A first record of bulk atmospheric deposition patterns of major ions in southern South America

A first record of bulk atmospheric deposition patterns of major ions in southern South America

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Despite the importance of long-term atmospheric deposition of ions for vegetation productivity and biogeochemistry, southern South America lacks long-term deposition records. We report a 6-year-long record of atmospheric deposition measurements of Mg2?, Ca2?, Na?, K?, Cl-, SO4 2-, NO3 - and NH4 ? in the plains of southern South America, which encompass one of the most important agricultural basins and urban clusters of the continent. After establishing a deposition measurement network across four sites in Argentina and Uruguay, we collected bulk atmospheric deposition monthly form January 2007 through December 2012 in an east–west transect of 700 km. Spatial changes in the sea-salt component of atmospheric deposition were primarily associated with proximity to the sea—as observed in other regions of the world—whereas non-sea-salt components of atmospheric deposition of terrestrial origin were primarily associated with the size of the human population surrounding collection sites. Atmospheric deposition showed a strong interannual variability (CV 50%) mainly associated with variations in the non-sea salt components of terrestrial origin and were within observed values for other relatively unpolluted sites of South America and globally. However, atmospheric deposition appears to be increasing inthe region, particularly for SO4 2- and other ions around Buenos Aires, Argentina, which may represent an early warning of increased air pollution in the area. Average annual regional deposition of sulfate (SO4 2-) was 12.7 kg S hectare-1 and nitrate (NO3 -) was 9.2 kg N hectare-1. Weighted average concentrations of base cations (sum of Mg2?, Ca2?, Na? and K?) was 0.27 mg L-1, and weighted average concentrations of SO4 2-, NO3 - and NH4? were 0.094, 0.018 and 0.046 mg L-1, respectively. Our work highlights the need for long-term networks recording atmospheric deposition in the region, increasing knowledge of nutrient cycling and establishing a baseline for future atmospheric pollution measurements.

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Main Authors: Carnelos, Danilo Alejandro, Portela, Silvina Isabel, Jobbágy, Esteban G., Jackson, Robert B., Di Bella, Carlos Marcelo, Panario, Daniel, Fagúndez Pachón, César, Piñeiro Guerra, Juan Manuel, Grion, L., Piñeiro, Gervasio
Format: Texto biblioteca
Language:eng
Subjects:ATMOSPHERIC DEPOSITION, SOLUBLE ION, REGIONAL PATTERNS, ,
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id KOHA-OAI-AGRO:54500
record_format koha
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language eng
topic ATMOSPHERIC DEPOSITION
SOLUBLE ION
REGIONAL PATTERNS

ATMOSPHERIC DEPOSITION
SOLUBLE ION
REGIONAL PATTERNS
spellingShingle ATMOSPHERIC DEPOSITION
SOLUBLE ION
REGIONAL PATTERNS

ATMOSPHERIC DEPOSITION
SOLUBLE ION
REGIONAL PATTERNS
Carnelos, Danilo Alejandro
Portela, Silvina Isabel
Jobbágy, Esteban G.
Jackson, Robert B.
Di Bella, Carlos Marcelo
Panario, Daniel
Fagúndez Pachón, César
Piñeiro Guerra, Juan Manuel
Grion, L.
Piñeiro, Gervasio
A first record of bulk atmospheric deposition patterns of major ions in southern South America
description Despite the importance of long-term atmospheric deposition of ions for vegetation productivity and biogeochemistry, southern South America lacks long-term deposition records. We report a 6-year-long record of atmospheric deposition measurements of Mg2?, Ca2?, Na?, K?, Cl-, SO4 2-, NO3 - and NH4 ? in the plains of southern South America, which encompass one of the most important agricultural basins and urban clusters of the continent. After establishing a deposition measurement network across four sites in Argentina and Uruguay, we collected bulk atmospheric deposition monthly form January 2007 through December 2012 in an east–west transect of 700 km. Spatial changes in the sea-salt component of atmospheric deposition were primarily associated with proximity to the sea—as observed in other regions of the world—whereas non-sea-salt components of atmospheric deposition of terrestrial origin were primarily associated with the size of the human population surrounding collection sites. Atmospheric deposition showed a strong interannual variability (CV 50%) mainly associated with variations in the non-sea salt components of terrestrial origin and were within observed values for other relatively unpolluted sites of South America and globally. However, atmospheric deposition appears to be increasing inthe region, particularly for SO4 2- and other ions around Buenos Aires, Argentina, which may represent an early warning of increased air pollution in the area. Average annual regional deposition of sulfate (SO4 2-) was 12.7 kg S hectare-1 and nitrate (NO3 -) was 9.2 kg N hectare-1. Weighted average concentrations of base cations (sum of Mg2?, Ca2?, Na? and K?) was 0.27 mg L-1, and weighted average concentrations of SO4 2-, NO3 - and NH4? were 0.094, 0.018 and 0.046 mg L-1, respectively. Our work highlights the need for long-term networks recording atmospheric deposition in the region, increasing knowledge of nutrient cycling and establishing a baseline for future atmospheric pollution measurements.
format Texto
topic_facet
ATMOSPHERIC DEPOSITION
SOLUBLE ION
REGIONAL PATTERNS
author Carnelos, Danilo Alejandro
Portela, Silvina Isabel
Jobbágy, Esteban G.
Jackson, Robert B.
Di Bella, Carlos Marcelo
Panario, Daniel
Fagúndez Pachón, César
Piñeiro Guerra, Juan Manuel
Grion, L.
Piñeiro, Gervasio
author_facet Carnelos, Danilo Alejandro
Portela, Silvina Isabel
Jobbágy, Esteban G.
Jackson, Robert B.
Di Bella, Carlos Marcelo
Panario, Daniel
Fagúndez Pachón, César
Piñeiro Guerra, Juan Manuel
Grion, L.
Piñeiro, Gervasio
author_sort Carnelos, Danilo Alejandro
title A first record of bulk atmospheric deposition patterns of major ions in southern South America
title_short A first record of bulk atmospheric deposition patterns of major ions in southern South America
title_full A first record of bulk atmospheric deposition patterns of major ions in southern South America
title_fullStr A first record of bulk atmospheric deposition patterns of major ions in southern South America
title_full_unstemmed A first record of bulk atmospheric deposition patterns of major ions in southern South America
title_sort first record of bulk atmospheric deposition patterns of major ions in southern south america
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54500
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spelling KOHA-OAI-AGRO:545002023-08-11T14:41:19Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54500http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGA first record of bulk atmospheric deposition patterns of major ions in southern South AmericaCarnelos, Danilo AlejandroPortela, Silvina IsabelJobbágy, Esteban G.Jackson, Robert B.Di Bella, Carlos MarceloPanario, DanielFagúndez Pachón, CésarPiñeiro Guerra, Juan ManuelGrion, L.Piñeiro, Gervasiotextengapplication/pdfDespite the importance of long-term atmospheric deposition of ions for vegetation productivity and biogeochemistry, southern South America lacks long-term deposition records. We report a 6-year-long record of atmospheric deposition measurements of Mg2?, Ca2?, Na?, K?, Cl-, SO4 2-, NO3 - and NH4 ? in the plains of southern South America, which encompass one of the most important agricultural basins and urban clusters of the continent. After establishing a deposition measurement network across four sites in Argentina and Uruguay, we collected bulk atmospheric deposition monthly form January 2007 through December 2012 in an east–west transect of 700 km. Spatial changes in the sea-salt component of atmospheric deposition were primarily associated with proximity to the sea—as observed in other regions of the world—whereas non-sea-salt components of atmospheric deposition of terrestrial origin were primarily associated with the size of the human population surrounding collection sites. Atmospheric deposition showed a strong interannual variability (CV 50%) mainly associated with variations in the non-sea salt components of terrestrial origin and were within observed values for other relatively unpolluted sites of South America and globally. However, atmospheric deposition appears to be increasing inthe region, particularly for SO4 2- and other ions around Buenos Aires, Argentina, which may represent an early warning of increased air pollution in the area. Average annual regional deposition of sulfate (SO4 2-) was 12.7 kg S hectare-1 and nitrate (NO3 -) was 9.2 kg N hectare-1. Weighted average concentrations of base cations (sum of Mg2?, Ca2?, Na? and K?) was 0.27 mg L-1, and weighted average concentrations of SO4 2-, NO3 - and NH4? were 0.094, 0.018 and 0.046 mg L-1, respectively. Our work highlights the need for long-term networks recording atmospheric deposition in the region, increasing knowledge of nutrient cycling and establishing a baseline for future atmospheric pollution measurements.Despite the importance of long-term atmospheric deposition of ions for vegetation productivity and biogeochemistry, southern South America lacks long-term deposition records. We report a 6-year-long record of atmospheric deposition measurements of Mg2?, Ca2?, Na?, K?, Cl-, SO4 2-, NO3 - and NH4 ? in the plains of southern South America, which encompass one of the most important agricultural basins and urban clusters of the continent. After establishing a deposition measurement network across four sites in Argentina and Uruguay, we collected bulk atmospheric deposition monthly form January 2007 through December 2012 in an east–west transect of 700 km. Spatial changes in the sea-salt component of atmospheric deposition were primarily associated with proximity to the sea—as observed in other regions of the world—whereas non-sea-salt components of atmospheric deposition of terrestrial origin were primarily associated with the size of the human population surrounding collection sites. Atmospheric deposition showed a strong interannual variability (CV 50%) mainly associated with variations in the non-sea salt components of terrestrial origin and were within observed values for other relatively unpolluted sites of South America and globally. However, atmospheric deposition appears to be increasing inthe region, particularly for SO4 2- and other ions around Buenos Aires, Argentina, which may represent an early warning of increased air pollution in the area. Average annual regional deposition of sulfate (SO4 2-) was 12.7 kg S hectare-1 and nitrate (NO3 -) was 9.2 kg N hectare-1. Weighted average concentrations of base cations (sum of Mg2?, Ca2?, Na? and K?) was 0.27 mg L-1, and weighted average concentrations of SO4 2-, NO3 - and NH4? were 0.094, 0.018 and 0.046 mg L-1, respectively. Our work highlights the need for long-term networks recording atmospheric deposition in the region, increasing knowledge of nutrient cycling and establishing a baseline for future atmospheric pollution measurements.ATMOSPHERIC DEPOSITIONSOLUBLE IONREGIONAL PATTERNSBiogeochemistry

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