Forestry Bulletin最新文献

{"title":"Pine self-regeneration in burnt forest area","authors":"O. Gavrilova, A. V. Gryazkin","doi":"10.18698/2542-1468-2022-3-69-74","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-69-74","url":null,"abstract":"The results of a comprehensive study of the burnt area formed in 2006 on the site of a rocky pine forest in the southern part of the Republic of Karelia, east of Lake Onega, are presented. It has been established that the self-renewal of pine in the burnt area proceeds successfully. Here, young animals of mixed composition were formed. The number of pine undergrowth is 2400 ind./ha. Its number is almost 2 times higher than the number established by the 2020 Reforestation Rules. The young generation of pine is characterized by significant differentiation both in height — from 0,3 to 5 m, and in age — from 3 to 15 years. Analysis of the course of growth of model specimens showed that the increase in height depends to a greater extent on the height of the pine undergrowth than on age. The maximum values of the current growth are 25…30 cm/year. The composition of the undergrowth is dominated by mountain ash and goat willow. The total number of undergrowth species exceeds 1460 ind./ha. Living ground cover is represented by 21 species, of which 12 species are representatives of angiosperms and 9 species of mosses and lichens. Xerophytes dominate — heather, cladonia, juniper polytrichum. The soils are poor and are characterized by the predominance of oligopeat species — lingonberries, small sorrel, lichens. Successful natural reforestation is noted on the site of a burnt rocky pine forest.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83640975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agricultural land change in Udmurt Republic","authors":"C.M. Zhizhin, S. Zalesov, A. Magasumova","doi":"10.18698/2542-1468-2022-3-47-53","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-47-53","url":null,"abstract":"Based on the inventory of agricultural land materials for 1992 and the space images of high spatial resolution interpretation it was analyzed the distribution of agricultural land in the Udmurt republic by types and area. It is noted that over a 27 year period the area of cultivated agricultural land has decreased in the Republic by almost quarter at the same time in absolute terms arable land decreased most of all whill in relative terms fallow lands and hayfields. 27,0 th of ha (6,2 %) of total area of unused agricultural land was lost irretrievably as it was transferred for the construction linear and area facilities. The amount of undergrowth on 327,6 th./ha of former agricultural lands. The amount of undergrowth allows to transfer them to areas covered with forest vegetation lands. Taking into account the age of the formed young stands and their taxation indicators it is advisable to carry on scientifically based forestry on the indicated areas with thinning aimed at accelerating of tactical mature wood culturation. On 79,9 th./ha of arable lands, woody vegetation is at the stage of formation. Taking into account the effective soil fertility, these areas should divided into 2 groups. The first group will consist of a plot where effective soil fertility makes possible to grow a crop equal to or greater that the average grain yields in the municipal district over past four years escaping measures to improve soil fertility. Such plots should be returned to agricultural use. The second group with a total of 43,8 th./ha is a plot where without radical soil improvement grain yields are less than the average yield for the mancapal district over the post four years. At is advisable to give them for the creation of forest plantations from fast growing tree species with a short turnover of felling.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88153576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Common oak and scots pine subpopulations genetic changes under prolonged exposure to low doses of radiation","authors":"V. Sivolapov, L. A. Loginova, E.A. Vorob’eva, V. Veprintsev, S. V. Shchetinkin","doi":"10.18698/2542-1468-2022-3-14-20","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-14-20","url":null,"abstract":"The probability of population significant changes as a result of prolonged exposure to increased radiation in the habitat of the main forest-forming species is considered. The amount of contamination at stationary sites is correlated with the level of heterozygosity of pine and oak samples.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82938387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clonal micropropagation improvement technique of Lonicera Caerulea L. promising cultivars","authors":"N. Orlova, E. Raeva-Bogoslovskaya, O. Molkanova","doi":"10.18698/2542-1468-2022-3-85-92","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-85-92","url":null,"abstract":"The work is devoted to the optimization of clonal micropropagation method of the Lonicera caerulea L. cultivars. The influence of various components of the nutrient medium at all stages of cultivation in vitro has been established. The highest multiplication factor in varieties Diana and Yugana was noted with the addition of glucose at a concentration of 40 g/l and the addition of sucrose at a concentration of 20 g/l. When studying the effect of auxin type on the root formation of honeysuckle varieties, the highest percentage of rooting in Yugana varieties was observed on a nutrient medium with indolylbutyric acid (99 %), and in Gzhelka variety with indoleacetic acid (96 %). It was found that 200 mg/l of iron chelate (Fe(III)-EDDHA) in the composition of the nutrient medium had a positive effect on the percentage of root formation of the variety Diana 81 %. For the Yugana variety (rooting rate 76 %), it is better to use a nutrient medium with the addition of iron chelate Fe(III)-EDTA at a concentration of 73,4 mg/l.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73345556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genus birch (Betula L.) leaf plates pigmentation","authors":"R. N. Babaev, N. Besschetnova, V. Besschetnov","doi":"10.18698/2542-1468-2022-3-29-38","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-29-38","url":null,"abstract":"A comparative assessment of various species included in the taxonomic system of the genus birch (Betula L.) by the content of pigments in the leaf apparatus was carried out. The content of pigments involved in photosynthesis was determined by spectrophotometric analysis. The concentration of pigments was estimated by the optical density of the extract from the crushed sheet plate in 96 % ethanol. It is established that the pigment composition of the leaf apparatus of various types and forms of birch is determined by genotypic and phenotypic features. The studied samples within the species showed a more restrained character in terms of the difference in pigment composition in relation to the interspecific ratio in June. However, when taking into account the same studied signs in July and August, their restraint was also observed between species and forms. The hereditary and adaptive nature of the content of photosynthetic pigments of the leaf apparatus allows us to consider this indicator as one of the identification features during the selection inventory and revision of the assortment composition of breeding and seed-growing objects. Taking into account the success of the growth of European birch on the territory of the Nizhny Novgorod region, it follows that Karelian birch is suitable for introduction into the newly created plantings, as experiments emphasize its pronounced similarity with the native species.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79975172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-frequency electromagnetic field influence on anatomical stem structure of scots pine (Pinus sylvestris L.) and red oak (Quercus rubra L.) annual seedings","authors":"A. Smirnov, P. Aksenov","doi":"10.18698/2542-1468-2022-3-39-46","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-39-46","url":null,"abstract":"The study determines the influence of a low-frequency electromagnetic field on the anatomical stem structure of the annual seedlings of Scots pine (Pinus sylvestris L.) with a root-balled system, carried out in the nursery of the Ustyansky forest seed breeding center of the Arkhangelsk region, and annual seedlings of red oak (Quercus rubra L. ) carried out in the forest nursery of the Donskoy forestry of the Forestry Department of the Lipetsk region, when planting in open ground with the introduction of a hydrogel. Experimental samples of annual seedlings of Scots pine and red oak were treated with a low-frequency electromagnetic field using the patented POSEP technology (pre-sowing treatment of seeds and seedlings with an electromagnetic field) using the «Rost-Active» device (low-frequency generator). Untreated seedlings served as control. Conducted in the laboratory of the Department of Forest Plantations, Breeding and Dendrology of the BMSTU (Mytishchi branch), histometric analyzes of experimental and control samples of annual seedlings of Scots pine and red oak showed a positive effect of a low-frequency electromagnetic field on the anatomical characteristics of their stems.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88668004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Automated control methodology of fire extinguishing means scientific substantiation","authors":"N. Korshunov, V. Savchenkova, A. Perminov, M.E. Konyushenkov","doi":"10.18698/2542-1468-2022-3-75-84","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-75-84","url":null,"abstract":"The issue of firefighters territorial dispersal along the perimeter of a forest fire during its extinguishing is considered. Justification of firefighters’ coordination actions in a constantly changing external environment, taking into account the tasks facing the head of extinguishing a forest fire, was provided. The urgency of creating an automated control system for the forces and means of extinguishing a forest fire, as well as methods of controlling the forces and means of fire extinguishing in the elimination of large forest fires were substantiated. The main tasks underlying the methods of fire extinguishing forces management and technical solutions were given, such as the formation of situational awareness for participants in fire extinguishing and ensuring effective communication through the introduction of its new forms between participants in extinguishing. The implementation of this technique in the form of an automated control system was presented. This will be part of the subsystem of the ISDM-Rosleskhoz remote monitoring information system. The theoretical analysis of the main management tasks arising from the head of extinguishing a forest fire is carried out. Taking into account intellectual and technical developments, the rationale for the feasibility of integrating the subsystem into the existing remote monitoring information system of the Federal Forestry Agency is given. The significance of the work is identified, which consists in the development of algorithms for the automated formation of recommendations for making managerial decisions when organizing the extinguishing large forest fires, the introduction of electronic forms of communication when extinguishing a forest fire. Information links between participants of production processes are defined. An example of drawing up a scheme for extinguishing a forest fire is given. The procedure of actions of the head of extinguishing a forest fire and the heads of subordinate units, as well as a typical algorithm of their work, is presented. The blocks of the automated control system for each stage of its creation are indicated. The planned results of the study are presented.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77405544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of weak cationic polyelectrolytes in paper and cardboard efficiency improvment technology","authors":"N.V. Сhernaya, Z. Shashok, S. Karpova, E. Uss, O. Misyurov","doi":"10.18698/2542-1468-2022-3-105-114","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-105-114","url":null,"abstract":"The article considers the effect of weak cationic polyelectrolytes on the structure- and paper-forming properties of glued fibrous suspensions and the quality of glued and coated paper and cardboard samples obtained from them. It is shown for the first time that the efficiency of using cationic polyelectrolytes increases by 2…3 times due to a change in the sequence of its introduction into glued fibrous suspensions (cellulose and waste paper) in relation to rosin emulsion and electrolyte, as well as by «correction» their dosages. It is found that the use of the developed technology allows cationic polyelectrolytes to participate not only in the process of flocculation, but also in the formation of new sizing complexes in the form of finely dispersed positively charged peptized particles. It is revealed that the replacement of the sizing process in the homocoagulation mode with a more efficient mode of heteroadagulation of peptized particles due to the use of weakly basic cationic polyelectrolytes provides an increase in hydrophobicity and strength of the glued types of paper and cardboard. The expediency of using cationic polyelectrolytes to obtain high-quality products in the developed resource-saving and ecologically safe technology of glued types of paper and cardboard is substantiated based on the established increase in the degree of retention of fibers and sizing complexes and the simultaneous decrease in the content of suspended solids in recycled water. It is determined that the coating of glued paper and cardboard samples obtained with weakly basic cationic polyelectrolytes improves the printing properties of the resulting products. Recommendations are given for replacing the traditionally used complex of natural compounds in the coating paste formulation, including oxidized starch (2,0 parts by weight), sodium carboxymethyl cellulose (0,7 parts by weight) and casein glue (2,0 parts by weight), for one synthetic binder — modified urea-formaldehyde oligomer (3,2 parts by weight).","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86658919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Olginsky larch (Larix Olgensis A. Henry) current state on Borisov plateau (Primorsky region)","authors":"N. G. Rozlomiy, V.Y. Mirhaydarov, A. Belov, Wu Haifeng","doi":"10.18698/2542-1468-2022-3-21-28","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-21-28","url":null,"abstract":"The modern literature on dendrology recognizes and describes 3 species of larch: Gmelin (Daurian) larch (L. gmelinii (Rupr) Rupr), Kayander larch (L. cajanderi Mayr.) and Olginsky larch (Larix olgensis A. Henry). However, Far Eastern foresters-researchers believe that the Lyubarsky larch, described in 1931 by V.N. Sukachev, grows on the territory of Primorsky Krai. The article presents research data on the current state of the Olginskaya larch (Lyubarsky larch) biogroups on the territory of the Borisov Plateau in Primorsky Krai. The Olginsky larch vegetation area and the grass cover of the territory is described in detail. The characteristics of the stand are given according to taxation indicators: origin, composition divided into stories (by weight and number of trees), age, forest density, average height and diameter, bonus, sum of cross-sectional areas, stock. The measurement results of 100 larch trees (diameter and height) were processed in the Exel STATISTIKA program. The age of the stand was determined, the influence of the average annual temperature and the annual amount of precipitation on the growth of larch in diameter was analyzed. The dynamics of the growth of model trees in diameter is analyzed. It has been established that the Olginskaya larch under the conditions of the Borisov Plateau shows negative growth rates in diameter with a lack and excess of moisture, and also at high temperatures the growth rates decrease. The analysis showed that in the conditions of the Borisov plateau there is a general dependence of the increments in diameter on climatic factors. Larch trees growing in the same micro-conditions showed completely different growth rates, which is obviously explained by genetic differences.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89830626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spruce population under the canopy of overmature birch forests in the mixed forest zone of the european part of Russia","authors":"A. Deryugin, Yu.B. Glazunov, Yu.G. L’vov","doi":"10.18698/2542-1468-2022-3-5-13","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-3-5-13","url":null,"abstract":"The results of studies of the under-canopy population of spruce (Picea abies L.) in over-mature birch forests (Betuletum oxalidosum) of the Moscow region are presented. The purpose of the research was to study of the renewal process periodicity, age, vertical structure and condition of the spruce population. The work was carried out on a permanent trial plot in the period 2008–2018. The undulating feature of the spruce renewal process under the canopy of birch forest with a frequency of 30–40 years within the age of the birch trees under consideration has been established. It is determined that the basis of spruce forests formed under the canopy are trees with a renewal period of less than 30 years, which by the onset of the decay of birch forests form the first and second layers with an average age approaching the age of quantitative maturity. The age structure of the spruce population in birch forests aged 115 years is characterized by the dominance of trees of two age groups — 21–40 and 91–120 years, which account for 29 % and 37 % of the population, respectively. The emerging spruce forests belong to conditionally even-aged stands. Trees with a height of 2,0 m dominate (about 40 %) in the vertical structure of the population. The age dynamics of the stand is aimed at a slight increase in undergrowth trees and the first storey, and a decrease in the number of the second storey trees occurs. This is due to the emergence of new spruce specimens and the transition of part of the trees of the second storey to the first one. It was found that weakened trees predominate in the under-canopy population of spruce in overmature birch forests. Trees of the first layer are in the best condition (status category CS = 1). The state of undergrowth trees during the observation period did not change, remaining weakened (CS = 2,3–2,4). The set of trees of the second layer was characterized by positive dynamics — from the category of strongly weakened (CS = 2,7), due to the mortality, it moved to the category of weakened (CS = 2,0). Trees with a renewal period of up to 30 years are in the best condition. As a result of the succession process, after the decay of birch forests, low-density spruce forests with a productivity corresponding to the III site class will be formed.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79332314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}