The influence of soil texture on the course of volume changes of soil

Tall, Andrej; Kandra, Branislav; Gomboš, Milan; Pavelková, Dana

doi:10.17221/217/2017-swr

Cited by 11 publications

(9 citation statements)

References 21 publications

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“…The significance of each is as follows. Soil texture (of which the proportion of silt is a component) is regarded an indicator of the extent of land degradation because soil texture influences soil volume (Tall et al, 2019), resistance to soil erosion, and plant growth (Colazo & Buschiazzo, 2010; Su et al, 2015). BD is probably a crucial indicator of soil porosity and aeration (Juhos et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Soil quality assessment of cropland in China and its relationships with climate and topography

Chen

et al. 2022

Land Degrad Dev

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Assessing soil quality (SQ) of cropland is fundamental for food security and sustainable land management. However, there is limited information regarding SQ assessment on a national scale, which is vital to answer important SQ-related questions in quantitative terms on that scale. Here, the SQ of cropland in China was assessed by constructing a minimum data set (MDS) from 23 soil physicochemical properties based on principal component analysis. The interaction roles and relative contributions of climate and topography on SQ was evaluated by a structural equation model.The MDS comprised eight indicators: proportion of silt, bulk density, total phosphorus, total potassium, available nitrogen, exchangeable calcium, chlorite, and vermiculite. The soil quality index (SQI) varied from 0.245 to 0.705 and showed a clear pattern of decreasing quality from the north to the south of the country. Of the total cropland area in China, the largest share (27.91%) was of soils of high quality, followed by those of moderate quality (24.63%), low quality (20.37%), very high quality (14.18%), and very low quality (12.91%). The north and the south differed significantly in terms of total potassium, exchangeable calcium, chlorite, and vermiculite, which are the four most important indicators of SQ. Climate and elevation explained about 2.2%-30.1% of the variation in SQ on the national and regional scales. These findings suggest that croplands in southern China will benefit from potassium and calcium fertilizers, which will contribute to enhance food security and promote sustainable land management in China.

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Section: Discussionmentioning

confidence: 99%

Soil quality assessment of cropland in China and its relationships with climate and topography

Chen

et al. 2022

Land Degrad Dev

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“…Clayey soils are also recognized for their distinct volume changes in response to moisture. These changes often result in the formation of cracks and vertical movements in natural conditions [54,55].…”

Section: Soils Identification and Samplingmentioning

confidence: 99%

Effect of Humic Amendment on Selected Hydrophysical Properties of Sandy and Clayey Soils

Kandra,

Tall,

Vitková

et al. 2024

Water

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In recent years, products containing humic acids have been increasingly used in agriculture to improve soil parameters. Quantifying their impact on soil quality is, therefore, of key importance. This study seeks to evaluate the impact of the commercial humic acid product (HA) on the hydrophysical parameters of sandy and clayey soils sampled from different sites in Slovakia. Specifically, the study hypothesizes that humic amendment will enhance particle density (ρs), dry bulk density (ρd), porosity (Φ), saturated hydraulic conductivity (Ks), soil water repellency (SWR), and water retention capacity in sandy and clayey soils. The results of the laboratory measurements were analyzed using NCSS statistical software at a statistical significance of p < 0.05. In sandy soil, there was a statistically significant decrease in ρd and Ks and an increase in Φ and a contact angle (CA) after the application of 1 g/100 cm3 HA. At a dose of 6 g/100 cm3 HA, the values of ρs, ρd, and Ks decreased, and the Φ and CA values increased. In clayey soil, the Ks value significantly decreased by −35.5% only after the application of 6 g/100 cm3 HA. The addition of HA increased the full water capacity (FWC) and available water capacity (AWC) of clayey and sandy soils. The positive influence of HA on the studied soil parameters was experimentally confirmed, which can be beneficial, especially for their use in agricultural production.

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“…It is essential to recognize that the levels in the observation boreholes represent the piezometric head, rather than the free GWL [4][5], as confirmed by the comprehensive hydrogeological survey conducted in the area. This survey, indicated that the GWL in the region of interest is confined (under pressure).…”

Section: Defining and Obtaining Input Data For Model Specificationmentioning

confidence: 99%

Innovative groundwater management in industrial park: Optimization and modelling of extraction system

Baroková,

Šoltész,

Červeňanská

et al. 2024

MATEC Web Conf.

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The research presented in this paper focuses on the optimization and modelling of an innovative groundwater extraction system and addresses the challenge of managing the increased groundwater level in Nitra Industrial Park, where the Land Rover Jaguar car manufacturer is located. The primary objective of this research was to determine the optimal pumping rate of the system, ensuring the maintenance of the groundwater level at the required elevation without depleting the surrounding water resources. To achieve this goal, a numerical groundwater modelling approach was utilized, employing the TRIWACO simulation package and the finite element method (FEM). The study involved various simulations under steady and unsteady flow conditions, using hydrological, geological and hydrogeological data, including the results of three proposed pumping tests conducted by INGEO, Ltd. Company, as well as measured groundwater level data from boreholes monitored by the Slovak Hydrometeorological Institute (SHMI). Implementing transient groundwater flow simulations considered the impact of a 1000-year flash flood wave (Q1000). This paper presents results of numerical modelling results, offering insights into maintaining the required groundwater elevation while considering key parameters and uncertainties for design purposes. Additionally, on-site optimization was performed to ensure efficient system operation and minimize associated costs. In conclusion, this research contributes to sustainable groundwater management in the Nitra Industrial Park, addressing the challenge of the increased groundwater level and providing valuable findings to optimize the extraction system’s performance.

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The influence of soil texture on the course of volume changes of soil

Cited by 11 publications

References 21 publications

Soil quality assessment of cropland in China and its relationships with climate and topography

Soil quality assessment of cropland in China and its relationships with climate and topography

Effect of Humic Amendment on Selected Hydrophysical Properties of Sandy and Clayey Soils

Innovative groundwater management in industrial park: Optimization and modelling of extraction system

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