The porosity determination of dispersion medium by the method of expansion of pore air into vacuum (on the example of the main soil types in the Chuvash republic)

Alekseev, V. V.; Vasiliev, S. A.; Ivanov, M Y

doi:10.1088/1757-899x/387/1/012001

Cited by 2 publications

(2 citation statements)

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“…Water stream deflection from the longitudinal axis of the studied surface. The analysis of the obtained dependence (1) shows that when the water rate changes by an average 1%, the deflection angle of the water direction will increase by an average 4.24%, and increasing the water rate by 1%, the deflection angle of the water direction will increase by an average 32%. The experiments show that the values of the hydraulic roughness coefficient vary along the slope, i.e.…”

Section: Resultsmentioning

confidence: 98%

“…Erosion greatly affects the reduction of both soil fertility and crop yield, and the structure of the soil continuum becomes worse as well. In cultivating crops on slopes cut by erosion scars and ravines the implementation of the technological process goes wrong that reduces the stability of anti-erosion machine running and its performance thus, resulting in quick wear of the machine [1,2,3]. Besides, both paved and farm roads are destroyed.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of Watercourse Direction on Underlying Surface of Slope Lands

Vasilyev¹

2019

Proceedings of the 7th Scientific Conference on Information Technologies for Intelligent Decision Making Support (ITIDS 2019)

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The author of the article considers that the water flow direction changes depending on the rate of the flow moving on the studied surface. The technology for simulating a watercourse direction on the underlying surface using the source method was developed. According to the results of the processed data the Cobb-Douglas-type nonlinear multiplicative function with the highest determination coefficient of 0,721 appeared to be the most accurate one for describing the erosion process. The analysis of the dependence obtained shows that with the water flow rate change by an average 1 %, the deflection angle of the water flow direction increases by an average 4,24% and the deflection angle of the water flow increases by an average 1,32% with the water rate increase by 1%.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Simulation of Watercourse Direction on Underlying Surface of Slope Lands

Vasilyev¹

2019

Proceedings of the 7th Scientific Conference on Information Technologies for Intelligent Decision Making Support (ITIDS 2019)

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Simulation of agricultural landscape catenas based on the analysis of hydrodynamic characteristics of the underlying surfaces of slope lands

Vasiliev

2020

IOP Conf. Ser.: Earth Environ. Sci.

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The agricultural landscape of slope lands is characterized by ecological instability and to ensure its equilibrium state a system of agronomic, melioration and environmental measures is carried out. Assessing the state of slope agricultural landscapes, it is necessary to take into account slope parameters, contour sizes, hydrological regime, types and varieties of soils, erosion processes, economic conditions, location, etc. Monitoring the above parameters will allow to detect hidden impacts or changes and restore the stability of the agricultural ecosystem early, for example, to maintain the hydrodynamic characteristics of the underlying surface for a certain period. Comprehensive research including methods of mathematical simulation and analysis carried out on the agricultural landscape catena is most effective. One of the fundamental scientific problems to be solved in this is to study and construct agricultural landscape catenas using the analysis of hydrodynamic characteristics of soil and vegetation cover of slope lands. It has been established that for compensatory melioration measures and engineering melioration systems planned on agricultural landscapes of slope lands, the following water flow rates occur: from 0.022 to 1.5 m/s for phytomelioration measures when slopes are rather steep; from 0.138 m/s for agricultural melioration measures at a slope of 0.08; and for traditional tillage rates exceed the critical ones and reach 0.8 m/s. According to the nomogram for determining the velocity diagram on a particular catchment slope, it is possible to assess and control anti-erosion melioration measures, revealing the actual speed regime of water flow in problem areas, and, therefore, it is possible to prevent erosion processes and preserve soil fertility on meliorated slope lands early.

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The porosity determination of dispersion medium by the method of expansion of pore air into vacuum (on the example of the main soil types in the Chuvash republic)

Cited by 2 publications

References 1 publication

Simulation of Watercourse Direction on Underlying Surface of Slope Lands

Simulation of Watercourse Direction on Underlying Surface of Slope Lands

Simulation of agricultural landscape catenas based on the analysis of hydrodynamic characteristics of the underlying surfaces of slope lands

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