Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Litter mercury deposition in the Amazonian rainforest

Full text
Author(s):
Fostier, Anne Helene [1] ; Melendez-Perez, Jose Javier [1] ; Richter, Larissa [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, UNICAMP, Inst Chem, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Environmental Pollution; v. 206, p. 605-610, NOV 2015.
Web of Science Citations: 14
Abstract

The objective of this work was to assess the flux of atmospheric mercury transferred to the soil of the Amazonian rainforest by litterfall. Calculations were based on a large survey of published and unpublished data on litterfall and Hg concentrations in litterfall samples from the Amazonian region. Litterfall based on 65 sites located in the Amazon rainforest averaged 8.15 +/- 2.25 Mg ha(-1) y(-1). Average Hg concentrations were calculated from nine datasets for fresh tree leaves and ten datasets for litter, and a median concentration of 60.5 ng Hg g(-1) was considered for Hg deposition in litterfall, which averaged 49 +/- 14 mu g m(-2) yr(-1). This value was used to estimate that in the Amazonian rainforest, litterfall would be responsible for the annual removing of 268 +/- 77 Mg of Hg, approximately 8% of the total atmospheric Hg deposition to land. The impact of the Amazon deforestation on the Hg biogeochemical cycle is also discussed. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 14/00555-5 - Mercury emissions from soil and litter during forest burning
Grantee:Larissa Richter
Support type: Scholarships in Brazil - Master
FAPESP's process: 08/04490-4 - Combustion of tropical forest biomass
Grantee:João Andrade de Carvalho Junior
Support type: Research Projects - Thematic Grants
FAPESP's process: 10/19040-4 - Impact of deforestation on mercury emissions in tropical forest from the Amazonian region
Grantee:Anne Helene Fostier
Support type: Regular Research Grants