Autor: Volk, Pavlo - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Formation of a Favorable Filtration Regime of Soils in Saline Areas of the Danube Delta Rice Irrigation Systems
Autorzy:: Turcheniuk, Vasil
Rokochinskiy, Anatoliy
Kuzmych, Lyudmyla
Volk, Pavlo
Prykhodko, Nataliia
Powiązania:: https://bibliotekanauki.pl/articles/31340455.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: water supply
gravity water flow
EPANET analysis
water pipe system design
Opis:: The environmental state of rice irrigation systems (RIS) is determined by many factors, including natural ones (soil, topographical, hydrogeological, and climatic factors) and technological ones (irrigation norm, design, and parameters of irrigation and drainage networks, etc). The most significant influence on the ecological reclamation state of the RIS carries is effected by its drainage network (DN). The need to maintain a flushing water regime with specific filtration rates to prevent secondary salinization in the Danube Delta’s rice systems is a crucial aspect of managing these agricultural areas. In the saline areas of rice systems located in the Danube Delta, the DN must ensure the maintenance of the flushing water regime with the rates of filtration ranging between 10 to 12 mm/day. This is a prerequisite for preventing secondary salinization of irrigated lands of these rice systems. According to the results of studies, the filtration from the surface of the irrigation checks of the Danube Delta RIS has been established, and its values in the area of the rice check vary significantly. Different intensity of filtration in the area of rice checks causes the difference in mineralization of groundwater and in the content of salts in the soil. This leads to the fact that the same rice check created various natural reclamation conditions and different productivity of cultivated crops.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2023, 70, 1; 115-128
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A Technological System for Using Waste Warm Water from Energy Facilities for Effective Agriculture
Autorzy:: Turcheniuk, Vasil
Rokochinskiy, Anatoliy
Kuzmych, Lyudmyla
Volk, Pavlo
Koptyuk, Roman
Powiązania:: https://bibliotekanauki.pl/articles/2097754.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: waste water heat
soil temperature
soil heating
water regime
recycling
cooling
Opis:: The waste warm waters from power plants, owing to their temperature regime (25–38°C) and the volumes of discharge, allow for their use for heating of open ground areas in agriculture. Underground heating by such water is a new, special heat and irrigation method which enables not only purposeful regulation of temperature conditions of the crop growing environment, but also dissipates heat in the soil, thus cooling the water for its reuse. This makes it possible to reduce the thermal pollution of water sources.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2022, 69, 1; 13-25
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Assessment of the energy and overall efficiency of the closed irrigation network of irrigation systems on the basis of the complex of resource-saving measures
Autorzy:: Kovalenko, Pyotr
Rokochynskiy, Anatoliy
Gerasimov, Ievgenii
Volk, Pavlo
Prykhodko, Nataliіa
Tykhenko, Ruslan
Openko, Ivan
Powiązania:: https://bibliotekanauki.pl/articles/2203567.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: assessment
closed irrigation network
closed irrigation system
complex of resource-saving measures
energy efficiency
overall efficiency
Opis:: The presence of water, food and energy crises, both at the global and regional levels, as well as their deterioration under conditions of climate change, with an insufficient level of technical condition of existing irrigation systems, increase the strategic importance of irrigation as the guarantor of the agricultural sector sustainable development. This makes it necessary to increase, foremost, energy and overall (technical, technological, economic, and environmental) efficiency of the closed irrigation network of irrigation systems. In this regard, the complex that includes organisational-technological, technical, and resource-saving groups of measures was developed. Estimation of energy and overall efficiency of the closed irrigation network of irrigation systems at the implementation of developed complex were executed on the example of the agricultural enterprise located in the Petropavlovsk district of the Dnipropetrovsk region of Ukraine. For this purpose, machine experiment based on a use of the set of optimisation, forecasting and simulation models was implemented, including the model of climatic conditions, the model of water regime and water regulation technologies, as well as the model of crop yields on reclaimed lands. According to the obtained results, established that implementation of the complex reduces the consumption of irrigation water by 2.2-30.7% and electricity consumption by 12.9-38.2%. The rate of specific costs decreases from 1.6 to 1.32-1.47, and the coefficient of environmental reliability increases by 5.6-16.7%. At the same time, the profitability index increases from 1.07 to 1.75-2.57, and the discounted payback period decreases from 18 to 8-5 years.
Źródło:: Journal of Water and Land Development; 2022, Special Issue; 15--23
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The efficiency of waste hot water utilisation to improve the temperature conditions for growing plants
Autorzy:: Turcheniuk, Vasil
Rokochinskiy, Anatoliy
Kuzmych, Lyudmyla
Volk, Pavlo
Koptyuk, Roman
Romanyuk, Ivan
Voropay, Galyna
Powiązania:: https://bibliotekanauki.pl/articles/2174361.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: cooling
recycling
soil heating
soil temperature
waste water heat
water regime
Opis:: One of the rational ways of energy saving is to use the heat of wastewater from energy companies for open ground heating and cultivation crops. The most significant sources of heat are thermal and nuclear power plants that produce low-thermal waters of 28-35°C. Heating of the ground with the use of circulating warm water allows to increase temperature at all points of the soil profile. The maximum thermal effect from heating ground is observed at the depth of pipe heaters (7.3- 11.1°C). Ground heating allows to extend the growing season for crops by 3-4 weeks, which can expedite harvesting and thus maximise the harvest. In natural moisture conditions, ground heating does not lead to significant reduction of moisture reserves in the active layer throughout the growing period. There is a redistribution of moisture in a soil profile. It decreases in the zone of pipe heaters and redistributes toward the top. The formation of the nutrient regime changes, the content of mobile phosphorus and potassium, and nitrate nitrogen increases, whereas the content of ammonia nitrogen is reduced. Ground heating is a new special heat reclamation technique. It allows not only to control temperature of the agricultural crop environment, but also to dissipate heat in the ground, and promote the utilisation of waste heat and the stabilisation of the environment.
Źródło:: Journal of Water and Land Development; 2022, 54; 94--100
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Differentiation in the value of drained land in view of variable conditions of its use
Autorzy:: Rokochinskiy, Anatoliy
Volk, Pavlo
Frolenkova, Nadia
Tykhenko, Olha
Shalai, Sergiy
Tykhenko, Ruslan
Openko, Ivan
Powiązania:: https://bibliotekanauki.pl/articles/2048500.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: agricultural land
cost of land
drained land
land resources
monetary valuation of land
soil assessment
rational use of land
Opis:: 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 .
Źródło:: Journal of Water and Land Development; 2021, 51; 174-180
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of ecological and economic efficiency of investment in water management and land reclamation projects
Autorzy:: Kovalenko, Pyotr
Rokochinskiy, Anatoliy
Volk, Pavlo
Turcheniuk, Vasyl
Frolenkova, Nadiia
Tykhenko, Ruslan
Powiązania:: https://bibliotekanauki.pl/articles/1844376.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: ecological and economic efficiency
evaluation
investments
land reclamation
risks
scientific and methodological principles
water management
weather and climatic conditions
Opis:: The article is devoted to the actual scientific and practical problem of improving methodological and methodical approaches to the evaluation of design solutions in the water management and land reclamation industry based on the ecological and economic principles in conditions of uncertainty. The current stage of the development of the water management sector in Ukraine is characterized by a combination of past negligence and the present energy, food and water crises, as well as global climate change. To solve these problems, it is necessary to reform organizational-economic relations in the industry, including new sources and forms of financing for water management and land reclamation projects, introduction of new environmentally advanced technologies, and the improvement of the existing ecological and economic evaluation of investments. Based on scientific and methodological recommendations used for evaluating the effectiveness of investment in various spheres of economic activity, the authors developed and implemented an improved methodology for the evaluation of water management and land reclamation projects. It is based on methodological approaches that cover such elements as the variety of options, changes in the value of money over time, specific project implementation environment, including the impact of weather, climate and environmental factors on project performance, multilevel and gradual evaluation of a project against specific criteria and according to stages of the project cycle. The method was tested during the reconstruction of a rice irrigation system in the steppe zone of about 3000 ha in Ukraine. Economic results, namely the deterministic payback period and investment return index confirm that the proposed mechanism, unlike the traditional one, increases the economic and environmental feasibility of water management and land reclamation projects. Therefore, it stimulates investment in the land reclamation sector.
Źródło:: Journal of Water and Land Development; 2021, 48; 81-87
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The variability of natural and climatic conditions in investment projects in the field of nature management
Autorzy:: Rokochinskiy, Anatoliy
Frolenkova, Nadia
Turcheniuk, Vasyl
Volk, Pavlo
Prykhodko, Natalіa
Tykhenko, Ruslan
Openko, Ivan
Powiązania:: https://bibliotekanauki.pl/articles/1844384.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: agricultural production
environmental management
forecasting and optimization models
investment projects
natural and climatic conditions
water management and land reclamation systems
Opis:: 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.
Źródło:: Journal of Water and Land Development; 2021, 48; 48-54
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Implementation of modern approaches to evaluating the effectiveness of innovation for water treatment in irrigation
Autorzy:: Rokochinskiy, Anatoliy
Bilokon, Vyacheslav
Frolenkova, Nadiia
Prykhodko, Nataliіa
Volk, Pavlo
Tykhenko, Ruslan
Openko, Ivan
Powiązania:: https://bibliotekanauki.pl/articles/293056.pdf
Data publikacji:: 2020
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: economic efficiency
evaluation
investments
modern methodological approaches
vibrating filter
water treatment
Opis:: The geographical location and climatic conditions of Ukraine cause the active development of land reclamation, as it enables to ensure stable and high yields. The complexity of forecasting in this area, namely the dependence of the results on the changing weather and climate conditions, does not allow to effectively use the standard instruments for justifying the investment for agricultural and land reclamation innovation. The necessity of improving methodological approaches to evaluating the effectiveness of investments in projects in the field of agricultural production and land reclamation was substantiated. The proposed approaches were tested on the advanced technology of water treatment in irrigation based on using a vibrating gravitation filter enabling to perform simultaneously the processes of water treatment and filter element regeneration. The obtained results clearly show that the advanced technology of irrigation water treatment and the developed for this technology design of the vibrating gravity filter are cost-effective. The current payback period for irrigation projects when using the purified water under this advanced technology is 5 years. It is the same as for the irrigation projects when using clean irrigation water. Thus, our proposed approaches to the evaluation of investments in new water treatment technologies applied in irrigation enable to adapt the modern methodology of analysis of economic and investment efficiency of projects to the domestic needs of agricultural production, namely to take into account the impact of changing weather and climate conditions on the resulting economic parameters.
Źródło:: Journal of Water and Land Development; 2020, 45; 119-125
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Evaluation of climate change in Ukrainian part of Polissia region and ways of adaptation to it
Ocena zmian klimatu i adaptacji do nich w ukraińskiej części Polesia
Autorzy:: Kovalenko, Pyotr
Rokochinskiy, Anatoliy
Jeznach, Jerzy
Koptyuk, Roman
Volk, Pavlo
Prykhodko, Nataliіa
Tykhenko, Ruslan
Powiązania:: https://bibliotekanauki.pl/articles/292706.pdf
Data publikacji:: 2019
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: climate change
evaluation
Polissia region
ways of adaptation
ocena
Polesie
sposoby adaptacji
zmiany klimatu
Opis:: The analysis of the current state of weather and climatic conditions and evaluation of their predicted changes for immediate and distant prospect in the drained areas of Ukrainian Polissia region was carried out in the article. The main trends in changes of meteorological characteristics and their possible effect on the conditions of functioning water management and ameliorative objects and complexes as well as on the natural and ameliorative state of drained areas were identified. The research uses a method of predictive-simulation modelling with used predictive assessment models of normalized distribution of the basic meteorological characteristics in the long-term and one-year vegetation context. According to the results of the research it was established that, for today a high variability in meteorological characteristics can lead to the significant deterioration of operation conditions of water management and ameliorative objects and units, as well as natural and ameliorative conditions of drained lands in Polissia region as a whole. Core measures regarding the adaptive potential enhancement and development in the region under the conditions of climate change were examined.
W pracy przeprowadzono analizę obecnego stanu pogody i warunków klimatycznych oraz ocenę spodziewanych zmian w krótszej i dłuższej perspektywie czasu na drenowanych obszarach ukraińskiej części regionu Polesia. Zidentyfikowano główne trendy zmian charakterystyk meteorologicznych i ich potencjalny wpływ na warunki funkcjonowania gospodarki wodnej w obiektach i kompleksach melioracyjnych oraz na naturalny i zmieniony stan drenowanych obszarów. W badaniach wykorzystano modelowanie prognostyczno-symulacyjne z użyciem modeli znormalizowanego rozkładu podstawowych charakterystyk meteorologicznych w kontekście wieloletnich i rocznych zmian roślinności. Ustalono, że duża zmienność elementów meteorologicznych może prowadzić do znaczącego pogorszenia gospodarki wodnej i stanu obiektów melioracyjnych oraz warunków naturalnych na drenowanych obszarach całego Polesia. Zbadano główne zabiegi związane ze wzmocnieniem potencjału adaptacyjnego i rozwojem regionu w warunkach zmian klimatycznych.
Źródło:: Journal of Water and Land Development; 2019, 41; 77-82
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Forecasted estimation of the efficiency of agricultural drainage on drained lands
Przewidywana ocena wydajności rolniczego drenażu na terenach zdrenowanych
Autorzy:: Rokochinskiy, Anatoliy
Volk, Pavlo
Pinchuk, Oleg
Turcheniuk, Vasyl
Frolenkova, Nadiia
Gerasimov, Ievgenii
Powiązania:: https://bibliotekanauki.pl/articles/293314.pdf
Data publikacji:: 2019
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: agricultural drainage
complex model
effectiveness
parameters
odwadnianie rolnicze
parametry
wydajność
złożony model
Opis:: In the article we developed the design principles and implementation of a complex model and optimized the design parameters of drainage. The study was based on the implementation of interconnected structural and technological forecasting simulation and optimization model blocks, which in turn allowed to justify the optimal design parameters and drainage considering multiple natural and agronomic conditions and reclamation facilities. Example of evaluating the performance of drainage on drained lands was made for the conditions of a real project, implemented on lands of agricultural holding “May Day” located within of drainage system “Ikva” in the Rivne region. For the object conditions (average decade formation conditions of the drainage flow module for growing perennial grasses, winter cereals and potatoes) the estimated duration of the growing season was 214 days (100%), of which the total duration of drainage was 60% and included different levels of efficiency: 39% – ecological, 15.5% – technological and 5.5% – economic. The duration of its critical operations (forming module drainage flow exceeds the design of its value) does not exceed 5%. Thus, this approach enables the assessment of drainage with predetermined or specified parameters in the construction or renovation of drainage systems on different levels of effectiveness. It can be effectively used in the overall complex predictive and optimization calculations to substantiate the design and parameters of agricultural drainage, taking into account the variability of natural agrotechnical and reclamation conditions of a real object.
W pracy rozwinięto zasady projektowania i wdrażania złożonego modelu oraz zoptymalizowano parametry projektowe drenażu. Badania oparto na wdrożeniu wzajemnie powiązanych symulacji strukturalnych i technologicznych oraz na optymalizacji bloków modelowych, co pozwoliło uzasadnić optymalne parametry projektowe z uwzględnieniem wielu czynników przyrodniczych, rolniczych i urządzeń melioracyjnych. Jako przykład oceny działania systemu drenarskiego przyjęto rzeczywisty projekt wdrażany na ziemiach przedsiębiorstwa rolniczego „May Day” usytuowanego w systemie drenarskim „Ikva” regionu Równe. W warunkach panujących na badanym obiekcie (dekadowe średnie warunki przepływu wód w uprawie wieloletnich traw, zbóż ozimych i ziemniaków) oszacowana długość sezonu wegetacyjnego wynosiła 214 dni (100%), przy czym przez 60% tego czasu woda była drenowana. Efektywność zależała w 39% od czynników ekologicznych, 15,5% – technologicznych i 5,5% – ekonomicznych. Długość operacji krytycznych (przekraczających wartość planowaną) była mniejsza niż 5%. Prezentowane podejście umożliwia ocenę drenażu ze wstępnie ustalonymi szczegółowymi parametrami w warunkach budowy lub renowacji systemów odwadniających o różnym stopniu wydajności. Może być zatem wykorzystane w złożonych obliczeniach prognostycznych i optymalizacyjnych jako wsparcie projektów rolniczego drenażu z uwzględnieniem zmienności naturalnych warunków agrotechnicznych i melioracyjnych konkretnego obiektu.
Źródło:: Journal of Water and Land Development; 2019, 40; 149-153
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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