Drought Sensitivity of the Amazon Rainforest
Author:
Phillips Oliver L.12345, Aragão Luiz E. O. C.12345, Lewis Simon L.12345, Fisher Joshua B.12345, Lloyd Jon12345, López-González Gabriela12345, Malhi Yadvinder12345, Monteagudo Abel12345, Peacock Julie12345, Quesada Carlos A.12345, van der Heijden Geertje12345, Almeida Samuel12345, Amaral Iêda12345, Arroyo Luzmila12345, Aymard Gerardo12345, Baker Tim R.12345, Bánki Olaf12345, Blanc Lilian12345, Bonal Damien12345, Brando Paulo12345, Chave Jerome12345, de Oliveira Átila Cristina Alves12345, Cardozo Nallaret Dávila12345, Czimczik Claudia I.12345, Feldpausch Ted R.12345, Freitas Maria Aparecida12345, Gloor Emanuel12345, Higuchi Niro12345, Jiménez Eliana12345, Lloyd Gareth12345, Meir Patrick12345, Mendoza Casimiro12345, Morel Alexandra12345, Neill David A.12345, Nepstad Daniel12345, Patiño Sandra12345, Peñuela Maria Cristina12345, Prieto Adriana12345, Ramírez Fredy12345, Schwarz Michael12345, Silva Javier12345, Silveira Marcos12345, Thomas Anne Sota12345, Steege Hans ter12345, Stropp Juliana12345, Vásquez Rodolfo12345, Zelazowski Przemyslaw12345, Dávila Esteban Alvarez12345, Andelman Sandy12345, Andrade Ana12345, Chao Kuo-Jung12345, Erwin Terry12345, Di Fiore Anthony12345, C. Eurídice Honorio12345, Keeling Helen12345, Killeen Tim J.12345, Laurance William F.12345, Cruz Antonio Peña12345, Pitman Nigel C. A.12345, Vargas Percy Núñez12345, Ramírez-Angulo Hirma12345, Rudas Agustín12345, Salamão Rafael12345, Silva Natalino12345, Terborgh John12345, Torres-Lezama Armando12345
Affiliation:
1. Ecology and Global Change, School of Geography, University of Leeds, Leeds LS2 9JT, UK. 2. Environmental Change Institute, School of Geography and Environment, Oxford University, Oxford OX1 3QY, UK. 3. Jardín Botánico de Missouri, Oxapampa, Pasco, Peru. 4. Instituto Nacional de Pesquisas na Amazônia, Av. Andre Araujo, 1753 CP 478, 69060-011 Manaus AM, Brasil. 5. Museu Paraense Emílio Goeldi, Av. Perimetral, 1901 Terra Firme, CEP: 66077-830 Belém PA, Brasil.
Abstract
Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate climate change through carbon losses and changed surface energy balances. We used records from multiple long-term monitoring plots across Amazonia to assess forest responses to the intense 2005 drought, a possible analog of future events. Affected forest lost biomass, reversing a large long-term carbon sink, with the greatest impacts observed where the dry season was unusually intense. Relative to pre-2005 conditions, forest subjected to a 100-millimeter increase in water deficit lost 5.3 megagrams of aboveground biomass of carbon per hectare. The drought had a total biomass carbon impact of 1.2 to 1.6 petagrams (1.2 × 10
15
to 1.6 × 10
15
grams). Amazon forests therefore appear vulnerable to increasing moisture stress, with the potential for large carbon losses to exert feedback on climate change.
Publisher
American Association for the Advancement of Science (AAAS)
Subject
Multidisciplinary
Reference34 articles.
1. Climate Change, Deforestation, and the Fate of the Amazon 2. Y. Malhi, J. Grace, Trends Ecol. Evol.15, 332 (2000). 3. Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change 2007 4. L. F. Salazar, C. A. Nobre, M. D. Oyama, Geophys. Res. Lett.34, L09708 (2007). 5. P. M. Coxet al., Nature453, 212 (2008).
Cited by
1410 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|