Heterogeneity of water flow in grassland soil during irrigation experiment

Lichner, Ľubomír; Dušek, Jaromír; Tesař, Miroslav; Czachor, Henryk; Meszaros, I.

doi:10.2478/s11756-014-0467-4

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…The soil water content measured during this study is different from the soil water content measured after application of 50 mm of water at the three sites with uncultivated sandy soil covered with vegetation representing different stages of primary succession in Sekule, in the Borská nížina lowland of southwestern Slovakia (Šurda et al, 2015), at the two sites with non-tilled sandy loam soil covered with grassland in Zábrod (in mountainous area of the Šumava, Czech Republic) after an application of 62 and 112 mm of water (Lichner et al, 2014), and at the site with cultivated clay loam soil sown with spring barley in Most pri Bratislave (in the Danubian lowland in southwestern Slovakia) after an application of 100 mm of water (Lichner et al, 2013), where the increase in soil water content was registered up to the depth of 60-90 cm.…”

Section: Resultsmentioning

confidence: 80%

Impact of soil compaction on water content in sandy loam soil under sunflower

Nagy

Šurda

Lichner

et al. 2018

Journal of Hydrology and Hydromechanics

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Soil compaction causes important physical modifications at the subsurface soil, especially from 10 to 30 cm depths. Compaction leads to a decrease in infiltration rates, in saturated hydraulic conductivity, and in porosity, as well as causes an increase in soil bulk density. However, compaction is considered to be a frequent negative consequence of applied agricultural management practices in Slovakia. Detailed determination of soil compaction and the investigation of a compaction impact on water content, water penetration depth and potential change in water storage in sandy loam soil under sunflower (Helianthus annuus L.) was carried out at 3 plots (K1, K2 and K3) within an experimental site (field) K near Kalinkovo village (southwest Slovakia). Plot K1 was situated on the edge of the field, where heavy agricultural equipment was turning. Plot K2 represented the ridge (the crop row), and plot K3 the furrow (the inter–row area of the field). Soil penetration resistance and bulk density of undisturbed soil samples was determined together with the infiltration experiments taken at all defined plots. The vertical bulk density distribution was similar to the vertical soil penetration resistance distribution, i.e., the highest values of bulk density and soil penetration resistance were estimated at the plot K1 in 15–20 cm depths, and the lowest values at the plot K2. Application of 50 mm of water resulted in the penetration depth of 30 cm only at all 3 plots. Soil water storage measured at the plot K2 (in the ridge) was higher than the soil water storage measured at the plot K3 (in the furrow), and 4.2 times higher than the soil water storage measured at the most compacted plot K1 on the edge of the field. Results of the experiments indicate the sequence in the thickness of compacted soil layers at studied plots in order (from the least to highest compacted ones): K2–K3–K1.

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Section: Resultsmentioning

confidence: 80%

Impact of soil compaction on water content in sandy loam soil under sunflower

Nagy

Šurda

Lichner

et al. 2018

Journal of Hydrology and Hydromechanics

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“…The change in soil hydrophysical parameters resulted in preferential flow in the forest soil, emerging during a simulated heavy rain following a long hot, dry period. Lichner et al (2014) evaluated the heterogeneity of water flow in sandy loam soil covered by grass during controlled field irrigation experiment performed at two parallel plots with different irrigation intensities. Effective cross section and degree of preferential flow parameters were used to evaluate flow regime during the experiment.…”

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Biohydrology research after Landau 2013 conference

Lichner

Cerdà

Tesař

et al. 2014

Journal of Hydrology and Hydromechanics

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Biohydrology gives a new view on hydrological research. The impact of biota on hydrological processes was a disregarded topic in the early years of hydrology research. It has been present since the 1960s, but as a "Cinderella" research topic. It emerged as a new aspect of the hydrological processes after the 1980s. In the 21st century, it has become a well established research topic, bringing new knowledge to aid understanding on how biota influence the hydrological cycle and the rates of hydrological processes. The importance of biohydrology research is growing, and the number of conferences, publications and research projects is being doubled every decade.The 4th Biohydrology conference, held in Landau on 21-24 May 2013, addressed many contemporary issues surrounding water scarcity, climate change and increased pressure on land. Under the motto "Bio Meets Hydrology", it has brought together ideas and conceptions of environmental specialists from biological, chemical and physical sciences with the hydrological sciences to discuss and to merge methods and conceptions. The conference focussed on the interaction between biological and hydrological systems, including positive impacts such as water harnessing and flood mitigation, and negative aspects including threats to food production, water repellency and environmental degradation through unsustainable land use practices. In this forum, designed to get different disciplines working together, experts from hydrology, ecology, soil science, biology, geography, forestry and engineering met, and acquired new ideas for their research. Results of the most recent and advanced biohydrology research published in Special sections on biohydrology in Biologia 2013 and 2014, as well as in the Journal of Hydrology and Hydromechanics, are presented in this preface to the Thematic issue on biohydrology.The impact of vegetation cover on soil hydrological processes was the most frequent theme studied. In the first of 6 papers dealing with the biological soil crust (BSC), Cantón et al. (this issue) evaluated the dynamics of organic carbon (OC) losses by water erosion as affected by BSC. Runoff and erosion rates, dissolved organic carbon (DOC) and organic carbon bonded to sediments (S d OC) were measured during the simulated rain. The results showed different S d OC and DOC for the different BSCs and also that the presence of BSCs substantially decreased total organic carbon (TOC) compared to physical soil crusts. Within BSCs, TOC losses decreased as BSCs developed, and erosion rates were lower. Crust removal caused a strong increase in water erosion and TOC losses. Drahorad et al. (2013) estimated the changes in surface structure and wettability during BSC development on Arenosols. They found an increase in water repellency and a decrease in water sorptivity and conductivity with ongoing BSC succession. Penetration resistance data showed very stable thin surface protection by cyanobacteria in early successional BSC that is non-repellent. Later successional stages (lichen and mosses...

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