An improved Mualem–Van Genuchten method and its verification using data on Beit Netofa clay

Terleev, Vitaly; Mirschel, Wilfried; Badenko, Vladimir; Guseva, Inna

doi:10.1134/s1064229317040135

Cited by 42 publications

(27 citation statements)

References 21 publications

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“…the meaning of statistics of the lognormal distribution of the capillary soil pore radii. In the papers [11,12] Kosugi's ideas are developed and a system of soil-hydrophysical functions #2 are described. The functions forming this system are represented in the following form: …”

Section: Methodsmentioning

confidence: 99%

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Estimating some hydrophysical properties of soil using mathematical modeling

et al. 2018

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Abstract. At substantiating land amelioration and land management designs, as well as during periods of operation and reconstruction of water facilities, information support plays an important role in relation to the hydrophysical properties of soil. Effective implementation of this support faces a number of challenges. Such problems include the very high laboriousness of carrying out the corresponding engineering surveys and laboratory studies. In this regard, the methods of indirect estimating the hydrophysical properties, the measurement of which requires considerable labor, are very in demand for land amelioration and land management practices. An equally acute problem is the problem of the functional representation of the coefficients of the Richards equation, which is widely used in engineering-hydrological calculations. The paper suggests: 1) the original method for assessment of the ratio of the values of the hydraulic conductivity function of soil to the moisture filtration coefficient using data from direct measurements of the water-retention capacity of soil carried out according to the standard procedure; 2) the mathematical model describing the hydrophysical properties of soil, and the system of functions with interpreted parameters that physically adequately describe the coefficients of the Richards equation. In carrying out the study, data on soils of different texture were used. A sufficiently low error in the dot approximation (fittingprocedure) of the experimental data confirms the physical adequacy of the proposed system that includes the functions describing the coefficients of the Richards equation.

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Section: Methodsmentioning

confidence: 99%

“…In the paper [12] continuous approximations of the relations (4) and (5) in the class of elementary functions are proposed using the simplified Winitzky formula [13]. Here the relations (4) and (5) are respectively transformed to the form: …”

Section: Methodsmentioning

confidence: 99%

Estimating some hydrophysical properties of soil using mathematical modeling

et al. 2018

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“…Therefore, for the location of stationary snow melting plants, it is proposed to choose industrial zones and other areas [18][19][20][21][22] remote from residential buildings and having manhole collector hatches. In addition, the hydprophysical properties of the soils should be considered in case of melted snow disposal to the natural relief [23][24][25][26][27][28][29].…”

Section: Methodsmentioning

confidence: 99%

Zoning of the territory with snow removal using snow melting plants

et al. 2018

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In this paper, the issue of clearing the territory of snow with the use of snow melting units is being considered. The operating principle of the snow-melting stations is based on sewage heat) melting the snow collected in the snow collection chambers. Snow melt water mixed with wastewater is discharged into the collectors and transported to have a full treatment cycle at the wastewater treatment plant. Three problems of urban snow-melting process are considered. The solution of three problems is proposed: compiling a list of signs of mandatory snow removal zones; the allocation of the main zones corresponding to the proposed features; method of determining the amount of snow that is mandatory for export from the territory of the zone.

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“…The balance is calculated taking into account precipitation, water evaporation from soil, transpiration of crops, water transfer within the soil layers, and percolation. Calculation also includes main hydro-physical soil constants such as maximum hydroscopy, field capacity and saturation capacity [32,33]. (5) The module of plant growth and development.…”

Section: Model Agrotoolmentioning

confidence: 99%

Comparative Simulation of Various Agricultural Land Use Practices for Analysis of Impacts on Environments

Badenko

Topaj

et al. 2017

Environments

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Current intensification and changes in agricultural land use practices increase environmental impact that can be reduced by bridging the gap between socio-economic demands and scientific justification of sustainable agricultural land use. This can be achieved by replacing the goal of maximum crop yields with the goal of minimal environmental impact. This paper presents results of integrated crop simulation system development for analysis of alternative planning strategies in agricultural land use, with focus on the crop rotation influence on environmental sustainability. The effective tools used in analysis include (1) long-term analysis of changes in agricultural land using a dynamic crop model with daily time step; (2) justification of arbitrary crop rotation scheme of different agro-technologies and sparing measures; and (3) analysis of modern farming management methods using model-oriented approach. The results of study also include estimation of two alternative practices of crop harvesting including remaining or removing whole crop residues from the agricultural field and their influence on basic parameters of soil fertility. In addition, we analyzed comparative efficiency of different agricultural measures neglecting the negative influence of possible climate changes in long-term consequences. Corresponding efficiency rating is the following: organic fertilizer, green manure legume sparing harvesting, winter catch crop, and rotation scheme.

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An improved Mualem–Van Genuchten method and its verification using data on Beit Netofa clay

Cited by 42 publications

References 21 publications

Estimating some hydrophysical properties of soil using mathematical modeling

Estimating some hydrophysical properties of soil using mathematical modeling

Zoning of the territory with snow removal using snow melting plants

Comparative Simulation of Various Agricultural Land Use Practices for Analysis of Impacts on Environments

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