Occurrence of soil water repellency in arid and humid climates

Jaramillo, Daniel Francisco Jaramillo; Dekker, L.W.; Ritsema, C.J.; Hendrickx, Jan M. H.

doi:10.1016/s0022-1694(00)00187-6

Cited by 138 publications

(93 citation statements)

References 18 publications

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“…Ma'shum et al 1989, Ritsema and Dekker 1996, Dekker and Ritsema 1997, Jaramillo et al 2000, Gerke et al 2001, Guerrero et al 2001, Hallett et al 2001, Buczko et al 2002. During a soil survey of the Slovak soils we found that Eutric Fluvisol (site Demänovská dolina Valley, WDPT = 2000 s in A horizon), Cambic Arenosol (Borská nížina Lowland, WDPT = 145 s and 11 700 s in Aoq and Bvs horizons, respectively), and Histi-Haplic Podzol (Malá Fatra Mts., WDPT = 11 130 s and 672 s in Ot and Bsh horizons, respectively) are susceptible to water repellency (WRB 1994, Dlapa et al 2003.…”

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confidence: 86%

“…Soil water repellency generally increases during dry weather, while it is reduced or completely eliminated after prolonged and/or heavy precipitation . Water repellency is, however, not restricted to seasonal climates as, for example, a very humid conditions are particularly favourable for the production of organic matter and thus of also the organic compounds causing repellency (Jaramillo et al 2000). …”

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confidence: 99%

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Effect of kaolinite and Ca-montmorillonite on the alleviation of soil water repellency

Dlapa¹,

Doerr²,

Lichner³

et al. 2004

Plant Soil Environ.

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The effects of adding 1-3% (weight) kaolinite or Ca-montmorillonite on the we�ability of silica sand, made highly water repellent with stearic acid, was studied during we�ing and prolonged drying phases at 50°C. The persistence of water repellency was estimated with the water drop penetration time (WDPT) test. A�er we�ing water repellency disappeared in all the samples. During the drying phase, water repellency re-appeared in all samples (untreated and clay-treated) as the water content decreased below 1%. Repellency did, however, not reach pre-we�ing levels. The effect of clay additions on water repellency differed strongly between the two clay types. Kaolinite reduced WDPT, while Ca-montmorillonite caused an increase in WDPT in the already highly repellent sand. Potential mechanisms for the alleviation effectiveness of kaolinite are proposed, with key factors being the high adhesion forces between water and clay mineral surfaces, and the ability kaolinite to disperse. In the case of Ca-montmorillonite, its lower affinity for water may lead to a displacement of water molecules at mineral surfaces by amphiphilic organic compounds, which may result in increased repellency. This phenomenon clearly requires further investigation.

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confidence: 86%

mentioning

confidence: 99%

Effect of kaolinite and Ca-montmorillonite on the alleviation of soil water repellency

Dlapa¹,

Doerr²,

Lichner³

et al. 2004

Plant Soil Environ.

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“…Water repellency is considered to be a negative soil property as it increases the risk of environmental degradation and reduces agricultural production (Doerr & Thomas 2000). Hydrophobicity affects soils in various climatic zones throughout the world (Jaramillo et al 2000). Despite the fact that water repellency is affected by organic matter content, there are very few published sources investigating this phenomenon in organic soils (Wallis & Horne 1992;Berglund & Persson 1996;Soko lowska et al 2005).…”

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confidence: 99%

Water repellency of post-boggy soils with a various content of organic matter

2009

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The objective of this study was to estimate the water repellency of post-boggy soils in north-eastern Poland. Potential water repellency was determined based on the water drop penetration time (WDPT) test and the molarity of an ethanol droplet (MED) test. A total of 276 soil samples with a varied organic carbon (OC) content, ranging from trace amounts in sandy subsoils to 44.4% in organic soils, were analyzed. The investigated material represents peat-muck soils (Eutri-Sapric Histsols) and muck-like soils (Arenic Gleysols, Areni-Humic Gleysols, Gleyic Arenosols). The mineral matter of the analyzed soils comprised loose sand. The obtained results indicate that peat soil formations are marked by higher potential water repellency than muck soil formations. The highest WDPT values (16 390 s) were reported in respect of an alder peat sample with 41.9% OC content, collected at a depth of 55-60 cm. In the group of muck soils, a sample with 36.7% OC content, collected at a depth of 15-20 cm, was marked by the highest water repellency (WDPT 10 492 s). The water repellency of the studied soils is dependent on organic matter content, and it is manifested only when organic matter content is higher than 20%. Soils with OC content of up to 12% show low water repellency or are hydrophilic. Organic soil formations (>12% OC) are characterized by a varied degree of water repellency, but WDPT values in excess of 2000 s are reported only in respect of soils containing more than 35% OC. A significant positive correlation between the content of organic matter, organic carbon, total nitrogen and water repellency was observed in the entire studied population (n = 276). A significant positive correlation was also found between WDPT values and the C:N ratio, while a significant negative correlation was reported in respect of pHH 2 O.

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“…Schantz & Piemeisel 1917) and subtropical ( Jamison 1947;Wander 1949) climatic conditions, it has become clear in recent years, that water repellency is more or less a global phenomenon (e.g. DeBano 1981; Wallis & Horne 1992;Jaramillo et al 2000). Incidences for nonmediterranean Europe have been described mainly from the Netherlands, e.g.…”

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Variability of water repellency in sandy forest soils under broadleaves and conifers in north-western Jutland/Denmark

Wahl¹

2008

Soil & Water Res.

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Soil water repellency has important consequences for ecological and hydrological properties of soils and usually retards infiltration capacity and induces preferential flow. This phenomenon has been known to occur on a wide range of sites under a variety of climatic conditions. The objective of this study was to investigate and characterize soil water repellency on forest sites with identical substrate and climatic conditions, differing in tree age and species. In the Vester Torup Klitplantage, an area comprising a conifer dominated forest plantation stocking on sandy deposits in a coastal setting near the Jammer Bay in north-western Jutland/Denmark, four different forest plots were investigated for water repellency effects four times in 2005. To measure soil water repellency, the water drop penetration time test and the critical surface tension test were carried out. Both tests revealed a seasonal variability in water repellency, exhibiting the highest water repellency for the upper 10 cm of the soil during the summer months, whereas the variability between the different plots seems to be less significant. There was no coherence between humus forms, thickness of litter layer and water repellency.

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Occurrence of soil water repellency in arid and humid climates

Cited by 138 publications

References 18 publications

Effect of kaolinite and Ca-montmorillonite on the alleviation of soil water repellency

Effect of kaolinite and Ca-montmorillonite on the alleviation of soil water repellency

Water repellency of post-boggy soils with a various content of organic matter

Variability of water repellency in sandy forest soils under broadleaves and conifers in north-western Jutland/Denmark

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