bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multicriteria optimization of the dynamics of integrated logistics of the forest industry
Authors: Bazarov S M , Belenky Y I , Aleksandrov V A , Sokolova V A , Soloviev A N 
Published: October 2020

Abstract
Under complex dynamic market conditions, the sustainable development of a coherent integrated spatio-temporal structure of production-transport-consumption is determined by many objective functions, the optimization of which necessitates solving the problem of making a multi-criteria compromise. This problem is solved using a set of the main criteria for technical and economic efficiency: a minimum of cost, a minimum of functional time and space, and a minimum of energy costs. The formulated criteria allow, from a multifaceted perspective, to best structure the material, energy and financial flows in the integrated logistics of the timber industry complex. The article explores the three-step structure of the movement of logistics flows from the forest to the consumer. Mathematical programming determines a discrete set of optimization criteria, on the basis of which a Pareto compromise set is built. On this set, the decision maker formulates a compromise.
Comparative analysis of variability of morphological characteristics of European and Japanese larches with their hybrids
Authors: Bryntsev V A , Lavrenov M A , Vasiliev S B , Savchenkova V A , Nikitin V F 
Published: October 2020

Abstract
Hybridizing European larch with Japanese larch A S Yablokov and M I Dokuchaeva pointed to their better silvicultural and decorative characteristics compared to their parent species. Moreover, E G Bobrov described Larix marschlinsii hybrid as a faster-growing species, he also recommended this hybrid larch for afforestation in many countries. In this study, the vegetative and generative organs of European and Japanese larch hybrids are compared with their parent species. Such characteristics as the cones length, the cones width, the number of scales in the cones and the needles length were considered. A comparative analysis of larch trees DNA was also carried out. As a result of the study, we found that by morphological characteristics, the hybrids occupied an intermediate position between the parent species, except for the length of the needles. The spectra samples electrophoregram of larch total DNA indicated some similarity between hybrids and parent species, meanwhile, hybrids have their own distinctive features.
The effect of meteorological factors on wood macrostructure in mixed pine stands (Pinus sylvestris L.) on different soils
Authors: Chudakov A V , Danilov D A , Zaytsev D A , Belyaeva N V 
Published: October 2020

Abstract
The present work analyzes the relationship between meteorological factors and soil conditions and the annual radial increment of naturally formed pine stands of the boreal zone. It has been noted that on dual sandy loam and drained illuvial sandy loam soils, the annual increment of pine trees has greater response to the sum of temperatures than on loamy soils. Under different soil and hydrological conditions, when the pine share in the composition changes, the structural elements of xylem demonstrate an increasing dependence of annual increment on the share of the species in the composition of the plantation. This dependence is stronger for early wood than for late wood. At coarser soils and decreasing pine share in the stand composition, the growth of pine’s macrostructural xylem elements becomes less influenced by meteorological factors.
Conservation status of conifers in Nam Dong Conservation Area (Thanh Hoa Province, northern Vietnam)
Authors: Huu Nguyen Cuong , Averyanov L , Egorov A , The Bui Doi 
Published: October 2020

Abstract
During the field works 2017 –2019, we collected herbarium specimens of conifers in limestone area of Nam Dong Conservation Area, Thanh Hoa Province, northern Vietnam. They belong to six genera and five families (Cephalotaxaceae, Gnetaceae, Pinaceae, Podocarpaceae, and Taxaceae). Studied species are identified by IUCN Red List as EN (one species), VU (two species), LC (three species), and NT (two species). Three species found in the area are listed in Vietnam Red Data Book (Part II. Plants) and Vietnam Red List as VU. In addition, three species are listed by the Decree 32/ND-CP as IIA (two species) and IA (one species). The paper provides data on distribution of all coniferous species in studied area. The result of the study provides new original information for biodiversity management especially for threatened conifers in Nam Dong Conservation Area.
Forest Vegetation Cover in Tram Chim National Park in Southern Vietnam
Authors: Hung Dang Viet , Potokin A F , Lan Anh Dang Thi , Ha Nguyen Thi , Duoc Em Nguyen Thi 
Published: October 2020

Abstract
Tram Chim National Park is located in the Mekong Delta of southern Vietnam. The obtained results from the study undertaken on the composition of plant species and forest vegetation in TCNP indicated a record of 133 vascular plants species, that belongs to 54 families. Useful plants of 133 species listed consists of 38 species of medicinal plants, 31 species of edible plants, 15 species of timber plants, 10 species of ornamental plants, 9 species of industrial plants, 6 species of fiber plants and 9 species of unknown use plants, respectively. During the duration of investigation, Elaeocarpus hygrophilus Kurz, Eleocharis ochrostachys Steud. and Oryza rufipogon Griff. were endangered, threatened species in the forest vegetation of Tram Chim wetlands. A variety of vegetations in the area under study is described. In this study, two major vegetation types of wetland ecosystems were identified in National Park.
The effect of living ground cover on the development of the young generation of tree species on post-agrogenic lands of the boreal zone
Authors: Danilov D A , Shestakova T A , Shestakova V I , Anders O O , Ivanov A A 
Published: October 2020

Abstract
This study analyzes the influence of living vegetation on the renewal of tree species on post-agrogenic lands. To assess the influence of factors on the development of living ground cover and the renewal of wood vegetation, Ramensky amplitude ecological scales were applied. More than half of the plants in the studied plots are mesophytes and their share in the total projective cover is more than 75%. The emergence of undergrowth of tree species is most influenced by grass. The study shows that the ecological ranges reflect the confinement of the species to certain amplitudes of environmental conditions. A rapid or slow reduction in the abundance of cenopopulation of one or another species is associated with an increase or decrease in the impact of a particular environmental factor. With an increase in the total projective cover of living ground cover, the number of undergrowth is significantly reduced, and vice versa, the formed undergrowth limits the development of the cover vegetation due to advantages in the competition for light, moisture, and nutrients.
The structure of plant communities with the prevalence of the Dipterocarpaceae family tree species in Binh Chau –Phuoc Buu Nature Reserve of Vietnam
Authors: Danilov D A , Thi Duong Nguyen , Belyaeva N V 
Published: October 2020

Abstract
This work analyzes the structure of evergreen rainforests with the prevalence of the Dipterocarpaceae family tree species in Vietnam. Four dominant formations were studied: Dipterocarpus, Shorea, Anisoptera, Vatica. The analysis of the structure of stands with the prevalence of the Dipterocarpaceae family plants was carried out based on the methodology of the stand components’ weight that includes thickness of trees, cross-section and volume of the trunk. The criteria for the analysis included the distribution of trunk diameters (N-D) and heights (N-H). - The species composition of associated plants in the studied formations has different shares. The Shorea and Dipterocarpus formation has the largest number of tree species. For the four dominant plant formations, there are differences in the N / D distribution and no difference in the N / H distribution. The diameter of all trees in the main formations of the Dipterocarpaceae family vary more than the height. Forestry management requires taking into account the structural features of stands with the prevalence of the Dipterocarpaceae family tree species.
The assessment of the feasibility of using the state forest inventory data to implement the national commitments under the Paris Agreement
Authors: Filipchuk A N , Malysheva N V 
Published: October 2020

Abstract
The authors have considered the feasibility of using the measurements of quality and quantity forest parameters on the State Forest Inventory (SFI) permanent sample plots (PSP) for estimating carbon stocks in forests in the preparation of the reports on the implementation of the national commitments under the Paris Agreement. The strengths and weaknesses of the SFI methods for estimating carbon stocks are revealed. The analytic assessment is demonstrated through the example of Khabarovsk Territory in which the SFI was completed in 2018. It is experimentally confirmed that significantly more accurate SFI data on the average growing stock volume, in combination with improved methods for estimating carbon assessment parameters, can increase the estimates of carbon stocks in the forest biomass approximately by +30%.
Effect of thermally treated wood
Authors: Gazizov A , Popova E , Ozden I , Zairov A 
Published: October 2020

Abstract
There are many studies on the thermal treatment of wood, but the treatment of thermally modified wood with different flame retardants, and the changes that occur in this process are not fully understood. This paper assesses various thermal modifications and the flame retardant effect on thermally modified wood under conditions that simulate the natural process of wood combustion by a heat source, constant air flow and exhaust gas flow. The research temperature ranges from 160 to 260° C. It has been experimentally proven that thermally modified wood impregnated with a fire retardant has a greater fire and ignition resistance than untreated wood.
Improving the efficiency of forest use in the Russian Federation
Authors: Gedjo V M , Belenkiy Yu I , Shaytarova O E , Pavlov V S 
Published: October 2020

Abstract
The article discusses practical aspects of forest use in the Russian Federation and identifies the most common forest uses. We propose to increase forest use by harvesting and collection of non-timber forest products, including resin, forest foods and medicinal plants. We also describe the main pathways of utilizing waste from logging and wood processing to obtain products that are in great demand in the market and have a high selling price. Finally, we present the results of the analysis of changes in forest productivity depending on the increase in the number of types of forest use.
Resource evaluation of lower layers of vegetation under the canopy of a beech tree
Authors: Gryazkin A V , Gutal M M , Belyaeva N V , Bespalova V V , Kazi I A , Vu Van H 
Published: October 2020

Abstract
The object of research - new growth and undergrowth under the canopy of growing stocks with predomination of a beech tree as the first and the second storeys. Our work objective - monetization of tree resources deposited with new growth and undergrowth of beech forests of North Caucasus. The structure of the new growth and the undergrowth is not uniform in height and composition, it varies essentially among the subjects of research. The mean number of the new growth is 8988 pcs/ha and of the undergrowth - 1998 exemplars/ha. The mean height of the new growth is 0.65 m, of the undergrowth - 0.86 m. The mass of one plant of the mean height in the air-dry condition is equal to 0.24 kg for the new growth and 0.55 kg for the undergrowth. The income amount from sales of the undergrowth is less than from the new growth. While the maximum total income from sales of the new growth and undergrowth phytomass may be about 43 ths/ha. Final results depend significantly on the structure by height, on the composition and the number of the new growth and the undergrowth.
Study of forest strip systems agrolandscapes structure
Authors: Ivonin V M , Voskoboinikova I V , Yu Matvienko E , Kaklyugina A A 
Published: October 2020

Abstract
The aim of the scientific work is to investigate the forest bands system structure of agrolandscapes with the aim of establishing the duration of periods of its development for determining the main forest species. Research Methodology: complete counting of trees on temporary test plots laid in typical forest belts, analysis of main tree trunks and obtaining equations of relationships between heights and ages; modeling the development of the structure of forest belts using these equations and formulas for determining the distance between forest belts. It was found out that forest lane systems in their development consistently go through certain periods: unsteady, stationary, post-stationary and decaying functioning. The main criterion for choosing the main species when creating forest belt systems is the longest duration of the stationary and post-stationary functioning of the system. For forest strips created from Quercus robur, this duration is 81 years, Fraxinus lanceolata - 63 years; Robinia pseudoacacia - 55 years. According to this criterion, it is not advisable to create forest strips from such main species as Populus nigra and Ulmus pumila on southern chernozems.
Directions For Improving the Efficiency of Forest Clear Cutting on the Territories of Reservoirs and Waterworks Under Construction
Authors: Kalyashov V , Iliin A , Shuvalova S , Leonova O , Shvetsova V 
Published: October 2020

Abstract
The article deals with the issues of increasing the forest resources use extent on the forested areas of reservoirs’ flooded territories of hydroelectric power stations (HPPs) – both projected and under construction- in multi-forest areas of the Russian Federation. The necessity of forest clear cutting and forest clearing carrying out on flooded territories and the importance of these measures for ensuring favorable environmental conditions in the area of hydro construction and in the water area of reservoirs are substantiated. The estimation of the wood volume cut in the process of reservoirs creation is presented and the reasons for leaving wood to be flooded are considered. The factors and circumstances that affect the indicators of economic efficiency of forest clear cutting are described. A comparative assessment of the applied technologies of forest clear cutting is made, ways to increase its profitability are outlined, and the impact of profitability on decision making on leaving wood to be flooded in the process of reservoirs’ territory preparation is estimated.
Universal tractor processor for working in forests of different ages
Authors: Karpachev S P , Bykovskiy M A 
Published: October 2020

Abstract
In this article, a universal tractor processor (UTP) is proposed. The UTP allows you to harvest all types of trees and process them into assortments and for fuel chips. The maximum productivity of the UTP for the output of assortments will be in the case of logging business trees with the production of chips (option 2). The total productivity of the UTP will be maximum when it is working by the option 3, when business and low quality non-commercial trees are harvested. In practice, if the goal is to maximize the output of business assortments, then the UTP work should be organized according to the option 1 or 2. If the time to clean up the logging residuals before the UTP is longer than the time to process the residuals into fuel chips, then option 2 will show the best results. In this case, in addition to the maximum output of assortments, additional products will be obtained – fuel chips. The maximum productivity of the UTP for the output of assortments is achieved if you exclude the harvesting of thin-sized trees (option 3).
Compensatory institutional arrangements and visions for the development of Russian forest-resource regions
Authors: Kozyreva G B , Sukharev M V 
Published: October 2020

Abstract
The article is devoted to the study of the problems of the formation of sustainable development institutions for depressive lumber cutting territories (in the case of the Republic of Karelia). One of these institutions is forest certification, which obliges forest companies to formulate economic strategies in accordance with social responsibility criteria. The obtained results indicate that today forest companies do not set the implementation of social policies regarding the local population as a key goal. The economic interests of business and their management decisions regarding forest management are not related to the problems of the local population. However, this is not an obstacle to obtaining a forest certificate. The Forest Certification Institute has not yet performed a compensatory function, which actualizes the development of new forest policy instruments.
Calculation of a universal energy module to provide energy and heat to the logging team
Authors: Martynov B G , Kondakov I S , Taraban M V , Kulikov A A , Ivanova I V 
Published: October 2020

Abstract
The article provides a comparative calculation of the heat of diesel and wood fuels released during combustion. Specific consumption of pellets for release of required amount of energy is determined and diagram of gas generator plant operating on wood fuel is presented. The plant is designed to provide heat and energy to an autonomous logging brigade.
Priority areas of research in the development of the timber industry complex in Russia: technical and logistics aspect
Authors: Medvedev S , Mokhirev A , Rjabova T 
Published: October 2020

Abstract
The article deals with the priority areas of research in the development of Russian timber industry complex. The most important areas of research are highlighted. It is determined that the scientific (theoretical) perception does not always coincide with the applied (practical) aspects of the industry. The most problematic areas in the development of the timber industry were identified. Key attention is paid to technological and logistical aspects.
To the analysis of qualitative indicators of plant vitality in assessing the value of urban green spaces
Authors: Melnichuk I , Trubacheva T , Tsymbal G , Dvatsatova T 
Published: October 2020

Abstract
Abstract The decrease in the plant vitality, and, therefore, the functionality of urban green spaces caused by a sharp deterioration in the growing conditions and the non-observance of scientifically based principles of planting planning and an absence of a reasonable plant material selection for specific objects. An unsystematic increase in the species and cultivar diversity of ornamental trees and shrubs occurs spontaneously, without considering the consistent work on introducing and cultivating new species and varieties. The use of imported, not adapted, and often poor-quality planting material leads to a decrease in the survival rate of new plantings and, as a consequence, to a deterioration of the condition of a green space in general.
Improvement of logging operations technological chains in the conditions of seasonal dynamics
Authors: Mokhirev A , Gerasimova M , Rukomojnikov K 
Published: October 2020

Abstract
There are many options for organizing the logging process by timber enterprises. In most cases they are chosen by management based on personal experience. Cost-effective development of the forest sector is associated with the use of the most rational technological chains of logging operations, adapted to the specific natural and industrial conditions of forest territories. This research is a continuation of the author’s team work on the complex task of improving the efficiency of logging operations, taking into account the analysis of various moving and processing operations of the technological process. In previous publications the authors presented a graphoanalytical and mathematical models to solve the task. This article presents a solution based on them to improve the technological chains of logging operations, taking into account the seasonal nature of logging for the conditions of the Krasnoyarsk territory. Special attention is paid to the comparative analysis of costs for performing transport and loading and unloading operations in the conditions of seasonal dynamics. A rational chain of logging operations has been determined, which allows to reduce costs compared with other options for organizing the technological process and, as a result, to increase profits from the sale of products.
Increasing the efficiency of the use of forest resources by the digitalization of forest education
Authors: Mushkarova O , Mikheeva M , Tereshchenko S , Panyutin A , Kuznetsov E 
Published: October 2020

Abstract
Currently, the problem of increasing the efficiency of the use of forest resources is urgent. One of the factors affecting the efficiency of the use of forest resources is the quality of the human capital of the forest sector.It is necessary to develop the key competencies of employees and future employees of the forestry sector using various forms of training. In recent years, forestry education has been actively developing based on the use of the digital technologies. The article presents the results of surveys of students on their perception of a new form of education, students’ assessment of the possibility of high-quality mastering of material in distance learning and the difficulties they face. Conclusions are also made on how digitalization of forestry education will improve the efficiency of the human capital of forest sector organizations which will affect the efficiency of the use of forest resources in Russia.
Phytogeography boundaries between Stone-birch and White-birch forests in the North of the Koryak Region
Authors: Yu Neshatayev V , Yu Neshataeva V , Kirichenko V E 
Published: October 2020

Abstract
The distribution boundaries of the two birch species communities: Stone-birch (Betula ermanii Cham.) and White birch (Betula platyphylla Sukacz) forests have been firstly reliably established for the North of the Koryak Region. The remote sensing data, aerial observations, original relevés, and itinerary research data were used. A map of the Stone-birch and White-birch forests allocation in the mainland part of the Koryak Region was compiled. It was shown that Stone-birch groves were found in relatively warmer and wetter areas adjacent to the Bering Sea coast. They occupy Southern and South-Eastern slopes of the Koryak Upland spurs; whereas White birch forests are common in the continental districts. They are found in the valleys of the rivers Penzhina, Talovka, Belaya, Oklan, Apukvayam, on the Penzhinskiy Ridge slopes. Stone-birch forests do not occur North of 62° northern latitude, do not overcome the boggy depression of Parapolsky Dale, and do not occur to the West of 167° 30’ eastern longitude. The natural phytogeographical boundary between the areas of the two birch formations are the Southern and South-Eastern spurs of the Koryak Upland.