Upward infiltration-evaporation method to estimate soil hydraulic properties

被引：13

作者：

Pena-Sancho, C. ^{[1
]}

Ghezzehei, T. A. ^{[2
]}

Latorre, B. ^{[1
]}

Gonzalez-Cebollada, C. ^{[3
]}

Moret-Fernandez, D. ^{[1
]}

机构：

[1] CSIC, EEAD, Dept Suelo & Agua, Zaragoza, Spain

[2] Univ Calif Merced, Life & Environm Sci, Merced, CA USA

[3] Univ Zaragoza, Area Mecan Fluidos, Escuela Politecn Super, Huesca, Spain

来源：

HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES | 2017年 / 62卷 / 10期

关键词：

soil hydraulic properties; inverse methods; HYDRUS; DISC INFILTROMETER DATA; PARAMETER-ESTIMATION; UNSATURATED SOILS; WATER-RETENTION; CONDUCTIVITY; INVERSION; OUTFLOW; MODEL; FLOW;

D O I：

10.1080/02626667.2017.1343476

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Determination of saturated hydraulic conductivity, K-s, and the van Genuchten water retention curve theta(h) parameters is crucial in evaluating unsaturated soil water flow. The aim of this work is to present a method to estimate K-s, a and n from numerical analysis of an upward infiltration process at saturation (Cap0), with (Cap0 + h) and without (Cap0) an overpressure step (h) at the end of the wetting phase, followed by an evaporation process (Evap). The HYDRUS model as well as a brute-force search method were used for theoretical loam soil parameter estimation. The uniqueness and the accuracy of solutions from the response surfaces, K-s-n, a-n and K-s-a, were evaluated for different scenarios. Numerical experiments showed that only the Cap0 + Evap and Cap0 + h + Evap scenarios were univocally able to estimate the hydraulic properties. The method gave reliable results in sand, loam and clay-loam soils.

引用

页码：1683 / 1693

页数：11

共 34 条

[11] Hysteresis and Uncertainty in Soil Water-Retention Curve Parameters
Likos, William J.
Lu, Ning
Godt, Jonathan W.
[J]. JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 2014, 140 (04)
[12] Feasibility of Sequential and Coupled Inversion of Time Domain Reflectometry Data to Infer Soil Hydraulic Parameters under Falling Head Infiltration
Mboh, C. M.
Huisman, J. A.
Vereecken, H.
[J]. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2011, 75 (03) : 775 - 786
[13] Estimating Soil Hydraulic Parameters By Using Green and Ampt Infiltration Equation
Mohammadzadeh-Habili, J.
Heidarpour, M.
[J]. JOURNAL OF HYDROLOGIC ENGINEERING, 2011, 16 (10) : 772 - 780
[14] TDR pressure cell for monitoring water content retention and bulk electrical conductivity curves in undisturbed soil samples
Moret-Fernandez, D.
Vicente, J.
Latorre, B.
Lera, F.
Castaneda, C.
Lopez, M. V.
Herrero, J.
[J]. HYDROLOGICAL PROCESSES, 2012, 26 (02) : 246 - 254
[15] Moret-Fernandez D., 2016, HYDROLOGICAL PROCESS
[16] NEW MODEL FOR PREDICTING HYDRAULIC CONDUCTIVITY OF UNSATURATED POROUS-MEDIA
MUALEM, Y
[J]. WATER RESOURCES RESEARCH, 1976, 12 (03) : 513 - 522
[17] Munkholm LJ, 2002, SOIL SCI SOC AM J, V66, P702, DOI 10.2136/sssaj2002.0702
[18] Pardalos P., 2002, Handbook of global optimization, DOI [10.1007/978-1-4757-5362-2, DOI 10.1007/978-1-4757-5362-2]
[19] Rashid N. S. A., 2015, GEODERMA, V241-242, P306, DOI DOI 10.1016/J.GE0DERMA.2014.12.003
[20] Reynolds W. D., 2002, SOIL SCI SOC AM BOOK

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