The seasonal cycle of productivity, metabolism and carbon dynamics in a wet aseasonal forest in north-west Amazonia (Iquitos, Peru)
| Autor: | Dennis Del Castillo Torres, José Reyna Huaymacari, Carlos G. Hidalgo, Daniel B. Metcalfe, Kate Halladay, Jack A. Chung Gutierrez, Christopher E. Doughty, Yadvinder Malhi, Jhon del Aguila-Pasquel, Carlos A. Quesada, Oliver L. Phillips, Gilberto Enrique Navarro-Aguilar, Javier E. Silva-Espejo, Cécile A. J. Girardin |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Plant Ecology & Diversity |
| ISSN: | 1755-1668 1755-0874 |
| Popis: | Background: The forests of north-west Amazonia are characterised by the highest levels of tree diversity in the world, high rainfall and relatively fertile soils. Aims: Here we present a comprehensive description of the carbon cycle of two 1 ha forests plots in Allpahuayo, near Iquitos, Peru, one on an occasionally inundated alisol/gleysol landscape, the other on an arenosol (sandy soil). Methods: Data on the components of net primary productivity (NPP) and autotrophic respiration were collected over the period 2009–2011, and summed to estimate gross primary productivity (GPP) and carbon use efficiency (CUE). Results: Overall, these forests showed high values of GPP (39.05 ± 4.59 and 41.88 ± 4.60 Mg C ha−1 year−1). Despite the lack of a dry season, the forests showed distinct seasonality in tree growth, litterfall, flowering and fine root productivity. This showed that tropical forests with little seasonality in water supply can still exhibit distinct seasonality in NPP and carbon use, apparently synchron... |
| Databáze: | OpenAIRE |
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