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Updated: 17.03.2010 
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Publications of the Ecosystem Fluxes Research Group2010Moyes, A. B., Schauer, A. J., Siegwolf, R. T. W., and Bowling, D. R. (2010)An injection method for measuring the carbon isotope content of soil carbon dioxide and soil respiration with a tunable diode laser absorption spectrometer Rapid Communications in Mass Spectrometry, 24, 10.1002/rcm.4466, 2010 Morier, I., Schleppi, P., Saurer, M., Providoli, I., and Guenata, C. (2010) Retention and hydrolysable fraction of atmospherically deposited nitrogen in two contrasting forest soils in Switzerland European Journal of Soil Science, 61, 197-206, doi: 110.1111/j.1365-2389.2010.01226.x, 2010 Y. Zhu, R.T.W. Siegwolf, W. Durka and C. Körner (2010, published online) Phylogenetically balanced evidence for structural and carbon isotope responses in plants along elevational gradients Oecologia, DOI 10.1007/s00442-009-1515-6 Hagedorn, F., Martin, M., Rixen, C., Rusch, S., Bebi, P., Zurcher, A., Siegwolf, R. T. W., Wipf, S., Escape, C., Roy, J., and Hattenschwiler, S. (2010) Short-term responses of ecosystem carbon fluxes to experimental soil warming at the Swiss alpine treeline Biogeochemistry, 97, 7-19, 10.1007/s10533-009-9297-9. Nicolini, G., Tarchiani, V., Saurer, M., and Cherubini, P. (2010) Wood-growth zones in Acacia seyal Delile in the Keita Valley, Niger: Is there any climatic signal? Journal of Arid Environments, 74, 355-359, 10.1016/j.jaridenv.2009.08.017. Cocozza C., P. Cherubini, N. Regier, M. Saurer, B. Frey and R. Tognetti (2010) Early effects of water deficit on two parental clones of Populus nigra grown under different environmental conditions Functional Plant Biology, 2010, 37, 244–254 Sidorova O.V., R.T.W. Siegwolf, M. Saurer, M.M. Naurzbaev, A.V. Shashkin and E.A. Vaganov (2010) Spatial patterns of climatic changes in the Eurasian north reflected in Siberian larch tree-ring parameters and stable isotopes Global Change Biology, 10.1111/j.1365-2486.2009.02008.x, 16(3), 1003-1018.
2009Dommen J, Hellen H, Saurer M, Jaeggi M, Siegwolf R, Metzger A, Duplissy J, Fierz M and Baltensperger U (2009)Determination of the aerosol yield of isoprene in the presence of an organic seed with carbon isotope analysis Environ. Sci. Technol. In press Ferrio J.P., M. Cuntz, C. Offermann, R. Siegwolf, M. Saurer and A. Gessler (2009) Effect of water availability on leaf water isotopic enrichment in beech seedlings shows limitations of current fractionation models Plant Cell Environment, Published Online: May 15 2009; DOI: 10.1111/j.1365-3040.2009.01996.x Richter, A., W. Wanek, R.A. Werner, J. Ghashghaie, M. Jaggi, A. Gessler, E. Brugnoli, E. Hettmann, S.G. Gottlicher, Y. Salmon, C. Bathellier, N. Kodama, S. Nogues, A. Soe, F. Volders, K. Sorgel, A. Blochl, R.T.W. Siegwolf, N. Buchmann, and G. Gleixner (2009) Preparation of starch and soluble sugars of plant material for the analysis of carbon isotope composition: a comparison of methods Rapid Communications in Mass Spectrometry, 23 (16), 2476-2488 Gentile, N., R.T.W. Siegwolf, and O. Delemont (2009) Study of isotopic variations in black powder: reflections on the use of stable isotopes in forensic science for source inference Rapid Communications in Mass Spectrometry, 23 (16), 2559-2567 Treydte K.S., D.C. Frank, M. Saurer, G. Helle, G.H. Schleser, J. Esper (2009) Impact of climate and CO2 on a millennium-long tree-ring carbon isotope record Geochimica et Cosmochimica Acta 73, 4635–4647 Sidorova O., R. Siegwolf, M. Saurer, A. Shashkin, A. Knorre, A. Prokushkin, E. Vaganov and A. Kirdyanov (2009) Do centennial tree-ring and stable isotope trends of Larix gmelinii (Rupr.) Rupr. indicate increasing water shortage in the Siberian north? Oecologia, DOI 10.1007/s00442-009-1411-0 Saurer, M, A.S.H. Prévôt, J. Dommen, J. Sandradewi, U. Baltensperger, and R.T.W. Siegwolf (2009) The influence of traffic and wood combustion on the stable isotopic composition of carbon monoxide Atmos. Chem. Phys., 9, 3147-3161 link to online-file Kress A., M. Saurer, U. Buentgen, K.S. Treydte, H. Bugmann and R.T.W. Siegwolf (2009) Summer temperature dependency of larch budmoth outbreaks revealed by Alpine tree-ring isotope chronologies Oecologia, DOI 10.1007/s00442-009-1290-4 Bahn, M., M. Schmitt, R. Siegwolf, A. Richter, and N. Bruggemann (2009) Does photosynthesis affect grassland soil-respired CO2 and its carbon isotope composition on a diurnal timescale? New Phytologist, 182 (2), 451-460. Christina E. Reynolds-Henne, Matthias Saurer and Rolf T. W. Siegwolf (2009) Temperature versus species-specific influences on the stable oxygen isotope ratio of tree rings Trees, DOI 10.1007/s00468-009-0321-4. Battipaglia, G., M. Saurer, P. Cherubini, R.T.W. Siegwolf, and F.M. Cotrufo (2009) Tree rings indicate different drought resistance of a native (Abies alba Mill.) and a nonnative (Picea abies (L.) Karst.) species co-occurring at a dry site in Southern Italy Forest Ecology and Management, 257(3), 820-828. Fisseha, R., M. Saurer, M. Jäggi, R.T.W. Siegwolf, S. Szidat, V. Samburova, and U. Baltensperger (2009) Determination of primary and secondary sources of organic acids and carbonaceous aerosols using stable carbon isotopes Atmospheric Environment 43 (2009) 431–437, doi:10.1016/j.atmosenv.2008.08.041 Guerrieri M.R., R.T.W. Siegwolf, M. Saurer, M. Jäggi, P. Cherubini, F. Ripullone, and M. Borghetti (2009) Impact of different nitrogen emission sources on tree physiology: a triple stable isotope approach Atmospheric Environment 43 (2009) 410–418, doi:10.1016/j.atmosenv.2008.08.042
2008Joos, O., M. Saurer, A. Heim, F. Hagedorn, M.W.I. Schmidt, and R.T.W. Siegwolf (2008)Can we use CO2 concentrations determined with IRMS from small samples for the Keeling plot approach? Comparison of LICOR 8100 and IRMS measurements Rapid Communications in Mass Spectrometry, 22, 4029-4034. Saurer, M., P. Cherubini, C. E. Reynolds-Henne, K.S. Treydte, W.T. Anderson, and R.T.W. Siegwolf (2008) An investigation of the common signal in tree-ring stable isotope chronologies at temperate sites Journal of Geophysical Research Biogeosciences, 113 (G04035), doi:10.1029/2008JG000689. pdf-file Bahn, M., M. Rodeghiero, M. Anderson-Dunn, S. Dore, C. Gimeno, M. Drösler, M. Williams, C. Ammann, F. Berninger, C. Flechard, S. Jones, S. Kumar, C. Newesely, T. Priwitzer, A. Raschi, R.T.W. Siegwolf, S. Susiluoto, J. Tenhunen, G. Wohlfahrt, and A. Cernusca (2008) Soil respiration in European grasslands in relation to climate and assimilate supply Ecosystems, 11 (8), DOI: 10.1007/s10021-008-9198-0. Zeeman M.J., R.A. Werner, W. Eugster, R.T.W. Siegwolf, G. Wehrle, J. Mohn, and N. Buchmann (2008) Optimization of automated gassample collection and IRMS analysis of d13C of CO2 in air Rapid Communications in Mass Spectrometry (in press). Kodama, N., R.L. Barnard, Y. Salmon, C. Weston, J.P. Ferrio, J. Holst, R.A. Werner, M. Saurer, H. Rennenberg, N. Buchmann, and A. Gessler (2008) Temporal dynamics of the carbon isotope composition in a Pinus sylvestris stand: from newly assimilated organic carbon to respired carbon dioxide Oecologia, 156 (4), 737-750. Battipaglia, G., M. Jäggi, M. Saurer, R.T.W. Siegwolf, and M.F. Cotrufo (2008) Climatic sensitivity of in the wood and cellulose of tree rings: Results from a mixed stand of Acer pseudoplatanus L. and Fagus sylvatica L Palaeogeography Palaeoclimatology Palaeoecology, 261 (1-2), 193-202. Kahmen, A., K. Simonin, K.P. Tu, A. Merchant, A. Callister, R. Siegwolf, T.E. Dawson, and S.K. Arndt (2008) Effects of environmental parameters, leaf physiological properties and leaf water relations on leaf water d18O enrichment in different Eucalyptus species Plant Cell and Environment, 31 (6), 738-751. Morier, I., P. Schleppi, R.T.W. Siegwolf, H. Knicker, and C. Guenat (2008) N-15 immobilization in forest soil: a sterilization experiment coupled with (15)CPMAS NMR spectroscopy European Journal of Soil Science, 59 (3), 467-475. Morier, I., C. Guenat, R. Siegwolf, J.-C. Védy, and P. Schleppi (2008) Dynamics of atmospheric N deposition in a temperate calcareous forest soil Journal of Environmental Quality, 37, 2012-2021 Sidorova, O.V., R.T.W. Siegwolf, M. Saurer, M.M. Naurzbaev, and E.A. Vaganov (2008) Isotopic composition (d13C, d18O) in wood and cellulose of Siberian larch trees for early Medieval and recent periods Journal of Geophysical Research-Biogeosciences, 113 (G2). Wohlfahrt, G., M. Anderson-Dunn, M. Bahn, M. Balzarolo, F. Berninger, C. Campbell, A. Carrara, A. Cescatti, T. Christensen, S. Dore, W. Eugster, T. Friborg, M. Furger, D. Gianelle, C. Gimeno, K. Hargreaves, P. Hari, A. Haslwanter, T. Johansson, B. Marcolla, C. Milford, Z. Nagy, E. Nemitz, N. Rogiers, M. Sanz, R. Siegwolf, S. Susiluoto, M. Sutton, Z. Tuba, F. Ugolini, R. Valentini, R. Zorer, and A. Cernusca (2008) Biotic, Abiotic, and Management Controls on the Net Ecosystem CO2 Exchange of European Mountain Grassland Ecosystems Ecosystems, 11 (8), 1338-1351 (doi:10.1007/s10021-008-9196-2).
2007Treydte, K., D. Frank, J. Esper, L. Andreu, Z. Bednarz, F. Berninger, T. Böttger, C.D. D‘Allessandro, N. Etien, M. Filot, M. Grabner, M.T. Guillemin, E. Gutierrez, M. Haupt, G. Helle, E. Hilasvuori, H. Jungner, M. Kalela-Brundin, M. Krapiec, M. Leuenberger, N.J. Loader, V. Masson-Delmotte, A. Pazdur, S. Pawelczyk, M. Pierre, O. Planells, R. Pukiene, C.E. Reynolds-Henne, K.T. Rinne, A. Saracino, M. Saurer, E. Sonninen, M. Stievenard, V.R. Switsur, M. Szczepanek, E. Szychowska-Krapiec, L. Todaro, J.S. Waterhouse, M. Weigl, and G.H. Schleser (2007)Signal strength and climate calibration of a European tree ring isotope network Geophysical Research Letters, 34, doi:10.1029/2007GL031106, L24302. Theis, D.E., M. Jäggi, D. Äschlimann, H. Blum, E. Frossard and R. T. W. Siegwolf (2007) Dynamics of soil organic matter turnover and soil respired CO2 in a temperate grassland labeled with 13C European Journal of Soil Science doi: 10.1111/j.1365-2389.2007.00941.x. Reynolds-Henne, C. E.; Siegwolf, R. T. W.; Treydte, K. S.; Esper, J.; Henne, S.; Saurer, M. (2007) Temporal stability of climate-isotope relationships in tree rings of oak and pine (Ticino, Switzerland) Global Biogeochem. Cycles, Vol. 21, No. 4, GB4009 10.1029/2007GB002945 Dawson, T.E. and R.T.W. Siegwolf (Editors) (2007) Stable Isotopes as Indicators of Ecological Change Terrestrial Ecology Series, Elsevier; Amsterdam, Boston, pp. 417. Dawson, T.E. and R.T.W. Siegwolf (2007) Using stable isotopes as indicators, tracers and recorders of ecological change: Some context and background. in Stable Isotopes as Indicators of Ecological Change T.E. Dawson, and R.T.W. Siegwolf (Eds.), Terrestrial Ecology Series, Elsevier, Amsterdam, Boston, pp. 3-18. Saurer, M., and R.T.W. Siegwolf (2007) Human impacts on tree-ring growth reconstructed from stable isotopes in Stable Isotopes as Indicators of Ecological Change T.E. Dawson, and R.T.W. Siegwolf (Eds.), Terrestrial Ecology Series, Elsevier, Amsterdam, Boston, pp. 49-62. Jäggi M. and J. Fuhrer (2007) Oxygen and carbon isotopic signatures reveal a long-term effect of free-air ozone enrichment on leaf conductance in semi-natural grassland Atmospheric Environment, doi:10.1016/j.atmosenv.2007.07.044 Boettger, T., M. Haupt, K. Knoller, S.M. Weise, J.S. Waterhouse, K.T. Rinne, N.J. Loader, E. Sonninen, H. Jungner, V. Masson-Delmotte, M. Stievenard, M.T. Guillemin, M. Pierre, A. Pazdur, M. Leuenberger, M. Filot, M. Saurer, C.E. Reynolds, G. Helle, and G.H. Schleser (2007) Wood cellulose preparation methods and mass spectrometric analyses of delta C-13, delta O-18, and nonexchangeable delta H-2 values in cellulose, sugar, and starch: An interlaboratory comparison, Analytical Chemistry, 79 (12), 4603-4612. Keel S.G., Siegwolf, R.T.W., Jaeggi M. and Körner C. (2007) Rapid mixing between old and new C pools in the canopy of mature forest trees Plant, Cell & Environment 30 (8), 963–972. David, T.S., Henriques M.O., Kurz-Besson C., Nunes J., Valente F., Vaz M., Pereira J.S., Siegwolf R., Chaves M.M., Gazarini L.C. and David J.S. (2007) Water-use strategies in two co-occurring Mediterranean evergreen oaks: surviving the summer drought Tree Physiology, 27:793–803. Jenk, T.M., S. Szidat, M. Schwikowski, H.W. Gäggeler, L. Wacker, H.-A. Synal, and M. Saurer (2007) Microgram level radiocarbon (14C) determination on carbonaceous particles in ice. Nuclear Instruments and Methods in Physics Research B 259, 518-525. Battipaglia G., Cherubini P., Saurer M., Siegwolf R., Strumia S. and Cotrufo F. (2007) Volcanic explosive eruptions of the Vesuvio decrease tree-ring growth but not photosynthetic rates in the surrounding forests. Global Change Biology 13, 1–16. pdf-file von Felten S., Haettenschwiler S, Saurer M. and Siegwolf R. (2007) Carbon allocation in shoots of alpine treeline conifers in a CO2 enriched environment. Trees 21, 283-294. Novak K., Cherubini P., Saurer M., Fuhrer J., Skelly J. M., Kräuchi N. and Schaub M. (2007) The effect of ozone air pollution on tree-ring growth, d13C, and leaf gas exchange in three ozone-sensitive woody plant species. Tree Physiology 27, 941–949. pdf-file De Micco V., Saurer M., Aronne G., Tognetti R. and Cherubini P. (2007) Variations of wood anatomy and delta C-13 within-tree rings of coastal Pinus pinaster showing intra-annual density fluctuations, Iawa Journal, 28 (1), 61-74. pdf-file
2006Schleppi P, Bucher-Wallin I, Saurer M, Jaggi M, Landolt W (2006)Citric acid traps to replace sulphuric acid in the ammonia diffusion of dilute water samples for N-15 analysis. Rapid Communications in Mass Spectrometry 20 (4): 629-634. Obrist D, Conen F, Vogt R, Siegwolf R, Alewell C (2006) Estimation of Hg-0 exchange between ecosystems and the atmosphere using Rn-222 and Hg-0 concentration changes in the stable nocturnal boundary layer. Atmospheric environment 40 (5): 856-866. Treydte K., Schleser G.H., Esper J., Andreu L., Bednarz T., Berninger J., Böttger T., D’Allessandro C.D., Ethien N., Filot M., Frank D., Grabner M., Gutierrez E., Haupt M., Helle G., Jungner H., Kalela-Brundin M., Leuenberger M., Loader N., Masson-Delmotte V., Pazdur A., Planells O., Pukiene R., Reynolds C., Rinne K., Saurer M., Soninen E., Stieveneard M., Switsur R., Szczepanek M., Todaro L., Waterhouse J., Weigl M., Wimmer R. (2006) The European Isotope Network ISONET: First Results. In: Heinrich I et al. (Eds.) Tree rings in archaeology, climatology and ecology, TRACE, Vol. 4, 273-280. Jäggi M., Ammann C., Neftel A. and Fuhrer J. Environmental control of profiles of ozone concentration in a grassland canopy. Atmospheric Environment 40(28), 5496-5507, 2006. Fisseha R., Saurer M., Jäggi M., Szidat S., Siegwolf R. T. W. and Baltensperger U. Determination of stable carbon isotopes of organic acids and carbonaceous aerosols in the atmosphere. Rapid Commun. Mass Spectrom. 20, 2343–2347, 2006. pdf-file Providoli I., Bugmann H., Siegwolf R., Buchmann N. and Schleppi P. Patchways and dynamics of 15NO3 and 15NH4 applied in a mountain Picea abies forest and nearby meadow in central Switzerland. Soil Biology & Biochemistry 38, 38, 1645-1657, 2006. Otieno D.O., Kurz-Besson C., Liu J., Schmidt M.W.T., do Vale R.V.L., David T.S., Siegwolf R., Pereira J.S. and Tenhunen J.D. Seasonal variations in soil and plant water status in a Quercus suber L. Stand: roots as determinants of tree productivity and survival in the mediterranean-type ecosystem. Plant and Soil, 283 (1-2), 119-135, 2006. Kurz-Besson C., Otieno D., do Vale R.L., Siegwolf R., Schmidt M., Herd A., Nogueira C., David T.S., David J.S., Tenhunen J., Pereira J.S. and Chaves M. Hydraulic lift in cork oak trees in a savannah-type Mediterranean ecosystem and its contribution to the local water balance. Plant and Soil, 282 (1-2), 361-378, 2006. Keel S.G., Siegwolf R.T.W. and Körner C. Canopy CO2 enrichment permits tracing the fate of recently assimilated carbon in a mature deciduous forest. New Phytologist, 172 (2): 319-329. Keel S.G. and Hoch G. 13C labelling reveals different contributions of photoassimilates from infructescences for fruiting in two temperate forest tree species. Plant Biology 8(5), 606-614.
2005Koerner C, Asshoff R, Bignucolo O, Haettenschwiler S, Keel S, Pelaez-Riedl S, Pepin S, Siegwolf RTW, Zotz G (2005)Carbon Flux and Growth in Mature Deciduous Forest Trees Exposed to Elevated CO2.. Science 309, 1360-1362. Rogiers N, Eugster W, Furger M, Siegwolf R (2005) Effect of land management on ecosystem carbon fluxes at a subalpine grassland site in the Swiss Alps. . Theoretical and Applied Climatology 80:187-203. Pelz O, Abraham WR, Saurer M, Siegwolf R, Zeyer J (2005) Microbial assimilation of plant-derived carbon in soil traced by isotope analysis. . Biology and Fertility of Soils 41:153-162. Jaggi M, Saurer M, Volk M, Fuhrer J (2005) Effects of elevated ozone on leaf delta C-13 and leaf conductance of plant species grown in semi-natural grassland with or without irrigation. . Environmental Pollution 134:209-216. pdf-file Chevillat VS, Siegwolf RTW, Pepin S, Körner C (2005) Tissue-specific variation of delta C-13 in mature canopy trees in a temperate forest in central Europe. Basic and Applied Ecology 6 (6): 519-534. Providoli I, Bugmann H, Siegwolf R, Buchmann N, Schleppi P (2005) Flow of deposited inorganic N in two Gleysol-dominated mountain catchments traced with (NO3-)-N-15 and 15NH(4)(+). Biogeochemistry 76 (3): 453-475. Hagedorn F, Maurer S, Bucher JB, Siegwolf, R (2005) Immobilization, stabilization and remobilization of nitrogen in forest soils at elevated CO2: a N-15 and C-13 tracer study. Global Change Biology 11 (10): 1816-1827.
2004Hagedorn, F., M. Saurer, and P. Blaser, 2004:A 13C tracer study to identify the origin of dissolved organic carbon in forested mineral soils. Eur. J. Soil Sci., 55, 91-100. Jäggi, M., R. Siegwolf, M. Genenger, D. Hallenbarter, I. Brunner, and J. Fuhrer, 2004: Wood ash treatment affects seasonal N fluctuations in needles of adult Picea abies trees: a 15N-tracer study. Trees, 18, 54-60. Jenet, A., S. Fernandez-Rivera, M. Kreuzer, W. Langhans, D. Werling, M. Saurer, and M. Senn, 2004: Relationship of body fat stores and leptin expression in adipose tissue in African cows of different genotype. J. Anim. Feed Sci., 13, 409-412. Saurer, M., P. Cherubini, M. Ammann, B. De Cinti, and R. T. W. Siegwolf, 2004: First detection of nitrogen from NOx in tree rings: a 15N/14N study near a motorway. Atmospheric Environment, 38, 2779-2787. Saurer, M., R. T. W. Siegwolf, and F. Schweingruber, 2004: Carbon isotope discrimination indicates improving water-use efficiency of trees in northern Eurasia over the last 100 years. Global Change Biology, 10, 2109-2120. pdf-file Steinmann, K., R. T. W. Siegwolf, M. Saurer, and C. Körner, 2004: Carbon fluxes to the soil in a mature temperate forest assessed by 13C isotope tracing. Oecologia, 141, 489-501. Szidat, S., T. M. Jenk, H. W. Gäggeler, H. A. Synal, R. Fisseha, U. Baltensperger, M. Kalberer, V. Samburova, L. Wacker, M. Saurer, M. Schwikowski, and I. Hajdas, 2004: Source apportionment of aerosols by 14C measurements in different carbonaceous particle fractions. Radiocarbon, 46, 475-484. Szidat, S., T. M. Jenk, H. W. Gäggeler, H. A. Synal, I. Hajdas, G. Bonani, and M. Saurer, 2004: THEODORE, a two-step heating system for the EC/OC determination of radiocarbon (14C) in the environment. Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms, 223-24, 829-836. Theis, D. E., M. Saurer, H. Blum, E. Frossard, and R. T. W. Siegwolf, 2004: A portable automated system for trace gas sampling in the field and stable isotope analysis in the laboratory. Rapid Commun. Mass Spectrom., 18, 2106-2112 (DOI: 10.1002/rcm.1596).
Publications before 2004
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