Artigo Revisado por pares

In situ measurements of soil saturated hydraulic conductivity: Assessment of reliability through rainfall-runoff experiments

2017; Wiley; Volume: 31; Issue: 17 Linguagem: Inglês

10.1002/hyp.11247

ISSN

1099-1085

Autores

Renato Morbidelli, Carla Saltalippi, Alessia Flammini, Marco Cifrodelli, Tommaso Picciafuoco, Corrado Corradini, Rao S. Govindaraju,

Tópico(s)

Groundwater flow and contamination studies

Resumo

Hydrological ProcessesVolume 31, Issue 17 p. 3084-3094 RESEARCH ARTICLE In situ measurements of soil saturated hydraulic conductivity: Assessment of reliability through rainfall–runoff experiments Renato Morbidelli, Corresponding Author Renato Morbidelli renato.morbidelli@unipg.it orcid.org/0000-0001-8388-2149 Department of Civil and Environmental Engineering, University of Perugia, Perugia, Italy Correspondence Renato Morbidelli, Department of Civil and Environmental Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy. Email: renato.morbidelli@unipg.itSearch for more papers by this authorCarla Saltalippi, Carla Saltalippi Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorAlessia Flammini, Alessia Flammini Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorMarco Cifrodelli, Marco Cifrodelli Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorTommaso Picciafuoco, Tommaso Picciafuoco Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorCorrado Corradini, Corrado Corradini Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorRao S. Govindaraju, Rao S. Govindaraju Lyles School of Civil Engineering, Purdue University, West Lafayette, IN, 47907 USASearch for more papers by this author Renato Morbidelli, Corresponding Author Renato Morbidelli renato.morbidelli@unipg.it orcid.org/0000-0001-8388-2149 Department of Civil and Environmental Engineering, University of Perugia, Perugia, Italy Correspondence Renato Morbidelli, Department of Civil and Environmental Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy. Email: renato.morbidelli@unipg.itSearch for more papers by this authorCarla Saltalippi, Carla Saltalippi Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorAlessia Flammini, Alessia Flammini Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorMarco Cifrodelli, Marco Cifrodelli Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorTommaso Picciafuoco, Tommaso Picciafuoco Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorCorrado Corradini, Corrado Corradini Department of Civil and Environmental Engineering, University of Perugia, Perugia, ItalySearch for more papers by this authorRao S. Govindaraju, Rao S. Govindaraju Lyles School of Civil Engineering, Purdue University, West Lafayette, IN, 47907 USASearch for more papers by this author First published: 01 June 2017 https://doi.org/10.1002/hyp.11247Citations: 45Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract The saturated hydraulic conductivity, Ks, is a soil property that has a key role in the partitioning of rainfall into surface runoff and infiltration. The commonly used instruments and methods for in situ measurements of Ks have frequently provided conflicting results. Comparison of Ks estimates obtained by three classical devices—namely, the double ring infiltrometer (DRI), the Guelph version of the constant-head well permeameter (GUELPH-CHP) and the CSIRO version of the tension permeameter (CSIRO-TP) is presented. A distinguishing feature in this study is the use of steady deep flow rates, obtained from controlled rainfall–runoff experiments, as benchmark values of Ks at local and field-plot scales, thereby enabling an assessment of these methods in reliably reproducing repeatable values and in their capability of determining plot-scale variation of Ks. We find that the DRI grossly overestimates Ks, the GUELPH-CHP gives conflicting estimates of Ks with substantial overestimation in laboratory experiments and underestimation at the plot scale, whereas the CSIRO-TP yields average Ks values with significant errors of 24% in the plot scale experiment and 66% in laboratory experiments. Although the DRI would likely yield a better estimate of the nature of variability than the GUELPH-CHP and CSIRO-TP, a separate calibration may be warranted to correct for the overestimation of Ks values. The reasons for such discrepancies within and between the measurement methods are not yet fully understood and serve as motivation for future work to better characterize the uncertainty associated with individual measurements of Ks using these methods and the characterization of field scale variability from multiple local measurements. Citing Literature Volume31, Issue1715 August 2017Pages 3084-3094 RelatedInformation

Referência(s)
Altmetric
PlumX