Artigo

Climate control of terrestrial carbon exchange across biomes and continents

Understanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating effects of positive climate-carbon cycle feedbacks. However, directly observed relationships between...

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Autor principal: Yi, Chuixiang
Outros Autores: Li, Runze, Wolbeck, John, Xu, Xiyan, Nilsson, Mats B., Aires, Luis Miguel Igreja, Albertson, John D., Ammann, Christoph, Arain, Muhammad Altaf, Araüjo, Alessandro Carioca de, Aubinet, Marc, Myklebust, May C., Nagy, Zoltán, Noormets, Asko, Oechel, Walter C., Oren, Ram, Gpallardy, Stephen, Paw U, Kyaw Tha U., Pereira, João Santos, Pilegaard, Kim, Pintér, Krisztina, Aurela, Mika, Pio, Casimiro, Pita, Gabriel P.A., Powell, Thomas L., Rambal, Serge, Randerson, James T., Von Randow, Celso, Rebmann, Corinna, Rinne, Janne, Rossi, Federica, Roulet, Nigel T., Barcza, Zoltán, Ryel, Ronald J., Sagerfors, Jörgen, Saigusa, Nobuko, Sanz-Sanchez, Maria José, Scarascia Mugnozza, G., Schmid, Hans Peter, Seufert, Günther, Siqueira, Mario B.S., Soussana, Jean François, Starr, Gregory, Barr, Alan G., Sutton, Mark A., Tenhunen, John D., Tuba, Zoltán, Tuovinen, Juha Pekka, Valentini, Riccardo, Vogel, Christoph S., Wang, Jingxin, Wang, Shaoqiang, Wang, Weiguo, Welp, Lisa R., Berbigier, Paul, Wen, Xuefa, Wharton, Sonia, Wilkinson, Matthew, Williams, Christopher A., Wohlfahrt, Georg, Yamamoto, Susumu, Yu, Guirui, Zampedri, Roberto, Zhao, Bing, Zhao, Xinquan, Beringer, Jason, Bernhofer, Christian, Black, Thomas Andrew, Bolstad, Paul V., Bosveld, Fred C., Broadmeadow, Mark S.J., Buchmann, Nina, Burns, Sean P.P., Cellier, Pierre, Chen, Jingming, Chen, Jiquan, Ciais, Philippe, Clement, Robert J., Cook, Bruce Douglas, Curtis, Peter S., Dail, David Bryan, Dellwik, Ebba, Delpierre, Nicolas, Desai, Ankur Rashmikant, Dore, Sabina, Dragoni, Danilo, Drake, Bert G., Dufr?ne, Éric, Dunn, Allison L., Elbers, Jan A., Eugster, Werner, Falk, Matthias, Feigenwinter, Christian, Flanagan, Lawrence B., Foken, Thomas, Frank, John M., FUHRER, JÜRG, Gianelle, Damiano, Goldstein, Allen H., Goulden, Michael L., Granier, André, Grünwald, Thomas, Gu, Lianhong, Guo, Haiqiang, Hammerle, Albin, Han, Shijie, Hanan, Niall P., Haszpra, László, Bernhard, Heinesch, Helfter, Carole, Hendriks, Dimmie M.D., Hutley, Lindsay B., Ibrom, Andreas, Jacobs, Cor M.J., Johansson, Torbjörn, Jongen, Marjan, Katul, Gabriel George, Kiely, Gerard K., Klumpp, Katja, Alexander, Knohl,, Kolb, Thomas E., Kutsch, Werner Leo, Lafleu, Peter, Laurila, Tuomas, Leuning, R., Lindroth, A., Liu, Heping, Loubet, Benjamin, Manca, Giovanni, Marek, Michal V., Margolis, Hank A., Martin, Timothy A., Massman, William J., Matamala, Roser M., Matteucci, Giorgio, McCaughey, Harry J., Merbold, Lutz, Meyers, Tilden P., Migliavacca, Mirco, Miglietta, F., Misson, Laurent, Mölder, Meelis, Moncrieff, John B., Monson, Russell K., Montagnani, Leonardo, Montes-Helu, Mario C., Moors, Eddy J., Moureaux, Christine, Mukelabai, Mukufute M., Munger, J. William
Grau: Artigo
Idioma: English
Publicado em: Environmental Research Letters 2020
Assuntos:
Atmospheric Chemistry
Carbon
Carbon Dioxide
Ecosystems
Forestry
Photosynthesis
Temperature
Biomes
Carbon Sequestration
Dryness
Eddy Fluxes
Global Carbon Cycle
Nee
Respiration
Climate Control
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/16282
Resumo:
Understanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating effects of positive climate-carbon cycle feedbacks. However, directly observed relationships between climate and terrestrial CO2exchange with the atmosphere across biomes and continents are lacking. Here we present data describing the relationships between net ecosystem exchange of carbon (NEE) and climate factors as measured using the eddy covariance method at 125 unique sites in various ecosystems over six continents with a total of 559 site-years. We find that NEE observed at eddy covariance sites is (1) a strong function of mean annual temperature at mid- and high-latitudes, (2) a strong function of dryness at mid- and low-latitudes, and (3) a function of both temperature and dryness around the mid-latitudinal belt (45°N). The sensitivity of NEE to mean annual temperature breaks down at ∼16 ®C (a threshold value of mean annual temperature), above which no further increase of CO,.2uptake with temperature was observed and dryness influence overrules temperature influence. © 2010 lOP Publishing Ltd.

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