Impact of climate, soil properties and grassland cover on soil water repellency

Sándor, Renata; Iovino, Massimo; Lichner, Ľubomír; Alagna, Vincenzo; Forster, Daniel James; Fraser, Malcolm; Kollár, Jozef; Šurda, Peter; Nagy, Viliam; Szabó, Antal; Fodor, Nándor

doi:10.1016/j.geoderma.2020.114780

Cited by 35 publications

(21 citation statements)

References 56 publications

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“…This again indicate that organic mulches have largest impacts on soil conditions, which can be either favorable (e.g., larger Cox content and WSA) or adverse (e.g., lower Sinf and RAW). Interestingly the correlation analyses did not show any relationship between the RI values and parameters that should affect soil water repellency (e.g., Cox content or soil pH) (Sándor et al, 2021;Šurda et al, 2021;Toková et al, 2022).…”

Section: Resultsmentioning

confidence: 97%

How various mulch materials can affect the soil hydro-physical properties

Fér

Nikodem

Trejbalová

et al. 2022

Journal of Hydrology and Hydromechanics

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An application of different mulch materials may lead to changes in soil properties. Our previous study, focused on the impact of various mulches during the 4-year period, showed that the change in some properties can be very rapid (e.g., soil pH), but in other cases such as hydraulic properties, the changes can be gradual. To find out, whether the extension of the mulching period will further affect the studied soil properties, the experiment continued for another 2 years. Differences between values of organic carbon content (Cox), soil physical quality (S inf), gravitational water (GW) and readily available water (RAW) of soils not covered by any mulch and under various mulches (bark chips; wood chips; wheat straw; Agrotex EKO+ decomposable matting; polypropylene fabric covered bark chips; crushed stone) were much larger than those observed in our previous study. On the other hand, the opposite trend was observed for the water stable aggregates (WSA) index or soil pH. Differences between additionally measured hydraulic conductivities at the pressure head of −2 cm and repellency index (RI) were mostly insignificant. Results indicated that organic mulches can either positively (e.g., increase WSA index and Cox, and decrease GW) or negatively (e.g., decrease S inf and RAW, and increase RI) affect soil properties.

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Section: Resultsmentioning

confidence: 97%

How various mulch materials can affect the soil hydro-physical properties

Fér

Nikodem

Trejbalová

et al. 2022

Journal of Hydrology and Hydromechanics

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“…Pressure head was always set at the value of -2 cm according to Watson and Luxmoore (1986) as limit between gravitational and capillary pores. This value of pressure head is also standardly set when the various mini disk infiltrometers are used to evaluate soil water repellency (e.g., Fér et al, 2020;Lichner et al, 2020;Sándor et al, 2021;Sepehrnia et al, 2020). The close contact between the carefully levelled soil surface and disk was ensured by a 1 mm layer of the same soil, sieved through a 2-mm sieve, as proposed by Kodešová et al (2010Kodešová et al ( , 2011.…”

Section: Hydraulic Conductivities Evaluated Using the Mini Disk Tension Infiltrometer Methodsmentioning

confidence: 99%

Variability of topsoil hydraulic conductivity along the hillslope transects delineated in four areas strongly affected by soil erosion

Nikodem

Kodešová

Fér

et al. 2021

Journal of Hydrology and Hydromechanics

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Soil hydraulic conductivities of topsoils were studied at 5 points of the hillslope transects delineated at 4 geomorphologically diverse areas, where the original soil types (Chernozem, Luvisol and two Cambisols) were due to erosion transformed into different soil unites. Hydraulic conductivities of saturated soils and for a pressure head of –2 cm were measured directly in the field using a Guelph permeameter (K s,GP ) and mini disk tension infiltrometer (K h=– 2 ,MDI ), and in the laboratory using a multistep outflow method (K s,MSO , K h= – 2 ,MSO ). While K s,GP ≈ K s,MSO in the Chernozem and Cambisol (sandy loam) regions, and K s,GP < K s,MSO in the Luvisol and Cambisol (loam) regions. The K s values obtained using different methods showed different trends along the hillslope transects. The K h= – 2 values obtained using different methods showed similar trends along the transects in the Chernozem and Luvisol regions. These trends could be explained by the position within the transects (i.e., different stages of erosion/accumulation processes). No relationships were found between the K h=– 2 values in the Cambisol regions. The pressure head at an inflection point of the a soil-water retention curve was the main parameter, which appeared to associate (negative correlation) with K h=– 2 and K s,MSO in the Chernozem and Luvisol regions.

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“…Numerous studies have confirmed the role of SOC in regulating soil hydrophobicity, where SOC content was positively correlate with the level of SWR (Weber et al, 2021;Blaesbjerg et al, 2022). The spatial distribution of soil organic matter found in the soil of grassland led to the significant difference of the severity of SWR (Sándor et al, 2021). However, a contradiction was reported by de Blas et al (2010), where the linear correlation between SOC content and SWR was insignificant, suggesting other soil properties, such as soil texture and soil moisture, may also affect the occurrence and persistence of SWR (Weber et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Organic carbon and silt determining subcritical water repellency and field capacity of soils in arid and semi-arid region

Mao

Zhang

et al. 2022

Front. Environ. Sci.

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Soil water repellency (SWR) is frequently observed in different types of land use and climates. Since SWR potentially enhances the difficulty of water infiltration in soil, the phenomenon can severely impact the water use of plants in arid regions. Therefore, understanding the origin of SWR is crucial in arid and semi-arid regions. This study investigated the fundamental and hydrological properties of soils in three arid ecosystems (desert, farmland, and forest). Analysis was done to determine any potential links between these properties, vegetation cover, and the severity of SWR. It was found that SWR was positively correlated with soil organic carbon (SOC), silt content, and field capacity of soil, where the SWR was in subcritical SWR range. The linear correlation and hierarchical clustering analysis confirmed that the SOC and silt content was the critical factor affecting the occurrence and persistence of SWR. The major source of organic carbon and nutrients to the soil was vegetation, which also had an impact on the distribution of soil carbon. The most striking observation was that the silt content was strongly correlated with both field capacity (r = 0.817, p = 0.001) and SWR (r = 0.710, p = 0.010), which can be attributed to the SOC on silt. In arid and semi-arid regions, the specific surface area of silt was relatively larger than that of sand. Meanwhile, compared to the clay in soil, the proportion of silt was much higher. The results imply that silt could significantly affect the soil hydrological properties and that silt content could serve as a new proxy for predicting water repellency in arid and semi-arid regions.

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Impact of climate, soil properties and grassland cover on soil water repellency

Cited by 35 publications

References 56 publications

How various mulch materials can affect the soil hydro-physical properties

How various mulch materials can affect the soil hydro-physical properties

Variability of topsoil hydraulic conductivity along the hillslope transects delineated in four areas strongly affected by soil erosion

Organic carbon and silt determining subcritical water repellency and field capacity of soils in arid and semi-arid region

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