Non-methane biogenic volatile organic compound emissions from boreal peatland microcosms under warming and water table drawdown
Tóm tắt
Boreal peatlands have significant emissions of non-methane biogenic volatile organic compounds (BVOCs). Climate warming is expected to affect these ecosystems both directly, with increasing temperature, and indirectly, through water table drawdown following increased evapotranspiration. We assessed the combined effect of warming and water table drawdown on the BVOC emissions from boreal peatland microcosms. We also assessed the treatment effects on the BVOC emissions from the peat soil after the 7-week long experiment. Emissions of isoprene, monoterpenes, sesquiterpenes, other reactive VOCs and other VOCs were sampled using a conventional chamber technique, collected on adsorbent and analyzed by GC–MS. Carbon emitted as BVOCs was less than 1% of the CO2 uptake and up to 3% of CH4 emission. Water table drawdown surpassed the direct warming effect and significantly decreased the emissions of all BVOC groups. Only isoprene emission was significantly increased by warming, parallel to the increased leaf number of the dominant sedge Eriophorum vaginatum. BVOC emissions from peat soil were higher under the control and warming treatments than water table drawdown, suggesting an increased activity of anaerobic microbial community. Our results suggest that boreal peatlands could have concomitant negative and positive radiative forcing effects on climate warming following the effect of water table drawdown. The observed decrease in CH4 emission causes a negative radiative forcing while the increase in CO2 emission and decrease in reactive BVOC emissions, which could reduce the cooling effect induced by the lower formation rate of secondary organic aerosols, both contribute to increased radiative forcing.
Tài liệu tham khảo
Asensio D, Peñuelas J, Filella I, Llusià J (2007) On-line screening of soil VOCs exchange responses to moisture, temperature and root presence. Plant Soil 291:249–261
Bäckstrand K, Crill PM, Mastepanov M, Christensen TR, Bastviken D (2008) Non-methane volatile organic compound flux from a subarctic mire in Northern Sweden. Tellus 60B:226–237
Beckmann M, Lloyd D (2001) Extraction and identification of volatile organic substances (VOS) from Scottish peat cores. Atmos Environ 35:79–86
Bertin N, Staudt M (1996) Effect of water stress on monoterpene emissions from young potted holm oak (Quercus ilex L.) trees. Oecologia 107:456–462
Brilli F, Barta C, Fortunati A, Lerdau M, Loreto F, Centritto M (2007) Response of isoprene emission and carbon metabolism to drought in white poplar (Populus alba) saplings. New Phytol 175:244–254
Chameides WL, Lindsay RW, Richardson J, Kiang CS (1988) The role of biogenic hydrocarbons in urban photochemical smog: Atlanta as a case study. Science 241:1473–1475
Christensen TR, Ekberg A, Ström L, Mastepanov M, Panikov N, Öquist M, Svensson BH, Nykänen H, Martikainen PJ, Oskarsson H (2003) Factors controlling large scale variations in methane emissions from wetlands. Geophys Res Lett 30(7):1414. doi:10.1029/2002GL016848
Cleveland CC, Yavitt JB (1998) Microbial consumption of atmospheric isoprene in a temperate forest soil. Appl Environ Microbiol 64:172–177
Duhl TR, Helmig D, Guenther A (2008) Sesquiterpene emissions from vegetation: a review. Biogeosciences 5:761–777
Faubert P, Tiiva P, Rinnan Å, Michelsen A, Holopainen JK, Rinnan R (2010a) Doubled volatile organic compound emissions from subarctic tundra under simulated climate warming. New Phytol 187:199–208
Faubert P, Tiiva P, Rinnan Å, Räsänen J, Holopainen JK, Holopainen T, Kyrö E, Rinnan R (2010b) Non-methane biogenic volatile organic compound emissions from a subarctic peatland under enhanced UV-B radiation. Ecosystems 13:860–873
Faubert P, Tiiva P, Rinnan Å, Räty S, Holopainen JK, Holopainen T, Rinnan R (2010c) Effect of vegetation removal and water table drawdown on the non-methane biogenic volatile organic compound emissions in boreal peatland microcosms. Atmos Environ 44:4432–4439
Fehsenfeld F, Calvert J, Fall R, Goldan P, Guenther AB, Hewitt CN, Lamb B, Liu S, Trainer M, Westberg H, Zimmerman P (1992) Emissions of volatile organic compounds from vegetation and the implications for atmospheric chemistry. Glob Biogeochem Cycles 6:389–430
Fuentes JD, Lerdau M, Atkinson R, Baldocchi D, Bottenheim JW, Ciccioli P, Lamb B, Geron C, Gu L, Guenther A, Sharkey TD, Stockwell W (2000) Biogenic hydrocarbons in the atmospheric boundary layer: a review. Bull Am Meteorol Soc 81:1537–1575
Gorham E (1991) Northern peatlands: role in the carbon cycle and probable responses to climatic warming. Ecol Appl 1:182–195
Guenther A, Hewitt CN, Erickson D, Fall R, Geron C, Graedel T, Harley P, Klinger L, Lerdau M, McKay WA, Pierce T, Scholes B, Steinbrecher R, Tallamraju R, Taylor J, Zimmerman P (1995) A global model of natural volatile organic compound emissions. J Geophys Res 100:8873–8892
Insam H, Seewald MSA (2010) Volatile organic compounds (VOCs) in soils. Biol Fertil Soils 46:199–213
IPCC (2007) Climate change 2007: the physical science basis. Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change. Cambridge University Press, Cambridge
Janson R, De Serves C, Romero R (1999) Emission of isoprene and carbonyl compounds from a boreal forest and wetland in Sweden. Agric For Meteorol 98–99:671–681
Kaplan JO, Folberth G, Hauglustaine DA (2006) Role of methane and biogenic volatile organic compound sources in late glacial and Holocene fluctuations of atmospheric methane concentrations. Global Biogeochem Cycles 20:GB2016. doi:10.1029/2005GB002590
Kesselmeier J, Ciccioli P, Kuhn U, Stefani P, Biesenthal T, Rottenberger S, Wolf A, Vitullo M, Valentini R, Nobre A, Kabat P, Andreae MO (2002) Volatile organic compound emissions in relation to plant carbon fixation and the terrestrial carbon budget. Global Biogeochem Cycles 16(4):1126. doi:10.1029/2001GB001813
Klinger LF, Zimmerman PR, Greenberg JP, Heidt LE, Guenther AB (1994) Carbon trace gas fluxes along a successional gradient in the Hudson Bay lowland. J Geophys Res 99:1469–1494
Kuhn U, Andreae MO, Ammann C, Araújo AC, Brancaleoni E, Ciccioli P, Dindorf T, Frattoni M, Gatti LV, Ganzeveld L, Kruijt B, Lelieveld J, Lloyd J, Meixner FX, Nobre AD, Pöschl U, Spirig C, Stefani P, Thielmann A, Valentini R, Kesselmeier J (2007) Isoprene and monoterpene fluxes from Central Amazonian rainforest inferred from tower-based and airborne measurements, and implications on the atmospheric chemistry and the local carbon budget. Atmos Chem Phys 7:2855–2879
Lafleur PM, Moore TR, Roulet NT, Frolking S (2005) Ecosystem respiration in a cool temperate bog depends on peat temperature but not water table. Ecosystems 8:619–629
Laothawornkitkul J, Taylor JE, Paul ND, Hewitt CN (2009) Biogenic volatile organic compounds in the Earth system. New Phytol 183:27–51
Lappalainen HK, Sevanto S, Bäck J, Ruuskanen TM, Kolari P, Taipale R, Rinne J, Kulmala M, Hari P (2009) Day-time concentrations of biogenic volatile organic compounds in a boreal forest canopy and their relation to environmental and biological factors. Atmos Chem Phys 9:5447–5459
Lavoir AV, Staudt M, Schnitzler JP, Landais D, Massol F, Rocheteau A, Rodriguez R, Zimmer I, Rambal S (2009) Drought reduced monoterpene emissions from the evergreen Mediterranean oak Quercus ilex: results from a throughfall displacement experiment. Biogeosciences 6:1167–1180
Llusià J, Peñuelas J, Alessio GA, Estiarte M (2006) Seasonal contrasting changes of foliar concentrations of terpenes and other volatile organic compound in four dominant species of a Mediterranean shrubland submitted to a field experimental drought and warming. Physiol Plantarum 127:632–649
Monson RK, Jaeger CH, Adams WW III, Driggers EM, Silver GM, Fall R (1992) Relationships among isoprene emission rate, photosynthesis, and isoprene synthase activity as influenced by temperature. Plant Physiol 98:1175–1180
Moore TR, Dalva M (1993) The influence of temperature and water table position on carbon dioxide and methane emissions from laboratory columns of peatland soils. J Soil Sci 44:651–664
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
Niemi R, Martikainen PJ, Silvola J, Wulff A, Turtola S, Holopainen T (2002) Elevated UV-B radiation alters fluxes of methane and carbon dioxide in peatland microcosms. Glob Change Biol 8:361–371
Niinemets Ü (2010) Mild versus severe stress and BVOCs: thresholds, priming and consequences. Trends Plant Sci 15:145–153
Nykänen H, Alm J, Lång K, Silvola J, Martikainen PJ (1995) Emissions of CH4, N2O and CO2 from a virgin fen and a fen drained for grassland in Finland. J Biogeogr 22:351–357
Ortega J, Helmig D (2008) Approaches for quantifying reactive and low-volatility biogenic organic compound emissions by vegetation enclosure techniques—part A. Chemosphere 72:343–364
Pegoraro E, Rey A, Greenberg J, Harley P, Grace J, Malhi Y, Guenther A (2004) Effect of drought on isoprene emission rates from leaves of Quercus virginiana Mill. Atmos Environ 38:6149–6156
Peñuelas J, Llusià J (2003) BVOCs: plant defense against climate warming? Trends Plant Sci 8:105–109
Peñuelas J, Staudt M (2010) BVOCs and global change. Trends Plant Sci 15:133–144
Pétron G, Harley P, Greenberg J, Guenther A (2001) Seasonal temperature variations influence isoprene emission. Geophys Res Lett 28(9):1707–1710. doi:10.1029/2000GL011583
Seewald MSA, Singer W, Knapp BA, Franke-Whittle IH, Hansel A, Insam H (2010) Substrate-induced volatile organic compound emissions from compost-amended soils. Biol Fertil Soils 46:371–382
Sharkey TD, Loreto F (1993) Water stress, temperature, and light effects on the capacity for isoprene emission and photosynthesis of kudzu leaves. Oecologia 95:328–333
Sharkey TD, Singsaas EL, Lerdau MT, Geron CD (1999) Weather effects on isoprene emission capacity and applications in emissions algorithms. Ecol Appl 9:1132–1137
Staudt M, Bertin N, Frenzel B, Seufert G (2000) Seasonal variation in amount and composition of monoterpenes emitted by young Pinus pinea trees—implications for emission modeling. J Atmos Chem 35:77–99
Staudt M, Ennajah A, Mouillot F, Joffre R (2008) Do volatile organic compound emissions of Tunisian cork oak populations originating from contrasting climatic conditions differ in their responses to summer drought? Can J For Res 38:2965–2975
Strack M (2008) Peatlands and climate change. International Peat Society, Jyväskylä
Sundh I, Nilsson M, Granberg G, Svensson BH (1994) Depth distribution of microbial production and oxidation of methane in northern boreal peatlands. Microb Ecol 27:253–265
Tholl D, Boland W, Hansel A, Loreto F, Röse USR, Schnitzler JP (2006) Practical approaches to plant volatile analysis. Plant J 45:540–560
Tiiva P, Rinnan R, Faubert P, Räsänen J, Holopainen T, Kyrö E, Holopainen JK (2007a) Isoprene emission from a subarctic peatland under enhanced UV-B radiation. New Phytol 176:346–355
Tiiva P, Rinnan R, Holopainen T, Mörsky SK, Holopainen JK (2007b) Isoprene emissions from boreal peatland microcosms; effects of elevated ozone concentration in an open field experiment. Atmos Environ 41:3819–3828
Tiiva P, Faubert P, Michelsen A, Holopainen T, Holopainen JK, Rinnan R (2008) Climatic warming increases isoprene emission from a subarctic heath. New Phytol 180:853–863
Tiiva P, Faubert P, Räty S, Holopainen JK, Holopainen T, Rinnan R (2009) Contribution of vegetation and water table on isoprene emission from boreal peatland microcosms. Atmos Environ 43:5469–5475