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| Registros recuperados: 66 | |
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| Villagra-Mendoza, Karolina; Carvajal-Vanegas, Dorian; Beck-Broichsitter, Steffen; Horn, Rainer. |
| Biochar is considered as an option to ameliorate soil functions, by improving soil physical and hydraulic soil properties. This study investigated the effect of biochar and of wetting and drying cycles on the water infiltration at laboratory and at a hypothetical watershed scenario. In the laboratory, test samples with 2.5 and 5% (by dry mass) of a mango-wood biochar were added to a sandy and sandy loam soil material. Cumulative infiltration was determined after simulated intense wetting and drying cycles, by drying the samples at 30°C for three consecutive days. Additionally, biochar amended soil hydraulic parameters, obtained at the laboratory, were used to simulate the water discharge of a hypothetical watershed, with the Soil and Water Assessment Tool... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Infiltration; Watershed; Biochar; Surface runoff; Wetting; Drying. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5562 |
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| MARCONCIN,LILIANE R.; MACHADO,ROBERTO D.; LACERDA,LUIZ A. DE; AUFLEGER,MARKUS. |
| ABSTRACT The use of sensors and optical fibers for monitoring structures is continuously growing. Strains, displacements, accelerations, temperatures are just a few of the monitoring possibilities. In the case of dam structures, concrete face rockfill dams constitute a type of structures where the monitoring of water infiltrations is of particular interest. In large structures of this type, opening of slab joints is a common effect of general strain distributions, but crack formation may also occur as a result of high compressive stresses, during and after the reservoir filling stage. In this context, this paper verifies, experimentally, the applicability and the response of a distributed fiber optic monitoring system in the identification of infiltration... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Concrete face rockfill dam; Infiltration; Monitoring structures; Optical fiber. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401865 |
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| Orjuela-Matta,Helber Milton; Rubiano Sanabria,Yolanda; Camacho-Tamayo,Jesus H. |
| Studies that involve soil attributes variability help the analysis of the behavior of hydrophysical attributes in space, to support the decision-making process within the conception of precision agriculture. The aim of the present paper was to characterize the spatial variability of the surface infiltration and its relation to some soil physical attributes. The sampling was done with a rectangular mesh of 64 points with perpendicular distances of 52 m x 45 m between sampling points. The attributes studied were bulk density, contents of sand, silt and clay, soil moisture, cumulative infiltration, basic infiltration, sorptivity, and saturated hydraulic conductivity (Ks). Data were analyzed using descriptive statistics and geostatistics, identifying the... |
| Tipo: Journal article |
Palavras-chave: Geostatistics; Hydraulic conductivity; Infiltration; Sorptivity. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300015 |
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| Mon,Rodolfo; Irurtia,Carlos; Fernando Botta,Guido; Pozzolo,Oscar; Bellora Melcón,Fernando; Rivero,David; Bomben,Miguel. |
| The effects of supplementary irrigation on soil chemical and physical properties were studied in 21 locations in the north of the rolling pampa region of Argentina. The chemical and physical variables were measured in top soil (0-100 mm) to compare irrigated and non-irrigated soils. Chemical variables were: electrical conductivity (EC), pH, exchangeable sodium percentage (ESP), and organic mater content. Physical variables included structural index (SI) and percolation index (PI) measured in the laboratory, as well as infiltration, runoff, and soil losses, measured in the field with a small portable rainfall simulator. Water quality was established according to its chemical composition and Riverside USA classification. In irrigated soils, chemical data... |
| Tipo: Journal article |
Palavras-chave: Erosion risk; Infiltration; Sodication; Supplementary irrigation. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202007000300002 |
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| Registros recuperados: 66 | |
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