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Elevated Atmospheric CO2 Increases Root Exudation of Carbon in Wetlands: Results from the First Free-Air CO2 Enrichment Facility (FACE) in a Marshland

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Abstract

Experiments employing free-air CO2 enrichment (FACE) facilities have indicated that elevated atmospheric carbon dioxide (eCO2) stimulates growth in diverse terrestrial ecosystems. Studies of the effects of eCO2 on wetland plants have indicated a similar response, but these studies were mostly performed in growth chambers. We conducted a 2-year FACE experiment [CO2 ≈ 582 µmol mol−1] in a marsh in Spain to test whether the common reed (Phragmites australis) responds to carbon enrichment, as previously reported in other macrophytes. More specifically, we tested the effect of eCO2 on P. australis growth, photosynthesis, transpiration, and biomass, its effect on modifying plant and soil ratios of carbon, nitrogen, and phosphorus, and whether the strong environmental variability of this wetland modulates these responses. Our findings show that effects of eCO2 in this wetland environment are more complex than previously believed, probably due to hydrological effects. The effects of eCO2 on reed plants were cumulative and manifested at the end of the growing season as increased 38–44% instantaneous transpiration efficiency (ratio of net photosynthesis to transpiration), which was dependent on plant age. However, this increase did not result in a significant increase in biomass, because of excessive root exudation of carbon. These observations contrast with previous observations of wetland plants to increased atmospheric CO2 in growth chambers and shed new light on the role of wetland plants as a carbon sink in the face of global climate change. The combined effects of water stress, eCO2, and soil carbon processes must be considered when assessing the function of wetlands as a carbon sink under global change scenarios.

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REFERENCES

  • Ainsworth EA, Long SP. 2005. What have we learned from 15 years of free-air CO2 enrichment (FACE)? A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2. New Phytol 165:351–72.

    Article  PubMed  Google Scholar 

  • Ainsworth EA, Rogers A. 2007. The response of photosynthesis and stomatal conductance to rising [CO2]: mechanisms and environmental interactions. Plant Cell Environ 30:258–70.

    Article  PubMed  CAS  Google Scholar 

  • Andersen T, Andersen FO. 2006. Effects of CO2 concentration on growth of filamentous algae and Littorella uniflora in a Danish softwater lake. Aquat Bot 84:267–71.

    Article  CAS  Google Scholar 

  • Andersen T, Andersen FO, Pedersen O. 2006. Increased CO2 in the water around Littorella uniflora raises the sediment O2 concentration. Aquat Bot 84:294–300.

    Article  CAS  Google Scholar 

  • Bais HP, Weir TL, Perry LG, Gilroy S, Vivanco JM. 2006. The role of root exudates in rhizosphere interactions with plants and other organisms. Annu Rev Plant Biol 57:233–66.

    Article  PubMed  CAS  Google Scholar 

  • Barton CVM, Duursma RA, Medlyn BE, Ellsworth DS, Eamus D, Tissue DT, Adams MA, Conroy J, Crous KY, Liberloo M, Löw M, Linder S, Mcmurtrie RE. 2012. Effects of elevated atmospheric [CO2] on instantaneous transpiration efficiency at leaf and canopy scales in Eucalyptus saligna. Global Change Biol 18:585–95.

    Article  Google Scholar 

  • Brix H, Sorrell BK, Lorenzen B. 2001. Are Phragmites-dominated wetlands a net source or net sink of greenhouse gases? Aquat Bot 69:313–24

    Article  CAS  Google Scholar 

  • Calfapietra C, Ainsworth EA, Beier C, De Angelis P, Ellsworth DS, Godbold DL, Hendrey GR, Hickler T, Hoosbeek MR, Karnosky DF, King J, Körner C, Leakey ADB, Lewin KF, Liberloo M, Long SP, Lukac M, Matyssek R, Miglietta F, Nagy J, Norby RJ, Oren R, Percy KE, Rogers A, Scarascia-Mugnozza G, Stitt M, Taylor G, Ceuleman R. 2010. Challenges in elevated CO2 experiments on forests. Trends in Plant Sci 15:5–10.

    Article  CAS  Google Scholar 

  • Chabbi CA, Hines ME, Rumpel C. 2001. The role of organic carbon excretion by bulbous rush roots and its turnover and utilization by bacteria under iron plaques in extremely acid sediments. Environ Exp Bot 46:237–45.

    Article  CAS  Google Scholar 

  • Cirujano S, Alvarez-Cobelas M, Sánchez-Andrés R. 2010. Macrophyte ecology and its long-term dynamics. In: Sánchez-Carrillo S, Angeler DG, Eds. Ecology of threatened semi-arid wetlands: long-term research in Las Tablas de Daimiel. Dordrecht: Springer. p 175–96.

    Chapter  Google Scholar 

  • Cowan I, Farquhar GD. 1977. Stomatal function in relation to leaf metabolism and environment. Sym Soc Exp Biol 31:471–505.

    CAS  Google Scholar 

  • Decagon. 2001. AccuPAR, linear PAR/LAI ceptometer. Operator’s manual, version 3.4. Decagon Devices, Inc.

  • De Graaff MA, van Groenigen KJ, Six J, Hungate B, van Kessel C. 2006. Interactions between plant growth and soil nutrient cycling under elevated CO2: a meta-analysis. Global Change Biol 12:2077–91.

    Article  Google Scholar 

  • Drake BG, Rasse DP. 2003. The effects of elevated CO2 on plants: photosynthesis, transpiration, primary productivity and biodiversity. Advances Applied Biodiversity Science 4:53–9.

    Google Scholar 

  • Drake BG, González-Meler MA, Long S. 1997. More efficient plants: a consequence of rising atmospheric CO2? Ann Rev Plant Physio 48:609–39.

    Article  CAS  Google Scholar 

  • Eller F, Lambertini C, Nguyen LX, Brix H. 2014. Increased invasive potential of non-native phragmites australis: elevated CO2 and temperature alleviate salinity effects on photosynthesis and growth. Global Change Biol 20:531–43.

    Article  Google Scholar 

  • Fenner N, Ostle NJ, McNamara N, Sparks T, Harmens H, Reynolds Freeman C. 2007. Elevated CO2 effects on peatland plant community carbon dynamics and DOC production. Ecosystems 10:635–47.

    Article  CAS  Google Scholar 

  • Field CB, Ball JT, Berry JA. 1998. Photosynthesis: principles and field techniques. In: Pearcy RW, Ehlinger J, Mooney HA, Hunder PW, Eds. Plant physiological ecology: field methods and instrumentation. London: Chapman and Hall. p 209–53.

    Google Scholar 

  • Grace J, Mitchard E, Gloor E. 2014. Perturbations in the carbon budget of the tropics. Glob Change Biol 20:3238–55.

    Article  Google Scholar 

  • Guo J, Zhang W, Zhang M, Zhang L, Bian X. 2012. Will elevated CO2 enhance mineral bioavailability in wetland ecosystems? Evidence from a rice ecosystem. Plant Soil 355:251–63.

    Article  CAS  Google Scholar 

  • Hara T, van Der Toorn J, Mook JH. 1993. Growth dynamics and size structure of shoots of Phragmites australis, a clonal plant. J Ecol 81:47–60.

    Article  Google Scholar 

  • Hendrey G, Kimball BA. 1994. The FACE program. Agr Forest Meteorol 70:3–14.

    Article  Google Scholar 

  • Holm S. 1979. A simple sequential rejective multiple test procedure. Scandinavian Journal of Statistics 6:65–70.

    Google Scholar 

  • Hoosbeek MR, Lukac M, van Dam D, Godbold DL, Velthorst EJ, Biondi FA, Peressotti A, Cotrufo MF, de Angelis P, Scarascia-Mugnozza G. 2004. More new carbon in the mineral soil of a poplar plantation under Free Air Carbon Enrichment (POPFACE): cause of increased priming effect? Global Biogeochem Cy 18: GB104010.1029/2003GB002127.

  • Hoosbeek MR, van Breemen N, Berendse F, Grosvernier P, Vasander H, Wallen B. 2001. Limited effect of increased atmospheric CO2 concentration on ombrotrophic bog vegetation. New Phytol 150:459–63.

    Article  Google Scholar 

  • Hungate BA, Holland EA, Jackson RB, Chapin FSIII, Mooney HA, Field CB. 1997. The fate of carbon in grasslands under carbon dioxide enrichment. Nature 388:576–9.

    Article  CAS  Google Scholar 

  • Huxman TE, Hamerlynck ET, Moore BD, Smith SD, Jordan DN, Zitzer SF, Nowak RS, Coleman JS, Seemann JR. 1998. Photosynthetic down-regulation in Larrea tridentate exposed to elevated CO2: interaction with drought under glasshouse and field (FACE) exposure. Plant Cell Environ 21:1153–61.

    Article  Google Scholar 

  • Hymus GJ, Johnson DP, Dore S, Anderson H, Hinkle CR, Drake B. 2003. Effects of elevated atmospheric CO2 on net ecosystem CO2 exchange of a scrub-oak ecosystem. Global Change Biol 9:1802–12.

    Article  Google Scholar 

  • Idso SB, Kimball BA. 2001. CO2 enrichment of sour orange trees: 13 years and counting. Environ Exp Bot 46:147–53.

    Article  Google Scholar 

  • Idso SB. 1997. The Poor Man’s Biosphere, including simple techniques for conducting CO2 enrichment and depletion experiments on aquatic and terrestrial plants. Environ Exp Bot 38:15–38.

    Article  Google Scholar 

  • John MK. 1970. Colorimetric determination of phosphorus in soil and plant materials with ascorbic acid. Soil Sci 109:214–20.

    Article  CAS  Google Scholar 

  • Kim SY, Kang H. 2008. Effects of elevated CO2 on below-ground processes in temperate marsh microcosms. Hydrobiologia 605:123–30.

    Article  CAS  Google Scholar 

  • Kimball BA, Pinter PJ, Wall GW, Garcia RL, LaMorte RL, Jak PMC, Frumau KFA, Vugts HF. 1997. Comparisons of responses of vegetation to elevated carbon dioxide in free-air and open-top chamber facilities. Advances in Carbon Dioxide Effects Research. ASA Special Publication 61:113–30.

    Google Scholar 

  • Kiviat E. 2013. Ecosystem services of Phragmites in North America with emphasis on habitat functions. AoB Plants 5:plt008.

    Article  PubMed Central  Google Scholar 

  • Koch MS, Mendelssohn IA, McKee KL. 1990. Mechanism for the hydrogen sulfide-induced growth limitation in wetland macrophytes. Limnol Oceanogr 35:399–408.

    Article  CAS  Google Scholar 

  • Körner C, Arnone JA. 1992. Responses to elevated carbon dioxide in artificial tropical ecosystems. Science 257:1672–5.

    Article  PubMed  Google Scholar 

  • Kozlowski TT, Pallardy SG. 2002. Acclimation and adaptive responses of woody plants to environmental stresses. Bot Rev 68:270–334.

    Article  Google Scholar 

  • Kurtz JC, Yates DF, Macauley JM, Quarles RL, Genthner FJ, Chancy CA, Devereux R. 2003. Effects of light reduction on growth of the submerged macrophyte Vallisneria americana and the community of root-associated heterotrophic bacteria. J Exp Mar Biol Ecol 291:199–218.

    Article  Google Scholar 

  • Langley JA, Megonigal JP. 2010. Ecosystem response to elevated CO2 levels limited by nitrogen-induced plant species shift. Nature 466:96–9.

    Article  PubMed  CAS  Google Scholar 

  • Larue C, Korboulewsky N, Wang R, Mévy JP. 2010. Depollution potential of three macrophytes: exudated, wall-bound and intracellular peroxidase activities plus intracellular phenol concentrations. Bioresource Technol 101:7951–7.

    Article  CAS  Google Scholar 

  • Leakey ADB, Ainsworth EA, Bernacchi CJ, Rogers A, Jones SP, Ort DR. 2009. Elevated CO2 effects on plant carbon, nitrogen, and water relations: six important lessons from FACE. J Exp Bot 60:2859–76.

    Article  PubMed  CAS  Google Scholar 

  • Lecain DR, Morgan JA, Mosier AR, Nelson JA. 2003. Soil and plant water relations determine photosynthetic responses of C3 and C4 grasses in a semi-arid ecosystem under elevated CO2. Ann Bot 92:41–52.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Lee SJ, Overdieck D, Jarvis PG. 1998. Biomass, growth and carbon allocation. In: Jarvis PJ, Ed. European forests and global change: the likely impacts of rising CO2 and temperature. Cambridge: Cambridge University Press. p 126–91.

    Google Scholar 

  • Luo CA, Mooney HA. 1999. Carbon dioxide and environmental stress. San Diego: Academic Press.

    Google Scholar 

  • Marissink M, Pettersson R, Sindhøj E. 2002. Above-ground plant production under elevated carbon dioxide in a Swedish seminatural grassland. Agr Ecosyst Environ 93:107–20.

    Article  Google Scholar 

  • Martín S, Rodríguez M, Moreno JM, Angeler DG. 2014. Complex ecological responses to drought and fire-retardant contamination impacts in ephemeral waters. Water Air Soil Poll 225:2078.

    Article  CAS  Google Scholar 

  • Matamala R, Drake BG. 1999. The influence of atmospheric CO2 enrichment on plant–soil nitrogen interactions in a wetland plant community on the Chesapeake Bay. Plant Soil 210:93–101.

    Article  CAS  Google Scholar 

  • Mateos-Naranjo E, Redondo-Gómez S, Andrades-Moreno L, Davy AJ. 2010. Growth and photosynthetic responses of the cordgrass Spartina maritima to CO2 enrichment and salinity. Chemosphere 81:725–31.

    Article  PubMed  CAS  Google Scholar 

  • Megonigal JP, Schlesinger WH. 1997. Enhanced CH4 emissions from a wetland soil exposed to elevated CO2. Biogeochemistry 37:77–88.

    Article  CAS  Google Scholar 

  • Megonigal JP, Vann CD, Wolf AA. 2005. Flooding constraints on tree (Taxodium distichum) and herb growth responses to elevated CO2. Wetlands 25:430–8.

    Article  Google Scholar 

  • Miglietta F, Hoosbeek MR, Foot J, Gigon F, Hassinen A, Heijmans M, Peressotti A, Saarinen T, Van Breemen N, Wallén B. 2001. Spatial and temporal performance of the MINIFACE (Free air CO2 enrichment) system on bog ecosystems in northern and central Europe. Environ Monit Assess 66:107–27.

    Article  PubMed  CAS  Google Scholar 

  • Millard P, Sommerkorn M, Grelet G-A. 2007. Environmental change and carbon limitation in trees: a biochemical, ecophysiological and ecosystem appraisal. New Phytol 175:11–28.

    Article  PubMed  CAS  Google Scholar 

  • Mitsch WJ, Bernal B, Nahlik AM, Mander U, Zhang L, Anderson CJ, Jørgensen SE, Brix H. 2013. Wetlands carbon, and climate change. Landscape Ecology 28:583–97.

    Article  Google Scholar 

  • Mitsch WJ, Gosselink JG. 2000. Wetlands, 3rd edn. New York: Wiley and Sons.

    Google Scholar 

  • Mozdzer TJ, Megonigal JP. 2012. Jack-and-master trait responses to elevated CO2 and N: a comparison of native and introduced Phragmites australis. PLoS One 7:e42794.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Nash JE, Sutcliffe JV. 1970. River flow forecasting through conceptual models, Part I - A discussion of principles. J Hydrol 10:282–90

    Article  Google Scholar 

  • Norby RJ, Wullschleger SD, Gunderson CA, Johnson DW, Ceulemans R. 1999. Tree responses to rising CO2 in field experiments: implications for the future forest. Plant Cell Environ 22:683–714.

    Article  CAS  Google Scholar 

  • Ojala A, Kankaala P, Tulonen T. 2002. Growth response of Equisetum fluviatile to elevated CO2 and temperature. Environ Exp Bot 47:157–71.

    Article  Google Scholar 

  • Okada M, Lieffering M, Nakamura H, Yoshimoto M, Kim HY, Kobayashi K. 2001. Free-air CO2 enrichment (FACE) using pure CO2 injection: system description. New Phytol 150:251–60.

    Article  Google Scholar 

  • Oren R, Ellsworth DS, Johnsen KH, Phillipsk N, Ewers BE, Maier C, Schaéfer KVR, McCarthy H, Hendrey G, McNulty SG, Katul GG. 2001. Soil fertility limits carbon sequestration by forest ecosystems in a CO2-enriched atmosphere. Nature 411:469–72.

    Article  PubMed  CAS  Google Scholar 

  • Ortíz-Llorente MJ. 2013. Drought and CO2 cycle: response of emergent macrophytes in a wetland. PhD Thesis. Complutense University of Madrid, Spain. http://eprints.ucm.es/24587/1/T35170.pdf.

  • Patger M, Bragato C, Brix H. 2005. Tolerance and physiological responses of Phragmites australis to water deficit. Aquat Bot 81:285–99.

    Article  Google Scholar 

  • Pezeshki SR, DeLaune RD. 2012. Soil oxidation-reduction in wetlands and its impact on plant functioning. Biology 1(2):196–221. doi:10.3390/biology1020196.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Porra RJ, Thompson WA, Kriedemann PE. 1989. Determination of accurate extinction coefficients and simultaneous equations for assaying chlorophylls a and b extracted with four different solvents: verification of the concentration of chlorophyll standards by atomic absorption spectroscopy. Biochim Biophys Acta 975:384–94.

    Article  CAS  Google Scholar 

  • Rasse DP, Peresta G, Drake B. 2005. Seventeen years of elevated CO2 exposure in a Chesapeake Bay Wetland: sustained but contrasting responses of plant growth and CO2 uptake. Global Change Biol 11:369–77.

    Article  Google Scholar 

  • Reddy KR, DeLaune RD. 2008. Biogeochemistry of Wetlands: Science and Applications. Boca Raton: CRC Press.

    Book  Google Scholar 

  • Rogers HH, Runion GB, Krupa SV. 1994. Plant responses to atmospheric CO2 enrichment with emphasis on roots and the rhizosphere. Environ Pollut 83:155–89.

    Article  PubMed  CAS  Google Scholar 

  • Saltmarsh A, Mauchamp A, Rambal S. 2006. Contrasted effects of water limitation on leaf functions and growth of two emergent co-occurring plant species, Cladium mariscus and Phragmites australis. Aquat Bot 84:191–98.

    Article  Google Scholar 

  • Sánchez-Carrillo S, Alvarez-Cobelas M. 2001. Nutrient dynamics and eutrophication patterns in a semiarid wetland: the effects of fluctuating hydrology. Water Air Soil Poll 131:97–118.

    Article  Google Scholar 

  • Sánchez-Carrillo S, Angeler DG, Sánchez-Andrés R, Álvarez-Cobelas M, Garatuza-Payán J. 2004. Evapotranspiration in semiarid wetlands: relationships between inundation and the macrophyte cover: open water ratio. Adv Water Res 27:643–55.

    Article  Google Scholar 

  • Sánchez-Carrillo S, Angeler DG, Eds. 2010. Ecology of threatened semi-arid wetlands: long-term research in Las Tablas de Daimiel. Dordrecht: Springer.

    Google Scholar 

  • Sánchez-Carrillo S, Morea R, Serrano-Grijalva L, Meco A, Sánchez-Andrés R. 2015. A free air CO2 enrichment (FACE) facility in a wetland to study the effects of elevated atmospheric carbon dioxide: system description and performance. Wetlands 35:193–205.

    Article  Google Scholar 

  • Shaw MR, Zavaleta ES, Chiariello NR, Cleland EE, Mooney HA, Field CB. 2002. Grassland responses to global environmental changes suppressed by elevated CO2. Science 298:1987–90.

    Article  PubMed  CAS  Google Scholar 

  • Spence DHN. 1982. The zonation of plants in freshwater lakes. Adv Ecol Res 12:37–125.

    Article  Google Scholar 

  • Sullivan L, Wildova R, Goldberg D, Vogel C. 2010. Growth of three cattail (Typha) taxa in response to elevated CO2. Plant Ecol 207:121–9.

    Article  Google Scholar 

  • Temperton VM, Grayston SJ, Jackson G et al. 2003. Effects of elevated carbon dioxide concentration on growth and nitrogen fixation in Alnus glutinosa in a long-term field experiment. Tree Physiol 23:1051–9.

    Article  PubMed  CAS  Google Scholar 

  • Tewksbury L, Casagrande R, Blossey B, Häfliger P, Schwarzländer M. 2002. Potential for biological control of Phragmites australis in North America. Biol Control 23:191–212.

    Article  Google Scholar 

  • Van der Valk AG, Squires L, Welling CH. 1994. Assessing the impacts of an increase in water level on wetland vegetation. Ecol Appl 4:525–34.

    Article  Google Scholar 

  • Vretare V, Weisner SEB, Strand JA, Granéli W. 2001. Phenotypic plasticity in Phragmites australis as a functional response to water depth. Aquat Bot 69:127–45.

    Article  Google Scholar 

  • Walker TS, Bais HP, Grotewold E, Vivanco JM. 2003. Root exudation and rhizosphere biology. Plant Physiol 132:44–51.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Warren JM, Pötzelsberger E, Wullschleger SD, Thornton PE, Hasenauer H, Norby RJ. 2011. Ecohydrologic impact of reduced stomatal conductance in forests exposed to elevated CO2. Ecohydrology 4:196–210.

    Article  Google Scholar 

  • Weisner SEB, Ekstam B. 1993. Influence of germination time on juvenile performance of Phragmites australis on temporarily exposed bottoms—implications for the colonisation of lakebeds. Aquat Bot 45:107–18.

    Article  Google Scholar 

  • Xu Z, Jiang Y, Jia B, Zhou G. 2016. Elevated-CO2 response of stomata and its dependence on environmental factors. Frontiers in Plant Science 7:657. doi:10.3389/fpls.2016.00657.

    Article  PubMed  PubMed Central  Google Scholar 

  • Yan X, Yu D, Li Y-K. 2006. The effects of elevated CO2 on clonal growth and nutrient content of submerged plant Vallisneria spinulosa. Chemosphere 62:595–601.

    Article  PubMed  CAS  Google Scholar 

  • Wu FY, Chung AK, Tam NF, Wong MH. 2012. Root exudates of wetland plants influenced by nutrient status and types of plant cultivation. Int J Phytoremediation 14(6):543–53.

    Article  PubMed  Google Scholar 

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Acknowledgements

This study was supported by the DECAMERON Project (2008/001) which was funded by the Agency for National Parks of the Spanish Ministry of Agriculture, Food and Environment. Carburos Metálicos SA (Air Products and Chemicals, Inc.) provided additional support for which we are very grateful. The TDNP staff, especially Carlos Ruiz de la Hermosa, and TRAGSA team provided important logistical and technical support. We also thank José Luis Ayala, Carlos Menor, Jesus Iglesias, Adrian Carrero, María José Ortíz, Ana Meco, and Juan Carlos Rodríguez-Murillo for their valuable support during FACE operation and field sampling. LSG and RSA were supported by JAE-PreDoc and JAE-Doc contracts, respectively, which were also funded by the European Social Funds.

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Authors and Affiliations

  1. Department of Biogeochemistry and Microbial Ecology, National Museum of Natural Sciences, MNCN-CSIC, Serrano 115 dpdo, 28006, Madrid, Spain

    Salvador Sánchez-Carrillo, Miguel Álvarez-Cobelas & Lilia Serrano-Grijalva

  2. Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, PO Box 7050, 750 07, Uppsala, Sweden

    David G. Angeler

  3. Department of Biodiversity and Conservation, Royal Botanic Garden, RJB-CSIC, Pza Murillo 2, 28014, Madrid, Spain

    Raquel Sánchez-Andrés & Santos Cirujano

  4. Department of Environment, Centre for Energy, Environment and Technology (CIEMAT), Avda. Complutense 40, 28040, Madrid, Spain

    Thomas Schmid

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  1. Salvador Sánchez-Carrillo
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  2. Miguel Álvarez-Cobelas
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Correspondence to Salvador Sánchez-Carrillo.

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SSC, MAC, and SC conceived and designed the study. SSC, LSG, RSA, and TS conducted field research. SSC, DGA, MAC, SC, and RS analyzed data. SSC wrote the paper with inputs from all authors.

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Sánchez-Carrillo, S., Álvarez-Cobelas, M., Angeler, D.G. et al. Elevated Atmospheric CO2 Increases Root Exudation of Carbon in Wetlands: Results from the First Free-Air CO2 Enrichment Facility (FACE) in a Marshland. Ecosystems 21, 852–867 (2018). https://doi.org/10.1007/s10021-017-0189-x

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