[1] Ondrasek, G., 2013. Water scarcity and water stress in agriculture. In Physiological Mechanisms and Adaptation Strategies in Plants Under Changing Environment: Volume 1 . New York, NY: Springer New York.
[2] Nielsen D.R., Van Genuchten M., & Biggar J.W. 1986. Water flow and solute transport processes in the unsaturated zone. Water Resources Research 22:89S-108S
[3] Szymkiewicz A. 2013 Modelling Water Flow in Unsaturated Porous Media: Accounting for Nonlinear Permeability and Material Heterogeneity. GeoPlanet: Earth and Planetary Sciences 9:1
[4] Celia M.A., Bouloutas E.T., Zarba R.L. 1990. A general mass-conservative numerical solution for the unsaturated flow equation. Water Resources Research 26:1483–1496
[5] Naghdi S., Bozorg-Haddad O., Khorsandi M., Chu X. 2021. Multi-objective optimization for allocation of surface water and groundwater resources. Science of The Total Environment 776:146026
[6] Berlin M., Kumar G.S., Nambi I.M. 2014 Numerical Modeling on the Effect of Dissolved Oxygen on Nitrogen Transformation and Transport in Unsaturated Porous System. Environmental Modeling and Assessment 19:283–299
[7] Gao Y., Shuping Y., Chunmiao Z. 2021. Efficient simulation of groundwater solute transport using the multipoint flux approximation method with arbitrary polygon grids. Journal of Hydrology 601, 126637.
[8] Gao, Yulong, Shengyan Pu, Chunmiao Zheng, and Shuping Yi. An improved method for the calculation of unsaturated–saturated water flow by coupling the FEM and FDM. Scientific Reports 9, no. 1 (2019): 1-9.
[9] Mehl, S., Hill, M.C., 2004. Three-dimensional local grid refinement for block-centered finite-difference groundwater models using iteratively coupled shared nodes: a new method of interpolation and analysis of errors. Advances in Water Resources, 27(9), 899-912.
[10] Di Giammarco, P., Todini, E., Lamberti, P., 1996. A conservative finite elements approach to overland flow: the control volume finite element formulation. Journal of Hydrology. 175 (1-4), 267–291.
[11] Asadi, R., Ataie-Ashtiani, B., Simmons, C.T., 2014. Finite volume coupling strategies for
the solution of a Biot consolidation model. Computers and Geotechnics. 55, 494–505.
[12] Asadi, R., Ataie-Ashtiani, B., 2016. Numerical modeling of subsidence in saturated
porous media: A mass conservative method. Journal of Hydrology. 542, 423–436.
[13] Mategaonkar M. 2022. Numerical modeling of groundwater flow and contaminant transport. Groundwater Contamination in Coastal Aquifers: Assessment and Management 181–189.
[14] Manzini, G., Ferraris, S., 2004. Mass-conservative finite volume methods on 2-D
unstructured grids for the Richards’ equation. Advances in Water Resources. 27 (12),
1199–1215.
[15] Asadi R., Zamani Aliabadi Z. 2023. Comparison of numerical methods for the solution of Richards’ equation in layered porous media. Numerical Methods in Civil Engineering. https://doi.org/10.52547/NMCE.2302.1007
[16] Asadi R., Azizi K. 2023. Numerical modeling of contamination transport equation in porous media for transient flow regime by finite volume method. Modares Civil Engineering journal 23:193–205
[17] Gambolati G., Paniconi C., Putti M. 1993. Numerical Modeling of Contaminant Transport in Groundwater. Migration and Fate of Pollutants in Soils and Subsoils. 381–410
[18] Bedient P.B., Rifai H.S., Newell C.J. 1994. Ground water contamination: transport and remediation. Ground water contamination: transport and remediation.
[19] Berardi M., Difonzo F., Lopez L. 2020. A mixed MoL–TMoL for the numerical solution of the 2D Richards’ equation in layered soils. Computers & Mathematics with Applications 79:1990–2001.
[20] Van Genuchten, M.T., 1980. A closed‐form equation for predicting the hydraulic conductivity of unsaturated soils. Soil science society of America journal, 44(5), 892-898.
[21] Asadi R., Ataie-Ashtiani B. 2015. A comparison of finite volume formulations and coupling strategies for two-phase flow in deforming porous media. Computers and Geotechnics. 67:17–32
[22] Asadi, R., Ataie-Ashtiani, B., 2021. Hybrid finite volume-finite element methods for hydro-mechanical analysis in highly heterogeneous porous media. Computers and Geotechnics, 132, p.103996.
[23] Coudière Y., Vila J.P., Villedieu P. 1999 Convergence rate of a finite volume scheme for a two dimensional convection-diffusion problem. ESAIM: Mathematical Modelling and Numerical Analysis 33:493–516.
[24] Coudière Y., Villedieu P. 2000. Convergence rate of a finite volume scheme for the linear convection-diffusion equation on locally refined meshes. ESAIM: Mathematical Modelling and Numerical Analysis 34:1123–1149.
[25] Praveen Kumar R., Dodagoudar G.R., Rao B.N. 2007. Meshfree modelling of one-dimensional contaminant transport in unsaturated porous media. Geomechanics and Geoengineering 2:129–136
[26] Praveen Kumar R., Dodagoudar G.R. 2010. Meshfree analysis of two‐dimensional contaminant transport through unsaturated porous media using EFGM. International Journal for Numerical Methods in Biomedical Engineering. 26:1797–1816