Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-5-13
A. Dancheva, S. Zalesov
{"title":"Influence of thinning on protective pineries biosustainability in Northern Kazakhstan","authors":"A. Dancheva, S. Zalesov","doi":"10.18698/2542-1468-2022-4-5-13","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-5-13","url":null,"abstract":"The article presents the results of thinnings in pineries of the Kazakh uplands in Northern Kazakhstan carried out for an over 70-year period and their influence on biosustainability (on the example of the state national natural park «Burabay»). The research objects are high-density mature pine forests growing in dry forest conditions. The results of research have shown that to the average values of the vital status indicator (VSI), the complex estimated indicator (CEI) and the tree slenderness coefficient (H/D), pine stands in most sections are characterized as «weakened». In forest stands after thinning of strong and very strong intensity of thinning in terms of tree slenderness coefficient (H/D) the pine forests is assessed as healthy. It is proved that the vital status maximum credible indicators of the pine forests and the implementation of forestry practices in them is the tree slenderness coefficient. The largest number of trees (up to 70 % of the total number of trees) with tree slenderness coefficient an H/D value of less than 100 in the pine forest after very high intensity thinning is evaluated. A large number of trees with H/D < 100 in the forests proves a weak competition between trees in the forests and higher resistance to natural and anthropogenic factors are proved. The data obtained show a positive effect of strong thinning on the increase in the radial growth of pine trees. For formation of sustainable pine forests in dry growing conditions in Northern Kazakhstan with thinning one-two steps with 26–35 % of the stock volumes destruction at the age of 25–30 years and 40–50 years, and with subsequent increment felling in them is recommended.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86830444","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-14-20
R. A. Tretyakova, O. Parkina, O. Yakubenko
{"title":"Developmental features of Siberian spruce (Picea obovata) root system with different cultivation technologies","authors":"R. A. Tretyakova, O. Parkina, O. Yakubenko","doi":"10.18698/2542-1468-2022-4-14-20","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-14-20","url":null,"abstract":"An assessment of the Siberian spruce (Picea obovata) root system development with different cultivation technologies on the territory of the «Michurintsev Garden» in the Novosibirsk region was carried out. The variability of the seedlings biometric indicators was established depending on the method of growing planting material: with a bare root system without transplanting and with subsequent planting in containers to obtain large-sized plants. Analysis of the data showed that five-year old transplants grown with a root-balled system for five years underdeveloped lateral roots and the decrease in the number of suction hairs were noted, which leads to a deterioration in the nutrients absorption from the substrate and the slowdown in the life processes of the plant as a whole. With transplanting in the fifth year, the dying off of the main root and the active development of lateral roots are observed, which provides an increase in the area of soil development and an improvement in the transplants nutrition. The extent of the influence of hydrothermal conditions on the growth and development of Siberian spruce (Picea obovata) transplants was studied. It has been established that the formation of the root system and the nature of the onset of phenorhythms significantly depend on the growing conditions.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91453430","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-21-28
A. Filatov, A. V. Gryazkin, O. Gavrilova
{"title":"Unmanned aerial vehicles and land technique assessment of young forest stands","authors":"A. Filatov, A. V. Gryazkin, O. Gavrilova","doi":"10.18698/2542-1468-2022-4-21-28","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-21-28","url":null,"abstract":"The article presents the data on the composition and condition of mixed young forests, obtained using unmanned aerial vehicles and the classical land technique. The plotting of the forest area was carried out by quadcopters. The land technique was used to assess the composition and condition of young stands, undergrowth and live ground cover on10 m2 circular plots. At each object, 48 discount areas were laid. The objects of study are young stands of natural and artificial origin. It was established that young growths of natural origin were formed in the 7 hectares cutover plots in 2006. They include pine, spruce, birch, aspen and alder. Spruce plantations were created in 2012 on an area of 12 hectares. It is shown that the understories and small undergrowth are not visible from a quadcopter, while the classical method gives the detailed characteristics. Additional characteristics of young forests obtained with the help of unmanned aerial vehicles are given. It is shown that the results obtained by the two methods are consistent, the error in the main characteristics does not exceed 10%. The combination of the two methods gives more complete information on the forest area. However, each of the methods used has its own advantages and disadvantages.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74251565","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-73-80
A. Kolyada, A. Belov, N. Rozlomy, S. Berseneva
{"title":"Garden square as landscape-architectural territory of recreational and functional purpose in city of Ussuriisk, Primorsky Krai","authors":"A. Kolyada, A. Belov, N. Rozlomy, S. Berseneva","doi":"10.18698/2542-1468-2022-4-73-80","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-73-80","url":null,"abstract":"The study results of ten garden squares in the city of Ussuriysk (Primorsky Krai) are discussed in the paper. Their functional purpose, composition of woody plants, architectural features are analyzed. A significant part of the garden squares (50 %) is intended for family recreation, others are used for pedestrians and short-term recreation. The plantings contain both native and introduced plants. The Square named after the 40th anniversary of the Victory has the largest area (3,9 hectares), the smallest one is the Square named after the 150th anniversary of Ussuriysk and the square on Chicherin Street, 77 (0,2 hectares each). Rectangular garden squares predominate. Measures are proposed for the landscape transformation of the studied green areas such as the expansion of the floristic composition, redevelopment in order to use such areas for family recreation with children of different ages.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85169172","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-103-112
Y. Skurydin, E. Skurydina
{"title":"Birchwood pre-hydrolytic treatment effect on physical and mechanical characteristics of composite material obtained on its basis","authors":"Y. Skurydin, E. Skurydina","doi":"10.18698/2542-1468-2022-4-103-112","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-103-112","url":null,"abstract":"The effects of the birch wood pretreatment with hydrogen peroxide and its subsequent treatment by explosive autohydrolysis on the density, strength in static bending, water absorption and swelling of a composite material obtained on the basis of hydrolyzed wood pulp by hot pressing without the addition of binders are presented. The dependences of the density of the samples, their strength and hydrophobic characteristics on the amount used in the processing of hydrogen peroxide and the conditions of explosive autohydrolysis have been established. The threshold limit of hydrogen peroxide for each of the modes of explosive hydrolysis has been determined.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80604118","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-53-62
A. Lebedev
{"title":"Generalized model of pine trees diameter distribution","authors":"A. Lebedev","doi":"10.18698/2542-1468-2022-4-53-62","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-53-62","url":null,"abstract":"A generalized statistical model for the distribution of tree diameters for pine forest plantations, developed on the basis of a three-parameter Weibull function, is presented. Its parameters were restored using data from 231 distribution series on 24 permanent sample plots in the Forest Experimental Station of the Russian State Agrarian University — Moscow Timiryazev Agricultural Academy from the first and second central moments of the distribution. It is shown that their estimates can be obtained from the equations of connection with the root-mean-square diameter of trunks in a forest stand. It was revealed that the developed model approximates with high accuracy the actual distributions of tree diameters in maturing, middle-aged and mature forest stands, and in young stands there may be deviations between the actual and predicted frequency values. It is shown that the main purpose of the developed model is to predict the distribution of diameters of tree trunks in future ages of forest stands to optimize the management of forest plantations.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87785911","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-81-91
N. A. Mamaeva, Ya. V. Kuznetsova
{"title":"Morphological features of beardless iris group and their application in landscape compositions (in Natur Garden style)","authors":"N. A. Mamaeva, Ya. V. Kuznetsova","doi":"10.18698/2542-1468-2022-4-81-91","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-81-91","url":null,"abstract":"The comparative study reveals the morphological features of the Beardless irises group in order to assess the possibilities of their application in Nature garden landscape compositions as a possible alternative to two natural species — Iris sibirica L. and I. sanguinea Hornem. The Red Data Books can potentially be fraught with legal complexities. The formation and study of a model sample, formed on the basis of the irises collection in the laboratory of ornamental plants of the Main Botanical Garden, has been carried out. It was revealed that according to the complex of the studied quantitative and qualitative characteristics (14 and 27 names, respectively), all samples — a species of natural flora — Iris sibirica, a garden form of natural origin — I. sibirica f. alba and 8 varieties of the Beardless irises group can be rightfully attributed to irises with «natural appearance». Based on a comprehensive assessment of the quantitative traits of the generative sphere, it was found that none of the studied varieties can be recommended for replacing Iris sibirica. On the basis of the vegetative sphere, it is reasonable to recommend four cultivars as a possible alternative to Iris sibirica and its white-flowered form: ‘Seven Seas’, ‘Steve Verner’, ‘Cambridge’ and ‘Bigminki Hori’. At the same time, the ‘Bigminki Hori’ variety can be considered as the optimal substitution option — according to the complex of studied phenotypic traits, as well as taking into account the visual perception of plants as a whole.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84049281","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-119-127
O.V. Murashova, N.S. Glavatskikh, P.N. Perfiliev, N. Zadrauskaite
{"title":"Prospects for the integrated use of logging production waste","authors":"O.V. Murashova, N.S. Glavatskikh, P.N. Perfiliev, N. Zadrauskaite","doi":"10.18698/2542-1468-2022-4-119-127","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-119-127","url":null,"abstract":"Using the example of the Krasnoborsk district in the Arkhangelsk region, the prospects of using felling residues as raw materials for the production of fuel briquettes are investigated. The technology of logging residues and production of fuel briquettes is proposed. Transportation schemes of logging waste to briquette production plants and briquettes to local energy sources have been developed.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86861395","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-128-134
Renat H Gainullin, Rishat H Gainullin, E. M. Tsvetkova, M.Y. Smirnov, A. Makarov, A.V. Eroslanov
{"title":"Mathematical substantiation technological parameters of device to measure apparent density of porous materials","authors":"Renat H Gainullin, Rishat H Gainullin, E. M. Tsvetkova, M.Y. Smirnov, A. Makarov, A.V. Eroslanov","doi":"10.18698/2542-1468-2022-4-128-134","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-128-134","url":null,"abstract":"The article describes the procedure for mathematical substantiation technological parameters of a device for measuring the apparent density of porous materials. For this purpose, methods for solving differential equations, Microsoft Excel application with the «Solution Search» function, graphoanalytic and geometric methods were used. The justification was based on the functional dependence Vт/Vc + ΔV1/ΔV2 = 1, describing the relationship between the parameters of the device and the object of study. The use of these methods allowed us to obtain a single result. Calculations have established that the optimal ratio between the volume of the test body and the cylinder for the sample (measuring cylinder) is 0,5. This ratio allows obtaining reliable results in the course of experimental studies, as well as simplifying the measurement procedure. For the study of porous bodies, the sample volume should be selected taking into account the porosity of the material based on a priori information.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90049331","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}
Forestry BulletinPub Date : 2022-08-01DOI: 10.18698/2542-1468-2022-4-29-38
S. Kryuchkov, A. Solonkin, A. Solomentseva, A. Romanenko, S. A. Egorov
{"title":"Modern biostimulants and growth regulators for nursery breeding in conditions of degradation and desertification","authors":"S. Kryuchkov, A. Solonkin, A. Solomentseva, A. Romanenko, S. A. Egorov","doi":"10.18698/2542-1468-2022-4-29-38","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-29-38","url":null,"abstract":"The results of testing the preparations «Biostim Start», «Kornevin», «Agrovit Core» on experimental samples of tree species growing in various districts of the Volgograd region for the period 2019–2021 are presented. The method of grafting into the cleft, simple and for the bark on the сaragana variety of the selection of the Federal Research Centre of Agroecology of the Russian Academy of Sciences has been tested. The objects of research were 10 species from the genera Populus, Gleditsia, Caragána, Tamarix, Robinia, Ulmus. It was found that the soil germination of gledichia vulgaris was the best in the variant with the introduction of the super fertilizer «Agrovit Core» at a dose of 5...90 g/m2. The best result was noted in the experiment with the use of the drug «Biostim Start» with different doses of application in poplar and Tamarix species, which showed a record increase in arid conditions (from 80 to 100 cm), which was 2 times higher than in control samples. It was determined that during cuttings, an increased dose of introduction of growth regulators and biostimulators can reduce the percentage of preservation and development of green cuttings of woody species. The best result is given (up to 70% survival rate of rootstocks of experimental plants), in particular, autumn grafting for bark — the best autumn preservation and gains with a rootstock thickness of 0,3...0,8 cm. For further breeding work and experiments on the breeding of new varieties, the best species were selected — Caragana arborescens Lam., Populus nigra L., Populus bolleana Lauche., Tamarix L., Gleditsia triacanthos f. Inermis L. They have shown the best results in the conditions of the sharply continental climate of the arid region and are suitable for agroforestry development of the territory of the Lower Volga region.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89628461","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}