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Título

Hydro-Physical Behavior of Gypseous Soils Under Different Soil Management in a Semiarid Region of NE Spain

AutorMoret-Fernández, David CSIC ORCID ; Castañeda del Álamo, Carmen CSIC ORCID ; Pueyo, Yolanda CSIC ORCID ; Bueno, C. Guillermo CSIC ORCID; Herrero Isern, Juan CSIC ORCID
Palabras clavegypseous soils
hydraulic conductivity
soil bulk density
soil penetration resistance (SPR)
water retention curve
Fecha de publicaciónene-2013
EditorTaylor & Francis
CitaciónMoret-Fernández D, Castañeda C, Pueyo Y, Bueno CG, Herrero J. Hydro-physical behavior of gypseous soils under different soil management in a semiarid region of NE Spain. Arid Land Research and Management 27 (1): 1-16 (2013)
ResumenThe hydro-physical properties of gypseous soils, which are commonly associated with dry climates, determine the productivity of rangelands and croplands. The objective of this paper is to study, in the semiarid central Ebro Basin, NE Spain, some hydro-physical properties of gypseous soils under five different contrasted soil managements: soils of ungrazed (N) and grazed (GR) uncultivated lands, and freshly moldboard tilled (MB), cropped (C), and fallowed (F) agricultural soils. The gypsum content of the studied soils, with concentrations that are natural, ranged from 50 to 92%. The soil bulk density (ρb), saturated sorptivity (S 10), hydraulic conductivity (K 10), and the water retention curve (WRC) of undisturbed soil samples from the 0–10 cm deep soil layer after removing the soil surface crust were calculated. Soil penetration resistance (SPR) for the upper 10 cm soil layer was also measured. Additional measurements of soil surface crust sorptivity (S crust ) and hydraulic conductivity (K crust ) were conducted. Livestock trampling in GR promoted the highest ρ b and SPR values. The lack of soil disturbance in N caused that this treatment showed the lowest values of S crust and K crust , but the highest S 10 and K 10. The specific behavior of gypseous soils, whose loose aggregates easily collapse during the soil wetting process, showed that the MB freshly tilled soil produced the lowest values of S 10 and K 10. A typical bimodal function of the WRC was found. Pore size distribution was affected by the soil treatment, with the highest and lowest values under MB and GR treatments, respectively.
Descripción23 Pags., 4 Tabls., 4 Figs. The definitive version is available at: http://www.tandfonline.com/loi/uasr20
Versión del editorhttp://dx.doi.org/10.1080/15324982.2012.719573
URIhttp://hdl.handle.net/10261/66840
DOI10.1080/15324982.2012.719573
ISSN1532-4982
E-ISSN1532-4990
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