globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1416267112
论文题名:
The uncertain climate footprint of wetlands under human pressure
作者: Petrescu A.M.R.; Lohila A.; Tuovinen J.-P.; Baldocchi D.D.; Desai A.R.; Roulet N.T.; Vesala T.; Dolman A.J.; Oechel W.C.; Marcolla B.; Friborg T.; Rinne J.; Matthes J.H.; Merbold L.; Meijide A.; Kiely G.; Sottocornola M.; Sachs T.; Zona D.; Varlagin A.; Lai D.Y.F.; Veenendaal E.; Parmentier F.-J.W.; Skiba U.; Lund M.; Hensen A.; Van Huissteden J.; Flanagan L.B.; Shurpali N.J.; Grünwald T.; Humphreys E.R.; Jackowicz-Korczyński M.; Aurela M.A.; Laurila T.; Grüning C.; Corradi C.A.R.; Schrier-Uijl A.P.; Christensen T.R.; Tamstorf M.P.; Mastepanov M.; Martikainen P.J.; Verma S.B.; Bernhofer C.; Cescatti A.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2015
卷: 112, 期:15
起始页码: 4594
结束页码: 4599
语种: 英语
英文关键词: Carbon dioxide ; Methane ; Radiative forcing ; Wetland conversion
Scopus关键词: carbon dioxide ; methane ; nitrous oxide ; Article ; carbon footprint ; carbon sequestration ; chronosequence ; climate ; climate change ; climate footprint ; ecosystem ; environmental impact ; human ; human activities ; priority journal ; radiation attenuation ; spatiotemporal analysis ; wetland ; classification ; climate change ; ecology ; ecosystem ; geography ; metabolism ; plant ; procedures ; temperature ; theoretical model ; uncertainty ; Carbon Dioxide ; Climate ; Climate Change ; Ecology ; Ecosystem ; Geography ; Human Activities ; Humans ; Methane ; Models, Theoretical ; Nitrous Oxide ; Plants ; Temperature ; Uncertainty ; Wetlands
英文摘要: Significant climate risks are associated with a positive carbon-temperature feedback in northern latitude carbon-rich ecosystems, making an accurate analysis of human impacts on the net greenhouse gas balance of wetlands a priority. Here, we provide a coherent assessment of the climate footprint of a network of wetland sites based on simultaneous and quasi-continuous ecosystem observations of CO2 and CH4 fluxes. Experimental areas are located both in natural and in managed wetlands and cover a wide range of climatic regions, ecosystem types, and management practices. Based on direct observations we predict that sustained CH4 emissions in natural ecosystems are in the long term (i.e., several centuries) typically offset by CO2 uptake, although with large spatiotemporal variability. Using a space-for-time analogy across ecological and climatic gradients, we represent the chronosequence from natural to managed conditions to quantify the "cost" of CH4 emissions for the benefit of net carbon sequestration. With a sustained pulse-response radiative forcing model, we found a significant increase in atmospheric forcing due to land management, in particular for wetland converted to cropland. Our results quantify the role of human activities on the climate footprint of northern wetlands and call for development of active mitigation strategies for managed wetlands and new guidelines of the Intergovernmental Panel on Climate Change (IPCC) accounting for both sustained CH4 emissions and cumulative CO2 exchange. © 2015, National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162208
Appears in Collections:气候变化与战略

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作者单位: Petrescu, A.M.R., European Commission, Joint Research Center, Institute for Environment and Sustainability, Ispra (VA), 21027, Italy; Lohila, A., Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, FI-00101, Finland; Tuovinen, J.-P., Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, FI-00101, Finland; Baldocchi, D.D., Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA 94720, United States; Desai, A.R., Atmospheric and Oceanic Sciences Department, University of Wisconsin-Madison, Madison, WI 53706, United States; Roulet, N.T., Department of Geography, Global Environmental and Climate Change Research Centre, McGill University, Montreal, QC H3A 2K6, Canada; Vesala, T., Department of Physics, University of Helsinki, Helsinki, FIN-00014, Finland, Department of Forest Sciences, University of Helsinki, Helsinki, FIN-00014, Finland; Dolman, A.J., Department of Earth Sciences, Earth and Climate Cluster, VU University Amsterdam, Amsterdam, 1081 HV, Netherlands; Oechel, W.C., Global Change Research Group, Department of Biology, San Diego State University, San Diego, CA 92182, United States; Marcolla, B., Sustainable Agro-ecosystems and Bioresources Department, Fondazione Edmund Mach, S. Michele all'Adige (TN), 1 I-38010, Italy; Friborg, T., CENter for PERMafrost, Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, 1350 K, Denmark; Rinne, J., Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, FI-00101, Finland, Department of Physics, University of Helsinki, Helsinki, FIN-00014, Finland, Department of Geosciences and Geography, University of Helsinki, Helsinki, FIN-00014, Finland; Matthes, J.H., Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA 94720, United States, Department of Geography, Dartmouth College, 6017 Fairchild Hall, Hanover, NH 03755, United States; Merbold, L., Department of Environmental Systems Science, Institute of Agricultural Sciences, ETH Zurich, Zurich, 8092, Switzerland; Meijide, A., European Commission, Joint Research Center, Institute for Environment and Sustainability, Ispra (VA), 21027, Italy, Bioclimatology Group, Georg-August-University Göttingen, Büsgenweg 2, Göttingen, 37077, Germany; Kiely, G., Civil and Environmental Engineering Department, Environmental Research Institute, University College Cork, Cork, Ireland; Sottocornola, M., Civil and Environmental Engineering Department, Environmental Research Institute, University College Cork, Cork, Ireland, Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland; Sachs, T., Helmholtz Centre Potsdam (GFZ) (Geoforschungszentrum) German Research Centre for Geosciences, Department of Inorganic and Isotope Geochemistry, Potsdam, 14473, Germany; Zona, D., Global Change Research Group, Department of Biology, San Diego State University, San Diego, CA 92182, United States, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, United Kingdom; Varlagin, A., A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 119071, Russian Federation; Lai, D.Y.F., Department of Geography and Resource Management, Chinese University of Hong Kong, Hong Kong, Hong Kong; Veenendaal, E., Nature Conservation and Plant Ecology Group, Wageningen University, Wageningen, 6700 AA, Netherlands; Parmentier, F.-J.W., Department of Physical Geography and Ecosystem Science, Lund University, Lund, SE-223 62, Sweden, Arctic Research Centre, Department of Bioscience, Aarhus University, Roskilde, DK-4000, Denmark; Skiba, U., Centre for Ecology and Hydrology, Bush Estate, Penicuik, EH26 0QB, United Kingdom; Lund, M., Department of Physical Geography and Ecosystem Science, Lund University, Lund, SE-223 62, Sweden, Arctic Research Centre, Department of Bioscience, Aarhus University, Roskilde, DK-4000, Denmark; Hensen, A., Energy Research Centre of the Netherlands (Energieonderzoek Centrum Nederland), Environmental Research, Petten, 1755 ZG, Netherlands; Van Huissteden, J., Department of Earth Sciences, Earth and Climate Cluster, VU University Amsterdam, Amsterdam, 1081 HV, Netherlands; Flanagan, L.B., Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; Shurpali, N.J., Department of Environmental Science, University of Eastern Finland, Kuopio, FIN-70211, Finland; Grünwald, T., Institute of Hydrology and Meteorology, Department of Meteorology, Technische Universiẗt Dresden, Dresden, D-01062, Germany; Humphreys, E.R., Department of Geography and Environmental Studies, Carleton University, Ottawa, ON K1S 5B6, Canada; Jackowicz-Korczyński, M., Department of Physical Geography and Ecosystem Science, Lund University, Lund, SE-223 62, Sweden; Aurela, M.A., Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, FI-00101, Finland; Laurila, T., Atmospheric Composition Research, Finnish Meteorological Institute, Helsinki, FI-00101, Finland; Grüning, C., European Commission, Joint Research Center, Institute for Environment and Sustainability, Ispra (VA), 21027, Italy; Corradi, C.A.R., Laboratory of Forest Ecology, Department of Forest, Environment, and Resources, University of Tuscia of Viterbo, Viterbo, 01100, Italy; Schrier-Uijl, A.P., Nature Conservation and Plant Ecology Group, Wageningen University, Wageningen, 6700 AA, Netherlands; Christensen, T.R., Department of Physical Geography and Ecosystem Science, Lund University, Lund, SE-223 62, Sweden, Arctic Research Centre, Department of Bioscience, Aarhus University, Roskilde, DK-4000, Denmark; Tamstorf, M.P., Arctic Research Centre, Department of Bioscience, Aarhus University, Roskilde, DK-4000, Denmark; Mastepanov, M., Department of Physical Geography and Ecosystem Science, Lund University, Lund, SE-223 62, Sweden, Arctic Research Centre, Department of Bioscience, Aarhus University, Roskilde, DK-4000, Denmark; Martikainen, P.J., Department of Environmental Science, University of Eastern Finland, Kuopio, FIN-70211, Finland; Verma, S.B., School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE 68583, United States; Bernhofer, C., Institute of Hydrology and Meteorology, Department of Meteorology, Technische Universiẗt Dresden, Dresden, D-01062, Germany; Cescatti, A., European Commission, Joint Research Center, Institute for Environment and Sustainability, Ispra (VA), 21027, Italy

Recommended Citation:
Petrescu A.M.R.,Lohila A.,Tuovinen J.-P.,et al. The uncertain climate footprint of wetlands under human pressure[J]. Proceedings of the National Academy of Sciences of the United States of America,2015-01-01,112(15)
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