bluuebunny/crossref_metadata_2025 huggingface dataset:
Animated media design based on visual basic application microsoft powerpoint on the material build flat side spaces
Authors: Rohaeti E E , Putra H D , Purwandari A S
Published: October 2020

Students still have difficulty in understanding the material to build flat side spaces, so it needs innovative learning designs as a solution. One of the innovative learning designs is animation media based on microsoft powerpoint basic visual application. This research method is research and development through the stages of determining the potential and problems, data collection, animation media design, animation media initial design, animation media design validation, animation media trial, animation media revision, and final animation media. The research subjects were students of one class in one of the junior high schools in Cimahi. The research instrument used validation sheets and student response sheets. Validation was carried out by 3 experts namely a mathematics education lecturer who understood the visual basic application and 2 mathematics teachers who were experienced teaching. The results of expert validation from a lecturer on animation media obtained good criteria on the effectiveness indicators of the use of animated media, language, sound, and visuals, while on the consistency indicators the use of symbols obtained very good criteria. Validation of two mathematics teachers to the presentation of material in the overall animation media obtained criteria both on the indicators of relevance of learning objectives, the truth of the concept, and the presentation of the material. Student responses to the use, appearance, and presentation of animation media material as a whole are in good criteria.
Commognitive analysis of the solving problem of logarithm on mathematics prospective teachers
Authors: Halim D , Nurhidayati S , Zayyadi M , Lanya H , Hasanah S I
Published: October 2020

This study aims to describe the commognitive analysis of the solving problem of logarithm on college students of Mathematics. This type of research is a qualitative description. The research subjects were three college students of Mathematics Education from Universitas Madura. The instruments used in this study were mathematical problem sheets and semi-structured interviews. The results of this study show that college students have many differences in working or mistake in mathematics problem-solving. In the word use or use precise words to inform the comprehension, the students have differences in writing base, degree of the numeral, or other symbols. In the visual mediators or use of precise object or media, the students have differences in the premise of working logarithm. In the narratives, students have differences in solving the problem systematically based on comprehension of logarithm form. In the routines, students have differences in understanding the basic concept of logarithmic characteristics.
Introducing statistical inference to senior high school students: a textbook analysis
Authors: Setiawan E P
Published: October 2020

Statistical inference is a new concept for students in senior high (secondary) school in the 2013 curriculum. This study analyses how Indonesian mathematics textbooks for the 12th-grade senior high school present this concept. The method used here is content analysis, i.e., examine five books written by different authors and publishers. We find that almost all textbooks start with the explanation of random variables, followed by the binomial distribution, the normal distribution, and hypothesis testing. However, there are some differences in the depth of the materials among these textbooks. Although those textbooks explain the hypothesis testing, almost all books do not explain the sampling distribution, which is the foundation of inference. This study can be used as a guide to strengthening the explanation of statistical inference in mathematics textbooks as well as in developing statistical inference teaching strategy.
A measurement model of technological pedagogical content knowledge (TPACK) in Indonesian senior mathematics teachers’ scenario
Authors: Yanuarto W N , Maat S M , Husnin H
Published: October 2020

The TPACK is one of the primary knowledge for teachers understanding technology in the era of the industrial revolution 4.0. In education, teaching technology in the classroom can apply by looking at the TPACK stages teachers have. Teachers who have high stages in TPACK will facilitate their steps and movements in exploring technology in the classroom. This study aims to validate the TPACK measurement model, which consists of 30 items. A quantitative method of the cross-sectional survey is applied in this study. We used the questionnaire for gaining the data. TPACK instruments were distributed to 235 respondents. The analysis of this TPACK measurement model testing uses exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). All constructs revealed acceptable internal consistency reliability. A good model fit found for measurement models of TPACK using several fit index tests like CMINDF, GFI, CFI, TLI, and RMSEA. The findings showed that all fit indices criteria were fulfilled. It is concluded that the TPACK measurement model pictures the TPACK level of the senior mathematics teachers in the Indonesian scenario.
Mathematics critical and creative thinking skill of student to solve Numerical Methods problems based on strength typology
Authors: Happy N , Endahwuri D , Chakim M M L
Published: October 2020

Talent is a special or more dominant potential or ability possessed by someone who can develop through an intensive training or education process. Strength Typology 30 (ST30) views talent as the role of individuals who have eight clusters, namely: Servicing, Thinking, Reasoning, Elementary, Networking, Generating Idea, Technical, and Headman. This research aims to describe how mathematical creative and critical thinking abilities of students who have dominant talent in cluster thinking, reasoning, and generating ideas. The instrument used in this research was a talent assessment (ST-30) through temubakat.com and a mathematical critical and creative thinking skill test on Numerical Method problems. In this research, one research subject was chosen who has dominant talent in the 3 clusters. The dominant talents of subject CLC in the cluster of thinking, reasoning, and generating ideas are Analyst, Strategic, Creator, and Synthesizer. The results showed that CLC subjects had good mathematical critical, and creative thinking skills. He can conduct all aspects of critical thinking skills (focus, reason, inference, situation, clarity, overview) and aspects of creative thinking ability (fluency, flexibility, originality) in solving Numerical Method problems.
Mathematics learning of trigonometric triangles in vocational high school using online media
Authors: Asfyra I B , Zulkardi Z , Putri R I I , Hartono Y
Published: October 2020

This research is a descriptive qualitative study that aims to describe the learning of trigonometric triangles using online media in class X students of SMK Negeri 6 Palembang. Information assortment methods use screen recordings of Zoom application, observation, and interviews. Screen recordings are carried out to observe student activities during the learning process and compare them with observation sheets and interview sheets. Meanwhile, the test instrument is utilized as supporting information to see understudy learning results after learning the wide trigonometric triangle in general. The outcomes indicated that during the learning process that lasted for two meetings, students could follow well throughout all stages of learning and get outstanding outcomes.
The 3P model with lesson study for learning community (LSLC) in the professional development of mathematics teachers on three-dimensional shape material
Authors: Rusiyanti R H , Zulkardi Z , Putri R I I
Published: October 2020

There have been many government policies to improve the quality of teachers. However, the results of the 2017 Teacher Competency Test (UKG) show that the national average professional ability is at 55.91 and the national average pedagogic ability is at 50.71. This shows that all these scores are below the minimum standard, namely 70. In the process of learning Mathematics in schools, the quality of teachers must be continuously fostered. Therefore, this study aims to develop the professionalism of high school mathematics teachers, through the 3P Model (Training, Guidance and Assessment) with the Lesson Study For Learning Community (LSLC) system. This study involved 25 teachers from four high schools in Palembang City. This research uses two types of design research, namely development studies and validation studies. The result of this research is a learning environment using the 3P model (Training, Assistance, and Assessment) with the LSLC system. So that with the 3P model and the LSLC system can be a bridge that connects teachers by focusing on learning strategies in improving professional and pedagogical mathematics teachers comprehensively. These results show a significant increase in the professional development of mathematics teachers in the city of Palembang.
Mathematical critical thinking ability and students’ confidence in mathematical literacy
Authors: Pratama M A
Published: October 2020

The progress of learning in the current era emphasizes students to have critical thinking skills, be able to implement real-world knowledge, master information technology, communicate and collaborate. One of the skills needed to achieve this goal is mathematical literacy. Therefore, it takes cognitive and affective abilities that are able to develop mathematical literacy skills, namely mathematical critical thinking ability and self-confidence. Students with good mathematical literacy skills will easily solve problems that occur in everyday life. This article examines some of the literature on mathematical critical thinking, self-confidence, and its connection to mathematical literacy.
Developing mathematics module of Kapita Selekta course based on higher-order thinking skills for high school
Authors: Karimah S , Hidayah N , Utami U
Published: October 2020

Higher-order thinking skills can be seen through Bloom’s taxonomic cognitive level. The cognitive level in Bloom’s taxonomy includes analysis, evaluation, and create. In the Kapita Selekta Pendidikan Matematika 2 course that deals with high school mathematics material, pre-service teachers are expected to be able to master higher-order thinking skills. With the HOTS-based mathematics module for high school it can help the pre-service teacher in compiling questions. The results of the research development of HOTS-based mathematics problem modules are included in the valid category. It means that students of Mathematics Education at Universitas Pekalongan in the subject of Kapita Selekta Pendidikan Matematika 2 can use HOTS-based mathematics modules.
The use of mobile learning at SMP Negeri 3 Karawang Barat in improving students’ mathematical representation ability
Authors: Hakim D L , Herman T , Kartasasmita B G
Published: October 2020

The mathematical representation ability is a mathematically visual image either in a person’s image, symbol, or expression, which is a mental picture of himself in learning mathematics. Many concepts of abstract mathematics lessons sometimes make students do not understand what they are learning, therefore the ability of mathematical representation is needed when students learn math. In growing the ability of mathematical representation, it is necessary an appropriate learning so that students can visualize it, namely using mobile learning. Mobile learning is a teaching learning activity that utilizes information and communication technology that refers to mobile handheld devices through mobile devices such as mobile phones, smartphones, tablets, personal digital assistance (PDAs), notebooks and netbooks, with availability teaching materials that can be accessed at any time as well as interesting and interactive material visualization in it. The results show that students using mobile learning achievement of representational ability is better than students who use conventional learning.
Application of Field-Map technology for vegetation assessment in Saint Petersburg
Authors: Antonov O I , Izotova T V , Djikovich Yu V , Shepeleva O P , Chasovskaya V V
Published: October 2020

Annotation. This paper discusses the use of Field-Map technology. It has been established that the use of Field-Map technology requires significant changes in the structure of work: first of all, it is necessary to change the structure and content of such documents as the object’s passport, registry of green spaces, etc. Inventory of objects using the Field-Map technology will expand the number of indicators in the passport objects and registers of green spaces, which will affect the cadastral valuation and damage assessment from the demolition of vegetation.
Soil formation features of Andoma geological section
Authors: Bogdanova L S , Shepeleva O P , Hrustalev R A , Yakovlev A A , Sergeeva A S
Published: October 2020

Andoma geological section is a unique natural monument. A feature of this territory is colors diversity of parent rocks, granulometric composition and agrochemical characteristics. The soil landscape of Andoma section is not well developed due to strong erosion processes. Soil formation is at the initial stages in some areas so that Andoma geological section is an excellent scope. The study of this research will allow a better understanding of the differences in the soil formation process on different mother rocks.
The effect of meteorological factors on the annual increment of spruce (Picea abies (L.) Karst.) growing on double layer soils
Authors: Chudakov A V , Danilov D A , Zaytsev D A , Belyaeva N V
Published: October 2020

The present work analyzes the effect of temperature and precipitation in the growing season on annual increment and structural elements of spruce xylem. The objects of study were stands aged 100-120 years with different spruce proportion, restricted to soils of binary genesis that allowed levelling out the conditions of growth and determining the main meteorological parameters influencing the increment of spruce wood. The study revealed that, depending on the stand composition, the average temperatures during the growing season have change the effect on the annual increment of spruce wood. In the given soil conditions, the highest meteorological sensitivity in spruce was recorded when its share in the stands was less than 60%. With a decrease in the spruce share in the stand composition, the influence of meteorological factors on macrostructural elements also decreases, but if broad-leaf species are present in the stand, there is an increasing in the influence of weather factors on the increment of wood and its structural elements.
The structure of stands and renewal of the Shorea formation in evergreen forest of Binh Chau –Phuoc Buu Nature Reserve, Vietnam
Authors: Danilov D A , Thi Duong Nguyen , Belyaeva N V
Published: October 2020

This work analyzes the quality of the restored forests with the prevalence of the Dipterocarpaceae family tree species in Binh Chau – Phuoc Buu Nature Reserve, Vietnam. To predict the number of plants in each diameter class, we verified the correspondence of theoretical distributions with an empirical distribution N - D. A theoretical model is best described by an exponential distribution. To establish natural regeneration, we determined the structure of renewed tree species and their relative thickness. The similarity between the composition of renewed plants and the composition of parent plants was determined by the Sorensen coefficient. A natural regeneration of 14 plant species is observed under the canopy of the Shorea formation. The similarity coefficient between the composition of the maternal stratum and renewed plants is 20.3%. This indicates that generations of renewed plants can alter the composition of maternal plants in the upper stratum. The analysis of the distribution structure of diameters and the similarity coefficient between the composition of the maternal tree and the renewed trees showed that the Shorea formation in the Reserve is in the process of succession to achieve a higher hierarchy of environmental stability, i.e., the climax stage.
Analysis of post-fire effects in pine stands in various landscape conditions of the boreal zone
Authors: Danilov D A , Gusev D V , Belyaeva N V
Published: October 2020

The study analyzes the pyrogenic effect on the condition of pine trees in two landscapes of the Leningrad region. The polynomial regression method in the description of the process tree attrition depending on the scorch height on the trunk allowed determining the trend of the thinning process for pine trees in different vitality conditions. The post-fire attrition of trees follows different scenarios in the studied landscapes of the Luga Upland and Putilov Plateau. The correlation analysis showed that the inverse relationship between the thickness of the remaining forest ground cover and the scorch height on trunks, i.e., the intensity of the past fire, is stronger in the landscape of the Putilov Plateau than in the Luga landscape. The studied landscapes created a different environment for the emergence and spread of fires of both natural and anthropogenic origin.
Technological aspects of the development of the automated method of air-photo interpretation of forest stands
Authors: Vagizov M R , Istomin E P , Dobrovolskyi A A , Zhernova A P , Yagotintceva N V
Published: October 2020

The article focused on one of the possible methods for the development of an automated method for interpretation Earth remote sensing data. As the basic elements for solving the problem, the practical experience from forest inventory training system was taken. Authors used the AutoCAD program to perform per-stem decoding. The article describes some features of modern air-photo interpretation system used in forest inventory and the possible transition from classical forest inventory to automated analysing methods.
Characteristics of the transport infrastructure of the Krasnoyarsk territory and its impact on the efficiency of the logging process
Authors: Goryaeva E , Mokhirev A , Medvedev S
Published: October 2020

Forest infrastructure is an important element of economic development of territories. It is impossible to maintain sustainable forest management without forest infrastructure. Forest infrastructure is the basis of the production and non-production spheres. It creates favorable conditions for work and the life of the population. Forest infrastructure has an impact on the economic development of the timber industry connected regions of Russia. In the process of logging the use of forest infrastructure facilities is necessary. At the same time, the transport infrastructure, its condition, and development have a significant impact on the logging process and its effectiveness. The nature of this dependence is of practical interest. The purpose of this research is to evaluate the development of transport infrastructure and its impact on forest harvesting volumes in the forestries of the Krasnoyarsk Territory. The results of our studies allow to make the following conclusions: the structure and density of the forest transport infrastructure of the region is uneven. Its design lacks regularity and validity. The development of transport routes is chaotic. The dependence of the performance indicators of the harvesting process on the density or length of transport routes is ambiguous and it requires further investigation.
Implementation of the Forest Plan of a constituent entity of the Russian Federation, as a key criterion for assessing the effectiveness of the execution of the powers delegated to the constituent entities of the Russian Federation in the use, conservation, protection and reproduction of forest resources
Authors: Gryaznov S E , Sukonkin S E , Orlov S V , Shaitarova O E , Kuzminyh Yu V
Published: October 2020

The article analyses the current methodology and rating criteria for evaluating the effectiveness of the implementation by the subjects of the RF of the delegated powers in the field of forest relations. The features and disadvantages of the current Methodology have been identified. Measures have been proposed to improve the current Methodology in the framework of the modern legislative system of forest relations in the Russian Federation. Based on the analysis of the current Methodology, we recommend to strengthen the role of indicators of the Forest Plan of constituent entities of the RF. When developing the Forest Plan of a constituent entity of the Russian Federation, the climatic and socio-economic characteristics of each specific region should be taken into account, which ensures the comparability of all constituent entities of the Russian Federation for each of the Criteria. A method of comparing the actual achievement of the criterion with its planned value, used in forest planning, makes it possible to objectively evaluate the effectiveness of the execution of delegated powers, taking into account the capabilities of a subject of the Russian Federation in question. When comparing the current and recommended methods, significant discrepancies were revealed in the results of evaluating the effectiveness of the implementation by the subjects of the Russian Federation of the delegated powers in the field of forest relations. According to the results of the rating assessment between all constituent entities of the RF, only four of the twenty constituent entities of the Russian Federation maintained their position in the group of leaders.
Alluvial soils of the Gulf of Finland. Composition, properties, and suitability for creating green spaces
Authors: Kapelkina L , Melnichuk I
Published: October 2020

In Saint-Petersburg and its surroundings land reclamation works by hydraulic filling have been performed for several decades. For the hydraulic filling fine-grained slightly silted and clayed sands from the bottom of the Gulf of Finland are used. We have examined the properties of alluvial soils as substrate for planting, figured out unfavorable hydrophysical features of the soils related to soil fractionation caused by water flows while hydraulic filling, which, in their turn, have negative impact on preservation and growth of vegetation. We have given examples of measures on melioration of soils, at the same time having taken into consideration their features while the design performance and working on creation green spaces on the alluvial soils.
Using space syntax measures to assess the human impact on ground cover plant communities in recreational forests
Authors: Kryukovskiy A , Kupriianova A , Melnichuk I , Smertin V
Published: October 2020

This study used space syntax theory to predict the recreational impact on natural forest ecosystems. We assumed a correlation between specific space syntax measures and parameters that describe the recreational impact on forest ecosystems. For constructing a model of spatial structure of recreational forest, we chose an angular segment map of a road network. Most of the recreational impact is caused by trampling which we used to evaluate the visitors traffic. Field observations of ground cover were made on transects. For the road network we used the natural logarithm of the T1024 Choice measure, called LNchoice, and divided the range of values into two subsets. The subset ‘zone 0’ included segments where LNchoice was lower than the mean value of LNchoice, while the subset ‘zone 1’ included all other segments. Comparative analysis of the field data and indicators of the road network confirmed that zone 1 had higher trampling impacts than zone 0. In zone 1, degree of coverage by typical forest plants and their degree of dominance were lower than in zone 0, and the percentage of dead ground cover was greater. These results show that space syntax theory has great potential for landscape design and management of recreational forests.
Analysis of the mechanism dissipation of mechanical energy flow in adiabatic throttling incompressible liquid
Authors: Kulikov A , Ivanova I , Spiridonov S , Martynov B , Krivonogova A
Published: October 2020

The differences arising in the analysis of the throttling process in different reference systems are considered. It is shown that it is convenient to analyze the change in internal energy when throttling a certain volume of gas in a system of counting that is rigidly connected to its center of mass. In this system, gas expansion works, resulting in energy being diverted to the environment. At the same time, energy is transferred from the environment to the gas by the movement of the throttle device. The sign of the increment of the internal energy of the considered volume of ideal gas in the non-equilibrium process adiabatic throttling is determined by the ratio between the two named energy exchange processes. From the first law of thermodynamics, an expression is obtained for the value of the increment of specific internal energy when throttling an ideal gas.
Thermodynamic analysis of changes the internal energy of an ideal gas under adiabatic throttling
Authors: Kulikov A , Ivanova I , Spiridonov S , Martynov B , Krivonogova A
Published: October 2020

The analysis of the irreversible process of adiabatic throttling of an incompressible liquid using the construction of physical and mathematical models of the process is carried out. The nature of irreversible dissipation of mechanical energy in the fluid flow is revealed. An analytical expression is obtained for the always positive so-called specific heat of friction, the value of which depends on the nature of the flow. This value can be equal to zero only in the case of a vortex-free or helical movement. Therefore, only with such movements, the mechanical energy of the flow does not dissipate.
Forestry development as an instrument for implementing the climate policy of Russia
Authors: Kuzminyh Yu V , Gryaznov S E , Shaitarova O E , Sukonkin S E , Yu Abakulina L
Published: October 2020

The Paris Agreement is the legal basis for the current stage of regulation of greenhouse gas emissionsaimedat preventing further climate change. The Russian Federation has declared its national climate commitments taking into account the carbon absorption capacity of forests. It has been established that the current stage of development of the national economy is accompanied by an increase in greenhouse gas emissions, which will require additional measures to implement Russia’s climate policy. The article assesses the contribution of the Russian forestry to the fulfilment of the national obligations under the Paris Agreement. A negative tendency towards reduction of carbon sequestration in Russian forests has been revealed. As the main factors influencing the dynamics of greenhouse gas emissions and their absorption in the forest ecosystems, the study identified forest fires, logging activities and the scale of reforestation. The article substantiate the expediency of the development of forestry as a condition for the implementation of the climate policy of both the country as a whole and its business entities. By implementing forest projects aimed at compensating for greenhouse emissions, representatives of the Russian business will be able to avoid the risks of losing the investment attractiveness of their enterprises and reducing the competitiveness of their products in international markets.
Economic priorities of the strategic planning of forest sector in the Russian Federation
Authors: Lobovikov M , Pryadilina N
Published: October 2020

Branch and regional prioritization of the forest sector is a necessary condition for its development and compatibility growth. It allows toplan and forecast the forest management activities and their allocation across the country. Strategic planning and forecasting should use the following methodology. Firstly, it is necessary to rank the priority branches of the forest sector according to the criterion of their income (for example, wooden housing construction, packing paper, furniture, bioenergy, etc.). At the next iteration, economic regions are to be ranked according to the transportation cost criterion (for example, North-West, West, Center of Russia, Siberia, the Far East etc.). Merging both iterations in a single matrix will show the direction of diminishing effectiveness of the managerial solutions. The most effective solutions will be in the upper left corner of the matrix. The least effective solutions will move to the lower right corner. This matrix should serve a conceptual basis of the methodology for the long-term strategic planning and forecasting of the forest sector in the Russian Federation.
The problem of integrity in the context of quantitativistic and qualitativistic research programs competition in biology
Authors: Lubomirov D E , Petrov S O , Sapenok O V
Published: October 2020

The article considers the role of biological knowledge in the formation of modern holistic worldview, developed in the framework of global evolutionism, which has been established within the post-nonclassical scientific rationality. The studies of material in the history of science and the history of philosophy, as well as the works of modern authors, revealed the existence of contradictory quantitative (quantitativistic) and qualitative (qualitativistic) research programs in the development of knowledge and its worldview interpretations, which alternately claimed to dominate in science. On the basis of retrospective analysis of the science of living it is shown how the development of a qualitatively-holistic approach in biology helped to overcome the principles of reductionism and to what extent it can contribute to the introduction of significant adjustments to its methodology. The authors made an attempt to identify and justify a special role in this process of evolutionary and environmental studies, which serve as the basis for the formation of new promising theoretical and methodological programs based on the principle of integrity. The scientific novelty and relevance of the article consists in explicating on the biology material the heuristic and methodological significance of qualitativism as a cognitive-methodological approach in comprehending biological processes.
Development of a conceptual GIS model to support management decision making
Authors: Petrov Y , Istomin E , Stepanov S , Sidorenko A , Vagizov M
Published: October 2020

Making (identifying) the right decision, just making a decisionis a choice from a variety of acceptable alternatives, depending on various factors, one in which the effective value is optimized. If a decision maker (DM) or a decision support system (DSS) can isolate a control parameter with unconditional preference that is relevant and most fully characterizing the properties of the system (process, object), it can be considered an objective function, subject to certain restrictive (by an acceptable set, resources) conditions. A similar problem is single-criterion, solved by classical methods of the decision theory. Decision-making tasks can be solved by a sequence of steps, a procedure: generation of acceptable options, selection of relevant criteria, search for an acceptable choice, its evaluation. In solving the problems of the decision support system (DSS), the decision-maker is usually involved - an expert, an analyst with competencies in the subject area and evaluating options, a consultant who helps to formulate acceptable options. The article discusses the development of a conceptual model of a geographic information system to support managerial decision-making. The basis of such GIS is an automated mapping system.
Economic estimation of forest recreation
Authors: Petrov V , Bogatova E , Filinova I
Published: October 2020

The population’s demand for recreational services tends is growing steadily, the amount of growth varies depending on objective and subjective factors. The problem of economic assessment of forest recreation can be solved only after the recognition of recreational services and their inclusion in the economic relations between the state, the population and private business. Economic estimation of the recreational function of forests will help to scientifically justify the amount of damage to be compensated for damage caused to forests by industy, institutions, organizations and citizens. Recreational function can be attributed to natural resources, since it has a potential value. In market conditions, it is the final consumer of recreation-the population-that should evaluate the recreational function. The size of this theoretical payment revealed in the course of the study allows us to judge the value that the recreational function of forests represents for the state and the population. The inclusion of recreational services in economic relationships will allow to get an independent and objective estimation of the recreational function of forests.
Potential and market demand for food and non-timber forest products of the Russian forest
Authors: Petrov V N , Katkova T E , Dzhikovich Y V
Published: October 2020

Research of the food and minor resource potential of the Russian forest and market demand for these products has been done in the article. The objective of the work is to show an imbalance between the huge potential of food and other non-timber products and the limited demand for such resources. The subject of study is economic results of food and minor resources consumption of the Russian forest. The novelty of the research is that regularities are identified and development trends of demand for food and secondary resources of the Russian forest have been assessed. The demand is formed by supply and demand, on the one hand, by the national management system, forest legislation, traditions and customs, on the other. Harvesting centers of food and secondary resources of the Russian forest are shown. Measures are proposed to increase the efficiency of the use of food and minor resources of the Russian forest. The research results can be used by forest companies, scientific organizations. The research can be continued towards the inclusion of food and secondary resources of the Russian forest in the economic relations system in forestry at national and international levels.
Application of the Field-Map software and hardware complex for creating GIS of urban green spaces and Botanical gardens collections
Authors: Repetskaya A I , Petlukova K A , Tabunshchik V A , Vishnevski S O , Savushkina I G
Published: October 2020

The possibilities of the use of geoinformation systems (GIS) for green areas managing were discussed. The features of the use of the Field-Map software and hardware complex on landscape architecture objects are given. Field-Map allows you to perform mapping of any object in real time, estimate distances and areas, create thematic maps, perform dendrometric measurements, i.e. use all the features of a full-featured GIS directly when working in the field. The GIS of urban garden and park objects on the example of the city of Simferopol (the Republic of Crimea) were demonstrated. It seems promising to perform a planned inventory of urban green spaces of municipalities with mandatory GIS of plants collections of introduction points can contain an unlimited number of attributes, which allows to enter into a single database information on the time, origin and sources of receipt of the plant sample, the type of planting material, estimation of frost resistance, drought resistance, disease and pest infestation, the beginning and duration of flowering or fruiting, the period of greatest decorative effect, and other features. The work on creation of GIS arboretum and scientific exhibitions were conducted in N V Bagrov Botanical garden of the V I Vernadsky Crimean Federal University.
Analysis of honey productivity of robinia (Robinia pseudoaca-cia L.) plantations in forest vegetation conditions of the steppe don region
Authors: Samsonova I , Mannapov A , Khisamov R , Plakhova A , Sattarov V
Published: October 2020

Robinia (Robinia pseudoacacia L.) is known for high honey productivity: in Ukraine, in Romania it is 600-800 kg, in Nonblack soil area it is up to 360 kg from 1 ha of a continuous forest stand.According to observations of the scientists, a bee family can collect up to 8 kg of honey under favorable weather conditions from a Robinia tree, and under adverse weather there were from 4 to 6 kg of Robinia honey in strong families at the apiary.The task of our study was to determine honey productivity of Robinia depending on locality, exposure and the slopesteepness. Optimum forest vegetation conditions for maximum nectar emission by Robinia flowers were defined. A number of methods defining taxation indices, sugar content in nectar, blooming intensity and honey productivity was used to solve the assigned tasks. Carried out comparative analysis of honey productivity indices showed that local topography influences the blooming terms of plants and nectar emission. So, the most productive locality for beekeeping is locality with gulches. It provides the best honey yield under favourable meteorology and forest vegetation conditions.
Investigation of the influence of certain factors on the quality of processing during hard grinding
Authors: Sergeevichev A , Belonogova N , Sergeevichev V , Byzov V , Mikhailova A
Published: October 2020

The surface roughness of wood products has a direct impact on many technological and operational properties of parts as a whole and is an important production factor, which is associated with the consumption of materials and the technical and economic efficiency of many technological operations such as gluing, grinding, varnishing, etc.We must not forget about the aesthetic properties of wood - reflective and absorbing ability, which is directly affected by surface roughness. The urgency of the problem of obtaining the required quality of the treated wood surface is now becoming increasingly important in connection with the increasing requirements for the quality of woodworking products and obtaining the greatest economic effect for the enterprise. A polished surface is formed as a result of the simultaneous action of many factors. The main ones are geometric factors, plastic and elastic deformations that accompany the grinding process.From a geometric point of view, the roughness is created due to the copying of the path of the cutting tool of a certain geometric shape on the wood surface. Plastic and elastic deformations occurring during the cutting process strongly distort the microrelief resulting from the action of geometric factors.
The condition of green spaces in the central part of the city of Yekaterinburg
Authors: Srodnykh T B , Vishnyakova S V , Luganskaya S N
Published: October 2020

The article deals with the availability of public green spaces in the city of Ekaterinburg and itsCentral Planning District. We discuss the composition, condition of plants, and planting density in parks, garden squares and boulevards. We also discuss the negative phenomena affecting the general condition of green areas and their functions. We have analysed the main species used in landscaping and made suggestions for improving the situation.
Interactive electronic technical manuals as a means to improve efficiency of operation of complex technical systems
Authors: Trofimov A V , Sokolova V A , Markov V A , Zatenko S I , Taraban M V
Published: October 2020

The article describes the use of interactive electronic technical manuals (IETM). One of the tools for implementing the requirements of the S1000D standard is the editor of interactive electronic technical manuals Seamatica. The editorial staff of Seamatica Enterprise implements the full range of IETM development activities. The pace of introduction and quality of interactive manuals in industrial engineering are clearly unsatisfactory. The article discusses the main reasons for a limited application of interactive manuals in industrial engineering, such as the lack of education in IETM-related topics for specialists in forestry machines operation.
Biological and economic features of the ‘Voronezh Giant’ hybrid poplar
Authors: Tsarev A P , Tsareva R P , Laur N V , Tsarev V A
Published: October 2020

The purpose of this publication is to generalize the available experimental data on the survival, growth, stability, technical and other characteristics of this hybrid and to clarify proposals for its practical use. Long-term studies have been carried out on the five variety testing sites in various soil and climatic zones of the South-Eastern part of Russia and in Ukraine. The survival rate of this poplar were quite high (from 75 to 96%), on average 81%. The age of economic exploitability in the forest-steppe zone with a 20 m2 feeding area per tree was equal to 29 years. To this age the ‘Voronezh Giant’ accumulated stem wood stock of 550-640 m3/ha. The duration of shoot growth was 146 days, and the growing season was 177 days. It was distinguished by high winter hardiness, relative drought resistance, wind resistance, low damage by primary and secondary entomopests, and affection with phytodiseases, but a low straight trunk. It has a fairly high timber density, the length of the wood fiber and the cellulose content, which is important for the pulp and paper industry. The freshly picked green leaves of this poplar are close to the nutritional value of meadow herbs and lucerne. In general, the poplar ‘Voronezh Giant’ is promising for growing wood pulp, introducing into energy, shelter-belts, roadsides, riversides and other reclamation plantings. Given into account its male gender and high decorativeness, it can be also recommended in the greenery landscaping.
The role of hunting enterprises in forest exploitation
Authors: Vysochina M V , Sulyma A I , Chernogorova K A
Published: October 2020

Global environmental changes and increased consumption of forest resources require special attention to forest exploitation. The relevance of studying the role of forest hunting in solving the problems of exploitation and regeneration of forest resources is justified by the need to switch to sustainable forest management, increase the biological stability and productivity of forests, strengthen water and soil protection, and ensure sanitary, recreational and other benefits of forests. The article substantiates that the future development of forestry should be based on the principles of sustainability; that is, in the process of regeneration and development of forests, environmental, economic and social goals should be taken into account. We have formulated the tasks and the role of forest hunting enterprises in forest exploitation. As structures engaged in integrated economic activity, forest hunting enterprises, with a rational approach, are able to reduce the risks of forestry activities and ensure environmental, economic and social effects. We have clarified that these effects can only be obtained if the balance between environmental, economic and social components of the sustainable development model is ensured. We have formulated the basic conditions that will allow forestry enterprises to carry out their tasks with maximum efficiency.
Precise technologies in forestry: problems and prospects
Authors: Yachmeneva V M , Antonova A A , Pozharitskaya I M
Published: October 2020

The paper highlights features of transition from traditional to precision forestry. The transition results are: selective cultivation and cloning of seedlings; specific fertilizer treatment; digital forest inventory; fully mechanized logging of trees; early fire detection. It has been established that the high-precision forestry system includes such technologies that involve improvement of the forest management system, providing tighter operations control and improved data collection; increasing recipes selectivity in accordance with a geographical location; automation of operations, from work in nurseries to forest logistics; Search for optimal solutions using geolocation databases and advanced analytics. According to the McKinsey & Company Research Center, the following promising areas for the development of precision forestry have been: genetics and nurseries; forest management (forestry); logging; wood delivery; value chain. Information and monitoring systems for the forest complex are an important tool in developing an effective forest management policy, and most of the tools and technologies used in forestry are somehow related to remote sensing, GIS technologies and global positioning systems (GPS). The information presented is the basis for intersectoral relations strengthening and can reduce costs of deforestation and illegal logging, forest management and forest fires costs as well as forests mapping costs.
The composition and structure of mature aspen forests in Lisinsky Forestry Unit of the Leningrad region
Authors: Yarmishko V T , Potokin A F , Antonov O I , Ignatieva O V , Kapitsa E A
Published: October 2020

The article addresses the structure of secondary aspen forests, which allows us to predict their productivity, as well as evaluate the features of the formation of the main types of taiga forests. We carried out an analysis of the vitality structure, which forms a basis for forest monitoring. All higher vascular plants, as well as ground, epiphytic and xylophytic species of mosses and lichens were also identified to assess the biological diversity of the stands studied. The study has established that the species diversity of the ground cover in aspen forests depends on the degree of the crown density.
Reconstruction of cultural and leisure buildings of the Soviet period
Authors: Chechel I N , Mikhailova I D , Chechel I P
Published: October 2020

In Russia there is an impressive fund of Soviet heritage objects of cultural and leisure activities of population. The most massive construction of club establishments was in the 1960s-70s in the USSR. Today the cultural houses in Russia are undergoing dramatic changes. Not all existing buildings are of architectural value, while they are often structurally safe, proved their value in practical operation and continue to maintain a working condition, but they are outmoded and in need of reconstruction in different ways. It is found that when carrying out measures for the reconstruction of cultural houses, it is necessary to provide an expanded functional composition of premises for the organization of the leisure of population in accordance with modern requirements. Moreover the reconstruction of existing buildings requires taking into account many factors associated with the increase in loads on foundations, increase in the intensity of use of adjacent territories, work in the space-limited conditions of a construction site and need to modernize engineering communications. The most important are engineering and technical measures related to the examination of the technical condition of the supporting structures, identification of the actual design scheme of the inspected structural element, actual loads and effects to carry out measures to strengthen structures. However, the modernization of the audience halls as the main compositional and space-planning elements of cultural, leisure and entertainment buildings seems is especially important.