ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEW

Temperate forests in Chile are not yet affected by elevated nitrogen (N) deposition. However, anthropogenic activities such as transport, industry and agriculture have been increasing in central and southern Chile. These activities can substantially alter the atmospheric N load and subsequently N de...

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Autores principales:	Godoy,Roberto, Paulino,Leandro, Oyarzún,Carlos, Boeckx,Pascal
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2003
Materias:	Atmospheric deposition central and southern Chile mineral N organic N
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432003000100008
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spelling	oai:scielo:S0717-664320030001000082004-02-04ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEWGodoy,RobertoPaulino,LeandroOyarzún,CarlosBoeckx,Pascal Atmospheric deposition central and southern Chile mineral N organic N Temperate forests in Chile are not yet affected by elevated nitrogen (N) deposition. However, anthropogenic activities such as transport, industry and agriculture have been increasing in central and southern Chile. These activities can substantially alter the atmospheric N load and subsequently N deposition. Nitrogen deposition data for central and southern Chile are scares and scattered. In order to assess trends of N deposition a good knowledge of past and current N depositions is however essential. This study presents an overview of the existing N deposition data in Chile. In central Chile, dry deposition has been estimated at 0.8 kg NO3--N ha-1 yr-1 and 1.0 kg NH4+-N ha-1 yr-1, giving a total of 1.8 kg N ha-1 yr-1 and wet deposition was 0.4 kg NO3--N ha-1 and 0.6 kg NH4+-N ha-1 yr-1, giving a total of 1.0 kg N ha-1 yr-1. In southern Chile, inorganic N deposition via rainwater are less than 1.0 kg N ha-1 yr-1 in the coast range and < 5.0 kg N ha-1 yr-1 in the Andes. The N input via cloudwater in the coast range was estimated at 1.1 kg NO3--N ha-1 yr-1 and 0.9 kg NH4+-N ha-1 yr-1, versus 1.0 kg NO3--N ha-1 yr-1 and 1.4 kg NH4+-N ha-1 yr-1 the Andean mountains. Organic N input in rainwater can be a substantial N input in temperate forests of southern Chile. Deposition of organic N in Andes has been reported at 8.2 kg N ha-1 yr-1. This values is 11-fold higher than in the coast range (0.7 kg N ha-1 yr-1)info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.60 n.1 20032003-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432003000100008en10.4067/S0717-66432003000100008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Atmospheric deposition central and southern Chile mineral N organic N
spellingShingle	Atmospheric deposition central and southern Chile mineral N organic N Godoy,Roberto Paulino,Leandro Oyarzún,Carlos Boeckx,Pascal ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEW
description	Temperate forests in Chile are not yet affected by elevated nitrogen (N) deposition. However, anthropogenic activities such as transport, industry and agriculture have been increasing in central and southern Chile. These activities can substantially alter the atmospheric N load and subsequently N deposition. Nitrogen deposition data for central and southern Chile are scares and scattered. In order to assess trends of N deposition a good knowledge of past and current N depositions is however essential. This study presents an overview of the existing N deposition data in Chile. In central Chile, dry deposition has been estimated at 0.8 kg NO3--N ha-1 yr-1 and 1.0 kg NH4+-N ha-1 yr-1, giving a total of 1.8 kg N ha-1 yr-1 and wet deposition was 0.4 kg NO3--N ha-1 and 0.6 kg NH4+-N ha-1 yr-1, giving a total of 1.0 kg N ha-1 yr-1. In southern Chile, inorganic N deposition via rainwater are less than 1.0 kg N ha-1 yr-1 in the coast range and < 5.0 kg N ha-1 yr-1 in the Andes. The N input via cloudwater in the coast range was estimated at 1.1 kg NO3--N ha-1 yr-1 and 0.9 kg NH4+-N ha-1 yr-1, versus 1.0 kg NO3--N ha-1 yr-1 and 1.4 kg NH4+-N ha-1 yr-1 the Andean mountains. Organic N input in rainwater can be a substantial N input in temperate forests of southern Chile. Deposition of organic N in Andes has been reported at 8.2 kg N ha-1 yr-1. This values is 11-fold higher than in the coast range (0.7 kg N ha-1 yr-1)
author	Godoy,Roberto Paulino,Leandro Oyarzún,Carlos Boeckx,Pascal
author_facet	Godoy,Roberto Paulino,Leandro Oyarzún,Carlos Boeckx,Pascal
author_sort	Godoy,Roberto
title	ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEW
title_short	ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEW
title_full	ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEW
title_fullStr	ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEW
title_full_unstemmed	ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEW
title_sort	atmospheric n deposition in central and southern chile: an overview
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432003000100008
work_keys_str_mv	AT godoyroberto atmosphericndepositionincentralandsouthernchileanoverview AT paulinoleandro atmosphericndepositionincentralandsouthernchileanoverview AT oyarzuncarlos atmosphericndepositionincentralandsouthernchileanoverview AT boeckxpascal atmosphericndepositionincentralandsouthernchileanoverview
_version_	1718442210803843072

ATMOSPHERIC N DEPOSITION IN CENTRAL AND SOUTHERN CHILE: AN OVERVIEW

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