Show simple item record

resumen

Abstract
The conversion of dry woody rangelands into pastures can alter key soil physical properties that regulate ecosystem water circulation and storage. Based on three paired stands of native woodlands and pastures established 20 years ago in the southern Dry Chaco (San Luis, Argentina), we described contrasts in five soil physical properties using a systematic sampling of soil patches (9 − 18 patches along a single transect within each of the three paired 1-ha [ver mas...]
dc.contributor.authorMagliano, Patricio Nicolás
dc.contributor.authorFernandez, Roberto J.
dc.contributor.authorFlorio, Eva Laura
dc.contributor.authorMurray, Francisco
dc.contributor.authorJobbagy Gampel, Esteban Gabriel
dc.date.accessioned2018-03-23T18:16:30Z
dc.date.available2018-03-23T18:16:30Z
dc.date.issued2017-03
dc.identifier.issn1550-7424
dc.identifier.issn1551-5028
dc.identifier.otherhttps://doi.org/10.1016/j.rama.2016.08.003
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1550742416300719#!
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2113
dc.description.abstractThe conversion of dry woody rangelands into pastures can alter key soil physical properties that regulate ecosystem water circulation and storage. Based on three paired stands of native woodlands and pastures established 20 years ago in the southern Dry Chaco (San Luis, Argentina), we described contrasts in five soil physical properties using a systematic sampling of soil patches (9 − 18 patches along a single transect within each of the three paired 1-ha stands). Compared with woodlands, pastures displayed flatter microtopography (mean ± standard deviation [SD]: 3.7 ± 0.34 vs. 5.0 ± 0.67% slope; P < 0.05), lower infiltration rate (mean ± SD: 71.6 ± 9.0 vs. 139.9 ± 37.2 mm h− 1; P < 0.05), and higher penetration resistance (mean ± SD: 4.2 ± 0.10 vs. 1.9 ± 0.17 kg cm− 2; P < 0.01) and bulk density (mean ± SD: 1.39 ± 0.05 vs. 1.16 ± 0.04 g cm− 3; P < 0.0001). On average, topsoil water content at field capacity was similar for both types of cover (mean ± SD: 16.3 ± 0.21 vs. 17.1 ± 1.12%, pastures and woodlands, respectively; P = 0.29). However, at similar bulk density values, pastures presented a ~ 20% reduction in volumetric water content at field capacity (16.3%) compared with woodlands (19.7%). The establishment of pastures led to more homogenous soils, with most variables having reduced spatial variability in comparison with woodlands. Our observations showed how the conversion of native woodlands to pastures produced strong physical changes in the soils of Dry Chaco and help to understand the mechanisms that are most likely influencing the surface-soil water dynamics of these, and perhaps other, dry rangelands.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceRangeland ecology & management 70 (2) : 225-229. (March 2017)eng
dc.subjectPastizaleses_AR
dc.subjectPastureseng
dc.subjectPropiedades Físico - Químicas Sueloes_AR
dc.subjectSoil Chemicophysical Propertieseng
dc.subjectFormación Boscosaes_AR
dc.subjectWoodlandseng
dc.subjectTierras de Pastoses_AR
dc.subjectRangelandseng
dc.subject.otherChaco Arido, San Luises_AR
dc.titleSoil physical changes after conversion of woodlands to pastures in dry Chaco rangelands (Argentina)eng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEEA San Luises_AR
dc.description.filFil: Magliano, Patricio Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentinaes_AR
dc.description.filFil: Fernandez, Roberto J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentinaes_AR
dc.description.filFil: Florio, Eva L. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentinaes_AR
dc.description.filFil: Murray, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis. Agencia de Extensión Rural San Luis; Argentinaes_AR
dc.description.filFil: Jobbagy Gampel, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentinaes_AR
dc.subtypecientifico


Files in this item

Thumbnail

This item appears in the following Collection(s)

common

Show simple item record