The 2010 Amazon Drought

4 de fevereiro de 2011

fev 4, 2011

Simon L. Lewis, Paulo Brando, Oliver L. Phillips, Geertje M. F. van der Heijden, Daniel Nepstad

In 2010, dry-season rainfall was low across Amazonia, with apparent similarities to the major 2005 drought. We analyzed a decade of satellite-derived rainfall data to compare both events. Standardized anomalies of dry-season rainfall showed that 57% of Amazonia had low rainfall in 2010 as compared with 37% in 2005 (≤–1 standard deviation from long-term mean). By using relationships between drying and forest biomass responses measured for 2005, we predict the impact of the 2010 drought as 2.2 × 1015 grams of carbon [95% confidence intervals (CIs) are 1.2 and 3.4], largely longer-term committed emissions from drought-induced tree deaths, compared with 1.6 ×1015 grams of carbon (CIs 0.8 and 2.6) for the 2005 event.

Full article.

Baixar (sujeito à disponibilidade)

Download (subject to availability)

Veja também

See also

PEC 215: Threat to Rights and to the Environment

PEC 215: Threat to Rights and to the Environment

In addition to enforcing the fundamental rights of indigenous peoples, Indigenous Lands (ILs) are crucial for the maintenance of important ecosystem services. However, this role is under threat. If the Proposed Constitutional Amendment 215 of 2000 (PEC 215/00), currently under discussion in the Brazilian National Congress, is approved, it can cause serious legal insecurity for Indigenous Lands.