Fecha/hora: 01/06/2024 14:15:07

Biblioteca(s): | INIA La Estanzuela.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | B - 3
Fecha corriente: | 21/02/2014
Fecha de la última actualización: | 30/10/2019
Autoria: | CARRASCO-LETELIER, L.; EGUREN, G.; CASTIÑEIRA, C.; PARRA, O.; PANARIO, D.
Afiliación: | LEONIDAS CARRASCO-LETELIER, Environmental Sciences Center EULA-CHILE, University of Concepcion, Chile.; GABRIELA EGUREN, Faculty of Sciences, University of Republic, Uruguay.; National Commission of Archeology, Ministery of Education and Culture, Uruguay.; Environmental Sciences Center EULA-CHILE, University of Concepcion, Chile.; Faculty of Sciences, University of Republic, Uruguay.
Título: | Preliminary study of prairies forested with Eucalyptus sp. at the northwestern Uruguayan soils
Año de publicación: | 2004
Fuente/Imprenta: | Environmental Pollution, 2004, v. 127, n. 1, p. 49-55
Idioma: | Inglés

Contenido:

Abstract:
The land cover change of Uruguayan Forestal Plan provoked biogeochemical changes on horizon Au1 of Argiudols; in native prairies which were replaced by monoculture Eucalyptus sp. plantation with 20 year rotations as trees. Five fields forested and six natural prairies were compared. The results not only show a statistical significant soil acidification, diminution of soil organic carbon, increase of aliphaticity degree of humic substances, and increase of affinity and capacity of hydrolytic activity from soil microbial communities for forested sites with Eucalyptus sp. but also, a tendency of podzolization and/or mineralization by this
kind of land cover changes, with a net soil organic lost of 16.6 tons ha1 in the horizon Au1 of soil under Eucalyptus sp. plantation compared with prairie. Besides, these results point out the necessity of correction of the methodology used by assigned Uruguayan commission to assess the national net emission of greenhouse gases, since the mineralization and/or podzolization process detected in forested soil imply a overestimation of soil organic carbon. The biochemical parameters show a statistical significant correlation between the soil organic carbon status and these parameters which were presented as essential for the correct evaluation of Uruguayan soil carbon sink.

Palabras-Clave: | CAMBIO COBERTURA DEL SUELO; CARBON DIOXIDE; EUCALIPTO; EUCALYPTUS SP; LAND COVER CHANGE; SOIL CARBON SINK; SOIL ORGANIC CARBON.
Thesagro: | CARBONO ORGANICO DEL SUELO; DIOXIDO DE CARBONO.
Categoría del tema: | --
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/13683/1/Environmental-Pollution-127-2004-4955.pdf
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (49918-1) - PXI - AP - DD - PP/Environmental Poll/2004 -  -  - DIS