$Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico$
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Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico

The effects of cultivation in hillside (> 30% slope) on soil C and N stocks after forest clearance and subsequent cultivation in new re-growth forest sites not always induce rapid soil organic matter (SOM) loss in subtropical areas. In the present study we evaluated the sensitivity to SOM changes...

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Autores principales:	Matus,Francisco, Hidalgo,Claudia, Monreal,Carlos, Estrada,Isabel, Fuentes,Mariela, Etchevers,Jorge
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2011
Materias:	Soil C and N sand-size SOM saturation Ultrasonic dispersion
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200014
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spelling	oai:scielo:S0718-583920110002000142018-10-01Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in MexicoMatus,FranciscoHidalgo,ClaudiaMonreal,CarlosEstrada,IsabelFuentes,MarielaEtchevers,Jorge Soil C and N sand-size SOM saturation Ultrasonic dispersion The effects of cultivation in hillside (> 30% slope) on soil C and N stocks after forest clearance and subsequent cultivation in new re-growth forest sites not always induce rapid soil organic matter (SOM) loss in subtropical areas. In the present study we evaluated the sensitivity to SOM changes of material floatable in water (Fw), coarse sand (> 250 mm), fine sand (50-250 mm), silt (2-50 mm) and clay (0-2 mm) fractions by the impact of cultivation of Mexican Ferrasols. This research also determined the relative degree of C and N saturation in the silt and clay size particles. The soil physical fractions were obtained after ultrasonic vibration and sedimentation. Soil organic matter stock (0-20 cm depth) in cultivated sites ranged from 54 to 146 Mg C ha-1 and from 3.9 to 7.1 Mg N ha-1 and in the forest soil 46-94 Mg C ha-1 and 3.7-5.1 Mg N ha-1. The relative distribution of C and N was lower in the coarse sand and highest in the silt fraction; the latter paralleled the changes of whole soil C and N. Coarse sand was the most sensitive fraction responding to cultivation, thus representing a diagnostic pool to assess the SOM shifts under cultivation. Half of our studied soil showed a low degree of C and N saturation in the silt and clay fraction indicating potential for accumulation of C and N, while the other half were well above the saturation limit.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.71 n.2 20112011-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200014en10.4067/S0718-58392011000200014
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Soil C and N sand-size SOM saturation Ultrasonic dispersion
spellingShingle	Soil C and N sand-size SOM saturation Ultrasonic dispersion Matus,Francisco Hidalgo,Claudia Monreal,Carlos Estrada,Isabel Fuentes,Mariela Etchevers,Jorge Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico
description	The effects of cultivation in hillside (> 30% slope) on soil C and N stocks after forest clearance and subsequent cultivation in new re-growth forest sites not always induce rapid soil organic matter (SOM) loss in subtropical areas. In the present study we evaluated the sensitivity to SOM changes of material floatable in water (Fw), coarse sand (> 250 mm), fine sand (50-250 mm), silt (2-50 mm) and clay (0-2 mm) fractions by the impact of cultivation of Mexican Ferrasols. This research also determined the relative degree of C and N saturation in the silt and clay size particles. The soil physical fractions were obtained after ultrasonic vibration and sedimentation. Soil organic matter stock (0-20 cm depth) in cultivated sites ranged from 54 to 146 Mg C ha-1 and from 3.9 to 7.1 Mg N ha-1 and in the forest soil 46-94 Mg C ha-1 and 3.7-5.1 Mg N ha-1. The relative distribution of C and N was lower in the coarse sand and highest in the silt fraction; the latter paralleled the changes of whole soil C and N. Coarse sand was the most sensitive fraction responding to cultivation, thus representing a diagnostic pool to assess the SOM shifts under cultivation. Half of our studied soil showed a low degree of C and N saturation in the silt and clay fraction indicating potential for accumulation of C and N, while the other half were well above the saturation limit.
author	Matus,Francisco Hidalgo,Claudia Monreal,Carlos Estrada,Isabel Fuentes,Mariela Etchevers,Jorge
author_facet	Matus,Francisco Hidalgo,Claudia Monreal,Carlos Estrada,Isabel Fuentes,Mariela Etchevers,Jorge
author_sort	Matus,Francisco
title	Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico
title_short	Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico
title_full	Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico
title_fullStr	Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico
title_full_unstemmed	Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico
title_sort	land use impacts on physical-based soil organic matter fractions on three hillside ferrasols in mexico
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200014
work_keys_str_mv	AT matusfrancisco landuseimpactsonphysicalbasedsoilorganicmatterfractionsonthreehillsideferrasolsinmexico AT hidalgoclaudia landuseimpactsonphysicalbasedsoilorganicmatterfractionsonthreehillsideferrasolsinmexico AT monrealcarlos landuseimpactsonphysicalbasedsoilorganicmatterfractionsonthreehillsideferrasolsinmexico AT estradaisabel landuseimpactsonphysicalbasedsoilorganicmatterfractionsonthreehillsideferrasolsinmexico AT fuentesmariela landuseimpactsonphysicalbasedsoilorganicmatterfractionsonthreehillsideferrasolsinmexico AT etcheversjorge landuseimpactsonphysicalbasedsoilorganicmatterfractionsonthreehillsideferrasolsinmexico
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Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico

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