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Ecological Efficiency Evaluation of Water Regulation of Drained Land in Changing Climatic Conditions

Koptyuk Roman, Rokochinskiy Anatoliy, Volk Pavlo, Turcheniuk Vasil, Frolenkova Nadia, Pinchuk Oleg, Tykhenko Ruslan, Openko Ivan

Ecological Engineering & Environmental Technology

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2023

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Vol. 24, iss. 5

210--216

EN

In view of global climate changes, the study of the ecological feasibility of hydromelioration systems and their impact on the natural environment is extremely relevant. Evaluation of the ecological effectiveness of water regulation of drained land for current and forecasted climatic conditions was performed by determining the environmental reliability coefficient, which characterizes the ecological reliability of a reclamation project. The environmental reliability coefficient was determined on the basis of a certain set of physical indicators. The set of physical indicators reflects the extremely complex nature of the formation of water and general natural and ameliorative regimes of reclaimed land as a whole in changing natural, climatic and agro-ameliorative conditions of real objects. Their determining is based on the implementation of a machine experiment based on a complex of predictive and simulation models for water regulation of drained land on a long-term basis. The obtained results showed that ecologically optimal natural, ameliorative and soil regimes of the drained land, subject to compliance with the restrictions 0.5 < kn ≤ 1.0, are ensured by the application of humidifying sluicing. At the same time, the environmental reliability coefficients are 0.59 and 0.58, respectively, for current and forecast climatic conditions, and the level of ecological reliability of applying humidification to drained land is sufficiently high. The carried out evaluation of ecological reliability of water regulation of drained land confirms the need to increase the role of humidification as a component of effective adaptive measures on drained land in modern and forecasted climatic conditions. Humidifying measures have a decisive influence on the ecological effect and the ecological and amelioration state of drained land.

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The variability of natural and climatic conditions in investment projects in the field of nature management

Rokochinskiy Anatoliy, Frolenkova Nadia, Turcheniuk Vasyl, Volk Pavlo, Prykhodko Natalіa, Tykhenko Ruslan, Openko Ivan

Journal of Water and Land Development

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2021

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no. 48

48--54

EN

The article focuses on the actual scientific and practical problem of accounting for the influence of meteorological and climatic factors in the technical and economic calculations in the field of environmental management. It has been proven that the introduction of scientifically sound and effective methods of using meteorological and climatic information in economic calculations significantly reduces the loss caused by weather conditions and improves the implementation of an optimal strategy for agricultural production on reclaimed lands. Such calculations are based on economic and statistical modelling of different variants that accounting for standard hydrometeorological information in the implementation of design, management and economic decisions. This increases the validity and reliability of calculations, as well as their compliance with the actual operating conditions of environmental and economic facilities. Consequently, this attracts increased interest of both public and private investors. Not only under such conditions is a sustainable development of environmental management sectors possible but also the adaptation to global climate change and additional benefits from the efficient economic activity in the new environmental conditions.

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Differentiation in the value of drained land in view of variable conditions of its use

Rokochinskiy Anatoliy, Volk Pavlo, Frolenkova Nadia, Tykhenko Olha, Shalai Sergiy, Tykhenko Ruslan, Openko Ivan

Journal of Water and Land Development

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2021

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no. 51

174--180

EN

The article is devoted to a topical scientific problem in modern conditions – valuation of land in Ukraine. The imperfection of the existing approaches requires further research on the changing conditions of land use and their impact on land pricing. A methodology for determining the market value of reclaimed land based on a differentiated assessment of its productivity through crop yields is proposed, taking into account natural and climatic zones and other conditions of a particular region. The basis of the methodology is the application of long-term forecast and a set of forecast and simulation models, in particular the model of area climatic conditions and the model of water regime and water regulation technologies on reclaimed land. At that the crop yield model as a complex multiplicative type model takes into account all main factors influencing crop yield formation: weather, climatic and soil conditions, cultivation techniques, water regime of reclaimed land, etc. The proposed approaches were tested by the method of large-scale machine experiment using a land plot in the zone of Western Polissya of Ukraine as the example. The obtained results indicate that there is a differentiation in land value, which is a proportional derivative of the yield of cultivated crops depending on the conditions of their cultivation. The variation range of the studied indicators in relative form by the ratio of maximum and minimum values to the weighted average value is for cultivated crops – 393%, and for the above soils – 44.6%. Thus, within one object, the estimated value of land in view of available soils and cultivated crops varies from USD2456∙ha–1 to USD4005 ∙ ha–1, averaging USD3522 ∙ ha–1 .

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Reclamation projects development improvement technology considering optimization of drained lands water regulation based on BIM

Rokochinskiy Anatoliy, Jeznach Jerzy, Volk Pavlo, Turcheniuk Vasily, Frolenkova Nadia, Koptiuk Roman

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

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2019

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Vol. 28, No. 3

432--443

EN

Improvement principles of development reclamation projects technologies considering drained lands water regulation optimization based on BIM were observed. Modern methodological basis and at the same time, universal technical tool that allows to improve the practice of designing complex objects and systems that is successfully used and developed in almost all fields of science, technology and industry is computer aided design building information modelling – BIM. In structural terms BIM is an organizational and technical system consisting of a large number of interrelated and interacting components. The main function of BIM is to carry out object aided design and their components through the use of mathematical models and other automated design procedures and computer technology. So, transition to optimization design methods will help to improve the overall ecological and economic efficiency of drainage reclamation, especially in working out new construction, reconstruction and modernization of irrigation and drainage systems.

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Evaluation of climate changes and their accounting for developing the reclamation measures in western Ukraine

Rokochynskiy Anatoliy, Volk Pavlo, Frolenkova Nadia, Prykhodko Nataliіa, Gerasimov Ievgenii, Pinchuk Oleg

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

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2019

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Vol. 28, No. 1

3--13

EN

In modern conditions, there are cardinal climate changes on the Earth as at the planetary scale, as at the regional level. According to numerous hydrometeorological characteristics and indicators, climatologists specialists concluded that Ukraine also take place significant climatic changes in the last 10–25 years. In complicated natural-technical systems, which include irrigation and drainage systems (IDS) on drained lands, the selection of regime-technological and technical solutions on different levels of the decision including the time, should be based on the appropriate meteorological information for selecting climatologically optimal management strategies for such systems in the long-term and annual periods. The decisive influence on the formation of water and the overall natural reclamation modes of reclaimed land and harvest crops in many cases depends exactly from climate or weather conditions. Thus, it is necessary to have available data about their implementation to the relevant object as for number of previous years retrospective observations and the forecast period of functioning of the object. Therefore, forecasting of weather and climate conditions become an indispensable condition for implementation of assessing the overall effectiveness of IDS operation. To solve this problem we performed large-scale computer experiment for multi-year retrospective and current data observations in the area of Zhytomyr Polissya. Were planned and implemented the following variants of studies - «Base», «Transitional», «Recent», «CCCM», «UKMO». The forecast was done for five years of typical groups of vegetation periods regarding conditions of heat and moisture provision (very wet - 10%, wet - 30%, average - 50%, dry - 70%, very dry - 90%) on such basic meteorological characteristics: air temperature; precipitation; relative air humidity; deficit of air humidity; photosynthetically active radiation (PAR); coefficient of moisture provision (the ratio of precipitation to evapotranspiration). Obtained results of comparative assessment of climatic conditions in Zhytomyr Polissya zone, suggests that for most of the basic meteorological parameters, already there are changes that in the short term may exceed 10% of the critical ecological threshold, which will lead to relevant irreversible changes in the state of the environment in the region.