Soil microbial processes in a pine silvopastoral system in NW Patagonia

Autores
Gonzalez Polo, Marina; Bahamonde, Héctor Alejandro; Peri, Pablo Luis; Mazzarino, María Julia; Fariña, Clara María; Caballé, Gonzalo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
The conversion of native vegetation to tree plantation (afforestation) implies a drastic change in life forms and as a consequence, changes in the microenvironmental conditions, and the quantity and quality of organic matter entering the soil. This could affect soil microbial communities and the processes catalyzed by them. In Patagonia, afforestation with exotic, fast-growing tree species was a common practice but the consequences on the ecosystem remain poorly quantified. The objective was to study the effects of pine afforestation on litter decomposition, soil organic matter, soil microbial activity and associated biogeochemical functions in a semiarid area of NW Patagonia. We hypothesized that afforestation would decrease litter decomposition rate and soil biological activity including net N mineralization, due to changes of environmental conditions and organic matter quality. We measured in situ and potential soil net N mineralization, soil microbial biomass-C, soil enzyme activities (β- glucosidase, acid phosphatase and leucin-aminopeptidase) and litter decomposition rate. We also characterized soil pH, electrical conductivity, extractable P and total C and N. Pine plantations clearly affected decomposition rates of native grass vegetation, which was 10% lower under pine canopy cover, and decreased soil microbial biomass. Acid phosphatase activity and leucin-aminopeptidase activities were also marginally reduced. On the other hand, we did not find any significant effects of pines on soil chemical properties and N transformations after 13 years of plantation. Because effects depend strongly on time, the decrease of soil microbial biomass, acid phosphatase activity and grass decomposition rate (and the trend to lower enzyme activities related to P and N) under pine cover could be an evidence of possible changes on the long-term.
Fil: Gonzalez Polo, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina.
Fil: Gonzalez Polo, Marina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina.
Fil: Bahamonde, Héctor Alejandro. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental Agropecuaria Rio Gallegos; Argentina.
Fil: Bahamonde, Héctor Alejandro. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental Agropecuaria Rio Gallegos; Argentina.
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Mazzarino, María Julia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina.
Fil: Mazzarino, María Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina.
Fil: Fariña, Clara María. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bariloche; Argentina.
Fil: Caballé, Gonzalo. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bariloche; Argentina.
Fuente
Agroforestry Systems. Vol. 93 (2019)
Materia
Afforestation
Pinus sp.
Net nitrogen mineralization
Soil organic carbon
Descomposition rate
Ciencias Agrarias y Forestales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
Repositorio Digital Institucional (UNCo)
Institución
Universidad Nacional del Comahue
OAI Identificador
oai:rdi.uncoma.edu.ar:uncomaid/17309
Acceder
id RDIUNCO_c717ccedfaa07f5c6fae18bd8f03c969
oai_identifier_str oai:rdi.uncoma.edu.ar:uncomaid/17309
network_acronym_str RDIUNCO
repository_id_str 7108
network_name_str Repositorio Digital Institucional (UNCo)
spelling Soil microbial processes in a pine silvopastoral system in NW PatagoniaGonzalez Polo, MarinaBahamonde, Héctor AlejandroPeri, Pablo LuisMazzarino, María JuliaFariña, Clara MaríaCaballé, GonzaloAfforestationPinus sp.Net nitrogen mineralizationSoil organic carbonDescomposition rateCiencias Agrarias y ForestalesThe conversion of native vegetation to tree plantation (afforestation) implies a drastic change in life forms and as a consequence, changes in the microenvironmental conditions, and the quantity and quality of organic matter entering the soil. This could affect soil microbial communities and the processes catalyzed by them. In Patagonia, afforestation with exotic, fast-growing tree species was a common practice but the consequences on the ecosystem remain poorly quantified. The objective was to study the effects of pine afforestation on litter decomposition, soil organic matter, soil microbial activity and associated biogeochemical functions in a semiarid area of NW Patagonia. We hypothesized that afforestation would decrease litter decomposition rate and soil biological activity including net N mineralization, due to changes of environmental conditions and organic matter quality. We measured in situ and potential soil net N mineralization, soil microbial biomass-C, soil enzyme activities (β- glucosidase, acid phosphatase and leucin-aminopeptidase) and litter decomposition rate. We also characterized soil pH, electrical conductivity, extractable P and total C and N. Pine plantations clearly affected decomposition rates of native grass vegetation, which was 10% lower under pine canopy cover, and decreased soil microbial biomass. Acid phosphatase activity and leucin-aminopeptidase activities were also marginally reduced. On the other hand, we did not find any significant effects of pines on soil chemical properties and N transformations after 13 years of plantation. Because effects depend strongly on time, the decrease of soil microbial biomass, acid phosphatase activity and grass decomposition rate (and the trend to lower enzyme activities related to P and N) under pine cover could be an evidence of possible changes on the long-term.Fil: Gonzalez Polo, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina.Fil: Gonzalez Polo, Marina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina.Fil: Bahamonde, Héctor Alejandro. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental Agropecuaria Rio Gallegos; Argentina.Fil: Bahamonde, Héctor Alejandro. Universidad Nacional de la Patagonia Austral; Argentina.Fil: Peri, Pablo Luis. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental Agropecuaria Rio Gallegos; Argentina.Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.Fil: Mazzarino, María Julia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina.Fil: Mazzarino, María Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina.Fil: Fariña, Clara María. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bariloche; Argentina.Fil: Caballé, Gonzalo. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bariloche; Argentina.Springer2018-02-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfpp. 255–266application/pdf1572-9680http://rdi.uncoma.edu.ar/handle/uncomaid/17309Agroforestry Systems. Vol. 93 (2019)reponame:Repositorio Digital Institucional (UNCo)instname:Universidad Nacional del Comahueenghttps://link.springer.com/article/10.1007/s10457-018-0210-1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/2025-10-16T10:05:42Zoai:rdi.uncoma.edu.ar:uncomaid/17309instacron:UNCoInstitucionalhttp://rdi.uncoma.edu.ar/Universidad públicaNo correspondehttp://rdi.uncoma.edu.ar/oaimirtha.mateo@biblioteca.uncoma.edu.ar; adriana.acuna@biblioteca.uncoma.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:71082025-10-16 10:05:42.78Repositorio Digital Institucional (UNCo) - Universidad Nacional del Comahuefalse
dc.title.none.fl_str_mv Soil microbial processes in a pine silvopastoral system in NW Patagonia
title Soil microbial processes in a pine silvopastoral system in NW Patagonia
spellingShingle Soil microbial processes in a pine silvopastoral system in NW Patagonia
Gonzalez Polo, Marina
Afforestation
Pinus sp.
Net nitrogen mineralization
Soil organic carbon
Descomposition rate
Ciencias Agrarias y Forestales
title_short Soil microbial processes in a pine silvopastoral system in NW Patagonia
title_full Soil microbial processes in a pine silvopastoral system in NW Patagonia
title_fullStr Soil microbial processes in a pine silvopastoral system in NW Patagonia
title_full_unstemmed Soil microbial processes in a pine silvopastoral system in NW Patagonia
title_sort Soil microbial processes in a pine silvopastoral system in NW Patagonia
dc.creator.none.fl_str_mv Gonzalez Polo, Marina
Bahamonde, Héctor Alejandro
Peri, Pablo Luis
Mazzarino, María Julia
Fariña, Clara María
Caballé, Gonzalo
author Gonzalez Polo, Marina
author_facet Gonzalez Polo, Marina
Bahamonde, Héctor Alejandro
Peri, Pablo Luis
Mazzarino, María Julia
Fariña, Clara María
Caballé, Gonzalo
author_role author
author2 Bahamonde, Héctor Alejandro
Peri, Pablo Luis
Mazzarino, María Julia
Fariña, Clara María
Caballé, Gonzalo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Afforestation
Pinus sp.
Net nitrogen mineralization
Soil organic carbon
Descomposition rate
Ciencias Agrarias y Forestales
topic Afforestation
Pinus sp.
Net nitrogen mineralization
Soil organic carbon
Descomposition rate
Ciencias Agrarias y Forestales
dc.description.none.fl_txt_mv The conversion of native vegetation to tree plantation (afforestation) implies a drastic change in life forms and as a consequence, changes in the microenvironmental conditions, and the quantity and quality of organic matter entering the soil. This could affect soil microbial communities and the processes catalyzed by them. In Patagonia, afforestation with exotic, fast-growing tree species was a common practice but the consequences on the ecosystem remain poorly quantified. The objective was to study the effects of pine afforestation on litter decomposition, soil organic matter, soil microbial activity and associated biogeochemical functions in a semiarid area of NW Patagonia. We hypothesized that afforestation would decrease litter decomposition rate and soil biological activity including net N mineralization, due to changes of environmental conditions and organic matter quality. We measured in situ and potential soil net N mineralization, soil microbial biomass-C, soil enzyme activities (β- glucosidase, acid phosphatase and leucin-aminopeptidase) and litter decomposition rate. We also characterized soil pH, electrical conductivity, extractable P and total C and N. Pine plantations clearly affected decomposition rates of native grass vegetation, which was 10% lower under pine canopy cover, and decreased soil microbial biomass. Acid phosphatase activity and leucin-aminopeptidase activities were also marginally reduced. On the other hand, we did not find any significant effects of pines on soil chemical properties and N transformations after 13 years of plantation. Because effects depend strongly on time, the decrease of soil microbial biomass, acid phosphatase activity and grass decomposition rate (and the trend to lower enzyme activities related to P and N) under pine cover could be an evidence of possible changes on the long-term.
Fil: Gonzalez Polo, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina.
Fil: Gonzalez Polo, Marina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina.
Fil: Bahamonde, Héctor Alejandro. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental Agropecuaria Rio Gallegos; Argentina.
Fil: Bahamonde, Héctor Alejandro. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental Agropecuaria Rio Gallegos; Argentina.
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Mazzarino, María Julia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina.
Fil: Mazzarino, María Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina.
Fil: Fariña, Clara María. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bariloche; Argentina.
Fil: Caballé, Gonzalo. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bariloche; Argentina.
description The conversion of native vegetation to tree plantation (afforestation) implies a drastic change in life forms and as a consequence, changes in the microenvironmental conditions, and the quantity and quality of organic matter entering the soil. This could affect soil microbial communities and the processes catalyzed by them. In Patagonia, afforestation with exotic, fast-growing tree species was a common practice but the consequences on the ecosystem remain poorly quantified. The objective was to study the effects of pine afforestation on litter decomposition, soil organic matter, soil microbial activity and associated biogeochemical functions in a semiarid area of NW Patagonia. We hypothesized that afforestation would decrease litter decomposition rate and soil biological activity including net N mineralization, due to changes of environmental conditions and organic matter quality. We measured in situ and potential soil net N mineralization, soil microbial biomass-C, soil enzyme activities (β- glucosidase, acid phosphatase and leucin-aminopeptidase) and litter decomposition rate. We also characterized soil pH, electrical conductivity, extractable P and total C and N. Pine plantations clearly affected decomposition rates of native grass vegetation, which was 10% lower under pine canopy cover, and decreased soil microbial biomass. Acid phosphatase activity and leucin-aminopeptidase activities were also marginally reduced. On the other hand, we did not find any significant effects of pines on soil chemical properties and N transformations after 13 years of plantation. Because effects depend strongly on time, the decrease of soil microbial biomass, acid phosphatase activity and grass decomposition rate (and the trend to lower enzyme activities related to P and N) under pine cover could be an evidence of possible changes on the long-term.
publishDate 2018
dc.date.none.fl_str_mv 2018-02-14
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv 1572-9680
http://rdi.uncoma.edu.ar/handle/uncomaid/17309
identifier_str_mv 1572-9680
url http://rdi.uncoma.edu.ar/handle/uncomaid/17309
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://link.springer.com/article/10.1007/s10457-018-0210-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
pp. 255–266
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Agroforestry Systems. Vol. 93 (2019)
reponame:Repositorio Digital Institucional (UNCo)
instname:Universidad Nacional del Comahue
reponame_str Repositorio Digital Institucional (UNCo)
collection Repositorio Digital Institucional (UNCo)
instname_str Universidad Nacional del Comahue
repository.name.fl_str_mv Repositorio Digital Institucional (UNCo) - Universidad Nacional del Comahue
repository.mail.fl_str_mv mirtha.mateo@biblioteca.uncoma.edu.ar; adriana.acuna@biblioteca.uncoma.edu.ar
_version_ 1846145871925739520
score 13.229304

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