Boy, J.; Rollenbeck, R.; Valarezo, C. & Wilcke, W. (2008): <b>Amazonian biomass burning-derived acid and nutrient deposition in the north Andean montane forest of Ecuador</b>. <i>Global Biogeochemical Cycles</i> <b>22</b>, GB4011.
Resource Description
Title:
Amazonian biomass burning-derived acid and nutrient deposition in the north Andean montane forest of Ecuador
Short Name:
Acid and nutrient deposition in Ecuador
FOR816dw ID:
336
Publication Date:
2008-11-18
License and Usage Rights:
Resource Owner(s):
Individual:
Jens Boy
Contact:
email:
boy <at> ifbk.uni-hannover.de
D-30419 Hannover
Germany
Individual:
Ruetger Rollenbeck
Contact:
email:
rollenbe <at> staff.uni-marburg.de
Laboratory for Climatology and Remote Sensing
Faculty of Geography
Philipps University of Marburg
Deutschhausstr. 10
35032 Marburg
Germany
email:
wolfgang.wilcke <at> kit.edu
Karlsruhe Institute of Technology
Institute of Geography and Geoecology
Reinhard-Baumeister-Platz 1
76131 Karlsruhe
Baden-Württemberg
Germany
Abstract:
We explored the influence of biomass burning in Amazonia and northeastern Latin<br/>
America on N, C, P, S, K, Ca, Mg, Al, Mn, and Zn cycles of an Andean montane forest in<br/>
south Ecuador exposed to the Amazon basin between May 1998 and April 2003. We<br/>
assessed the response of the element budget of three microcatchments (8?13 ha) to the<br/>
variations in atmospheric deposition between the intensive burning season and outside<br/>
the burning season in Amazonia. There were significantly elevated H, N, and Mn<br/>
depositions during biomass burning. Elevated H deposition during biomass burning<br/>
caused elevated base metal loss from the canopy and the organic horizon and<br/>
deteriorated already low base metal supply of the vegetation. N was only retained<br/>
during biomass burning but not during nonfire conditions when deposition was much<br/>
smaller. We conclude that biomass burning-related aerosol emissions in Amazonia are<br/>
large enough to substantially increase element deposition at the western rim of<br/>
Amazonia. Particularly the related increase of acid deposition impoverishes already base<br/>
metal scarce ecosystems. As biomass burning is most intense during El Nin?o situations,<br/>
a shortened El Nin?o?Southern Oscillation cycle because of global warming likely<br/>
enhances the acid deposition at our study forest.
Literature type specific fields:
ARTICLE
Journal:
Global Biogeochemical Cycles
Volume:
22
Page Range:
GB4011
Publisher:
American Geophysical Union (AGU)
Metadata Provider:
Individual:
Wolfgang Wilcke
Contact:
email:
wolfgang.wilcke <at> kit.edu
Karlsruhe Institute of Technology
Institute of Geography and Geoecology
Reinhard-Baumeister-Platz 1
76131 Karlsruhe
Baden-Württemberg
Germany
