In the southern taiga of Siberia, periodic outbreaks Siberian moth Dendrolimus sibrircus Tschetv. have been observed. The result in defoliation fir Abies sibirica Ledeb. and pine Pinus Du Tour. stands across approximately one million hectares, leading to dieback affected forests. This is largely attributable inability promptly identify onset pest population growth a timely manner, particularly context expansive forest areas with limited accessibility. It feasible enhance efficacy monitoring...

One of the most important tasks any platform for big data processing is storing received. Different systems have different requirements storage formats data, which raises problem choosing optimal format to solve current problem. This paper describes five popular presents an experimental evaluation these and a methodology format. The following will be considered: avro, CSV, JSON, ORC, parquet. At first stage, comparative analysis main characteristics studied was carried out; at second...

The Siberian silkmoth is one of the most dangerous coniferous forests pests. outbreaks cause massive defoliation and subsequent forest fires over vast areas. Remote disturbance assessments performed after an outbreak make it possible to assess carbon emissions potential for natural regeneration, estimate fire danger, reveal need implement management practices. goal present research was investigate use modern satellite imagery medium spatial resolution percentage dead trees in a given area....

Abstract One of the most important tasks any platform for big data processing is task storing received. Different systems have different requirements storage formats data, which raises problem choosing optimal format to solve current problem. This paper describes five popular presents an experimental evaluation these and a methodology format.

Abstract The article assumes that, the areas of dark coniferous forests with disturbed and lost stability are catastrophically expanding in Siberian regions modern period. This fully applies to plantations a prevalence Abies sibirica Ledeb., located southern part Yenisei Siberia (territory Krasnoyarsk Region). research was carried out spruce fir Biryusinsky district forestry KGU “Emelyanovskoye lesnichestvo” order clarify role main biotic factors sanitary state violation drying plantations....

The article is devoted to studying the siberian silkmoth ( Dendrolimus sibiricus Tschetverikov, 1908) outbreaks, which highly relevant today. study was aimed at improving system of forest pathology monitoring by revealing factors contributing stand resistance pest attacks. We analyze habitat conditions that are favorable for in early stages its development and during outbreak dark coniferous taiga mountains Southern Siberia (particularly, Krasnoyarsk region). research based on remote sensing...

The research was aimed at studying the taxonomic diversity, habitat specialization, and trophic characteristics of mycobiota, including Basidiomycota, in northern ecosystems Krasnoyarsk Krai (Central Siberia) near Norilsk. Larch forests woodlands Siberian permafrost zone are distinctive as a component these ecosystems, plays an essential role their functioning. Currently, there is paucity information about this group Arctic both terms floristic ecological aspects. Seventy species...

The research was conducted in forests situated within the Maly Borus peak tourist trail (Gornoe Forestry of Shushensky Bor National Park). objective this study is to conduct a comprehensive evaluation current condition that are subjected considerable degree recreational use. methods employed include forest pathology examination, establishment digression stands, quantifying damage surface roots, integral assessment health, and correlation analysis data. disturbance stands along has reached an...

Air pollution is the major anthropogenic factor in urban and industrial areas. Forests play most important role improving environmental quality such Long-term air has an adverse effect on entire biota forests determines nature of plant–pathogen interactions. The purpose present research was to study pathological status understory Pinus sylvestris L. stands subject long-term pollution. conducted pine near Krasnoyarsk. Research methods included a detailed inspection (including saplings...

В настоящей работе исследуются статистические свойства оценки максимального правдоподобия показателя распределения Парето.Степенные законы распределения, такие, как распределение Парето, в последнее время привлекают пристальное внимание исследователей самых различных областях науки и техники, от экономики лингвистики до анализа интернет-трафика.Поэтому задача определения степенного закона по заданной выборке имеет исключительную практическую важность.Аналитически доказано, что предлагаемая...

Scots pine blister rust and red ring rot are common on throughout its entire range. Specialists do not explain a significant variation in the prevalence of diseases uniquely since it depends complex ecological silvicultural factors. The aim this research is to study influence forest growth conditions incidence stands Priangarye (territory located along lower reaches Angara within Krasnoyarsk Krai). methods included detailed pathological examination prevailing types, specific symptom-based...

The task of estimating the parameters Pareto distribution, first all, an indicator this distribution for a given sample, is relevant. This article establishes that estimate, it sufficient to know product sample elements. It proved statistic parameter. On basis maximum likelihood method degree estimated. estimate biased, and formula eliminating bias justified. For elements considered as random variable function probability density are found; mathematical expectation, higher moments,...

Abstract Scots pine blister rust and red ring rot are common diseases on throughout its entire range. Many specialists have studied these in various aspects. Nevertheless, the cenotic patterns of incidence forests, primarily for rust, been to a lesser extent. The study is aimed establish peculiarities forests at dendrocenosis-level context forest conditions biology pathogens. We Dzerzhinskoe forestry located Krasnoyarsk Krai. Research methods included detailed pathological examination,...

Abstract Forests cover 60% of the Sayano-Shushensky Nature Reserve, 48% which are larch and pine stands. The purpose research was to assess condition Larix sibirica Ledeb. Pinus sylvestris L. forests adjacent reservoir within reserve. We conducted forest pathological inspection (for each species on four plots), an integral assessment stands condition, macroscopic diagnostics disease manifestations indicators estimation studied model trees affected by xylophagous insects. Studied ranged from...

Objectives. An analysis of the problem evaluating alternatives based on results expert paired comparisons is presented. The importance and relevance this task due to its numerous applications in a variety fields, whether technical natural sciences or humanities, ranging from construction politics. In such contexts, frequently arises concerning how calculate an objective ratings vector evaluations. terms mathematical formulation, finding can be reduced approximating matrices by consistent...

Background. Degradation of Abies sibirica Ledeb.-dominated forests in the South Central Siberia is a reflection global trend coniferous forest ecosystems decline. Nevertheless, role infectious diseases degradation and dieback often underestimated.
 Research aim. To assess coenotic fir-dominated stands Siberia, considering differentiation trees.
 Materials methods. The research was based on survey A. sibirica-dominated growing Biryusinsky management unit Krasnoyarsk Krai...