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https://repositorio.inpa.gov.br/handle/1/17449
Título: | Diversity enhances carbon storage in tropical forests |
Autor: | Poorter, L. van der Sande, Masha T. Thompson, Jill Arets, Eric J.M.M. Alarcón, Alfredo Álvarez-Sánchez, Javier Ascarrunz, Nataly L. Balvanera, Patricia Barajas-Guzmán, Guadalupe Boit, Alice Bongers, Frans Carvalho, Fernanda Antunes Casanoves, Fernando Cornejo-Tenorio, Guadalupe Costa, Flávia Regina Capellotto Castilho, Carolina Volkmer de Duivenvoorden, Joost F. Dutrieux, Lo?c Paul Enquist, Brian J. Fernández-Méndez, Fernando Finegan, Bryan Gormley, Lorraine H.L. Healey, John R. Hoosbeek, Marcel R. Ibarra-Manríquez, Guillermo Junqueira, André Braga Levis, Carolina Licona, Juan Carlos Lisboa, Leila Sheila Silva Magnusson, William Ernest Martínez-Ramos, Miguel Martínez Yrízar, Angelina Guerreiro, Martorano, Lucieta Maskell, Lindsay C. Lucas, Mazzei, Meave, Jorge A. Mora, Francisco Muñoz, Rodrigo Nytch, Christopher J. Pansonato, Marcelo Petratti Parr, Terry W. Paz, Horacio Pérez-García, Eduardo A. Rentería, Lyliana Y. Rodríguez-Velázquez, Jorge Enrique Rozendaal, Danaë M.A. Ruschel, Ademir Roberto Sakschewski, Boris Salgado-Negret, Beatriz Schietti, Juliana Simões, Margareth G. Sinclair, Fergus Souza, Priscila F. Souza, Fernanda Coelho Stropp, Juliana ter Steege, H. Swenson, Nathan G. Thonicke, Kirsten Toledo, Marisol Uríarte, Ma?ia van der Hout, Peter Walker, P. Zamora, Nelson A. Pena-Claros, Marielos |
Palavras-chave: | Aboveground Biomass Biodiversity Carbon Sequestration Ecosystem Function Neotropical Region Rainfall Soil Fertility Tropical Forest |
Data do documento: | 2015 |
Revista: | Global Ecology and Biogeography |
É parte de: | Volume 24, Número 11, Pags. 1314-1328 |
Abstract: | Aim: Tropical forests store 25% of global carbon and harbour 96% of the world's tree species, but it is not clear whether this high biodiversity matters for carbon storage. Few studies have teased apart the relative importance of forest attributes and environmental drivers for ecosystem functioning, and no such study exists for the tropics. Location: Neotropics. Methods: We relate aboveground biomass (AGB) to forest attributes (diversity and structure) and environmental drivers (annual rainfall and soil fertility) using data from 144,000 trees, 2050 forest plots and 59 forest sites. The sites span the complete latitudinal and climatic gradients in the lowland Neotropics, with rainfall ranging from 750 to 4350mmyear-1. Relationships were analysed within forest sites at scales of 0.1 and 1 ha and across forest sites along large-scale environmental gradients. We used a structural equation model to test the hypothesis that species richness, forest structural attributes and environmental drivers have independent, positive effects on AGB. Results: Across sites, AGB was most strongly driven by rainfall, followed by average tree stem diameter and rarefied species richness, which all had positive effects on AGB. Our indicator of soil fertility (cation exchange capacity) had a negligible effect on AGB, perhaps because we used a global soil database. Taxonomic forest attributes (i.e. species richness, rarefied richness and Shannon diversity) had the strongest relationships with AGB at small spatial scales, where an additional species can still make a difference in terms of niche complementarity, while structural forest attributes (i.e. tree density and tree size) had strong relationships with AGB at all spatial scales. Main conclusions: Biodiversity has an independent, positive effect on AGB and ecosystem functioning, not only in relatively simple temperate systems but also in structurally complex hyperdiverse tropical forests. Biodiversity conservation should therefore be a key component of the UN Reducing Emissions from Deforestation and Degradation strategy. © 2015 John Wiley & Sons Ltd. |
DOI: | 10.1111/geb.12364 |
Aparece nas coleções: | Artigos |
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