Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effects

To explore the forest harvest effects on biologically active fractions of soil organic matter dynamics, we evaluated soil total carbon (C-total) and soil microbial biomass carbon (SMBC) concentrations, and basal soil respiration (BSR) in old-growth forest (as control) and logged stands (logged one-...

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Autores principales:	Saynes,Vinisa, Etchevers,Jorge D, Galicia,Leopoldo, Hidalgo,Claudia, Campo,Julio
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2012
Materias:	basal soil respiration labile soil organic matter microbial biomass sustainable forest management
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002012000100001
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spelling	oai:scielo:S0717-920020120001000012012-05-11Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effectsSaynes,VinisaEtchevers,Jorge DGalicia,LeopoldoHidalgo,ClaudiaCampo,Julio basal soil respiration labile soil organic matter microbial biomass sustainable forest management To explore the forest harvest effects on biologically active fractions of soil organic matter dynamics, we evaluated soil total carbon (C-total) and soil microbial biomass carbon (SMBC) concentrations, and basal soil respiration (BSR) in old-growth forest (as control) and logged stands (logged one- and 20-yrs ago) in two regions (dry and wet regions) in temperate forests of Oaxaca, Mexico. Mean C-total values were higher in the Dry region than in the Wet region. Greater mean annual precipitation resulted in consistently lower BSR, but had inconsistent effects on the SMBC in dependence upon annual rainfall in the sampling year. In the dry region SMBC was higher in the dry season than in the rainy season, and BSR was higher in soils collected in the rainy season than those collected in the dry season. Forest logging consistently decreased C-total and SMBC concentrations and BSR. In contrast, rainfall seasonality in the Wet region did not affect SMBC concentration or BSR. On the other hand, in this region, the main response to the forest thinning application was an increase in the concentration of C-total. Overall, we conclude that the soil carbon pools and the effects of forest thinning on the biologically active fractions of soil organic matter will vary, depending on the details of the site's annual rainfall amount.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.33 n.1 20122012-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002012000100001en10.4067/S0717-92002012000100001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	basal soil respiration labile soil organic matter microbial biomass sustainable forest management
spellingShingle	basal soil respiration labile soil organic matter microbial biomass sustainable forest management Saynes,Vinisa Etchevers,Jorge D Galicia,Leopoldo Hidalgo,Claudia Campo,Julio Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effects
description	To explore the forest harvest effects on biologically active fractions of soil organic matter dynamics, we evaluated soil total carbon (C-total) and soil microbial biomass carbon (SMBC) concentrations, and basal soil respiration (BSR) in old-growth forest (as control) and logged stands (logged one- and 20-yrs ago) in two regions (dry and wet regions) in temperate forests of Oaxaca, Mexico. Mean C-total values were higher in the Dry region than in the Wet region. Greater mean annual precipitation resulted in consistently lower BSR, but had inconsistent effects on the SMBC in dependence upon annual rainfall in the sampling year. In the dry region SMBC was higher in the dry season than in the rainy season, and BSR was higher in soils collected in the rainy season than those collected in the dry season. Forest logging consistently decreased C-total and SMBC concentrations and BSR. In contrast, rainfall seasonality in the Wet region did not affect SMBC concentration or BSR. On the other hand, in this region, the main response to the forest thinning application was an increase in the concentration of C-total. Overall, we conclude that the soil carbon pools and the effects of forest thinning on the biologically active fractions of soil organic matter will vary, depending on the details of the site's annual rainfall amount.
author	Saynes,Vinisa Etchevers,Jorge D Galicia,Leopoldo Hidalgo,Claudia Campo,Julio
author_facet	Saynes,Vinisa Etchevers,Jorge D Galicia,Leopoldo Hidalgo,Claudia Campo,Julio
author_sort	Saynes,Vinisa
title	Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effects
title_short	Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effects
title_full	Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effects
title_fullStr	Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effects
title_full_unstemmed	Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effects
title_sort	soil carbon dynamics in high-elevation temperate forests of oaxaca (mexico): thinning and rainfall effects
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002012000100001
work_keys_str_mv	AT saynesvinisa soilcarbondynamicsinhighelevationtemperateforestsofoaxacamexicothinningandrainfalleffects AT etcheversjorged soilcarbondynamicsinhighelevationtemperateforestsofoaxacamexicothinningandrainfalleffects AT galicialeopoldo soilcarbondynamicsinhighelevationtemperateforestsofoaxacamexicothinningandrainfalleffects AT hidalgoclaudia soilcarbondynamicsinhighelevationtemperateforestsofoaxacamexicothinningandrainfalleffects AT campojulio soilcarbondynamicsinhighelevationtemperateforestsofoaxacamexicothinningandrainfalleffects
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Soil carbon dynamics in high-elevation temperate forests of Oaxaca (Mexico): thinning and rainfall effects

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