Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions

7 pages, 1 figure, 5 tables, 37 references. S.

Detalles Bibliográficos
Autores: Melero Sánchez, Sebastiana, López Garrido, Rosa, Murillo Carpio, José Manuel, Moreno Lucas, Félix
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/42489
Acceso en línea:http://hdl.handle.net/10261/42489
Access Level:acceso abierto
Palabra clave:Sustainable agriculture
Tillage
Soil active carbon
Microbial biomass carbon
Enzymatic activities
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spelling Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditionsMelero Sánchez, SebastianaLópez Garrido, RosaMurillo Carpio, José ManuelMoreno Lucas, FélixSustainable agricultureTillageSoil active carbonMicrobial biomass carbonEnzymatic activities7 pages, 1 figure, 5 tables, 37 references. S.Short- and long-term field experiments are necessary to provide important information about how soil carbon sequestration is affected by soil tillage system; such systems can also be useful for developing sustainable crop production systems. In this study, we evaluated the short- and long-term effects of conservation tillage (CT) on soil organic carbon fractions and biological properties in a sandy clay loam soil. Both trials consisted of rainfed crop rotation systems (cereal–sunflower–legumes) located in semi-arid SW Spain. In both trials, results were compared to those obtained using traditional tillage (TT). Soil samples were taken in flowering and after harvesting of a pea crop and collected at three depths (0–5, 5–10 and 10–20 cm). The soil organic carbon fractions were measured by the determination of total organic carbon (TOC), active carbon (AC) and water soluble carbon (WSC). Biological status was evaluated by the measurement of soil microbial biomass carbon (MBC) and enzymatic activities [dehydrogenase activity (DHA), o-diphenol oxidase activity (DphOx), and β-glucosidase activity (β-glu)]. The contents of AC and MBC in the long-term trial and contents of AC in the short-term trial were higher for CT than TT at 0–5 cm depth for both sampling periods. Furthermore, DHA and β-glucosidase values in the July sampling were higher in the topsoil under conservation management in both trials (short- and long-term). The parameters studied tended to decrease as depth increased for both tillage system (TT and CT) and in both trials with the exception of the DphOx values, which tended to be higher at deeper layers. Values of DHA and β-glu presented high correlation coefficients (r from 0.338 to 0.751, p ≤ 0.01) with AC, WSC and TOC values in the long-term trial. However, there was no correlation between either TOC or MBC and the other parameters in the short-term trial. In general, only stratification ratios of AC were higher in CT than in TT in both trials. The results of this study showed that AC content was the most sensitive and reliable indicator for assessing the impact of different soil management on soil quality in the two experiments (short- and long-term). Conservation management in dryland farming systems improved the quality of soil under our conditions, especially at the surface layers, by enhancing its storage of organic matter and its biological properties, mainly to long-term.Authors want to thank to Commisión Interministerial de Ciencia y Tecnología (CICYT) through project (AGL2005-2423), which allowed this work to be carried out. Melero thanks to CSIC for her contract through program “JAE-Doc” and R. López Garrido thanks to Science and Technology Ministry for funding her grant.Peer reviewedElsevierComisión Interministerial de Ciencia y Tecnología, CICYT (España)Ministerio de Ciencia y Tecnología (España)Consejo Superior de Investigaciones Científicas (España)201120112009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/42489reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésdoi:10.1016/j.still.2009.04.001info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/424892026-05-22T06:33:51Z
dc.title.none.fl_str_mv Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions
title Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions
spellingShingle Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions
Melero Sánchez, Sebastiana
Sustainable agriculture
Tillage
Soil active carbon
Microbial biomass carbon
Enzymatic activities
title_short Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions
title_full Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions
title_fullStr Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions
title_full_unstemmed Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions
title_sort Conservation tillage: short and long-term effects on soil carbon fractions and enzymatic activities under dryland Mediterranean conditions
dc.creator.none.fl_str_mv Melero Sánchez, Sebastiana
López Garrido, Rosa
Murillo Carpio, José Manuel
Moreno Lucas, Félix
author Melero Sánchez, Sebastiana
author_facet Melero Sánchez, Sebastiana
López Garrido, Rosa
Murillo Carpio, José Manuel
Moreno Lucas, Félix
author_role author
author2 López Garrido, Rosa
Murillo Carpio, José Manuel
Moreno Lucas, Félix
author2_role author
author
author
dc.contributor.none.fl_str_mv Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
Ministerio de Ciencia y Tecnología (España)
Consejo Superior de Investigaciones Científicas (España)
dc.subject.none.fl_str_mv Sustainable agriculture
Tillage
Soil active carbon
Microbial biomass carbon
Enzymatic activities
topic Sustainable agriculture
Tillage
Soil active carbon
Microbial biomass carbon
Enzymatic activities
description 7 pages, 1 figure, 5 tables, 37 references. S.
publishDate 2009
dc.date.none.fl_str_mv 2009
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/42489
url http://hdl.handle.net/10261/42489
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv doi:10.1016/j.still.2009.04.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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