Forestry Bulletin最新文献_第8页

Pine (Pinus sylvestris L.) cambial growth in Taiga zone of Russian European North 俄罗斯欧洲北部针叶林区松的形成层生长

Forestry Bulletin Pub Date : 2022-10-01 DOI: 10.18698/2542-1468-2022-5-5-14

E. Pinaevskaya, S. Tarkhanov

{"title":"Pine (Pinus sylvestris L.) cambial growth in Taiga zone of Russian European North","authors":"E. Pinaevskaya, S. Tarkhanov","doi":"10.18698/2542-1468-2022-5-5-14","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-5-5-14","url":null,"abstract":"A study was carried out to identify the climatic response in the pine cambial growth under the conditions of excessive moisture in the soils of the northern and middle taiga. The results of the pine trees growth with different apophysis of the cones seed scales from different habitats (the basins of the Northern Dvina, Pinega, Vaga rivers and the mouths of the Mezen and Vychegda rivers) are presented. Significant differences in growth were established between trees with a «convex» and «flat» apophysis of the cones seed scales in the basins of the Northern Dvina, the Pinega and the Vaga rivers and the mouth of the river Vychegda. The values of radial growth in trees with a «flat» apophysis of the cones seed scales are lower than in trees with a «convex» one. It was revealed that different forms of pine have low and close values of the «sensitivity» index (19...27 %), and the variability of this indicator in the more northern coenopopulations is characterized as medium, and in others as medium increased. According to the «stress index», trees of different forms are characterized by a stable and less resistant state to conditions of excess moisture. The cenopopulation of pine at the mouth of the river Mezen and the river basin Pinega established close average values for this indicator. In the river basin of the Northern Dvina, in trees with a «convex» shape of apophysis of the cones seed scales, the average value of the «stress index» is lower than with the «flat» apophysis. In the river basin Vaga and the mouth of the river Vychegda the value of the «stress index» is higher in trees with a «convex» apophysis than in trees with a «flat» shape. Significant correlations were established for the radial growth of various pine trees and air temperature in the study areas. The results obtained can be used in solving environmental problems connected with climate change.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91534798","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}

引用次数: 0

Logging harvester reliability assessment 测井收割机可靠性评估

Forestry Bulletin Pub Date : 2022-10-01 DOI: 10.18698/2542-1468-2022-5-93-101

A. Mokhirev, O. Kunitskaya, G.A. Kalita, N.N. Werner, V. Shvetsova

{"title":"Logging harvester reliability assessment","authors":"A. Mokhirev, O. Kunitskaya, G.A. Kalita, N.N. Werner, V. Shvetsova","doi":"10.18698/2542-1468-2022-5-93-101","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-5-93-101","url":null,"abstract":"The article calculates the reliability parameters of the logging felling-knot-cutting-bucking machine (harvester). Individual elements were evaluated in the car. The operation of the Ponsse-ERGO harvester was carried out on the territory of the Krasnoyarsk Territory. The duration of observations was 10 500 hours. During this time, each node revealed a certain number of failures and the average recovery time after node failure. Based on the results of the calculations, a probability diagram of the harvester system states and a Pareto diagram (accumulated probability of system failures) are constructed. According to calculations, it was determined that the greatest probability of failures falls on the hydraulic system of the transmission and hydraulic manipulator. These elements of the machine account for the main load during its operation. A detailed analysis of the reasons for the failure of a logging machine during its operation is presented. It was revealed that the main reasons for the failure of the hydraulic system are: violation of the tightness of the connection pipelines, increased wear of the moving elements of the assembly, contamination of the hydraulic fluid, not always satisfactory work of the service personnel. Also, the most common reason for stopping the harvester during operation is the failure of the saw headset. An increase in the harvester’s performance and durability can be achieved by optimizing the operating conditions of the logging machine, and optimally selected design material that has higher technical characteristics that strengthen the part itself and the wear surface.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76368144","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}

引用次数: 1

Introduction, growth and development features of Jujube tree (Ziziphus jujuba Mill.) in Astrakhan Volga Region and Volga-Akhtuba floodplain 阿斯特拉罕伏尔加河地区和伏尔加-阿赫图巴冲积平原枣树的引种、生长发育特征

Forestry Bulletin Pub Date : 2022-10-01 DOI: 10.18698/2542-1468-2022-5-23-30

V. Lepesko, L. Rybashlykova

引用次数: 0

State of plant species rating assessments approaches in fuzzy conditions of their monitoring 模糊监测条件下植物物种等级评价方法的现状

Forestry Bulletin Pub Date : 2022-10-01 DOI: 10.18698/2542-1468-2022-5-128-134

Olga Yu. Poleshchuk

{"title":"State of plant species rating assessments approaches in fuzzy conditions of their monitoring","authors":"Olga Yu. Poleshchuk","doi":"10.18698/2542-1468-2022-5-128-134","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-5-128-134","url":null,"abstract":"The paper analyzes the models of rating assessment of green spaces in large cities, developed by the author. Both models are based on the formalization of the state of plant species using linguistic variables that model the evaluation actions of experts in fuzzy conditions. The first model, developed earlier by the author, allows you to find the ratings of green spaces by comparing their states with each other. Thus, the resulting rating of the state of a plant species provides information about the advantages of one species over another, but does not provide complete information about the real state of green spaces. At the same time, it is possible that all plant species from the considered population, regardless of the rating, are not resistant to harmful urban environment. The second model, developed in this article, allows you to find the ratings of plant species based on their ideal state. For this, the distance between the linguistic variables that formalize the real state of a plant species and its ideal state is determined. Since the states of green spaces are compared with the ideal state, and not among themselves, the resulting rating of one plant species does not depend on the data obtained in the evaluation of other species. The developed models allow their alternative application depending on the goals and objectives.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90937405","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}

引用次数: 0

Influence of trees positional application on technological parameters of selective fellings 树种位置施用对选择性采伐工艺参数的影响

Forestry Bulletin Pub Date : 2022-10-01 DOI: 10.18698/2542-1468-2022-5-83-92

Y. Shirnin, A. Shirnin

引用次数: 0

Allelotoxicity of soils and soil substrates reduction 土壤化感毒性和土壤基质还原

Forestry Bulletin Pub Date : 2022-08-01 DOI: 10.18698/2542-1468-2022-4-46-52

I. Gorepekin, G. Fedotov, D. I. Potapov, Y. Batyrev, V. Shalaev

引用次数: 0

Planet climate and energy development and cooperation problems 地球气候和能源发展与合作问题

Forestry Bulletin Pub Date : 2022-08-01 DOI: 10.18698/2542-1468-2022-4-113-118

G. I. Kol’nichenko, Y. Tarlakov, M. S. Usachev

引用次数: 0

Landscape arrangement of memorial complexes Republic of Crimea 克里米亚共和国纪念建筑群的景观布置

Forestry Bulletin Pub Date : 2022-08-01 DOI: 10.18698/2542-1468-2022-4-63-72

V. S. Teodoronsky, A.E. Parfyonova

引用次数: 0

Wood drying condensate as Pinus Sylvestris L. seeds germination activator 木材干燥凝结液作为松种子萌发活化剂的研究

Forestry Bulletin Pub Date : 2022-08-01 DOI: 10.18698/2542-1468-2022-4-39-45

N. Sungurova, A. Drochkova, N.P. Gayevsky, N. V. Volykhina, N. Babich

{"title":"Wood drying condensate as Pinus Sylvestris L. seeds germination activator","authors":"N. Sungurova, A. Drochkova, N.P. Gayevsky, N. V. Volykhina, N. Babich","doi":"10.18698/2542-1468-2022-4-39-45","DOIUrl":"https://doi.org/10.18698/2542-1468-2022-4-39-45","url":null,"abstract":"One of the urgent problems of reforestation is the shortage and lack of high-quality seeds. Although Pinus sylvestris L. is one of the most common species in Europe and Asia, the widespread felling of scots pine, due to the great demand for its valuable raw materials, created the need for the renewal of this breed. Artificial restoration of scots pine often occurs with the help of seeds of medium or low quality, due to the absence or shortage of high-quality raw materials. The solution to this problem can be the use of preparations that improve the quality characteristics of seeds. Therefore, the main task of our study was the impact on seeds, in order to improve their basic qualitative characteristics, of the proposed growth regulator — condensate formed during the drying of wood in the drying chamber of a woodworking enterprise. The reasons for choosing condensate were the content of a large amount of useful substances, cost-effectiveness, environmental safety of use for both humans and the environment, and ease of use. The results of the experiment showed that the germination of seeds was 97 %, and the germinative energy was 87 %. In addition, during the processing of the results of the experiment, it turned out that the substance under the study affects the ability of the seeds treated with it to resist rotting. The protective properties of the condensate are indicated by an insignificant amount of rotted seeds, which ranges from 0 to 1 %. Another weighty argument in favor of the use of condensate seeds for growth stimulation is the waste-free production which is undoubtedly an urgent direction today.","PeriodicalId":12343,"journal":{"name":"Forestry Bulletin","volume":"44 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91441693","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}

引用次数: 0

Mycolysis of wood, its products and their use. V. «Brown rot» of wood as a natural composite and source of intermediates 木材的真菌分解及其制品及其用途。五、木材的“褐腐”作为一种天然复合材料和中间体的来源

Forestry Bulletin Pub Date : 2022-08-01 DOI: 10.18698/2542-1468-2022-4-92-102

G. N. Kononov, A. Verevkin, Yu.V. Serdyukova, V. Petukhov, N. Goryachev

引用次数: 0