fritze H. 1999: Effect of Cdcontaining wood ash on forest surface soil in Central Finland. 6 th Symposium on Bacterial Genetics and Ecology. June 1999, Florence, Italy. Pennanen T., Tuomainen M., Hantula J., Fritze H., Haimi J., Tikka P. & Setälä H. 1999: Forest soil microbial community in the presence or absence of Cognettia shagnetorum (Enchytraeidae) and ash fertilization. 6 th Symposium on Bacterial Genetics and Ecology. June 1999, Florence, Italy. Fritze H. & Perkiömäki J. 1999: Microbial community of coniferous forest humus under wood ash with and without an increased Cd content. 14 th International Symposium on Environmental Biogeochemistry. Sept. 1999, Huntsville, Canada. Pennanen T., Ohtonen R., Markkola A. & Fritze H. 1999: Primary soil formation and succession of microbial and plant communities. 14 th International Symposium on Environmental Biogeochemistry. Sept. 1999, Huntsville, Canada.

12 12 Tuomainen M., Setälä H., Haimi J., Pennanen T. & Fritze H. 1999: Does soil microarthopod species diversity influence soil processes and tree growth? FIBRE meeting, Nov. 1999, Helsinki, Finland. Saarela U., Katainen R., Jurgens G., Perkiömäki J., Saano A., Romantschuk M., Fritze H. & Yrjälä K Changes in microbial diversity of forest humus treated with ash and Cd-containing ash. Northern Dimension to Biodiversity. FIBRE-meeting, Nov. 1999, Ivalo, Finland. Saarela U., Perkiömäki J., Romantschuk M., Fritze H. & Yrjälä K Actinomycete diversity in coniferous forest humus treated with ash and Cd-containing ash 4th International Symposiun on Environmental Biotechnology. April 2000, Noordwijkerhout, The Netherlands. Katainen R., Romantschuk M., Fritze H. & Yrjälä K. 2000: Effect of Cd-cantaining wood ash on Archaea community in coniferous forest humus. EUROSOIL 2000, Sept. 2000, Reading, England. Paavolainen L., Reijonen R., Smolander A., Fritze H., Hantula J., Niemelä P. & Helmisaari H-S. 2000: Microbial population structure and activity in a forest soil down to a depth of 9 m. EUROSOIL 2000, Sept. 2000, Reading, England. Saarela U., Perkiömäki J., Romantschuk M., Fritze H. & Yrjälä K Aktinomykeettien diversiteetti tuhkalla ja kadmiumtuhkalla käsitellyssä havumetsän humuksessa. Soil Science Meeting, Nov. 2000, Helsinki, Finland. Liiri M., Setälä H., Haimi J., Pennanen T. & Fritze H. 2000: Onko biodiversiteetillä merkitystä maaperäekosysteemissä? Pro Terra No 4/2000, s. 80. Soil Science Meeting, Nov. 2000, Helsinki, Finland. Perkiömäki J., Tom-Petersen A., Nybroe O. & Fritze H. 2001: Boreal forest microbial community after restoration of acidified and metal polluted humus. ISME-9, Aug. 2001, Amsterdam, The Netherlands. Fritze H., Saarela U., Perkiömäki J. & Yrjälä K. 2001: Effect of Cd-containing wood ash on the microflora of coniferous forest humus. ISME-9, Aug. 2001, Amsterdam, The Netherlands. Kiikkilä O., Fritze H. & Derome J. 2001: Decontamination of metal-polluted forest soil as assessed by copper mobility and the toxicity of soil percloration water to bacteria. ISME-9, Aug. 2001, Amsterdam, The Netherlands. Merilä P., Strömmer R., Smolander A. & Fritze H Soil microbial activities related to C and N cycling, and microbial community structure along a primary succession transect. In: Saari, J. & Sen, R. (eds.). Impacts of Soil Microbes on Plant Population Dynamics and Productivity. 8th New Phytologist Symposium, June 9-14, 2002, Helsinki, Finland. Programme and abstracts. Perkiömäki J & Fritze H. 2002: Does simulated acid rain increase the leaching of cadmium from wood ash to toxic levels to coniferous forest humus microbes? 7 th Symposium on Bacterial Genetics and Ecology June 2002 Bergen, Norway. Galand P., Saarnio S., Fritze H & Yrjälä K. 2002: Diversity of methanogen Archaea in Finnish oligotrophic fen. Soil Science: Confronting New Realities in the 21st Century. 17th World Congress of Soil Science, August, 2002, Bangkok, Thailand. Abstracts, Volume I, Symposia Vanhala P., Tamminen P. & Fritze H. 2002: Relationship between basal soil respiration rate, tree stand and soil characteristics in boreal forests. BIOGEOMON, 4th International Symposium on Ecosystem Behaviour, August , The University of Reading, UK.

13 13 Galand P., Saarnio S., Fritze H & Yrjälä K. 2002: Diversity of methanogen Archaea in Finnish oligotrophic fen. II Maaperätieteen päivät, HY Biokeskus Jaatinen K., Knief C., Dunfield P., Yrjälä K. & Fritze H Methanotrophic bacteria in boreal forest soil: long-term effects of prescribed burning and ash fertilization. The 1. FEMS Congress Lublijana, Slovenia Juottonen H., Galand P., Fritze H. & Yrjälä K Effect of ash fertilization on the methanogen archaea community in Finnish peatland soil. Ympäristötieteen päivät, Joensuu, Galand P, Juottonen H, Fritze H & Yrjälä K Diversity of methanogen Archaea in drained Finnish peatland. The 1. FEMS Congress Lublijana, Slovenia Galand P, Fritze H & Yrjälä K Effect of ash fertilization on the methanogen Archaea community in Finnish peatland soil. Structure and function of soil microbiota, Marburg, Germany. Rantalainen M-L., Fritze H., Haimi J., Kiikkilä O., Pennanen O & Setälä H Living in a patchy habitat do habitat corridor matter in soils? Annual Symposium of British Ecological Society: Biological Diversity and Function in Soils, Lancaster, UK. Laiho R. Fritze H, Karsisto M, Kitunen V. Laine J & Pennanen T Decomposition of C dynamics in peat soils under transient hydrology. International workshop on Greenhouse Impacts of the Use of Peat and Peatland in Finland Hyytiälä Malmivaara-Lämsä M. & Fritze H Effects of wear and above ground forest site type characteristics on the soil microbial community structure in an urban setting. Maj and Tor Nessling Foundation. Environmental problems and policies in growing urban areas Hanasaari, Espoo. Heiman S., Lehvävirta S., Fritze H., Kotze D.J. & O Hara B The effects of dogs on soil and microbes in urban woodlands in Helsinki, Finland. Maj and Tor Nessling Foundation. Environmental problems and policies in growing urban areas Hanasaari, Espoo. Lehvävirta S., Rita H., Koivula M., Kotze D.J. Heiman S. & Fritze H Fragmentation and recreational use change urban woodland ecosystems. Maj and Tor Nessling Foundation. Environmental problems and policies in growing urban areas Hanasaari, Espoo. Juottonen H, Galand G, Fritze H & Yrjälä K Archaeal and bacterial communities contributing to the CH 4 production along a nutrional gradient in a boreal mire complex. International Conference on Arctic Microbiology , Rovaniemi, Finland Juottonen H, Galand PE, Laine J, Tuittila E-S, Fritze H & Yrjälä K Bacteria and methaneproducing Archaea communities in water-submerged layers of Lakkasuo mire complex. Extended abstract and poster. Interdisciplinarity in Environmental Research seminar, Helsinki, Finland, May Juottonen H, Galand PE, Laine J, Tuittila E-S, Fritze H & Yrjälä K Bacteria and methaneproducing Archaea communities in water-submerged layers of Lakkasuo mire complex. Extended abstract and poster. 12th International Peat Congress, Tampere, Finland, June Galand P, Fritze H, Conrad R & Yrjälä K Functional diversity of methanogenic Archaea in boreal peatlands International Conference on Arctic Microbiology, Rovaniemi , Finland. Merilä, P, Fritze, H, Galand, P, Laine, J, Yrjälä, K, Tuittila, E.-S Development of methanogen communities along a successional transect of peatlands. International Conference on Arctic Microbiology, Rovaniemi , Finland.

14 14 Jaatinen K, Laine J, Tuittila E-S, Yrjälä K & Fritze H Methanotrophic bacteria in a finnish raised bog complex: effects of site fertility and drainage. 10th International Symposium on Microbial Ecology, ISME Cancun, Mexico Galand P, Fritze H, Conrad R & Yrjälä K Methanogen communities and pathways for methanogenesis in boreal peatland. 10th International Symposium on Microbial Ecology, ISME Cancun, Mexico Jaatinen K, Laine J, Tuittila E-S, Yrjälä K & Fritze H Methanotrophic bacteria in a Finnish raised bog complex: effects of site fertility and drainage. III Maaperätieteen päivät , HY Metsätalo Jokinen H, Kiikkilä O & Fritze H Tuhkalannoitus lisää metsämaan mikrobien aktiivisuutta ilmiön taustalla olevat vaikutusmekanismit. III Maaperätieteen päivät , HY Metsätalo Korkama T, Fritze H, Kiikkilä O, Pakkanen A & Pennanen T Kuusen genotyypin vaikutus ektomykorritsasieniyhteisöön ja maaperämikrobeihin. III Maaperätieteen päivät , HY Metsätalo Laiho R, Fritze H, Jaatinen K, Karsisto M, Kitunen V, Laine J, Minkkinen K, Pennanen T & Vávřová P Decomposition and C dynamics in peat soils under transient hydrology: What happens inside the Black Box. Focus on Soils Symposium ; Uppsala. Jaatinen K, Fritze H & Laiho R Effects of short and long-term water level drawdown on aerobic microbial populations in a boreal peatland. Focus on Soils Symposium ; Uppsala Jaatinen K, Fritze H & Laiho R Effects of short and long-term water level drawdown on aerobic microbial populations in a boreal peatland. Ympäristömikrobiologian kehittämispäivä Viikki; Infotalo Merilä P, Galand PE, Fritze H, Tuittila E-S, Kukko-oja K, Laine J & Yrjälä K Development of methanogen communities during a primary succession of mire ecosystems. Program and abstracts of the Joint International Symposia for Subsurface Microbiology (ISSM 2005) and Environmental Biogeochemistry (ISEB XVII), August 14-19, 2005, Jackson Hole, Wyoming, USA.s. 31. Merilä P, Fritze H, Stark S & Derome J Soil C and N transformations and microbial community structure along successional transect located on an acid sulphate soil. Program and abstracts of the Joint International Symposia for Subsurface Microbiology (ISSM 2005) and Environmental Biogeochemistry (ISEB XVII), August 14-19, 2005, Jackson Hole, Wyoming, USA. s. 71. Juottonen H, Juutinen S, Yrjälä K, Fritze H & Tuittila ES Seasonal variation in active methanogen communities of boreal mire and their sensitivity to temperature. International Conference on Alpine and Polar Microbiology. Insbruck, Austria, , Juottonen H, Juutinen S, & Tuittila ES, Fritze H & Yrjälä K Seasonal patterns in temperature sensitivity of methane production and archaeal communities in a boreal mire. HERC seminar on Artic in Changing Climate - Past, Present and Future. University of Helsinki, Helsinki Juottonen H, Juutinen S, & Tuittila ES, Fritze H & Yrjälä K Archaeal communities in a boreal mire in relation to temperature sensitivity of methane production. 11th International Symposium on Microbial Ecology - ISME-11. Vienna, Austria August Malmivaara-Lämsä M, Hamberg L, Kotze J, Lehvävirta, S & Fritze, H Edge effect and wear in urban forest fragments - impacts on soil microbial community structure. 11th International Symposium on Microbial Ecology - ISME-11. Vienna, Austria August

15 15 Jaatinen K, Vuorenmaa A, Castillo del U, Penttilä T, Laiho R, Minkkinen K & Fritze H Aerobic microorganisms along a water table gradient in a northern boreal fen. 11th International Symposium on Microbial Ecology - ISME-11. Vienna, Austria August Vanhala P, Fritze H, Björklof K & Liski J Adaption of carbon mineralization to climate change. 11th International Symposium on Microbial Ecology - ISME-11. Vienna, Austria August Karhu K, Vanhala P, Tuomi M, Sonninen E Jungner H, Fritze H & Liski J Temperature sensitivity of SOM decomposition - young and old fractions differentiated using 13 C measurements and modeling. International Boreal Forest Research Association, 13th Scientific Conference. Uppsala Sweden August Lehvävirta S, Kotze J, Hamberg L, Malmivaara-Lämsä M, Fedrowitz K, Ahlgren AL, Matveinen-Huju K, Murto L, Riikonen T & Fritze H Quantifying the effects of wear and fragmentation on urban forest ecosystems. IUFRO Unit (Landscape ecology), Patterns and processes in forest landscapes, Consequences of human management, September 26-29, 2006, Locorotondo, Bari, Italy. Jaatinen K, Vuorenmaa A, Castillo del U, Penttilä T, Laiho R, Minkkinen K & Fritze H Aerobic microorganisms along a water table gradient in a northern boreal fen. IV Maaperätieteiden päivät University of Helsinki Malmivaara-Lämsä M, Hamberg L, Kotze J, Lehvävirta, S & Fritze, H Edge effect and wear in urban forest fragments - impacts on soil microbial community structure. IV Maaperätieteiden päivät University of Helsinki Juottonen H, Juutinen S, & Tuittila ES, Fritze H & Yrjälä K Archaeal communities in a boreal mire in relation to temperature sensitivity of methane production. IV Maaperätieteiden päivät University of Helsinki Putkinen A, Juottonen H, Juutinen S, Tuittila, A-S, Fritze H & Yrjälä K Active Archaea and methane production in southern and northern boreal mire sediments. IV Maaperätieteiden päivät University of Helsinki. Merilä P, Galand PE, Fritze H, Tuittila E-S, Kukko-oja K, Laine J & Yrjälä K Development of methanogen communities during a primary succession of mire ecosystems. IV Maaperätieteiden päivät University of Helsinki. Vanhala P., Fritze H., Björklöf K., Karhu K., Liski J. Adaptation of carbon mineralization to climate change. EU 6th framework (CarbonEurope, NitroEurope, CarboOcean, Global Carbon Project) Open Science Conference on the GHG Cycle in the Northern Hemisphere November Sissi-Lassithi Crete Karhu K. Vanhala P. Tuomi M. Sonninen E. Jungner H. Fritze H. and Liski J Temperature sensitivity of SOM decomposition - young and old fractions differentiated using 13C measurements and modelling. (CarbonEurope, NitroEurope, CarboOcean, Global Carbon Project). Open Science Conference on the GHG Cycle in the Northern Hemisphere, November Sissi-Lassithi Crete Laiho R, Fritze H, Jaatinen K, Karsisto M, Kitunen V, Laine J, Minkkinen K, Pennanen T, Tapanila T & Vávrová P. 2006: Decomposition and C dynamics in peat soils under transient hydrology: What happens inside the Black Box? First Annual Meeting SWS European Chapter University of Bangor UK. Karhu K. Tuomi M. Vanhala P. Sonninen E. Jungner H. Fritze H. and Liski J Temperature sensitivity of different SOM fractions assessed using carbon isotopes: 13C. Poster at Stable Isotopes in Biopheric-Atmospheric Exchange (SIBAE ) soil respiration workshop 'Disentangling abiotic and biotic effects on soil respiration', European Science Foundation; University of Insbruck March 2007.

16 16 Karhu K. Tuomi M. Hämäläinen K. Vanhala P. Sonninen E. Jungner H. Fritze H. and Liski J Temperature sensitivity of different SOM fractions assessed using carbon isotopes: 14C. Poster at Stable Isotopes in Biopheric-Atmospheric Exchange (SIBAE ) soil respiration workshop 'Disentangling abiotic and biotic effects on soil respiration', European Science Foundation; University of Insbruck March Putkinen A, Juottonen H, Juutinen S, Tuittila, A-S, Fritze H & Yrjälä K. 2007: Active Archaea and methane production in southern and northern boreal mire sediments. International Symposium on Carbon in Peatlands, April 2007, Wageningen, The Netherlands. Tuittila E-S, Leppälä M, Kotiaho bm, Juottonen H, Merilä P, Yrjälä K, Laine J, Kukko-oja K & Fritze H Successional Change in methane dynamics along a mire chronosequence. Environmental Biogeochemistry at the Extremes; Environmental Biogeochemistry (ISEB-18), Taupo New Zealand. Larmola T, Tuittila E-S, Yrjälä K, Tiirola M, Nykänen H, Martikainen P & Fritze H Role of Sphagnum mosses in methane cycling of a boreal mire. Environmental Biogeochemistry at the Extremes; Environmental Biogeochemistry (ISEB-18), Taupo New Zealand. Vanhala P, Karhu K, Tuomi M, Sonninen E, Jungner H, Liski J & Fritze H Old carbon is more temperature sensitive than young in an agricultural field. Environmental Biogeochemistry at the Extremes; Environmental Biogeochemistry (ISEB-18), Taupo New Zealand. Karhu K, Vanhala P, Tuomi M, Sonninen E, Jungner H, Fritze, H &Liski, J Temperature sensitivity of soil carbon: isotope and modeling studies. Poster presented at Marie Curie ileaps conference: Towards aprocess-based description of trace gas emissions in land surface models October 2007, Helsingborg, Sweden. Putkinen A, Juottonen H, Juutinen S, Tuittila E, Fritze H & Yrjälä K Archaeal activity in deep peat sediments. 3rd International Conference on Polar and Alpine Microbiology. Alberta, Canada; Kotiaho M, Fritze H, Merilä P, Leppälä M, Juottonen H, Putkinen A, Sarjala T & Tuittila E-S Successional patterns of in vitro soil respiration and methane production and oxidation along a mire chronosequence. 13th International Peat Congress, 8 to 13 June 2008, Tullamore, Ireland. Organisers: International Peat Society and Irish Peat Society. Vanhala P, Fritze H, Björklöf K, Karhu K, Tuomi M & Liski J Temperature sensitivity of soil organic matter decomposition in southern and northern areas of the boreal forest zone. EuroSoil, Vienna Kataja-aho S, Saari E, Fritze H & Haimi J Does stump harvesting modify decomposer community. EuroSoil, Vienna Juottonen H, Tuittila E-S, Juutinen S, Rinne S, Vesala T, Fritze H & Yrjälä K Temporal veriation of peatland methanogenesis at microbial community, process and ecosystem levels. ISME-12, Crains, Australia Hämäläinen K, Fritze H, Jungner H, Karhu K, Oinonen M, Soininen E, Spetz P, Vanhala P & Liski J Molecular sieve sampling of CO2 from decomposition of soil organic matter for AMS radiocarbon measurements. AMS-11; Rome Kotiaho, M Leppälä M, Merilä P, Juottonen H, Fritze H, Yrjälä K, Lainen J & Tuittila E-S Kahden sarasuon metanogeeniyhteisö kuivana ja sateisena vuonna. V. Maaperätieteen päivät , Helsinki.