Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de Chile

The overexploitation of the natural resources in the Mediterranean-type climate region of Chile, has resulted in natural forest fragmentation and expansion of Acacia caven (Mol), forming the Espinal ecosystem (EE) that includes two million of hectares in the Central part of Chile. The effect of th...

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Autores principales:	Muñoz,Cristina, Ovalle,Carlos, Zagal,Erick
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Chilena de la Ciencia del Suelo 2007
Materias:	Acacia caven degraded ecosystems soil use intensity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912007000100002
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spelling	oai:scielo:S0718-279120070001000022007-07-31Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de ChileMuñoz,CristinaOvalle,CarlosZagal,Erick Acacia caven degraded ecosystems soil use intensity The overexploitation of the natural resources in the Mediterranean-type climate region of Chile, has resulted in natural forest fragmentation and expansion of Acacia caven (Mol), forming the Espinal ecosystem (EE) that includes two million of hectares in the Central part of Chile. The effect of the anthropogenic intervention over the soil organic carbon (SOC) in these ecosystems is unknown. The aim of this study was to quantify the SOC stocks and it profile distribution in the EE. This was achieved by collecting soils samples according to soil coverage percentage canopy from: well-preserved Espinal (WPE), 51-80 %; good-preserved (GE), 26-50 %; degraded (DE), 11-25 % and very degraded (VDE), 0-10 %. We also included a native forest (NF), 80-98 % of soil coverage to evaluate the pristine condition ecosystem. Soil samples were collected under canopy of A. caven and from intercanopy (1.5 m outside) at four depths (0-5, 5-10, 10-20 and 20-40 cm). SOC was determined by wet oxidation and colorimetric analysis. Native forest had 50 % more SOC content than EE. Soil coverage was directly related to SOC content, having WPE and GE 44 % more SOC stock than DE and VDE. A. caven canopy increased 25 % the C stock in the profile compared to intercanopy. In conclusion, the EE presented an elevated potential for increase SOC stock under canopy, and therefore this represents a potential carbon sink that contribute to atmospheric CO2 reductioninfo:eu-repo/semantics/openAccessSociedad Chilena de la Ciencia del SueloRevista de la ciencia del suelo y nutrición vegetal v.7 n.1 20072007-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912007000100002es10.4067/S0718-27912007000100002
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Acacia caven degraded ecosystems soil use intensity
spellingShingle	Acacia caven degraded ecosystems soil use intensity Muñoz,Cristina Ovalle,Carlos Zagal,Erick Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de Chile
description	The overexploitation of the natural resources in the Mediterranean-type climate region of Chile, has resulted in natural forest fragmentation and expansion of Acacia caven (Mol), forming the Espinal ecosystem (EE) that includes two million of hectares in the Central part of Chile. The effect of the anthropogenic intervention over the soil organic carbon (SOC) in these ecosystems is unknown. The aim of this study was to quantify the SOC stocks and it profile distribution in the EE. This was achieved by collecting soils samples according to soil coverage percentage canopy from: well-preserved Espinal (WPE), 51-80 %; good-preserved (GE), 26-50 %; degraded (DE), 11-25 % and very degraded (VDE), 0-10 %. We also included a native forest (NF), 80-98 % of soil coverage to evaluate the pristine condition ecosystem. Soil samples were collected under canopy of A. caven and from intercanopy (1.5 m outside) at four depths (0-5, 5-10, 10-20 and 20-40 cm). SOC was determined by wet oxidation and colorimetric analysis. Native forest had 50 % more SOC content than EE. Soil coverage was directly related to SOC content, having WPE and GE 44 % more SOC stock than DE and VDE. A. caven canopy increased 25 % the C stock in the profile compared to intercanopy. In conclusion, the EE presented an elevated potential for increase SOC stock under canopy, and therefore this represents a potential carbon sink that contribute to atmospheric CO2 reduction
author	Muñoz,Cristina Ovalle,Carlos Zagal,Erick
author_facet	Muñoz,Cristina Ovalle,Carlos Zagal,Erick
author_sort	Muñoz,Cristina
title	Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de Chile
title_short	Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de Chile
title_full	Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de Chile
title_fullStr	Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de Chile
title_full_unstemmed	Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de Chile
title_sort	distribución del carbono orgánico del suelo almacenado en el perfil de un alfisol en ecosistemas mediterráneos de chile
publisher	Sociedad Chilena de la Ciencia del Suelo
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912007000100002
work_keys_str_mv	AT munozcristina distribuciondelcarbonoorganicodelsueloalmacenadoenelperfildeunalfisolenecosistemasmediterraneosdechile AT ovallecarlos distribuciondelcarbonoorganicodelsueloalmacenadoenelperfildeunalfisolenecosistemasmediterraneosdechile AT zagalerick distribuciondelcarbonoorganicodelsueloalmacenadoenelperfildeunalfisolenecosistemasmediterraneosdechile
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Distribución del carbono orgánico del suelo almacenado en el perfil de un Alfisol en ecosistemas Mediterráneos de Chile

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