Fariz Mikayilov

• Professor
• Professor at Iğdır University

An overview of mathematical models on cattle lactation is herein provided. A technique for constructing lactation curves using logical assumption and Verhulst’s logistic function for predicting the cows’ milk production is described. A new modeling lactation method that is based on solving the equation that describes the rate of change of milk prod...

Разработаны методики определения коэффициента температуропроводности по точечному значению температуры почв заданной мощности на основании результатов анализа динамики температуры на одной глубине по восьми суточным наблюдениям с интервалом в 3 ч. Предложенные методы основаны на решении (с двумя гармониками на поверхности почвы) обратных задач урав...

Soil temperature is one of the most important factors affecting the physical, chemical and biological properties of soils. Thermal properties of soils are related to soil temperature. Daily temperature data were collected using Elitech RC–4 sensors placed at different depths (0, 5, 10, 15, 20, 40 and 60 cm) of the clay loam soil (Clayey Calcic Pant...

Climate change-induced precipitation anomalies during extremely wet years (EWYs) result in substantial nitrogen losses to aquatic ecosystems (N w). Still, the extent and drivers of these losses, and effective mitigation strategies have remained unclear. By integrating global datasets with well-established crop modeling and machine learning techniqu...

Methods for determining the thermal diffusivity coefficient from a point value of soil temperature of a given thickness based on the results of analyzing the temperature dynamics at one depth based on eight daily observations with an interval of 3 hours have been developed. The proposed methods are based on solving (with two harmonics on the soil s...

Abstract. Dissolution and leaching of salts from the soil primarily promotes the loss of porosity and connectivity of crystallization. There is thus an increase in permeability and the weakening of the soil. Saline soils in these conditions are more deformation – suffusion sedimentation. Therefore, the issues of forecasting suffusion deformations b...

Предложены методики определения коэффициента температуропроводности по точечному значению температуры почв заданной мощности на основании результатов анализа динамики температуры на одной глубине по восьми суточным наблюдениям с интервалом в 3 ч. С помощью этих методик разработаны алгоритмы для вычисления потока тепла в почву на произвольном глубин...

Разработаны методики определения коэффициента температуропроводности по точечному значению температуры почв заданной мощности на основании результатов анализа динамики температуры на одной глубине по восьми суточным наблюдениям с интервалом в 3 ч. Предложенные методы основаны на решении (с двумя гармониками на поверхности почвы) обратных задач урав...

Soil degradation is an increasing problem in Turkey, especially in the Middle Anatolia region where the annual precipitation is approximately 300 mm, resulting from conventional farming methods. To address this issue, the artificial neural networks (ANNs) are used, as they are flexible mathematical tools that capture data. This study aims to invest...

В данном исследовании были проведены анализы при различных концентрациях (3, 6, 9, 12, 15, 18, 21, 24, 30 %) субстрата H2O2 для расчета кинетических параметров фермента каталазы почвы (Vmax, KM, Vmax / KM, KSEE, [S]opt и υ 0,max). Чтобы рассчитать эти параметры, сначала были рассчитаны значения скорости (υ) с использованием результатов анализа. Зат...

Toprağın enzimatik aktivitesi, toprakların verimliliğinin, kalitesinin tanısal bir göstergesi olarak kullanılabilir. Enzimlerin bu özelliğinin anlamlandırılması için enzimlerin kinetiğinin incelenmesi gerekmektedir. Bilindiği gibi, kinetik araştırmalarda reaksiyon hızının pratik olarak tespit edilmesi, enzimatik reaksiyonun başlangıç hızının belirl...

The management of the thermal regime of soils is the most important condition for intensive agricultural production in open and protected ground conditions. Modern management is based on predictive multivariate calculations of the thermal regime and the choice of the optimal option for influencing the soil cover to improve the thermal regime. In ad...

Засоленность и щелочность являются одними из важных почвен-ных проблем в Ыгдырском районе с засушливым, полузасушливым климатом. Хотя негативное влияние засоления и щелочности на свойства почвы извест-но, исследований активности и кинетики ферментов недостаточно. По этой причине это исследование было проведено для определения влияния засоления и ще...

В работе изложены классические и современные представления моделирования ферментативных процессов и определения начальнои скорости ферментативнои реакции графическими и аналитическими методами. Приводятся методики определения начальнои скорости ферментативнои реакции в почвах. В отличие от аналитического метода Ньютона-Греогори предлагается новыи м...

Identification of critical source areas (CSAs) for non-point source (NPS) pollution is of great significance for environment governance and prevention. However, the CSAs are generally characterized as great spatial dispersion, and spatially heterogeneous precipitation has a great influence on the spatial distribution of nutrient yields. Therefore,...

Soil temperature is a key factor that controls many biotic and abiotic processes in soils. The rate of chemical reactions occurring in the soil and plant roots, the movement of moisture in the soil and in the plant, gas exchange in the soil, the solubility of mineral salts, and a number of other factors depend significantly on temperature. The reli...

Soil temperature is one of the most important factors affecting the physical, chemical and biological properties of soils. Soil temperature influences processes such as seed germination, plant growth and development, soil moisture, soil aeration, soil structure, microbiological activity, decomposition of crop residues, availability of plant nutrien...

Soil temperature is one the most important factors affecting physical, chemical, and biological characteristics of soils. Soil temperature influences processes such as seed germination, plant growth and development, soil moisture flow and availability to plants, aeration, structure formation, microbiological activity, decomposition of crop residues...

Soil enzymes, one of the soil quality parameters, are responsible for nutrient cycling, decomposition of organic matter and catalyzing numerous reactions in the soil. Soil enzymes are generally of microbial origin as well as being of animal and plant origin. Since the amount of enzymes cannot be determined in the soil, their activities are determin...

Kurak-yarı kurak iklime sahip olan Iğdır Bölgesi’nde, tuzluluk ve alkalilik önemli toprak problemler arasındadır. Tuzluluk ve alkaliliğin toprak özellikleri üzerine olumsuz etkileri bilinmekle birlikte, enzim aktiviteleri ve kinetiği hakkında yeterli araştırma bulunmamaktadır. Bu sebeple bu çalışma, tuzluluk ve alkaliliğinin toprakta katalaz aktivi...

Prediction of soil temperature at an acceptable level of accuracy is essential for managing soil temperature at large scales since its measurement is costly and not practical due to its high spatial and temporal variability. This study was carried out to: 1) сalculate the coefficient of thermal conductivity with classical methods using data from me...

The objective of this work is to investigate the influence of boundary conditions at depth soil on the development of methods to determine the soils apparent thermal diffusivity based on solution of inverse problems of a heat-transfer equation. Experimental investigations were carried out to establish the influence of boundary conditions at depth i...

Since the soil is a material that is not protected against all kinds of ef-fects, so many factors (organisms, climatic changes etc.) affect soil proper-ties. Climatic factors which effect soil properties are temperature changes and precipitation. Also these factors affect soil formation processes. In addition, temperature and precipitation affect t...

Soil salinity and alkalinity is an important problem that causes degradation in soils caused by the effect of climatic, topographic or anthropogenic factors. Approximately 955 million hectares of land in the world were affected by salt and approximately 20 million hectares were out of agriculture. In our country, there are salinity and alkalinity p...

The effect of changing the range of introduced metal concentrations, the ratio of solid and liquid phases, and the combined presence of other metal ions in the solution on the absorption of Zn by the meadow soil was studied. As the range of applied concentrations expands and increases (up to 100 mM/L), there is a significant decrease in intensity o...

Aksaray Üniversitesi kampüs alanında bitki yetişmesini sınırlayan, toprak kaynaklı sorunların kimyasal, fiziksel ve hidroteknik gibi ıslah yöntemleri uygulanarak bitkilerin yetiştirilmesi ve alanın peyzaja uygun hale getirilmesi amaçlanarak bu çalışma yapılmıştır. Alan toprağında başat olan bulgular; pH 8.0-9.2 arasında, değişebilir sodyum yüzdesi...

Limiting plant growth in the Aksaray University campus area, ıt has been made with the aim of cultivating the plants and making the area suitable for the landscape by applying the methods of improvement of soil related problems such as chemical, physical and hydrotechnical. The predominant findings in the campus soil were measured betweenpH 8.0-9.2...

The problem of the quantitative assessment and prediction of suffosion-induced subsidence in saline soils and sediments is relevant for irrigation, washing of saline soils, and increasing amounts of domestic and industrial effluents. Based on the solution of the convective diffusion equation and taking into account the dissolution of salts of the s...

23.01.2020 г. После доработки 21.02.2020 г. Принята к публикации 18.03.2020 г. Проблема количественной оценки и прогноза суффозионных просадок в засоленных почвах и грун-тах актуальна в связи с орошением, промывками засоленных почв, увеличивающимся количеством бытовых и промышленных стоков. На основе решения уравнения конвективной диффузии с учетом...

An unexpectedly high infiltration capacity was determined for heavy-textured, clayey alluvial calcareous soils (Calcic Haploxerepts) in central Anatolia, Turkey, presumably due to the specific mineralogical contents. In order to unravel the phenomenon, clay mineralogy and morphology, soil microaggregate composition, and carbonate accumulations were...

Soil temperature affects a number of processes and phenomena occur-ring in the soil, such as: the rate of chemical reactions; the intensity of trans-fer processes; physiological processes occurring in the living phase of the soil; ecological functions of the soil. In this regard, the study of the thermal properties of soils is of particu-lar intere...

Geographical Information System (GIS) is used to bring together, store and process data obtained from diverse sources. In soil studies, too, samples taken from fields are subjected to numerous different analyses in laboratory environment. Spatial analyses are made by matching results of these laboratory analyses with positional information. In this...

Bu çalışma, yıllık yağışın az, aşırı buharlaşmanın ve taban suyunun yüzeye yakın olması nedeniyle oluşan tuzluluğun, bitkinin gelişmesine, verime ve toprağın çoraklaşmasına olumsuz etkisinin yıkamayla ortadan kaldırılması amacıyla yapılmıştır. Tuzlu toprakların ıslahı, maliyetli ve zaman gerektiren bir süreçtir. Çözünebilir tuzların yıkanması amacı...

ÖZET Bu çalışma, yıllık yağışın az, aşırı buharlaşmanın ve taban suyunun yüzeye yakın olması nedeniyle oluşan tuzluluğun, bitkinin gelişmesine, verime ve toprağın çoraklaşmasına olumsuz etkisinin yıkamayla ortadan kaldırılması amacıyla yapılmıştır. Tuzlu toprakların ıslahı, maliyetli ve zaman gerektiren bir süreçtir. Çözünebilir tuzların yıkanması...

The study of the influence of boundary conditions on in surface and at depth of soil in natural conditions is an urgent task of modeling heat transfer in the soil. The objective of this work is to investigate the infl uence of boundary conditions on in soil at depth under natural conditions on the development of methods to determine the soil′s ther...

The fractional composition of Cu in the Haplic Chernozem under the artificial contamination of acetates in the dose of 300 mg·kg-1 and 2000 mg·kg-1 was studied. To determine the speciation of the investigated metals Miller method (Berti, Jacobs, 1996), and Tessier method (Tessier et al. 1979) and the "standardized" method of fractionation of the Bu...

Information value of sequential extraction for assessing the speciation of Cu2+ in Technosols (up to 2000 Cu mg/kg) was shown at the selective removal of the main solid-phases components from the soil. The speciation of Cu was studied by the Tessier method. Carbonates, Fe-Mn sesquioxides, and organic matter were removed from soil samples. When orga...

Zn speciation in long-term contaminated soils near the sediment pond of the chemical plant was investigated. Representative soils from the area with high levels of Zn contamination (26,000–66,000 mg/kg) were selected. Zn distribution in the soil components was investigated using sequential chemical extraction, X-ray powder diffraction and X-ray abs...

Abstract. Prediction of soil temperature at an acceptable level of accuracy is essential for managing soil temperature at large scales since its measurement is costly and not practical due to its high spatial and temporal variability. This study was carried out for:: 1) Calculate the coefficient of thermal conductivity using classical methods and b...

Drought events have significant impacts on agricultural production in Sub-Saharan Africa (SSA), as agricultural production in most of the countries relies on precipitation. Socio-economic factors have a tremendous influence on whether a farmer or a nation can adapt to these climate stressors. This study aims to examine the extent to which these fac...

Requirement for a high resolution geoid model has increased substantially during the last few decades especially with the advent of Global Navigation Satellite Systems (GNSS). As an example, when orthometric heights are used in engineering and GIS applications local quasi-geoid determination studies have become especially important. As it is well k...

This study was conducted to: 1) evaluate performance of four different modeling approaches to predict soil temperature on a soil profile and undisturbed soil column of the same soil and 2) to compare results from soil column and soil profile to decide representative ness of column studies filed conditions. Soil temperature was measured with water-p...

This study was conducted to: 1) evaluate performance of four different modeling approaches to predict soil temperature on a soil profile and undisturbed soil column of the same soil and 2) to compare results from soil column and soil profile to decide representative ness of column studies filed conditions. Soil temperature was measured with water-p...

The formation of compacted subsoil layer under the impact heavy machines is a global problem in soil science, soil physics, and agrotechnology because of the numerous and significant effects on the water, air, and thermal regimes of soils, their permeability for root systems of plants, etc. For recent calcareous allu-vial soils (Calcic Fluvisols) i...

Формирование уплотненного внутрипочвенного слоя (“подпочвенное уплотнение”) под влиянием тяжелой техники является глобальной проблемой почвоведения, физики почв и агротехнологии, так как имеет многочисленные и существенные влияния на водный, воздушный и тепловой режи- мы почв, их проницаемость для корневых систем растений и другие множественные воз...

Abstract. The construction of empirical models for the analysis and prediction of agroecological processes during the experiments is one of the most important tasks of research. The aim of the study is to review the criteria for assessing the adequacy of empirical models used in the quantitative analysis and forecasting of various environmental pro...

Изучение и моделирование суффозионных процессов в ланд- шафтно-геохимических системах является одно из актуальных задач современной геохимической гидродинамики. Значение суффозионных процессов заключается, прежде всего, в их опасности для различных зданий и сооружений. Исследование проблемы прочности и устойчивости засоленных почвогрунтов залегающи...

Shows a comparison of methods used in modeling of soil thermal properties under grassland canopy in semiarid Аnatolia.

Requirement for a high resolution geoid model has increased substantially during the last few decades especially with the advent of Global Positioning System (GPS). Many countries across the world have already developed their own geoidal model which serve as the means of deriving orthometric heights from GNSS observations. On the other hand, the ne...

Ellipsoidal heights are determined with high accuracy using Global Navigation Satellite System (GNSS) techniques. In infrastructure projects undertaken for engineering purposes, orthometric heights are used. Geoid determination studies based on these two height systems are growing in importance. Although various methods are employed in geoid determ...

On the kinetics of enzymatic processes of soils, numerous studies have been carried out in which the kinetic parameters Vmax and KM are determined using the Michaelis-Menten equation. As the value of the reaction rate, the reaction enzyme activity values are usually used for a short period of time from the start of the reaction. In contrast to thes...

Requirement for a high resolution geoid model has increased substantially during the last few decades especially with the advent of Global Positioning System (GPS). Many countries across the world have already developed their own geoidal model which serve as the means of deriving orthometric heights from GNSS observations. On the other hand, the ne...

In the article the algorithm of control of water regime of agricultural crops during irrigation is put, which consists in the fact that. The analysis of well-known and developed by the authors GIS-systems for monitoring and control of water regime of irrigated fields, mainly for acute arid conditions. The analysis of Russian and foreign development...

On the kinetics of enzymatic processes of soils, numerous studies have been carried out in which the kinetic parameters Vmax and KM are determined using the Michaelis-Menten equation. As the value of the reaction rate, the reaction enzyme activity values are usually used for a short period of time from the start of the reaction. In contrast to thes...

In the article the algorithm of control of water regime of agricultural crops during irrigation is put, which consists in the fact that. The analysis of well-known and developed by the authors GIS-systems for monitoring and control of water regime of irrigated fields, mainly for acute arid con-ditions. The analysis of Russian and foreign developmen...

In the article the algorithm of control of water regime of agricultural crops during irrigation is put, which consists in the fact that. The analysis of well-known and developed by the authors GIS-systems for monitoring and control of water regime of irrigated fields, mainly for acute arid con-ditions. The analysis of Russian and foreign developmen...

In the article the algorithm of control of water regime of agricultural crops during irrigation is put, which consists in the fact that. The analysis of well-known and developed by the authors GIS-systems for monitoring and control of water regime of irrigated fields, mainly for acute arid con-ditions. The analysis of Russian and foreign developmen...

In the article the algorithm of control of water regime of agricultural crops during irrigation is put, which consists in the fact that. The analysis of well-known and developed by the authors GIS-systems for monitoring and control of water regime of irrigated fields, mainly for acute arid con-ditions. The analysis of Russian and foreign developmen...

25, 2018 г. УДК 631.46 Оценка основных кинетических параметров каталазы в почве Фариз Микайылов Кафедра почвоведения и питания растений сельскохозяйственного факультета университета «Ыгдыр», 76000, г. Ыгдыр, Турция, fariz. m @ igdir. edu. tr АННОТАЦИЯ По вопросам кинетики ферментативных процессов почв проведены многочисленные исследования, в котор...

Soil erosion is a growing problem in Turkey and particularly in the Middle Anatolia, the biggest semi arid agricultural production area with great agricultural activity. Soil erosion not only decreases agricultural productivity, but also reduces the water availability in region. Nonlinear regression models are important tools because many crop and...

Аннотация. Представлено обоснование критериев выбора математических моделей для описания экспериментальных данных на примере полевых исследо-ваний, связанных с агрофизическими свойствами почвы. Проведен обзор приме-няемых в мелиорации эмпирических моделей, анализ критериев их выбора и ве-рификации. Ключевые слова: классификация моделей, математичес...

Drought as a slow-onset phenomenon inflicts important losses to agriculture where the degree of vulnerability depends not only on physical variables such as precipitation and temperature, but also on societal preparedness. While the scopes of physical and social vulnerability are very different in nature, studies distinguishing these two aspects ha...

A considerable part of study area has boron-sodic and saline properties. In this study, in reclamation of boron soils were used water and sulphur (S). Empirical models were used in determining of leach water norm in the reclamation of soils. Analytical expressions of these models are hyperbolic, force, exponential and logarithmic. At the same time,...

Application of integrated hydrological models to manage a watershed’s water resources are increasingly finding their way into the decision-making processes. The Soil and Water Assessment Tool (SWAT) is a multi-process model integrating hydrology, ecology, agriculture, and water quality. SWAT is a continuation of nearly 40 years of modeling efforts...

Abstract Soil thermal properties directly affect soil productivity. Thermal properties of soils under different plant covers show differences and a complicated relations with plant cover type as plant cover affects both amount and partitioning of solar radiation on the soil surface and heat flow and storage in the soil profile. The vertical changes...

The decline of the agricultural resources as a result of population growth, the pollution of natural re-sources, ensuring reliable food supply, and protection of natural and ecological balance are the most vital issues of today and tomorrow. Transition to agricultural mechanization and improvement of agricultural land is necessary for efficient and...

Flash floods are natural phenomena with environmental, social and economic impacts. To date, few numerical models are able to simulate hydrological processes at catchment scale at a reasonable time scale to describe flash events with accurate details. Considering a ~810 km 2 Mediterranean river coastal basin (southwestern France) as a study case, t...

Salinity, especially in arid and semi-arid regions where the annual total precipitation is low, occur with the accumulation of resoluble salts in the root region of plant. In recent years, the region has seen an increase in irrigation in agriculture and the unconscious water consumption has brought salt to the soil. Therefore, the most effective me...

Analytical solution of the problem of migration of polluting substances in the limited soil layer should be interesting, particularly in the case when the moisture and mass transport occur at shallow level of subsoil or ground water. In this case the data, sufficient for application of the analytical solution of the problem of mass transport, can b...

Uncertainties due to climate change and population growth have created a critical situation for many megacities. Investigating spatio-temporal variability of water resources is, therefore, a critical initial step for water-resource management. This paper is a first study on the evaluation of water-budget components of water resources in Istanbul us...

A large number of local and global databases for soil, land use, crops, and climate are now available from different sources, which often differ, even when addressing the same spatial and temporal resolutions. As the correct database is unknown, their impact on estimating water resource components (WRC) has mostly been ignored. Here, we study the u...

As water resources become further stressed due to increasing levels of societal demand, understanding the effect of climate and landuse change on various components of the water cycle is of strategic importance. In this study we used a previously developed hydrologic model of the Black Sea Catchment (BSC) to assess the impact of potential climate a...

The Black Sea catchment (BSC) is facing important demographic, climatic and landuse changes that may increase pollution, vulnerability and scarcity of water resources, as well as beach erosion through sea level rise. Limited access to reliable time-series monitoring data from environmental, statistical, and socio-economical sources is a major barri...

The economic concerns of low-income farmers are barriers to nutrient abatement policies for eutrophication control in surface waters. This study brings up a perspective that focuses on integrating multiple-pollutant discharge permit markets with farm management practices. This aims to identify a more economically motivated waste load allocation (WL...

The successful application of hydrological models relies on careful calibration and uncertainty analysis. However, there are many different calibration/uncertainty analysis algorithms, and each could be run with different objective functions. In this paper, we highlight the fact that each combination of optimization algorithm-objective functions ma...

Abstract Plant covers have highly complicated effects on soil thermal properties due to multiple interactions among plants, soil, and soil thermal properties. Plant cover type and its spatial orientation can affect soil surface temperature and soil thermal properties. Soil thermal properties differ under different plant covers. This study was condu...

Hydrological models have been widely used for water resources management. Successful application of hydrological models depends on careful calibration and uncertainty analysis. Spatial unit of water balance calculations may differ widely in different models from grids to hydrological response units (HRU). The Soil and Water Assessment Tool (SWAT) s...

Studies using Drought Hazard Indices (DHIs) have been performed at various scales, but few studies associated DHIs of different drought types with climate change scenarios. To highlight the regional differences in droughts at meteorological, hydrological, and agricultural levels, we utilized historic and future DHIs derived from the Standardized Pr...

This study examines the water productivity of irrigated wheat and maize yields in Karkheh River Basin (KRB) in the semi-arid region of Iran using a coupled modeling approach consisting of the hydrological model (SWAT) and the river basin water allocation model (MODSIM). Dynamic irrigation requirements instead of constant time series of demand were...

A procedure to determine the thermal diffusivity of soils, which is based on the heat-transfer equation, has been developed. Experimental investigations were carried out to establish the influence of boundary conditions on the soil surface on the solution of inverse problems of modeling of heat transfer in soil. On the basis of these data, the auth...

Study region: Alberta, Canada. Study focus: The security of freshwater supplies is a growing concern worldwide. Understanding dynamics of water supply and demand is the key for sustainable planning and management of watersheds. Here we analyzed the uncertainties in water supply of Alberta by building an agro-hydrological model, which accounts for m...

Разработана методика определения коэффициента температуропроводности почв, основанная на ре- шении уравнения теплопереноса. Для установления влияния граничных условий на поверхности почвы на решение обратных задач моделирования теплопереноса в почве были проведены экспериментальные ис- следования. На основе этих данных рассчитаны коэффициент темпер...

Особенность горного почвообразования в том, что почвана склонах гор образуются разные биоклиматические и орогеоморфологические условия. Цель исследованияrch заключается в изучении генетических свойств коричневого цвета длясамые почвы в Среднем Урал. Особенности морфологического строения: трукатаный профиль (35-75 см), слабо выражен в дифференциация...

Soil temperature depends on the soil heat relationship (radiation, heat capacity, thermal conductivity, etc.). Heat relations consists heat conduction in the soil and the temperature change caused by heat exchange between the atmosphere and soil. Temperature changes vary depending on the time and soil depth. In this study, soil temperature was meas...