Ukrainian Agronomic Soil Science: Textbook. In 2 parts; editor M.I. Polupan. Part 2: Soil classification. Soil-ecological zoning. Zonality as a factor of soils’ geography by ecological-genetic status, their morphological and quantitative diagnostics, agro-soil potential of crops. Specialization of agriculture according to soil and ecological conditions. Monitoring of land resources. Doctrine of rational land use in Ukraine

2019 ◽  
Author(s):  
M. Polupan ◽  
V. Velychko
Keyword(s):  
Large Scale ◽  
Soil Cover ◽  
Soil Science ◽  
Land Resource ◽  
Productive Capacity ◽  
Land Resources ◽  
Soil Resources ◽  
Ecological Conditions ◽  
Wide Range ◽  
Genetic Status

The textbook is devoted to the soil resources of Ukraine, as an indispensable natural and economic potential for use in agricultural production to meet the needs of society with food products. Their great diversity is shown due to the component composition regarding the zonation of the ecological and genetic status of soils. Presence for the soil resources of functionally systematic interrelation between ecological conditions of the formation of agronomic properties and their productive capacity have been proved. Due to a large amount of information, the textbook is conventionally divided into two parts. The second part of the textbook presents the genetic ecological-substantive classification of soils of Ukraine as a parametric system of their differentiation in the context of the hierarchy of taxonomic units on the basis of adequacy between quantitative indicators of their properties and conditions of formation. Therefore, soil nomenclature is a resource indicator. On the basis of soil ecological zoning, 6 successive levels of territorial differentiation of soil cover were established according to the principle of soil bodies adequacy to environmental conditions. Each selected structural unit of the pedosphere (zone, subzone, facies, province, pedopotsella, and pedorotope) is characterized by specific features of the properties and parameters of natural factors of their formation. Therefore, in the designated territories, they in the aggregate cause the formation of different agricultural potential resource parameters. Therefore, soil-ecological zoning is the basic basis for the differentiation of land resources by natural and efficient soil fertility. Zonality as a factor in soil geography by ecological-genetic status. Therefore, the characteristics of soils in the textbook are given within the soil-ecological zones, their morphological and quantitative diagnostics and agro-soil potential of the basic agricultural crops. Specialization in agriculture is a strategic measure of the efficient use of soil resources. Zones of specialization of agriculture of Ukraine in accordance with soil and ecological conditions. Land resource monitoring and large-scale soil cover research are strategic measures for its effective balanced use. The textbook “Ukrainian Agronomic Soil Science” presents basic information about soil resources of Ukraine in the aspect of agronomic orientation regarding their zonally determined ecological-genetic status of soils, their properties, productive capacity, protection, and increase of fertility. It is recommended for the preparation of bachelors in agronomic higher education institutions of II–IV levels of accreditation in the field of “Agronomy”, as well as for biological, geographical and other higher educational establishments, graduate students and a wide range of specialists related to the land cadastre of Ukraine, fertility assessment rational use of soils.

Ukrainian Agronomic Soil Science: Textbook. In 2 parts; editor M.I. Polupan. Part 1: Historical stages of development. Soil formation factors. Regularities of soil formation on an ecological-genetic parametric systemic basis, their agronomic properties, and fertility

2019 ◽  
Author(s):  
M. Polupan ◽  
V. Velychko
Keyword(s):  
Soil Formation ◽  
Component Composition ◽  
Soil Science ◽  
Productive Capacity ◽  
Soil Resources ◽  
Wide Range ◽  
Genetic Status ◽  
Systematic Development ◽  
Soil Formation Factors ◽  
Zonal Soil

The textbook is devoted to the soil resources of Ukraine, as an indispensable natural and economic potential for use in agricultural production to meet the needs of society with food products. Their great diversity is shown due to the component composition regarding the zonation of the ecological and genetic status of soils. The soil resources are shown to have a functionally systematic relationship between ecological conditions of formation, agronomic properties, and their productive capacity. Due to a large amount of information, the textbook is conventionally divided into two parts. The first part presents the historical stages of the formation of agro-soil science as fundamental science, parametric systematic development of zonal soil formation and formation of soil properties depending on their genetic nature, the quantitative functional relationship between modes and processes of soil formation, its types, fertility of soils as their anthropogenic biological property, factors of formation, its kinds, methods of determination and parameters of productive capacity of basic agricultural crops. The textbook "Ukrainian Agronomic Soil Science" presents basic information about soil resources of Ukraine in the aspect of agronomic orientation regarding their zonally determined ecological-genetic status of soils, their properties, productive capacity, protection, increase of fertility, and intelligent use. It is recommended for the preparation of bachelors in agronomic higher education institutions of II–IV levels of accreditation in the field of «Agronomy», as well as for biological, geographical and other higher educational establishments, graduate students and a wide range of specialists related to the land cadastre of Ukraine, fertility assessment rational use of soils.

Analysis of Information Support for the Condition of Soil Resources in Ukraine

2015 ◽  
Vol 2 (2) ◽  
pp. 77-84 ◽  
Author(s):  
S. Baliuk ◽  
V. Solovey ◽  
M. Zakharova ◽  
A. Kucher ◽  
S. Truskavetskyi
Keyword(s):  
Soil Cover ◽  
Sustainable Land Use ◽  
Information Support ◽  
Land Resources ◽  
Soil Resources ◽  
Diffi Cult ◽  
Other Information ◽  
Global Soil ◽  
Individual Type ◽  
Available Information

The contemporary condition of soil cover in Ukraine is characterized. The attention is focused onto widespread degradation processes in soils. The causes that determine the development of these negative processes are considered. The contemporary informational support for the condition of soil cover in Ukraine is estimated. In general, the current available information is of narrow-departmental nature, obtained by different methods and non-correlated monitoring programs. As a rule, it is stored in under-structured databases, incompatible with other information systems; mainly recorded on paper media unusable with modern technologies, whereby such information resources are diffi cult to be compiled together. These disadvantages are strong constraints against consistent usage of materials for evaluation, forecast and management of changes in the soil cover. The Soil Observation program should thereby be combined with Agrochemical Passportization and ecology-ameliora- tive monitoring; in other words, the application of innovative soil-agrochemical methodology is considered. Each individual type of surveys shall complement the others, and taken altogether, they shall constitute a con- sistent Information System, capable of solving the problems of assessing the condition, forecasting, manage- ment, usage and protection of soil resources. The monitoring procedures should be conducted on the basis of a new soil concept in line with unifi ed programs and methods, so as to meet European approaches to the maxi- mum extent. Such a technical composition enables getting information on present-day processes in soils, and is the only combination that actually helps us to “ecologize” our knowledge of soils, which is the leading trend in the scope of global soil-science. Thus obtained results will serve as a State-owned tool which would subse- quently facilitate the use and protection of soil resources all over the country, to be involved in a united global soil-information scope. The attention is focused onto social signifi cance of the information on soils and their fertility in terms of land resources optimization, as well as the formation of sustainable land use in Ukraine.

THE PHYSICAL BASIS OF SOIL EROSION: MECHANISM, PATTERNS OF EXPRESSION AND PREDICTION

2021 ◽  
Author(s):  
Valeriy Demidov ◽  
Oleg Makarov
Keyword(s):  
Soil Erosion ◽  
Soil Cover ◽  
Physical Basis ◽  
Soil Science ◽  
Educational Institutions ◽  
Soil Protection ◽  
Erosion Mechanism ◽  
The Past ◽  
Erosion Processes ◽  
Wide Range

The monograph summarizes the information over the past 20 years on the currently widely used. The textbook is intended for students of higher educational institutions, studying in the specialty of soil science, as well as specializing in erosion and soil protection. The textbook describes the physical basis and mechanism of erosion processes, based on some sections of hydraulics, hydrology, hydro-and aeromechanics, knowledge of which is necessary to understand the mechanism of water, wind and irrigation soil erosion. The main mathematical models and principles of forecasting the values of soil losses as a result of erosion processes are considered. The textbook will be useful not only for students and postgraduates studying in the specialty of soil science, but also for geographers, ecologists and a wide range of specialists interested in the problems of soil cover conservation and environmental protection.

Сontribution of Vladimir Markovich Fridland to the development of comparative-geographic approach

2019 ◽  
Vol 96 (4-6) ◽  
pp. 64-70
Author(s):  
Mykola Davydiuk
Keyword(s):  
Soil Cover ◽  
Comparative Method ◽  
Field Research ◽  
Research Area ◽  
Soil Science ◽  
Weathering Processes ◽  
The Earth ◽  
Wide Range ◽  
New Research ◽  
Geography Of Soils

The paper is devoted to the outstanding soviet geographer and soil scientist, Doctor of Geographical Sciences (1964), Professor (1968) Vladimir Fridland (1919–1983). A prominent place in his research works was taken by geospatial comparative-geographic studies. V. Fridland took part in many research projects in various parts of the world, including his motherland. From the actualistic and evaluative positions, the paper considers the important (at present) results from the seminal works of V. Fridland, which he had obtained using a wide range of methodological tools and research techniques, including comparative-geographical approach. V. Fridland also made an important contribution to the formation and development of natural geography. He enriched theoretical, methodological and applied aspects not only of soil science, but of geography in general. In his work of 1956, the scientist convincingly, in a concise comparative form and causal relationship, highlighted the natural conditions of the USSR and outlined their foreign analogues. In his influential work of 1964, V. Fridland had investigated the weathering processes, types of weathering, genesis and geography of soils in Northern Vietnam. In the 1970s, the pioneering scientist created a new research area – the doctrine of the structure of soil cover. Through field research in many regions of the Earth, the scientist has used and improved the approaches and methods of many natural sciences, including comparative one. V. Fridland successfully and productively used in scientific research almost the entire range of comparative-geographical methods. V. Fridland was the first one in the soviet geography to identify comparative method as an approach.

scholarly journals Ragam Konteks Skala Dalam Perspektif Kajian Sumberdaya Lahan

2020 ◽  
Vol 13 (2) ◽  
pp. 115
Author(s):  
Destika Cahyana ◽  
Baba Barus ◽  
Darmawan Darmawan ◽  
Budi Mulyanto ◽  
Yiyi Sulaeman
Keyword(s):  
Climate Change ◽  
Environmental Science ◽  
Information Science ◽  
Climate Science ◽  
Agricultural Science ◽  
Soil Science ◽  
Land Resource ◽  
Land Resources ◽  
Soil Geography ◽  
Scientific Disciplines

<p class="Paragraf"><strong>Abstrak. </strong>Kini isu ‘skala’ menjadi penting kembali dibahas oleh komunitas sumberdaya lahan. Awalnya sumberdaya lahan terbatas dikaji oleh disiplin ilmu tanah, ilmu geografi, dan ilmu kartografi, tetapi sekarang berkembang dikaji oleh disiplin ilmu lingkungan, ilmu iklim, ilmu statistik, serta ilmu teknologi dan informasi. Kajian sumberdaya lahan yang awalnya untuk kepentingan ilmu pertanian kini menghadapi problem yang lebih luas seperti perubahan iklim, krisis energi, keanekaragaman hayati, keseimbangan ekosistem, hingga perkembangan kota. Pada era ini perjumpaan ilmu tanah dengan disiplin ilmu lain tidak dapat dihindarkan karena telah menjadi keniscayaan untuk melayani kepentingan umat manusia yang lebih luas. Berkaitan dengan itu istilah ‘skala’ yang digunakan pada disiplin ilmu tanah, ilmu geografi, dan ilmu kartografi seringkali membingungkan ketika berjumpa dengan istilah ‘skala’ pada kajian sumberdaya lahan kontemporer. Skala dapat dipahami dalam beragam konteks: 1) skala informasi pada peta, 2) skala level pada berbagai proses, dan 3) skala pada angka pengukuran. Tiga konteks skala tersebut belum termasuk skala pada dimensi lain yaitu skala waktu yang tidak akan dibahas pada artikel ini.</p><p class="Paragraf"> </p><p class="JSDLAbstrak"><strong>Abstract. </strong><em>At present the issue of 'scale' becomes important to be rediscussed by scientists in land resources community. Initially, land resources were </em><em>only </em><em>studied by the limited disciplines, such as soil science, geography, and cartography, but now it is studied by the disciplines of environmental science, climate science, statistics, and technology and information science.</em><em> </em><em> At the beginning, the study of land resources was to support agricultural science, but at the present the study is to addresss broader problems such as climate change, energy crises, biodiversity, ecosystem balance, and urban development. In this era, the encounter of soil science with other scientific disciplines is inevitable because it has become a necessity to serve the broader of humanity interest. Related to that issue, the term of 'scale' used in the disciplines of soil, geography and cartography is often confusing when meeting to other different disciplines. There are at least 3 different contexts that use the term 'scale' in contemporary land resource studies</em><em> i.e : </em><em>1) scale of information on maps, 2) scale of levels in various processes, and 3) scale of measurement numbers. The</em><em>se</em><em> three contexts of scale are not included  scale of time </em><em>another dimensions </em><em>that will not be discussed in this article.</em></p>

scholarly journals International conference «Soil as interlink for functioning of natural and anthropogenically transformed ecosystems» devoted to the 90th anniversary of the department of pedology and land resources estimation, Irkutsk State University and year of Baikal

2021 ◽  
Vol 4 (3) ◽  
pp. 1-26
Author(s):  
T. V. Nechaeva ◽  
N. A. Sokolova ◽  
N. D. Kiseleva
Keyword(s):  
Lake Baikal ◽  
Classification Systems ◽  
Soil Science ◽  
State University ◽  
Land Resources ◽  
Wide Range ◽  
90Th Anniversary ◽  
The Village ◽  
Bratsk Reservoir

From August 23 to August 29, 2021, Irkutsk hosted the Vth International Scientific and Practical Conference "Soil as interlink for functioning of natural and anthropogenically transformed ecosystems" (hereinafter – the conference) dedicated to the 90th anniversary of the Department of Soil Science and Land Resources Assessment of the Irkutsk State University (ISU) and the Year of Baikal. The total number of participants of the conference was 130 from 27 regions of Russia and 6 other countries (the Republic of Belarus, Bulgaria, Georgia, Moldova, Lebanon and Lithuania). The article presents a brief review of plenary and sectional reports on the following research topics: 1) theoretical soil science: genesis, evolution, classification problems; 2). multidisciplinary approaches of soil science related to the use of soil science methods in other research areas and scientific and industrial areas; 3) Soil resources and land assessment (fertility, degradation, land reclamation, qualitative and economic assessment, ecology and land protection). A total of 43 presentations were given at the conference: 8 plenary and 35 sectional. The interested reader will find a detailed description of the reports presented in this review, as well as other and other conference materials in the collection "Soil as interlink for functioning of natural and anthropogenically transformed ecosystems" (2021). A brief description of two excursions is given: (1) one excursion to the beautiful scenery at the shore of the Lake Baikal, held on August 23, 2021; (2) and another excursion at the Bratsk Reservoir on August 26-29, 2021. The purpose of the excursions wass to get acquainted with the nature and historical and cultural heritage of the Irkutsk region, Lake Baikal, as well as with soils, soil-forming rocks and natural features of the Southern Angara region. During the excursion tour, landscapes, rock outcrops and soil sections were presented: soils on a bumpy-depression relief; Paleolithic site of ancient man "Malta" with sections near the geoarchaeological objects "Malta-Bridge 3"; alluvial gray-humus soil in the floodplain of the Belaya River; exposure of Lower Cambrian rocks near the village Novomaltinsk; Cheremkhovsky coal mine; dispersed-carbonate gypseous chernozem near the Unga River; Novonukutsky gypsum mine; gray metamorphic soil and micellar-segregational chernozem on the bank of the Bratsk reservoir near the village Balagansk. At the end of the tour, the conference participants held a roundtable discussion about the problems of genesis and classification of the soils of the south of the Near-Angara region. The classification position of all the presented soils was justified within the framework of two classification systems: Classification of soils of Russia (2004) and Classification and diagnostics of soils of the USSR (1977). For scientific and informational support of the excursion, the guide "Southern Pre-Angara region: features of soil formation on rocks of different ages" (2021) was prepared and published. The conference aroused great interest among a wide range of specialists in the field of soil science, agrochemistry and ecology, land resource assessment, landscape studies, etc. The organization of such events promotes exchange of experience and strengthens the cooperation between researchers from leading universities and research centers, advancing the effective development of soil science, research methodology and practice, generalizing the information about soil as a link between the functioning of natural and anthropogenically transformed ecosystems.

scholarly journals Optimization of Land Resource Information Management System Based on Internet of Things

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Taizheng Chen ◽  
Zhun Chen ◽  
Mingjie Tian ◽  
Xi Wang
Keyword(s):  
Information System ◽  
Decision Support ◽  
Resource Management ◽  
Information Management ◽  
Management System ◽  
Information Management System ◽  
Land Resource ◽  
Land Resources ◽  
Resource Information ◽  
Wide Range

The business process model of information management is also optimized, while helping the relevant departments using the system to improve their work efficiency. After research and analysis, this paper shows that the land resource information management system can be divided into four functional modules, which are basic land resource information management, land resource land use approval management, official document information management, and office business management, and these modules can effectively complete the work related to land resource management. The full and reasonable use and protection of land resources can ensure the implementation of sustainable development policies, and the development of land resource management is the basic requirement of national modernization and the inevitable trend in the country, and because land resource management covers a large amount of information involving a wide range of information, including information within the scope of work, it is very necessary to ensure the effectiveness and accuracy of land resources and information. The information system can effectively improve the efficiency and accuracy of land resources and information. Information system can effectively improve the development, management, research, and use of land resources; electronic government system can help land resources to obtain accurate analysis and research and detailed access to the ability to understand the status of resources, in the daily changing data information dynamic understanding of the development of information changes, and grasp the latest trends in land resources, the trend of analysis, and monitoring of market resources, to provide customers with reliable decision support. It is a powerful background data guarantee for customers to provide reliable decision support.

scholarly journals Modeling of Stochastic Temperature and Heat Stress directly underneath Agrivoltaic conditions with Orthosiphon Stamineus Crops Cultivation

2020 ◽  
Author(s):  
Noor Fadzlinda Othman ◽  
Mohammad Effendy Yaacob ◽  
Ahmad Suhaizi Mat Su ◽  
Juju Nakasha Jaafar ◽  
Hashim Hizam ◽  
...  
Keyword(s):  
Heat Stress ◽  
Ambient Temperature ◽  
Large Scale ◽  
Common Ground ◽  
Clean Energy ◽  
Bottom Surface ◽  
Land Resource ◽  
Orthosiphon Stamineus ◽  
Wide Range ◽  
Cooling Mechanism

This paper shares some new information on the ambient temperature profile and the heat stress occurrences directly underneath ground-mounted Solar Photovoltaic (PV) Arrays (monocrystalline-based) focusing on different temperature levels. A common ground for this work lies on the fact that 10C increase of PV cell temperature results in reduction of 0.5% energy conversion efficiency thus any means of natural cooling mechanism would gain much benefit especially to the Solar Farm operators. Transpiration process plays an important role in the cooling of green plants where in average it could dissipate around 32.9% of the total solar energy absorbed by the leaf making it a good natural cooling mechanism. This condition is relatively applied for herbs specifically for this project, Orthosiphon Stamineus or generally known as Java Tea are used as the high value crops. The thermal process via convective heat and mass exchange of leaves with the environment is relevant for a better understanding of plant physiological processes in response to environmental conversion factors for a wide range of applications. An important fact for plant heat stress with respect to the Ambient temperature is that the range lies between 10 C to 15 C above the surrounding value. This heat stress condition is relatively important and should be modelled in crops-energy integration. Agrivoltaic concept is a system that combines commercial agriculture and photovoltaic electricity generation in the same space. The concept is in line with the Kyoto Protocol and the United Nation Sustainable Development Goals (UN-SDG) which highlights the clean energy and sustainable urban living. The integration of agrivoltaic systems would optimize the yield, improving clean system efficiency and solving the issue of land resource sustainability. The PV bottom surface temperature are the main source of dissipated heat as shown in the thermal images recorded at 5 minutes interval at 3 sampling time. Statistical analysis shows that the Thermal correlations for transpiration process and heat stress occurrences between PV bottom surface and plant height will be an important finding for large scale plant cultivation in agrivoltaic farms.

Electron microscopy study of reactively sputter-deposited Ti/N films on silicon

1992 ◽  
Vol 50 (2) ◽  
pp. 1362-1363
Author(s):  
V. C. Kannan ◽  
A. K. Singh ◽  
R. B. Irwin ◽  
S. Chittipeddi ◽  
F. D. Nkansah ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Large Scale ◽  
Hexagonal Phase ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Process Conditions ◽  
Tin Films ◽  
Wide Range ◽  
Fcc Phase ◽  
Circuits Vlsi

Titanium nitride (TiN) films have historically been used as diffusion barrier between silicon and aluminum, as an adhesion layer for tungsten deposition and as an interconnect material etc. Recently, the role of TiN films as contact barriers in very large scale silicon integrated circuits (VLSI) has been extensively studied. TiN films have resistivities on the order of 20μ Ω-cm which is much lower than that of titanium (nearly 66μ Ω-cm). Deposited TiN films show resistivities which vary from 20 to 100μ Ω-cm depending upon the type of deposition and process conditions. TiNx is known to have a NaCl type crystal structure for a wide range of compositions. Change in color from metallic luster to gold reflects the stabilization of the TiNx (FCC) phase over the close packed Ti(N) hexagonal phase. It was found that TiN (1:1) ideal composition with the FCC (NaCl-type) structure gives the best electrical property.

Humus state of chernozem at different ways of tillage in the agrosystems of the left-bank forest steppe of Ukraine

2015 ◽  
Vol 2 (3) ◽  
pp. 61-77
Author(s):  
O. Demydenko ◽  
V. Velychko
Keyword(s):  
Soil Cover ◽  
Forest Steppe ◽  
Left Bank ◽  
Energy Reserves ◽  
Soil Resources ◽  
Global Soil ◽  
Humus Accumulation ◽  
By Products ◽  
The Way

The contemporary condition of soil cover in Ukraine is characterized. The attention is focused onto widespread degradation processes in soils. The causes that determine the development of these negative processes are considered. The contemporary informational support for the condition of soil cover in Ukraine is estimated. In general, the current available information is of narrow-departmental nature, obtained by different methods and non-correlated monitoring programs. As a rule, it is stored in under-structured databases, incompatible with other information systems; mainly recorded on paper media unusable with modern technologies, whereby such information resources are diffi cult to be compiled together. These disadvantages are strong constraints against consistent usage of materials for evaluation, forecast and management of changes in the soil cover. The Soil Observation program should thereby be combined with Agrochemical Passportization and ecology-ameliora- tive monitoring; in other words, the application of innovative soil-agrochemical methodology is considered. Each individual type of surveys shall complement the others, and taken altogether, they shall constitute a con- sistent Information System, capable of solving the problems of assessing the condition, forecasting, manage- ment, usage and protection of soil resources. The monitoring procedures should be conducted on the basis of a new soil concept in line with unifi ed programs and methods, so as to meet European approaches to the maxi- mum extent. Such a technical composition enables getting information on present-day processes in soils, and is the only combination that actually helps us to “ecologize” our knowledge of soils, which is the leading trend in the scope of global soil-science. Thus obtained results will serve as a State-owned tool which would subse- quently facilitate the use and protection of soil resources all over the country, to be involved in a united global soil-information scope. The attention is focused onto social signifi cance of the information on soils and their fertility in terms of land resources optimization, as well as the formation of sustainable land use in Ukraine. Aim. To demonstrate the long-term effect of different ways of tillage of typical low-humus chernozem on the change in humus content and composition and the direction of transformation processes of organic fertili- zers. To study the changes in the structure of energy reserves in group and fractional composition of humus in typical low-humus light-loamy chernozem of the Forest-Steppe of Ukraine. Methods. Field, laboratory, microbiological, computational, mathematical and statistical. Results. It was determined that in conditions of long-term subsurface tillage the most effi cient humus accumulation occurs in the 0–20 cm layer of chernozem with simultaneous increase in its content in the lower part of the processed layer without any accumulation differentiation. Surface tillage leads to expressed differentiation in humus accumulation in the 0–20 cm layer of soil (0.005 % per year). When 6 t/ha of humus are replaced by 7 t/ha of by-products the intensity of humus accumulation is decreasing regardless of the way of tillage, but humus accumulation was found to be the most effi cient for subsurface tillage. The application of subsurface tillage leads to the increase in the ratio of C HA : C FA , which is conditioned by the increase in the humifi cation of plant remains of by-products in the 0−20 cm layer of soil by 110–112 % – for subsurface tillage, and by 105 % – for surface tillage. Conclusions. It was established that systematic subsurface tillage of typical chernozem of the Left-Bank Forest-Steppe of Ukraine leads to the structuring both of the total reserves of energy С org , and its quality content, aimed at the increase in the intensity of the processes of humifi cation and accumulation of organic carbon, and the decrease in miner- alization. The ratio of energy reserves С org of humic acids to fulvic acids in the 0−30 cm layer of chernozem is 1.85−1.87 regardless of the way of tillage, which testifi es to the repeatability of humus accumulation, but the total reserves of energy С org was higher for subsurface tillage (+ 31 Teracalorie/ha) compared to deep plough- ing. As for the surface tillage, the energy enrichment was at the level of deep ploughing.

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