Winter methane emission from an Alpine open fen on Tibetan Plateau

• Autorzy: Zhu D. , Chen H. , Wu N. , Wang Y. , Luo P.
• Języki publikacji: EN

Abstrakty

EN

Methane (CH4) emission was measured from an open fen on the Zoige Plateau (3500 m a.s.l.) (the eastern edge of the Qinghai- Tibetan Plateau) during two winters of 2006 and 2007. Three dominant plant stands, including Carex muliensis Hand-Mazz. (CM), Eleocharis valleculosa Ohwif. setosa (Ohwi) Kitagawa.(EV) and Kobresia tibetica Maxim (KT) were chosen to be monitored. Winter CH4 emissions were roughly estimated to be 0.94 mg CH4 m–2 h–1. High spatialtemporal variations of the emission were found in this fen (the sequence of CM> EV> KT; 0.63 and 1.24 mg CH4 m–2 h–1 for 2006 and 2007, respectively). Factors involved in the spatial-temporal variation were: 1) water table in summer determining the winter amount of “old” CH4 stored in peat; 2) ice layer determining the release of CH4; 3) plant growth determining both the quantity of CH4 stored in peat and available substrates for CH4 production in winter. However, due to the homogeneity of freezing in winters, predictive factors such as plant growth and water table in summer could contribute more to winter CH4 emission than in situ freezing conditions. Considering that plant growth and water table are also the key factors controlling the spatial-temporal variation of CH4 emission in summer, we therefore suggested that winter CH4 emission represents the “inertia” of summer CH4 emission.

Słowa kluczowe

EN

methane emission; Alpine open fen; open fen; Alpine wetland; natural wetland; plant growth; water table; greenhouse gas; Tibetan Plateau; Zoige Plateau

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2011
• Tom: 59
• Numer: 1
• Opis fizyczny: p.87-94,fig.,ref.

Twórcy

autor

Zhu D.

• Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China

autor

Chen H.

autor

Wu N.

autor

Wang Y.

autor

Luo P.

Bibliografia

• Alm J., Saarnio S., Nykanen H., Silvola J., Martikainen P.J. 1999 – Winter CO2, CH4 and N2O fluxes on some natural and drained boreal peatlands – Biogeochemistry, 44: 163–186.
• Bubier J.L., Moore T.R., Roulet N.T. 1993 – Methane Emissions from Wetlands in the Midboreal Region of Northern Ontario, Canada – Ecology, 74: 2240–2254.
• Cai Y., L ang H.Q., Wang X.Y. 1965 – Mires of Zoige Plateau – Sci. Press, Beijing.
• Chen H., Yao S.P., Wu N., Wang Y.F., Luo P., Tian J.Q., Gao Y.H., Sun G. 2008 – Determinants influencing seasonal variations of methane emissions from alpine wetlands in Zoige Plateau and their implications – J. Geophys. Res. 113, D12303, doi:10.1029/2006JD008072.
• Chen H., Wu N., Gao Y., Yao S., Wang Y. F., Tian J. Q., Sun G., Yuan X. Z. 2009 – The effect of habitat on methane emission from an alpine wetland – Pol. J. Ecol. 57: 377–381.
• Clymo R.S. 1984 – The limits to peat bog growth – Phil. Trans. R. Soc. Ser. Lond. B, 303: 605–654
• Dise N.B. 1992 – Winter Fluxes of Methane from Minnesota Peatlands – Biogeochemistry, 17: 71–83.
• Hirota M., Tang Y.H., Hu Q.W., Hirata S., Kato T., Mo W.H., Cao G.M., Mariko S. 2004 – Methane emissions from different vegetation zones in a Qinghai-Tibetan Plateau wetland – Soil Biol. Biochem. 36: 737–748.
• Hutchinson G.L., Mosier A.R. 1981 – Improved Soil Cover Method for Field Measurement of Nitrous-Oxide Fluxes – Soil Sci. Soc. Am. J. 45: 311–316.
• IPCC (Intergovernmental Panel on Climate Change) 2007 – Climate Change 2007: The Physical Science Basis – Cambridge University Press, New York.
• Jin H.J., Wu J., Cheng G.D., Tomoko N., Sun G.Y. 1999 – Methane emissions from wetlands on the Qinghai–Tibet Plateau – Chinese Sci. Bull. 44: 2282–2286.
• Khalil M.A.K., Rasmussen R.A., Moraes F. 1993 – Atmospheric Methane at Cape- Meares – Analysis of a High-Resolution Data-Base and Its Environmental Implications – J. Geophys. Res. 98: 14753–14770.
• Kim J., Verma S.B., Billesbach D.P. 1999 – Seasonal variation in methane emission from a temperate Phragmites-dominated marsh: effect of growth stage and plant-mediated transport – Global Change Biol. 5: 433–440.
• King J.Y., Reeburgh W.S. 2002 – A pulselabeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra – Soil Biol. Biochem. 34: 173–180.
• King J.Y., Reeburgh W.S., Thieler K.K., Kling G.W., Loya W.M., Johnson L.C., Nadelhoffer K.J. 2002 – Pulse-labeling studies of carbon cycling in Arctic tundra ecosystems: The contribution of photosynthates to methane emission – Global Biogeochem. Cycles, 16, doi 10.1029/2001GB001456.
• Larmola T., Alm J., Juutinen S., Huttunen J.T., Martikainen P.J., Silvola J. 2004 – Contribution of vegetated littoral zone to winter fluxes of carbon dioxide and methane from boreal lakes – J. Geophys. Res. 109, doi 10.1029/2004jd004875.
• Melloh R.A., Crill P.M. 1995 – Winter methane dynamics beneath ice and in snow in a temperate poor fen – Hydrol. Process. 9: 947–956.
• Melloh R.A., Crill P.M. 1996 – Winter methane dynamics in a temperate peatland – Global Biogeochem. Cycles, 10: 247–254.
• Mosier A., Schimel D., Valentine D., Bronson K., Parton W. 1991 – Methane and Nitrous-Oxide Fluxes in Native Fertilized and Cultivated Grasslands – Nature, 350: 330–332.
• Nakano T., Kuniyoshi S., Fukuda M. 2000 – Temporal variation in methane emission from tundra wetlands in a permafrost area, northeastern Siberia – Atmos. Environ. 34: 1205–1213.
• Nykanen H., Alm J., Silvola J., Tolonen K., Martikainen P.J. 1998 – Methane fluxes on boreal peatlands of different fertility and the effect of long-term experimental lowering of the water table on flux rates – Global Biogeochem. Cycles, 12: 53–69.
• Panikov N.S., Dedysh S.N. 2000 – Cold season CH4 and CO2 emission from boreal peat bogs (West Siberia): Winter fluxes and thaw activation dynamics – Global Biogeochem. Cycles, 14: 1071–1080.
• Ramaswamy V. 2001 – Radiative forcing of climate change (In: Climate Change 2001: The Scientific Basis, Ed. J.T. Houghton) – Cambridge University Press, NY, USA. pp. 349–416.
• Tokida T., Mizoguchi M., Miyazaki T., Kagemoto A., Nagata O., Hatano R. 2007 – Episodic release of methane bubblesfrom peatland during spring thaw – Chemosphere, 70: 165–171.
• Van Den Pol-Van Dasselaar A., Van Beusichem M. L., Oenema O. 1999 – Determinants of spatial variability of methane emissions from wet grasslands on peat soil – Biogeochemistry, 44: 221–237.
• Whalen S.C., Reeburgh W.S. 1992 – Interannual variations in tundra methane emission a 4-year time series at fixed sites – Global Biogeochem. Cycles, 6: 139–159.
• Williams R.T., Crawford R.L. 1984 – Methane Production in Minnesota Peatlands – Appl. Environ. Microbiol. 47: 1266–1271.
• Wu N. 1997 – Indigenous knowledge and sustainable approaches for the maintenance of biodiversity in nomadic society: Experiencesfrom the eastern Tibetan Plateau – Erde, 128: 67–80.
• Xu B.Q., Yao T.D. 2001 – Dasuopu ice core record of atmospheric methane over the past 2000 years – Sci. in Chinese Ser. D, 44: 689–695.
• Yao T.D., Thompson L.G., Duan K.Q., Xu B.Q., Wang N.L., Pu J.C., Tian L.D., Sun W.Z., Kang S.C., Qin X.A. 2002 – Temperature and methane records over the last 2 ka in Dasuopu ice core – Sci. in Chinese Ser. D, 45: 1068–1074.
• Zhang G.S., Tian J.Q., Jiang N., Guo X.P., Wang Y.F., Dong X. Z. 2008 – Methanogen community in Zoige wetland of Tibetan plateau and phenotypiccharacterization of adominantuncultured methanogen cluster ZC-I – Environ. Microbiol. 10: 1850–1860.