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January 2005 - present
Publications
Publications (48)
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The imminent threat of Mongolian montane forests facing extinction due to climate change emphasizes the pressing need to study these ecosystems for sustainable development. Leveraging multispectral remote sensing data from Landsat 8 OLI TIRS (2013–2021), we apply Tsallis non-extensive thermodynamics to assess spatiotemporal fluctuations in the abso...
В представленном сообщении мы попытались проследить этапы научного пути Юрия Георгиевича и выделить ключевые области его научного интереса: организацию и функционирование сложных самоорганизующихся неравновесных систем – биогеоценозов и ландшафтов, различные аспекты биоразнообразия, отношения вида и среды.
Landsat 8 OLI TIRS для ландшафтов северо-западного Прихубсугулья. На примере участка хр. Хорьдол-Сарьдаг рассмотрено пространственно-временное варьирование термодинамических характеристик, рассчитанных в рамках неравновесной модели термодинамики Тсаллиса. На основе метода главных компонент выделены параметры порядка термодинамической системы-инвари...
Four main models of the appearance of boundaries (in a particular case, integrity), arising from the theory of nonlinear dynamic systems, are considered briefly. On the basis of Kotelnikov’s fundamental sampling theorem and, accordingly, general information theory, the character of a distinguished boundary as
a function of the sampling frequency in...
A brief review of the main models for emergence of boundaries and, in a particular case, integrity, arising from the theory of nonlinear volumetric systems. Based on the fundamental value of Kotelnikov’s reference and, accordingly, the general theory of awareness about identifying a characteristic border feature, as frequency of sampling functions...
В статье рассматриваются методологические обоснования проблемы выделения инвариантов нелинейных динамических систем в ландшафтоведении. Понятие инвариантности в контексте существования устойчивых во времени пространственных структур в ландшафте было предложено В.Б. Сочавой (1961). С накоплением многолетних рядов наблюдений состояний ландшафта посре...
The Amur tiger (Panthera tigris) has a status of being endangered on the world’s IUCN red list. The northwestern part of its range is situated in Russia and China, where tigers were exterminated by humans in the 1950–1970s. To restore tiger population within a historical range, an estimation of the habitat suitability is firstly needed. The Lesser...
This study presents the results of over 6 years (11/2011–12/2017) of energy and water flux measurements on the first eddy covariance site in Vietnam, in a mature tropical moist forest under monsoon climate. The dry season, lasting approximately four months, has strong interannual variations. Six-year average precipitation and evapotranspiration amo...
Ta Dung Nature park is an important ecological region, its buffer zone currently has coffee as the main crop. However, declines in coffee yields result in a relative reduction in spending power by households. This study aimed to assess land potential to proposal the land for coffee cultivation. Sustainable agriculture must nurture healthy ecosystem...
The article presents a brief history of the formation and development of long-term stationary research in the Central Forest State Natural Biosphere Reserve, starting from the first soil-geomorphological works in the 1930s and up to the creation in 2017 of the IPEE RAS ecological observatory "Okovsky Les". The main results of stationary research in...
This paper addresses thermodynamic variables that characterize the energy balance and structure of the solar energy transformation by the ecosystems of deciduous tropical forests. By analyzing the seasonal dynamics of these variables, two main states of the thermodynamic system are determined: the end of the drought season and the end of the wet se...
The hypothesis of an increase in free energy (exergy) by ecosystems during evolution is tested on direct measurements. As a measuring system of thermodynamic parameters (exergy, information, entropy), a series of measurements of reflected solar radiation in bands of Landsat multispectral imagery for 20 years is used. The thermodynamic parameters ar...
This chapter reviews the values of landscape cover thermodynamic variables based on multispectral measurements of reflected solar radiation by Landsat 5 and 7 satellite systems at the local level (Central Forest State Nature Reserve, Tver Region, 1 pixel = 30 × 30m) and MODIS Terra at the regional level (East-European plain, MOD09A1 product, 1 pixe...
Lesser Khingan Mountains territory is situated in the areas of Amur tiger (Panthera tigris altaica)historical distribution.
In recent years, Amur tiger individuals have been registered in Lesser Khingan Mountains several times. That indicates the possibility of population restoration. The aim of our research is to check the suitability of the Lesse...
Лесной покров Московской области сильно изменен в связи с длительной историей хозяйственного освоения и активным созданием лесных культур. В результате современный состав и пространственная дифференциация типов лесных сообществ не полностью зависят от природных условий, а во многом именно от деятельности человека. Встает вопрос: сохранилось ли влия...
Today the population of the Amur tiger (Panthera tigris altaica) in the Russian Far East is being restored, young individuals are spread within the historical range, including the territory of China. Here the assessment of the territories suitability that exists at Northeastern China as the habitat of the Amur tiger and its food supply (three speci...
The use of the apparatus of nonadditive statistical mechanics for the evaluation of thermodynamic ecosystem variables based on multispectral measurements of reflected solar radiation is discussed. The parameter q is accepted corresponding to the conditions of the Förster’s maximum of organization. On the basis of remote information (Landsat) the en...
The technology of allocation of order parameters (invariants) of the spatial structure of the thermal field of the southern taiga landscape (Central Forest Nature Reserve) obtained on the basis of the analysis of the time series of measurements in the long-wave channel of Landsat satellites from 1986 to 2017 and reflecting its stationary state is c...
The coenotic diversity of forests of the model region in southwestern Moscow oblast with an area of 51 500 ha has been assessed using data from field studies, remote sensing (Landsat-5 TM, Landsat-8 OLI, and TIRS), and digital terrain models of the landscape. Forest communities are classified using two different methods: eco-phytocoenotic and eco-f...
The study demonstrates commonality of many empirical laws, such as Weber–Fechner law of perception; Stevens' power law; the Cobb–Douglas production function; The PI (photosynthesis-irradiance) curve and other interrelations between biological functions and environmental parameters. On the basis of the law of information transmission C.L. Shannon de...
A new method of estimating the outgoing radiation spectra data obtained from the Hyperiоn EO-1 satellite is considered. In theoretical terms, this method is based on the nonequilibrium thermodynamics concept with corresponding estimates of the entropy and the Kullbak information. The obtained information estimates make it possible to assess the eff...
Observations of trail activity of the martens, mountain hares, and red squirrels in winter along fixed routes in the Central Forest Reserve showed its high variability and synchronism in time and space. Polynomial dependence of the trail activity and correlation between spatial distribution of marten, mountain hare and squirrel are detected. The in...
Entropy production (σ) is a measure of ecosystem and landscape stability in a changing environment. We calculated the σ in the radiation balance for a well-drained spruce forest, a paludified spruce forest, and a bog in the southern taiga of the European part of Russia using long-term meteorological data. Though radiative σ depends both on surface...
bstract. The results of applying the thermodynamic approach to study the functioning of geosystems based on remote sensing data of Landsat satellite for landscapes of the Northeastern Baikal region are discussed. It is demonstrated that the thermodynamic variables calculated using the multispectral scanner imagery reproduce well the types of geosys...
The paper addresses the spatio-temporal dynamics of biosphere reflected by the multispectral MODIS images. The hypotheses of different goal functions are examined and principles of biosphere function are tested. It is demonstrated that one of the major bishopric “goal functions” is the maintenance of the stable solar radiation absorption in the PAR...
A method to assess the thermodynamic variables on regional scale using MODIS multispectral band measurements (MODO9GA product) was developed. It was applied to describe the spatial and temporal variability of thermodynamic variables within the western part of the East European Plain in Russia. Seasonal dynamics of thermodynamic variables was descri...
Vegetation cover changes are analyzed using data on differences in reflected solar radiation in spectral channels in two scenes of Landsat for March 1986 and March 2010, showing the balance between destruction and restoration of vegetation cover. Slight imbalance occurs as the result of the activity of beavers, leading to deforestation of floodplai...
The article proposes approaches to the use of multi-spectral remote information in basic research on the spatiotemporal organization of biogeocenotic cover with and without the use of ground field measurements. It is postulated that remote measurements reflect the biophysical condition of biogeocenotic cover defined by the absorption and conversion...
The paper discusses methods of evaluating thermodynamic properties of landscape cover based on multi-spectral measurements by the Landsat satellites. Authors demonstrate how these methods could be used for studying functionality of landscapes and for spatial interpolation of Flux NET system measurements.
Quantitative analysis of “point” distribution areas of species is analyzed; this method interpolates species distribution to the whole territory based on its correlations with climatic and landscape variables. It is demonstrated that the application of standard statistical interpolation techniques is inappropriate. The new approach uses the interpo...
A quantitative method of species "point" area analysis is considered that provides the interpolation of species distribution to the whole territory on the basis of its relationships with climatic and relief variables. It is shown that application of standart statistical interpolation techniques is incorrect. The proposed approach is based on interp...
A method that allows the estimation of the thermodynamic parameters of the biosphere has been developed. It results in the subdivision of the following four phase states of the biosphere: three equilibrium states: “white planet” with high albedo and low entropy; temperate forest in winter with high entropy; and desert with high entropy; and one non...
The potential of discriminant analysis for assessing the parameters of an ecological niche is demonstrated by a case study
with the pine marten (Martes martes L., 1758) via analysis of the dependence of marten footprint presence on the relief and environmental characteristics represented
by remote sensing data, as well as calculation of the probabi...
A potential of discriminant analysis is demonstrated in a case study of the common marten (Martes martes L., 1758) ecological niche within the Central Forest Reserve and its buffer zone. The analysis is aimed at identifying how the probability to encounter a marten's footprint along a walking route depends on the relief and other parameters of the...
A variety of active surfaces in combination with various building levels forms a specific urban mode of atmospheric turbulence. The spatial combination of green plantings, asphalt and building defines a temperature and wind mode, and creates various air circulation systems. Influence of spatial structure and buildings height on a wind mode of urban...
key words: ecosystem thermodynamic, energy balance, exergy,
Transformation of matter and energy in plant associations and their
relationship with other parts of the ecosystem are being determined by
the physiological processes in plants. Accordingly, to identify general
patterns of ecosystem energy transformation, assessment of an energy
balance co...
A method is proposed for estimating the quality of animal habitats from field counts with positioning routes and tracks by
means of GPS, multichannel Landsat data, digital elevation model, and discriminant analysis. The distribution of American
and European minks is analyzed to demonstrate the principle of choosing an optimal method for analyzing t...
Methodological issues in the studies of spatial and temporal variations in the energy conversion are shown to be solvable on the basis of information thermodynamic approach using the remote sensing techniques. A possibility of evaluation of the main components of the energy balance of a biogeocenosis, considered as an open thermodynamic system main...
