Mechanization for Optimal Landscape Reclamation

Vondráčková, Terezie; Voštová, Věra; Kraus, Michal

doi:10.1088/1755-1315/95/2/022042

Cited by 4 publications

(2 citation statements)

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“…In particular, A. Shapar [5] investigated the problem of loss and clogging of the humus layer in the process of mining operations as a major technological factor in the formation of technogenic lands quality. Scientists in [6] considered the problem of choosing the rational mechanization techniques as a means to improve the quality of disturbed lands reclamation process and reducing its cost.…”

Section: Literature Reviewmentioning

confidence: 99%

Management of land reclamation quality for agricultural use in opencast mining

Terekhov¹,

Litvinov²,

Fenenko³

et al. 2021

Min. miner. depos.

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Purpose. Theoretical substantiation of principles and development of recommendations for the choice of technological variant to form the quality of lands of technogenic origin, which would ensure rational spending of funds allotted for reclamation and preservation of the reclaimed lands suitability for agricultural use with the highest requirements for agrophysical soil characteristics. Methods. The following methods were used in the process of the research: the method of theoretical generalization and systematization (to determine the characteristics peculiar to the formation of qualitative characteristics of man-made soil using mechanization of reclamation works), analytical (to determine the factors influencing the effectiveness of land reclamation in opencast mining), comparison (to analyze the efficiency of different versions of reclamation works mechanization). Findings. The influence of technical means of reclamation works mechanization on the quality of lands subject to restoration in conditions of opencast mining is analyzed. A methodological approach to the choice of mechanization of land reclamation works in respect to the indicators of the formed quality of technogenic agricultural lands as a factor of their monetary valuation and the level of costs for their reproduction is proposed. Recommendations for quality management of man-made lands by technical support of the process of their consumer properties formation, aimed at achieving a favorable ratio between quality and, accordingly, monetary valuation of man-made lands, on the one hand, and, on the other, – the cost of their reclamation. Originality.A scientific and methodological approach to the choice of technical equipment for reclamation works is proposed, where two factors are considered: reclamation costs and quality of man-made lands, which allows to determine the priority of cost savings or land quality improvement according to the target criterion of reclamation works efficiency. Practical implications. The obtained results are aimed at improving the methodological bases for management of the man-made lands reclamation process based on the choice of its mechanization means. Keywords: land quality, reclamation costs, monetary valuation of lands, reclamation technology, reclamation efficiency

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Section: Literature Reviewmentioning

confidence: 99%

Management of land reclamation quality for agricultural use in opencast mining

Terekhov¹,

Litvinov²,

Fenenko³

et al. 2021

Min. miner. depos.

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“…Це пов'язано з переміщенням і укладкою в певному порядку великих мас гірських порід і знятого перед розробкою гумусового шару ґрунту. Найбільш важкими є роботи, що пов'язані з підвищенням родючості верхнього шару відвалів, покращенням його гідрофізичних властивостей (Kozhevnikov & Zaushintseva, 2015;Legwaila et al, 2015;Vondráčková et al, 2017). Якщо нижчерозташовані шари складаються з особливо токсичних порід, то не виключена можливість міграції розчинів кислот на поверхню відвалу.…”

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Psysical-chemical and biological testing of phytomeliorated rocks of the Pokrov land reclamation station

Kharytonov¹,

Babenko²,

Mytsyk³

et al. 2018

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The physical and chemical properties of the phytomeliorated overburden rocks of the Pokrov land reclamation station of the Nikopol manganese ore deposit and two types of technogenic substrates were studied: loess-like loam, red-brown clay, grey-green clay, dark-grey schist clay and black soils placed on layers of sand and loess-like loam. Samples were taken from each type of technosol at a depth of 10-20 cm (plough layer) and 20-40 cm (sub-plough layer). Identification of the suitability of these technosols for growing crops was carried out by phytotest method. It was revealed that the main clay mineral of dark-grey schist and red-brown clays is the illite. Grey-green clay predominantly consists of montmorillonite, and in loess-like loam and black soil, the content of kaolinite, illite and montmorillonite is more or less the same. The maximal hygroscopicity level was observed in grey-green clay (20.5%). The minimal level was fixed in red-brown clay (7.6%). Phytomeliorated mining rocks are weakly humus; the humus content in them does not exceed 1.25%. Technogenic substrates contain 2.5-3.3% of humus and belong to low-humus soils. All studied technosols belong to slightly alkaline substrates in which the pH varies from 7.34 to 7.86 in the plough layer and from 6.6 to 7.91 in the sub-plough layer. In two of the investigated mining rocks (grey-green and dark-grey schist clays), weak sulfate-chloride salinity was observed. In grey-green clay, the concentration of soluble salts was increased both in plough layer (0.214%) and in the sub-plough layer (0.202%). In the dark-grey schist clay, salinity was observed only in the sub-plough layer, but it was stronger than in the grey-green clay (0.281%). The concentration of chlorides and sulfates in these technosols exceeded the toxicity threshold by 7-8 and 1.5-1.7 times, respectively. The sub-plough layer of dark-grey schist clay and both layers of grey-green clay are phytotoxic. The inhibitory action on the growth and development of plants is caused by the cumulative effect of a soil acid-base imbalance, salinity and low fertility of these technosols. Cultivation of agricultural plants on them is expedient and economically justified only under the condition of carrying out a number of meliorative measures aimed at improving the physical and chemical properties of these substrates.

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