The effects of partial throughfall exclusion on canopy processes, aboveground production, and biogeochemistry of an Amazon forest

23 de outubro de 2002

out 23, 2002

Daniel C. Nepstad, Paulo Moutinho, Moacyr B. Dias-Filho, Eric Davidson, Gina Cardinot, Daniel Markewitz, Ricardo Figueiredo, Noemi Vianna, J. Chambers, David Ray, J. B. Guerreiros, Paul Lefebvre, Leonel Sternberg, Marcelo Moreira, L. Barros, Françoise Y. Ishida, I. Tohlver, E. Belk, Kemel Kalif, Karen Schwalbe

Moist tropical forests in Amazonia and elsewhere are subjected to increasingly severe drought episodes through the El Niño–Southern Oscillation (ENSO) and possibly through deforestation-driven reductions in rainfall. The effects of this trend on tropical forest canopy dynamics, emissions of greenhouse gases, and other ecological functions are potentially large but poorly understood. We established a throughfall exclusion experiment in an east-central Amazon forest (Tapajo´s National Forest, Brazil) to help understand these effects.

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Overview: Global fire regime conditions, threats, and opportunities for fire management in the tropics

Overview: Global fire regime conditions, threats, and opportunities for fire management in the tropics

The major sources of fire regime alteration worldwide include climate change, agriculture and ranching, deforestation, rural and urban development, energy production, fire exclusion and suppression, invasive species, plantations, and arson. Integrated fire management (IFM) is an approach that considers both damaging and beneficial fires within the context of the natural environments and socio-economic systems in which they occur. IFM takes into account fire ecology, socio-economic issues, and fire management technology to generate practical solutions to fire-related threats to biodiversity.