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Evaluation of CO2 Exchange Rates in a Wetland Ecosystem Using the Closed Geosphere Experiment Facility

Shizuo Suzuki Department of Environmental Simulation, Institute for Environmental Sciences, Rokkasho, Japan

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Masayuki Yokozawa Agro-Meteorology Division, National Institute for Agro-Environmental Sciences, Tsukuba, Japan

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Kazuyuki Inubushi Graduate School of Horticulture, Chiba University, Matsudo, Japan

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Toshihiko Hara Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan

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Michitoshi Kimura ScienTec Co., Ltd., Rokkasho, Japan

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Shoichi Tsuga Department of Environmental Simulation, Institute for Environmental Sciences, Rokkasho, Japan

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Yasuhiro Tako Department of Environmental Simulation, Institute for Environmental Sciences, Rokkasho, Japan

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Yuji Nakamura Department of Environmental Simulation, Institute for Environmental Sciences, Rokkasho, Japan

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Print Publication:
01 Jun 2012
Collections:
Hydrology in Earth System Science and Society (HESSS)
DOI:
https://doi.org/10.1175/JHM-D-10-05033.1
Page(s):
966–980
Restricted access

Abstract

To evaluate annual CO2 exchange rates in a wetland ecosystem, ecosystem respiration rate (Re), net ecosystem productivity (NEP), and gross primary productivity (GPP) were investigated using the Closed Geosphere Experiment Facility (CGEF) located in northeastern Japan. The CGEF is highly airtight and equipped with a Geosphere Module (GM). The GM has a ground area of 5.8 × 8.7 m2 and an average height of 11.9 m, including a soil depth of 3.1 m. A wetland ecosystem dominated by Phragmites australis was introduced into the CGEF. Air temperature and CO2 concentration in the GM were controlled automatically. The hourly nighttime Re increased exponentially with the hourly average air temperature. Both hourly NEP and GPP depended on hourly photosynthetic photon flux density (PPFD). In addition, daily ecosystem CO2 exchange rates (Re, NEP, and GPP) were influenced by above-ground plant biomass. The annual NEP was found to be 64.2 ± 19.2 g C m−2 yr−1 and it resulted from the annual GPP of 555.8 ± 17.0 g C m−2 yr−1 and annual Re of −491.6 ± 15.6 g C m−2 yr−1. Therefore, the wetland ecosystem behaved as a CO2 sink for the entire year. The annual CO2 exchange rates obtained were reasonable values compared to the findings of published studies in P. australis–dominated wild wetlands using the eddy covariance technique and the combined method of internal gas pressures and flow measurements and harvesting.

Corresponding author address: Shizuo Suzuki, Department of Environmental Simulation, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Aomori 039-3212, Japan. E-mail: shizuo@ies.or.jp

This article is included in the Hydrology in Earth System Science and Society (HESSS) special collection.

Abstract

To evaluate annual CO2 exchange rates in a wetland ecosystem, ecosystem respiration rate (Re), net ecosystem productivity (NEP), and gross primary productivity (GPP) were investigated using the Closed Geosphere Experiment Facility (CGEF) located in northeastern Japan. The CGEF is highly airtight and equipped with a Geosphere Module (GM). The GM has a ground area of 5.8 × 8.7 m2 and an average height of 11.9 m, including a soil depth of 3.1 m. A wetland ecosystem dominated by Phragmites australis was introduced into the CGEF. Air temperature and CO2 concentration in the GM were controlled automatically. The hourly nighttime Re increased exponentially with the hourly average air temperature. Both hourly NEP and GPP depended on hourly photosynthetic photon flux density (PPFD). In addition, daily ecosystem CO2 exchange rates (Re, NEP, and GPP) were influenced by above-ground plant biomass. The annual NEP was found to be 64.2 ± 19.2 g C m−2 yr−1 and it resulted from the annual GPP of 555.8 ± 17.0 g C m−2 yr−1 and annual Re of −491.6 ± 15.6 g C m−2 yr−1. Therefore, the wetland ecosystem behaved as a CO2 sink for the entire year. The annual CO2 exchange rates obtained were reasonable values compared to the findings of published studies in P. australis–dominated wild wetlands using the eddy covariance technique and the combined method of internal gas pressures and flow measurements and harvesting.

Corresponding author address: Shizuo Suzuki, Department of Environmental Simulation, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Aomori 039-3212, Japan. E-mail: shizuo@ies.or.jp

This article is included in the Hydrology in Earth System Science and Society (HESSS) special collection.

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  • Armstrong, J., and Armstrong W. , 1990: Light-enhanced convective throughflow increases oxygenation in rhizomes and rhizosphere of Phragmites australis (Cav.) Trin. ex Steud. New Phytol., 114, 121–128.

    • Search Google Scholar
    • Export Citation

  • Baldocchi, D., 2003: Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: Past, present and future. Global Change Biol., 9, 479–492.

    • Search Google Scholar
    • Export Citation

  • Bonneville, M., Strachan I. , Humphreys E. , and Roulet N. , 2008: Net ecosystem CO2 exchange in a temperate cattail marsh in relation to biophysical properties. Agric. For. Meteor., 148, 69–81.

    • Search Google Scholar
    • Export Citation

  • Bridgham, S., and Richardson C. , 1992: Mechanisms controlling soil respiration (CO2 and CH4) in southern peatlands. Soil Biol. Biochem., 24, 1089–1099.

    • Search Google Scholar
    • Export Citation

  • Brix, H., 1999: Genetic diversity, ecophysiology and growth dynamics of reed (Phragmites australis). Aquat. Bot., 64, 179–184.

  • Brix, H., Sorrell B. K. , and Orr P. T. , 1992: Internal pressurization and convective gas flow in some emergent freshwater macrophytes. Limnol. Oceanogr., 37, 1420–1433.

    • Search Google Scholar
    • Export Citation

  • Brix, H., Sorrell B. K. , and Schierup H. H. , 1996: Gas fluxes achieved by in situ convective flow in Phragmites australis. Aquat. Bot., 54, 151–163.

    • Search Google Scholar
    • Export Citation

  • Brix, H., Sorrell B. K. , and Lorenzen B. , 2001: Are Phragmites-dominated wetlands a net source or net sink of greenhouse gases? Aquat. Bot., 69, 313–324.

    • Search Google Scholar
    • Export Citation

  • Bubier, J., Bhatia G. , Moore T. , Roulet N. , and Lafleur P. , 2003: Spatial and temporal variability in growing-season net ecosystem carbon dioxide exchange at a large peatland in Ontario, Canada. Ecosystems, 6, 353–367.

    • Search Google Scholar
    • Export Citation

  • Chambers, R. M., Meyerson L. A. , and Saltonstall K. , 1999: Expansion of Phragmites australis into tidal wetlands of North America. Aquat. Bot., 64, 261–273.

    • Search Google Scholar
    • Export Citation

  • Clevering, O., and Lissner J. , 1999: Taxonomy, chromosome numbers, clonal diversity and population dynamics of Phragmites australis. Aquat. Bot., 64, 185–208.

    • Search Google Scholar
    • Export Citation

  • Cox, P. M., Betts R. A. , Jones C. D. , Spall S. A. , and Totterdell I. J. , 2000: Acceleration of global warming due to carbon-cycle feedbacks in a coupled climate model. Nature, 408, 184–187.

    • Search Google Scholar
    • Export Citation

  • Dunn, A., Barford C. , Wofsy S. , Goulden M. , and Daube B. , 2007: A long-term record of carbon exchange in a boreal black spruce forest: Means, responses to interannual variability, and decadal trends. Global Change Biol., 13, 577–590.

    • Search Google Scholar
    • Export Citation

  • Falge, E., and Coauthors, 2001: Gap filling strategies for defensible annual sums of net ecosystem exchange. Agric. For. Meteor., 107, 43–69.

    • Search Google Scholar
    • Export Citation

  • Flanagan, L. B., Wever L. A. , and Carlson P. J. , 2002: Seasonal and interannual variation in carbon dioxide exchange and carbon balance in a northern temperate grassland. Global Change Biol., 8, 599–615.

    • Search Google Scholar
    • Export Citation

  • Goulden, M. L., and Coauthors, 1998: Sensitivity of boreal forest carbon balance to soil thaw. Science, 279, 214–217.

  • Guo, H., Noormets A. , Zhao B. , Chen J. , Sun G. , Gu Y. , and Li B. , 2009: Tidal effects on net ecosystem exchange of carbon in an estuarine wetland. Agric. For. Meteor., 149, 1820–1828.

    • Search Google Scholar
    • Export Citation

  • Harazono, Y., Mano M. , Miyata A. , Zulueta R. , and Oechel W. , 2003: Inter-annual carbon dioxide uptake of a wet sedge tundra ecosystem in the Arctic. Tellus, 55B, 215–231.

    • Search Google Scholar
    • Export Citation

  • Houghton, R., 2003: Why are estimates of the terrestrial carbon balance so different? Global Change Biol., 9, 500–509.

  • Japan Meteorological Agency, 2009: AMeDAS Observations and Statistical Data 2009 Edition. Japan Meteorological Business Support Center, CD-ROM.

  • Jones, H., Pomeroy J. , Davies T. , Tranter M. , and Marsh P. , 1999: CO2 in Arctic snow cover: Landscape form, in-pack gas concentration gradients, and the implications for the estimation of gaseous fluxes. Hydrol. Processes, 13, 2977–2989.

    • Search Google Scholar
    • Export Citation

  • Kanno, H., 1997: Classification of the Yamase (cold northeasterly wind around northeastern Japan) based upon its air-mass vertical structures. J. Meteor. Soc. Japan, 75, 1053–1071.

    • Search Google Scholar
    • Export Citation

  • Lessmann, J. M., Brix H. , Bauer V. , Clevering O. A. , and Comín F. A. , 2001: Effect of climatic gradients on the photosynthetic responses of four Phragmites australis populations. Aquat. Bot., 69, 109–126.

    • Search Google Scholar
    • Export Citation

  • Malhi, Y., Baldocchi D. , and Jarvis P. , 1999: The carbon balance of tropical, temperate and boreal forests. Plant Cell Environ., 22, 715–740.

    • Search Google Scholar
    • Export Citation

  • Margolis, H., Flanagan L. , and Amiro B. , 2006: The Fluxnet-Canada research network: Influence of climate and disturbance on carbon cycling in forests and peatlands. Agric. For. Meteor., 140, 1–5.

    • Search Google Scholar
    • Export Citation

  • Marsh, A., Rasse D. , Drake B. , and Megonigal J. P. , 2005: Effect of elevated CO2 on carbon pools and fluxes in a brackish marsh. Estuaries, 28, 694–704.

    • Search Google Scholar
    • Export Citation

  • Mooney, H., Drake B. , Luxmoore R. , Oechel W. , and Pitelka L. , 1991: Predicting ecosystem responses to elevated CO2 concentrations. Bioscience, 41, 96–104.

    • Search Google Scholar
    • Export Citation

  • Osada, T., 1993: Illustrated Grasses of Japan. Enlarged ed. Heibonsha, 777 pp.

  • Peng, Y., Tu W. , Bao W. , Gao X. , Wu N. , Luo P. , and Xiao W. , 2008: Aboveground biomass allocation and growth of Phragmites australis ramets at four water depths in the Jiuzhaigou Nature Reserve, China. Chin. J. Appl. Environ. Biol., 14, 153–157.

    • Search Google Scholar
    • Export Citation

  • Rice, D., Rooth J. , and Stevenson J. C. , 2000: Colonization and expansion of Phragmites australis in upper Chesapeake Bay tidal marshes. Wetlands, 20, 280–299.

    • Search Google Scholar
    • Export Citation

  • Ryan, M., 1991: Effects of climate change on plant respiration. Ecol. Appl., 1, 157–167.

  • Sabine, C., and Coauthors, 2004: Current status and past trends of the global carbon cycle. The Global Carbon Cycle: Integrating Humans, Climate, and the Natural World, C. Field and M. Raupach, Eds., SCOPE Series, Vol. 62, Island Press, 17–44.

  • Saltonstall, K., 2002: Cryptic invasion by a non-native genotype of the common reed, Phragmites australis, into North America. Proc. Natl. Acad. Sci. USA, 99, 2445–2449.

    • Search Google Scholar
    • Export Citation

  • Schedlbauer, J., Oberbauer S. , Starr G. , and Jimenez K. , 2010: Seasonal differences in the CO2 exchange of a short-hydroperiod Florida Everglades marsh. Agric. For. Meteor., 150, 994–1006.

    • Search Google Scholar
    • Export Citation

  • Schimel, D., 1995: Terrestrial ecosystems and the carbon cycle. Global Change Biol., 1, 77–91.

  • Shaver, G., Billings W. , Chapin F. S. III, Giblin A. , Nadelhoffer K. , Oechel W. , and Rastetter E. , 1992: Global change and the carbon balance of arctic ecosystems. Bioscience, 42, 433–441.

    • Search Google Scholar
    • Export Citation

  • Suzuki, S., and Endo M. , 2007: Studies on construction of a wetland ecosystem and carbon transfer in the Closed Geosphere Experiment Facility (in Japanese with English abstract, figures, and tables). Annual Bulletin of Institute for Environmental Sciences, Institute for Environmental Sciences, Rokkasho, Aomori, Japan, 45–47.

  • Suzuki, S., Inubushi K. , Yokozawa M. , Hara T. , Tsuga S. , Endo M. , and Nitta K. , 2008: Research on carbon dynamics in a wetland ecosystem dominated by Phragmites australis using the Closed Geosphere Experiment Facility. Proc. Int. Symp. on Application of a Closed Experimental System to Modeling of 14C Transfer in the Environment, Rokkasho, Japan, Institute for Environmental Sciences, 64–71.

  • Suzuki, S., Endo M. , Tsuga S. , Fukuda S. , Kaga K. , and Nitta K. , 2010a: Initial performance tests of the Closed Geosphere Experiment Facility (CGEF) for investigation of ecosystem carbon cycles. Environ. Control Biol., 48, 25–34.

    • Search Google Scholar
    • Export Citation

  • Suzuki, S., Tsuga S. , Fukuda S. , Kaga K. , Endo M. , and Nitta K. , 2010b: A method to monitor air leakage from the Closed Geosphere Experiment Facility (CGEF) for investigation of net ecosystem carbon balance. Eco-Engineering, 22, 147–152.

    • Search Google Scholar
    • Export Citation

  • Taylor, J. R., 1997: An Introduction to Error Analysis: The Study of Uncertainties in Physical Measurements. 2nd ed. University Science Books, 327 pp.

  • Valentini, R., and Coauthors, 2000: Respiration as the main determinant of carbon balance in European forests. Nature, 404, 861–865.

  • Waddington, J., and Roulet N. , 2008: Carbon balance of a boreal patterned peatland. Global Change Biol., 6, 87–97.

  • Yan, Y., Zhao B. , Chen J. , Guo H. , Gu Y. , Wu Q. , and Li B. , 2008: Closing the carbon budget of estuarine wetlands with tower-based measurements and MODIS time series. Global Change Biol., 14, 1690–1702.

    • Search Google Scholar
    • Export Citation

  • Yan, Y., Guo H. , Gao Y. , Zhao B. , Chen J. , Li B. , and Chen J. , 2010: Variations of net ecosystem CO2 exchange in a tidal inundated wetland: Coupling MODIS and tower-based fluxes. J. Geophys. Res., 115, D15102, doi:10.1029/2009JD012838.

    • Search Google Scholar
    • Export Citation

  • Zhao, L., Li Y. , Xu S. , Zhou H. , Gu S. , Yu G. , and Zhao X. , 2006: Diurnal, seasonal and annual variation in net ecosystem CO2 exchange of an alpine shrubland on Qinghai-Tibetan plateau. Global Change Biol., 12, 1940–1953.

    • Search Google Scholar
    • Export Citation

  • Zhou, L., Zhou G. , and Jia Q. , 2009: Annual cycle of CO2 exchange over a reed (Phragmites australis) wetland in Northeast China. Aquat. Bot., 91, 91–98.

    • Search Google Scholar
    • Export Citation
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