Título: | Climate seasonality limits leaf carbon assimilation and wood productivity in tropical forests |
Autor: | Wagner, Fabien H. Hérault, Bruno Bonal, Damien Stahl, Clément Anderson, Liana Oighenstein Baker, Timothy R. Sebastian Becker, Gabriel Beeckman, Hans Boanerges Souza, Danilo Botosso, Paulo César Bowman, David M.J.S. Bräuning, Achim Brede, Benjamin Brown, Irving Foster Camarero, Jesús Julio Camargo, Plínio Barbosa de Cardoso, Fernanda Cristina Gil Carvalho, Fabrício Alvim Castro, Wendeson Koloski Chagas, Rubens Chave, Jérôme Chidumayo, Emmanuel Ngulube Clark, Deborah A. Costa, Flávia Regina Capellotto Couralet, Camille Henrique da Silva Mauricio, Paulo Dalitz, Helmut Resende de Castro, Vinicius Milani, Jaçanan Eloísa de Freitas Consuelo de Oliveira, Edilson Souza Arruda, Luciano de Devineau, Jean Louis Drew, David Michael Dünisch, Oliver Durigan, Giselda Elifuraha, Elisha Fedele, Marcio Ferreira-Fedele, Lígia Figueiredo Filho, Afonso Finger, César Augusto Guimarães Franco, Augusto C. Jnior, Lima Freitas Galväo, Franklin L. Gebrekirstos, Aster Gliniars, Robert Graça, Paulo Maurício Lima Alencastro de Griffiths, Anthony D. Grogan, James Guan, Kaiyu Homeier, Jürgen Raquel Kanieski, Maria Kho, Lip Khoon Koenig, Jennifer Valerio Kohler, Sintia Krepkowski, Julia Lemos-Filho, José Pires de Lieberman, Diana Eugene Lieberman, Milton Lisi, Claudio Longhi-Santos, Tomaz Ayala, Jos Luis Lpez Maeda, Eduardo E. Malhi, Yadvinder Singh Maria, Vivian Ribeiro Baptista Marques, Márcia Cristina Mendes Marques, Renato Matos Maza Chamba, Hector Mbwambo, Lawrence Liana Lisboa Melgaço, Karina Angela Mendivelso, Hooz Murphy, Brett P. O'Brien, Joseph J. Oberbauer, Steven F. Okada, Naoki Ṕlissier, Raphal Prior, Lynda D. Roig, Fidel Alejandro Ross, Michael S. Rodrigo Rossatto, Davi Rossi, Vivien Rowland, Lucy M. Rutishauser, Ervan Santana, Hellen Schulze, Mark D. Selhorst, Diogo Rodrigues Silva, Williamar Silveira, Marcos Spannl, Susanne D., Swaine, Michael Toledo, Jos? Julio Miranda Toledo, Marcos Toledo, Marisol Toma, Takeshi Tommasiello Filho, Mario Ignacio Valdez Hernández, Juan Verbesselt, Jan Vieira, Simone Aparecida Vincent, Grégoire Castilho, Carolina Volkmer de Volland, Franziska Worbes, Martin Lea Bolzan Zanon, Magda Aragao, L. E.O.C. |
Palavras-chave: | Carbon Cycle Data Set Evapotranspiration Experimental Study Leaf Litter Litterfall Photosynthesis Precipitation (climatology) Rainfall Seasonal Variation Seasonality Tropical Forest Wood |
Data do documento: | 2016 |
Revista: | Biogeosciences |
É parte de: | Volume 13, Número 8, Pags. 2537-2562 |
Abstract: | The seasonal climate drivers of the carbon cycle in tropical forests remain poorly known, although these forests account for more carbon assimilation and storage than any other terrestrial ecosystem. Based on a unique combination of seasonal pan-tropical data sets from 89 experimental sites (68 include aboveground wood productivity measurements and 35 litter productivity measurements), their associated canopy photosynthetic capacity (enhanced vegetation index, EVI) and climate, we ask how carbon assimilation and aboveground allocation are related to climate seasonality in tropical forests and how they interact in the seasonal carbon cycle. We found that canopy photosynthetic capacity seasonality responds positively to precipitation when rainfall is < 2000ĝ€-mmĝ€-yrĝ'1 (water-limited forests) and to radiation otherwise (light-limited forests). On the other hand, independent of climate limitations, wood productivity and litterfall are driven by seasonal variation in precipitation and evapotranspiration, respectively. Consequently, light-limited forests present an asynchronism between canopy photosynthetic capacity and wood productivity. First-order control by precipitation likely indicates a decrease in tropical forest productivity in a drier climate in water-limited forest, and in current light-limited forest with future rainfall < 2000ĝ€-mmĝ€-yrĝ'1. Author(s) 2016. |
DOI: | 10.5194/bg-13-2537-2016 |
Aparece nas coleções: | Artigos
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