000147034 001__ 147034
000147034 005__ 20250923084433.0
000147034 0247_ $$2doi$$a10.1016/j.geoderma.2024.117089
000147034 0248_ $$2sideral$$a140890
000147034 037__ $$aART-2024-140890
000147034 041__ $$aeng
000147034 100__ $$aMoret-Fernández, D.
000147034 245__ $$aInfluence of saturated water content on estimating soil hydraulic properties from cumulative disc infiltrometer measurements
000147034 260__ $$c2024
000147034 5060_ $$aAccess copy available to the general public$$fUnrestricted
000147034 5203_ $$aThe soil sorptivity, S, and saturated hydraulic conductivity, Ks, are fundamental soil hydraulic properties that can be estimated from the cumulative infiltration curve measured with a disc infiltrometer. The Haverkamp infiltration model is widely used to estimate S and Ks. This model includes as inputs the constants β and γ and the difference between the initial, θi, and final, θs, volumetric water contents, Δθ. Since Δθ would be expressive of the possible measurement errors, and assuming β, γ, and θi as known values, the first objective of this work is to analyze the influence of θs on the optimization of Ks and S. To this end, a sensitivity analysis, which consists of estimating Ks and S for a range of θs was applied on synthetic infiltration curves simulated for homogeneous columns of sand and loam soil. Then, and working on real soils under different tillage management, we evaluated different procedures to measure θs and analyzed its impact on Ks and S estimation. Four different techniques were compared: the gravimetric-core method and two TDR invasive (3 and 5 cm) and a non-invasive (NiP) probes. All TDR probes were connected to a low-cost NanoVNA. The sensitivity analysis showed that θs, Ks and S can be optimized simultaneously from the inverse analysis of an infiltration curve when β and γ are known values and the infiltration curve is near the steady-state zone. However, due to the intrinsic complexities of real soils and the fact that β and γ are unknown variables, we recommended to optimize Ks and S using measured θs. The NiP sensor connected to a NanoVNA provided a fast, inexpensive, clean, accurate and robust alternative to measure θs at the end of the infiltration experiments.
000147034 536__ $$9info:eu-repo/grantAgreement/EUR/TED2021-132406B-I00
000147034 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000147034 590__ $$a6.6$$b2024
000147034 592__ $$a2.067$$b2024
000147034 591__ $$aSOIL SCIENCE$$b6 / 48 = 0.125$$c2024$$dQ1$$eT1
000147034 593__ $$aSoil Science$$c2024$$dQ1
000147034 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000147034 700__ $$0(orcid)0000-0002-1568-1481$$aLera, F.$$uUniversidad de Zaragoza
000147034 700__ $$aYilmaz, D.
000147034 700__ $$aLassabatere, L.
000147034 700__ $$aJiménez, J.J.
000147034 700__ $$aLatorre, B.
000147034 7102_ $$15008$$2800$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Teoría Señal y Comunicac.
000147034 773__ $$g452 (2024), 117089$$pGeoderma$$tGeoderma$$x0016-7061
000147034 8564_ $$s2081853$$uhttps://zaguan.unizar.es/record/147034/files/texto_completo.pdf$$yVersión publicada
000147034 8564_ $$s2432320$$uhttps://zaguan.unizar.es/record/147034/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000147034 909CO $$ooai:zaguan.unizar.es:147034$$particulos$$pdriver
000147034 951__ $$a2025-09-22-14:45:08
000147034 980__ $$aARTICLE