Soil microbial processes in a pine silvopastoral system in NW Patagonia

Mostrar el registro sencillo del ítem

dc.creator Gonzalez Polo, Marina
dc.creator Bahamonde, Héctor Alejandro
dc.creator Peri, Pablo Luis
dc.creator Mazzarino, María Julia
dc.creator Fariña, Clara María
dc.creator Caballé, Gonzalo
dc.date 2018-02-14
dc.date.accessioned 2023-07-04T14:41:58Z
dc.date.available 2023-07-04T14:41:58Z
dc.identifier.issn 1572-9680 es_ES
dc.identifier.uri http://rdi.uncoma.edu.ar/handle/uncomaid/17309
dc.description.abstract 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. es_ES
dc.format application/pdf es_ES
dc.format.extent pp. 255–266
dc.language eng es_ES
dc.publisher Springer es_ES
dc.relation.uri https://link.springer.com/article/10.1007/s10457-018-0210-1 es_ES
dc.rights Atribución-NoComercial-CompartirIgual 2.5 Argentina es_ES
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ es_ES
dc.source Agroforestry Systems. Vol. 93 (2019) es_ES
dc.subject Afforestation es_ES
dc.subject Pinus sp. es_ES
dc.subject Net nitrogen mineralization es_ES
dc.subject Soil organic carbon es_ES
dc.subject Descomposition rate es_ES
dc.subject.other Ciencias Agrarias y Forestales es_ES
dc.title Soil microbial processes in a pine silvopastoral system in NW Patagonia es_ES
dc.type Articulo es
dc.type article eu
dc.type acceptedVersion eu
dc.description.fil Fil: Gonzalez Polo, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: Gonzalez Polo, Marina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. es_ES
dc.description.fil Fil: Bahamonde, Héctor Alejandro. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental Agropecuaria Rio Gallegos; Argentina. es_ES
dc.description.fil Fil: Bahamonde, Héctor Alejandro. Universidad Nacional de la Patagonia Austral; Argentina. es_ES
dc.description.fil Fil: Peri, Pablo Luis. Instituto Nacional de Tecnologia Agropecuaria. Estación Experimental Agropecuaria Rio Gallegos; Argentina. es_ES
dc.description.fil Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. es_ES
dc.description.fil Fil: Mazzarino, María Julia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. es_ES
dc.description.fil Fil: Mazzarino, María Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: Fariña, Clara María. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bariloche; Argentina. es_ES
dc.description.fil Fil: Caballé, Gonzalo. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Bariloche; Argentina. es_ES
dc.cole Artículos es_ES


Ficheros en el ítem

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem

Atribución-NoComercial-CompartirIgual 2.5 Argentina Excepto si se señala otra cosa, la licencia del ítem se describe como Atribución-NoComercial-CompartirIgual 2.5 Argentina