Infiltration of Water into Soil with Cracks

Novák, Viliam; Šimůnek, Jiřı́; Genuchten, Martinus Th. van

doi:10.1061/(asce)0733-9437(2000)126:1(41)

Cited by 95 publications

(45 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Novák et al (2000) attached a FRACTURE module to HYDRUS in which a source term was added to the Richards equation accounting for infiltration from the bottom of the fractures, bypassing matrix bulks. Van Dam (2000), added a crack sub-model to SWAP (van Dam et al, 2008) and Hendriks et al (1999) used a code called FLOCR/AMINO, to study flow and transport phenomenon in shallow and cracked clayey unsaturated-zones in the Netherlands.…”

Section: Development Of Flow and Transport Models In Cracking Claysmentioning

confidence: 99%

Soil–aquifer phenomena affecting groundwater under vertisols: a review

Kurtzman

Baram

Dahan

2016

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Vertisols are cracking clayey soils that (i) usually form in alluvial lowlands where, normally, groundwater pools into aquifers; (ii) have different types of voids (due to cracking), which make flow and transport of water, solutes and gas complex; and (iii) are regarded as fertile soils in many areas. The combination of these characteristics results in the unique soil-aquifer phenomena that are highlighted and summarized in this review. The review is divided into the following four sections: (1) soil cracks as preferential pathways for water and contaminants: in this section lysimeter-to basin-scale observations that show the significance of cracks as preferential-flow paths in vertisols, which bypass matrix blocks in the unsaturated zone, are summarized. Relatively fresh-water recharge and groundwater contamination from these fluxes and their modeling are reviewed; (2) soil cracks as deep evaporators and unsaturated-zone salinity: deep sediment samples under uncultivated vertisols in semiarid regions reveal a dry (immobile), saline matrix, partly due to enhanced evaporation through soil cracks. Observations of this phenomenon are compiled in this section and the mechanism of evapoconcentration due to air flow in the cracks is discussed; (3) impact of cultivation on flushing of the unsaturated zone and aquifer salinization: the third section examines studies reporting that land-use change of vertisols from native land to cropland promotes greater fluxes through the saline unsaturated-zone matrix, eventually flushing salts to the aquifer. Different degrees of salt flushing are assessed as well as aquifer salinization on different scales, and a comparison is made with aquifers under other soils; (4) relatively little nitrate contamination in aquifers under vertisols: in this section we turn the light on observations showing that aquifers under cultivated vertisols are somewhat resistant to groundwater contamination by nitrate (the major agriculturally related groundwater problem). Denitrification is probably the main mechanism supporting this resistance, whereas a certain degree of anion-exchange capacity may have a retarding effect as well.

show abstract

Section: Development Of Flow and Transport Models In Cracking Claysmentioning

confidence: 99%

Soil–aquifer phenomena affecting groundwater under vertisols: a review

Kurtzman

Baram

Dahan

2016

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…The FRACTURE submodel of the HYDRUS-1D (Novák et al, 2000) formally divides infiltration into the soil matrix into two components: vertical infiltration through the soil surface (1D-Richards equation), and lateral infiltration via soil cracks (Green-Ampt approach). Excess water that does not infiltrate the soil surface is routed into soil cracks.…”

Section: Pf Routing Approachesmentioning

confidence: 99%

A review of model applications for structured soils: a) Water flow and tracer transport

Köhne

Šimůnek

2009

Journal of Contaminant Hydrology

292

224

View full text Add to dashboard Cite

“…Soils often exhibit a variety of heterogeneities, such as fractures, cracks, macropores of biotic origin, and interaggregate pores (Novak et al, 2000;Zhang and Li, 2010). Preferential flow due to anisotropy of hydraulic conductivity or due to flow through relic joints may be present in natural soils (Zhang et al, 2000).…”

Section: Infiltration In Heterogeneous Mediamentioning

confidence: 99%

“…Preferential flow due to anisotropy of hydraulic conductivity or due to flow through relic joints may be present in natural soils (Zhang et al, 2000). Ignoring the infiltration of water by way of soil cracks into the soil matrix usually leads to severely underestimated infiltration rates, too high predictions of water accumulating at or near the soil surface, overestimation of surface runoff, and, consequently, unrealistic descriptions of the soil water regime (Novak et al, 2000). If tubular voids or passageways in soil, which are called soil pipes, are blocked or close-ended, localised increases in pore water pressures can be generated, which may be sufficient to trigger landslides (Pierson, 1983).…”

Section: Infiltration In Heterogeneous Mediamentioning

confidence: 99%

Stability analysis of rainfall-induced slope failure: a review

Zhang

et al. 2011

Proceedings of the Institution of Civil Engineers - Geotechnica

263

View full text Add to dashboard Cite

Rainfall is one of the most significant triggering factors for slope failures in many regions around the world.Numerous research studies have been conducted to investigate infiltration of rainwater into a slope, and the effect of water infiltration on slope stability. In this paper, a review of existing research on infiltration analysis and slope stability analysis under rainfall infiltration is presented. Studies on infiltration analysis with conceptual models, analytical analysis and numerical modelling are first reviewed. The typical pore water pressure profiles in the slope are then discussed. Subsequently, recent developments in analyses of slope instabilities under rainfall conditions using the limit equilibrium method and coupled hydro-mechanical modelling are summarised, and major findings on critical hydrological factors related to rainfall-induced landslides are summarised and discussed. Finally, several research topics are suggested for further study.

show abstract

Infiltration of Water into Soil with Cracks

Cited by 95 publications

References 11 publications

Soil–aquifer phenomena affecting groundwater under vertisols: a review

Soil–aquifer phenomena affecting groundwater under vertisols: a review

A review of model applications for structured soils: a) Water flow and tracer transport

Stability analysis of rainfall-induced slope failure: a review

Contact Info

Product

Resources

About