Environmental Dynamics and Global Climate Change最新文献

{"title":"VII International Field Symposium “West Siberian peatlands and the carbon cycle: past and present”","authors":"I. D. Akhmedova","doi":"10.18822/edgcc625808","DOIUrl":"https://doi.org/10.18822/edgcc625808","url":null,"abstract":"В 2024 году с 15 по 27 августа пройдет 7-й Международный полевой Симпозиум – масштабное событие для российской и мировой научной общественности, занимающейся изучением роли торфяных болот в углеродном цикле планеты, который непосредственно связан с изменением климата.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"89 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139612775","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":"Estimation of tree cover height on oligotrophic bog based on UAV lidar surveying","authors":"D. V. Ilyasov, A. A. Kaverin, S. N. Zhernov, M. Glagolev, A. V. Niyazova, I. Kupriianova, I. V. Filippov, I. Terentieva, A. Sabrekov, E. D. Lapshina","doi":"10.18822/edgcc625744","DOIUrl":"https://doi.org/10.18822/edgcc625744","url":null,"abstract":"Выполнена верификация лидарных данных оценки высоты отдельных деревьев на участке сосново-кустарничково-сфагнового сообщества и средней высоты деревьев на 12 участках четырех типологически различных биотопах (ГМК, Рям, РмМК, Открытое болото) болотного массива «Мухрино» (средняя тайга Западной Сибири) при помощи лесотаксационных работ. Коэффициент детерминации между наземной и дистанционной оценкой высот отдельных деревьев составил 0.87, средней высоты деревьев 0.55–0.87. Представлена методика получения и обработки лидарных данных, даны методические рекомендации по увеличению точности дистанционной оценки высоты древостоя с использованием беспилотных летательных аппаратов.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"104 38","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614654","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":"Multi-model ensemble successfully predicted atmospheric methane consumption in soils across the complex landscape","authors":"M. Glagolev, D. V. Il’yasov, A. Sabrekov, I. Terentieva, D. V. Karelin","doi":"10.18822/edgcc625761","DOIUrl":"https://doi.org/10.18822/edgcc625761","url":null,"abstract":"Methane consumption by soils is a crucial component of the CH4 and carbon cycle. It is essential to thoroughly investigate CH4 uptake by soils, particularly considering its anticipated increase by the end of the century [Zhuang et al., 2013]. Numerous mathematical models, both empirical and detailed biogeochemical [Glagolev et al., 2023], have been developed to quantify methane consumption by soils from the atmosphere. These models are instrumental in handling spatio-temporal variability and can offer reliable estimates of regional and global methane consumption by soils. Furthermore, they enhance our comprehension of the physical and biological processes that influence methanotrophy intensity. Consequently, we can forecast the response of CH4 consumption by soil to global climate shifts [Murguia-Flores et al., 2018], especially since many models consider the effects of atmospheric CH4 concentration changes on methanotrophy and ecosystem type [Zhuang et al., 2013]. \u0000In addition to the utilization of individual models, such as those cited by [Hagedorn et al., 2005; Glagolev et al., 2014; Ito et al., 2016; Silva et al., 2016], there has been extensive advancement in employing multiple models in an ensemble format. This approach aims to integrate as much a priori information as feasible [Lapko, 2002]. Throughout the 20th century, the concept of ensemble modeling evolved from merely drawing conclusions based on multiple independent experts (F. Sanders, 1963) to structured ensemble mathematical modeling [Hagedorn et al., 2005]. In this context, the term \"ensemble\" consistently refers to a collection containing more than one model. \u0000Complexities in describing the physiology and biochemistry of methanotrophic bacteria in natural environments [Bedard, Knowles, 1989; Hanson, Hanson, 1996; Belova et al., 2013; Oshkin et al., 2014] make it difficult to develop accurate biological models and determine their specific biokinetic parameters [Curry, 2007]. At the same time, broader and often empirical models, such as those by [Potter et al., 1996; Ridgwell et al., 1999; Curry, 2007; Murguia-Flores et al., 2018], demonstrate reasonable estimates of global methane consumption. Employing model ensembles could enhance accuracy, not just in global and large-scale modeling, but also at the granular level of local study sites. Nonetheless, ensemble modeling doesn't always ensure optimal outcomes, as all models within an ensemble might overlook a biological process or effect that significantly influences the dynamics of a real ecosystem [Ito et al., 2016]. For instance, no model considered anaerobic methane oxidation until this process was empirically identified [Xu et al., 2015]. Therefore, it's crucial to validate the realism of an ensemble against specific in situ data for every application. This study aimed to develop an ensemble model describing methane consumption by soils and to test its efficacy on a randomly selected study site. \u0000In our research, we closely exa","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"109 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139615489","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":"VARIABILITY OF TEMPORAL CHARACTERISTICS OF SNOW COVER IN SIBERIA ON GROUND-BASED DATA","authors":"Yu. V. Martynova, N. N. Voropay, A. A. Matyukhina","doi":"10.18822/edgcc625771","DOIUrl":"https://doi.org/10.18822/edgcc625771","url":null,"abstract":"Estimates of the variability in the dates of the beginning snow cover formation and end of its descent, the establishing and destruction of stable snow cover, the duration these periods, the number of intervals with stable snow cover in the cold season, as well as the duration of the periods of formation and descent of snow cover were obtained in this paper. Differences in the behavior of these characteristics depending on the geographical features of the territory were analyzed. Four groups of stations were considered: low-lying (up to 50 m) stations, high-lying (from 700 m), stations in Western Siberia (60-90ºE) and in Eastern Siberia (90-120ºE). The snow cover ground-based observations data (RIHMI-WDC) for Western and Eastern Siberia over the time period from 1970 to 2019 was used. Along with the general period (1970–2019) the behavior of these characteristics for two subperiods of 1977–2005 and 2006–2019 corresponding to the zonal and meridional circulation epochs was considered. The response of the snow cover to the change in the atmospheric circulation has been obtained. With the prevailing meridional circulation, in comparison with the zonal circulation, the beginning of the snow cover formation occurs later and synchronously at most of the stations of each of the specified geographical groups, and the snow cover descends earlier, but at the same time is much more non-uniform in time (non-simultaneous) within a geographic group. A smaller number of intervals with a stable snow cover in cold season is also shown, which means more stable snow cover during the cold season in meridional circulation epoch then in zonal. An increase in the duration of the snow cover formation and descent time periods was obtained for all the considered geographical groups of stations. The exception is for low-lying station group only. Thus, the conditions of the meridional circulation epoch not only compensate for the changes that occurred in the zonal epoch, but also bring new changes in the temporal characteristics of the Siberian snow cover.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"101 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614538","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":"SPATIAL VARIABILITY OF METHANE EMISSIONS FROM SOILS OF WET FORESTS: A BRIEF REVIEW","authors":"R. A. Runkov, D. V. Ilyasov","doi":"10.18822/edgcc375293","DOIUrl":"https://doi.org/10.18822/edgcc375293","url":null,"abstract":"Methane is one of the most important greenhouse gases that cause climate change [Karol and Kiselev, 2003]. An increase in the atmospheric concentration of methane contributes to an increase in the temperature on the Earth, because this gas absorbs outgoing thermal radiation from the Earth's surface [Berdin, 2004]. Methane has a much shorter atmospheric lifetime than carbon dioxide (CO2), but CH4 absorbs certain wavelengths of energy more efficiently than СО2. The global warming potential of CH4 is 28 times greater than that of CO2 over a 100-year period [IPCC, 2013]. Its contribution to the formation of the greenhouse effect is 30% of the value assumed for carbon dioxide (Bazhin, 2006). Methane is removed from the atmosphere by photochemical oxidation in the troposphere and, to a lesser extent, by microbial oxidation in soils (Kirschke et al., 2013). \u0000Methane sources can be both natural and anthropogenic. The latter includes, firstly, industrial processes: \u0000 \u0000fuel use [Omara et al., 2018; Johnson et al., 2023] (if the fuel is not completely burned, then methane gas is emitted into the air, besides it can also be released during the extraction and transportation of natural gas [Hawken et al., 2017]); \u0000food production (eg CH4 can be generated from the fermentation of food residues that were not used in the production process [Stephan et al., 2006]); \u0000as a result of microbial activity during the processing of waste in landfills and compost heaps (for example, in the process of biological waste treatment, methane can be produced in large quantities if the process is not properly controlled [Singh et al., 2017]). \u0000 \u0000Secondly, two types of agricultural production are anthropogenic sources: \u0000 \u0000rice cultivation [Seiler et al., 1984; Dannenberg and Conrad, 1999; Wang et al. 1997; Wang et al., 1999]; \u0000cattle breeding [Gerber et al., 2013; Johnson et al., 2023; Ellis et al., 2007]. \u0000 \u0000CH4 is formed as a result of the biological decomposition of organic matter in the absence of oxygen [Dlugokencky and Houweling, 2003]. The most significant natural sources of methane are wetlands. Besides, methane can be emitted from aquatic ecosystems such as lakes and rivers. The decomposition of organic wastes in the soil, such as plant residues and animal manure, is also a natural source of methane (Smith et al., 2014) if this decomposition occurs under anaerobic conditions. \u0000Of great interest is the study of wet forests [Glukhova et al., 2021], since their contribution to methane emission can be quite significant. It is generally recognized that forests are CH4 sinks [Lemer and Roger, 2001; Megonigal and Guenther, 2008; Smith et al., 2000]. Nevertheless, very high CH4 fluxes were detected during spot measurements in some wet forests [Lohila et al., 2016; Tathy et al., 1992], that were comparable to the fluxes observed in wetlands [Harriss et al., 1982; Sabrekov et al., 2011; Glagolev et al., 2012; Davydov et al., 2021] (Fig. 1). However, single measurements of fluxes at ","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"121 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139613927","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":"The influence of the hydrometeorological factors on the CO2 fluxes from the oligotrophic bog surface.","authors":"Artem A. Kulik, Evgeny A. Zarov","doi":"10.18822/edgcc624160","DOIUrl":"https://doi.org/10.18822/edgcc624160","url":null,"abstract":"Global climate change is one of the most important and promising phenomena to study in actual time. One of the key causes of global climate change is increasing the greenhouse gas (GHG) concentrations in the atmosphere [IPCC, 2023]. The main greenhouse gases are methane, carbon dioxides and nitric oxide, which contribute to the greenhouse effect and global warming [Lashof, Ahuja, 1990]. Carbon dioxide (CO2) is one of the most significant and widespread gases involved in the planet's global carbon cycle [Lashof, Ahuja. 1990]. At the same time, living organisms play a key role in creation of atmosphere composition. Autotrophic organisms use a carbon dioxide to build their body structures, including complex organic compounds. During ecosystem functioning, the part of the carbon dioxide is released into the atmosphere through organism respiration, while another part is released through the decomposition of dead organic matter. Carbon dioxide may also be produced through natural and anthropogenic processes. \u0000Peatland ecosystems play a significant role in the planet's carbon cycle, both locally and globally. Peatlands in their natural undisturbed state are a significant long-term carbon sink1. However, the process of carbon deposition is not constant – in different years, peatlands may serve either as carbon sink or source2. The main factor stimulating the carbon sequestration by peatland ecosystems is climatic conditions [Harenda et al., 2018; Bond-Lamberty et al., 2018]. Peatlands are the second most significant carbon stock on Earth and the largest on land. Despite covering only 2.84% of the Earth's land surface, the amount of soil organic carbon stored in them accounts for about one-third of all soil organic carbon on Earth. Peatlands in the northern hemisphere play a particularly important role in carbon sequestration, with an estimated accumulated carbon quantity of ~473–621 Gt of carbon [Yu et al., 2010]. \u0000The largest area of peatlands in Russia is located in Western Siberia, estimated at ~42% of the total Russian area [Vomperskiy et al., 1994; Sheng et al., 2004]. The territory of Western Siberia is featured to a high share of peatlands in original undisturbed state, making them an ideal location to study the impact of global changes on peatland biogeochemical functioning worldwide. \u0000The carbon balance of peatlands is mainly determined by two processes: photosynthesis and respiration [Harenda et al., 2018]. The main factors influencing the CO2 flux from peatlands are photosynthetically active radiation, atmospheric air temperature (Tavg), soil temperature (Tsoil), and water table level (WTL) [Miao et al., 2013; Juszczak et al., 2013; Dyukarev et al., 2019]. At the same time, the level of mutual influence and the degree of determination have not yet been fully determined. \u0000To study the carbon balance of terrestrial ecosystems, the chamber method [Davidson et al., 2002] is widely used. The chamber method allows to estimate the CO2 flux from the s","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"121 42","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139613870","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":"International Symposium “Mires of Northern Eurasia: biosphere functions, diversity and management” (Russia, Petrozavodsk, September 25-28, 2023).","authors":"O. Kuznetsov","doi":"10.18822/edgcc624077","DOIUrl":"https://doi.org/10.18822/edgcc624077","url":null,"abstract":"Болотные экосистемы выполняют важную роль в биосфере, регулируют круговорот углерода, являются источниками полезных ресурсов, уникальными местообитаниями многих растений и животных, специфических сообществ. Болота являются объектами исследований широкого круга биологов, гидрологов, географов и других специалистов. В мире и в России сложились традиции болотоведческих исследований и научные школы, существует научное сотрудничество между ними. Важной формой научных коопераций исследователей являются научные мероприятия: конференции, симпозиумы, полевые семинары и экскурсии, на которых участники делятся результатами своих исследований, обсуждают сотрудничество и совместные работы. В Институте биологии Карельского научного центра РАН комплексные исследования болот ведутся с 1950 года и сложилась научная школа болотоведения, известная в России и за рубежом. На ее базе давно проводятся различные научные мероприятия с участием широкого круга исследователей из стран Европы. С 25 по 28 сентября 2023 года прошел очередной международный симпозиум «Болота Северной Евразии: биосферные функции, разнообразие и управление», который собрал около 100 участников из 42 научных организаций, вузов, охраняемых природных территорий России и Беларуси, приехавших из 24 регионов от Красноярска до Калининграда и Минска. На симпозиуме было заслушано более 60 устных докладов, а также представлено 28 стендовых, по разным проблемам изучения природы болот и их использования, на трех секциях. Состоялись полевые экскурсии на болота южной Карелии, в том числе и в заповеднике «Кивач».","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"103 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614524","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":"MATHEMATICAL MODELS OF METHANE CONSUMPTION BY SOILS: A REVIEW","authors":"M. Glagolev, I. Terentieva, A. Sabrekov, D. V. Il’yasov, Dmitrii G. Zamolodchikov, Dmitrii V. Karelin","doi":"10.18822/edgcc622937","DOIUrl":"https://doi.org/10.18822/edgcc622937","url":null,"abstract":"This review explores mathematical models that assess methane (CH4) uptake in aerated soils within terrestrial ecosystems. Methane, a potent greenhouse gas, is produced under anaerobic conditions. While substantial research has been dedicated to methane emissions from water-saturated soils over the past four decades, the absorption of CH4 by non-saturated soils, despite their expansive coverage, has received less focus. In tropical and subtropical soils, methane consumption constitutes less than 5% of the global uptake. However, there's limited data concerning methane consumption in temperate non-saturated soils, which are prevalent in forests, grasslands, steppes, and croplands. This data scarcity has resulted in estimate uncertainty: methane consumption ranges between 1% to 15% of the global methane sink attributed to photochemical degradation. \u0000The mechanism of methane uptake by soils primarily stems from the dominance of methanotrophy over methanogenesis. In aerated soils, methane production by methanogens is absent (or minimal), with the primary source being the atmosphere. Methanotrophs, active in the upper soil layer, uptake this atmospheric methane. This absorption rate is influenced by both microbial oxidation and the diffusion of methane into the soil. The diffusion rate is notably determined by the atmospheric concentration of CH4 and the porosity of the soil's aeration – the fewer the pores filled with water, the more rapid the diffusion. The rate of oxidation, on the other hand, is influenced by the soil's temperature and moisture levels. Just as neither extremely dry soil (where microbial activity is limited due to water scarcity) nor overly wet soil (where microorganisms are deprived of oxygen) offer optimal conditions; temperature extremes – whether too cold or too hot – can also negatively impact the methane oxidation process. \u0000Nowadays, direct measurements of both methane consumption and emission processes are routinely conducted using high-precision field gas analyzers. However, while CH4 emissions have garnered significant attention, data collection on methane consumption is still limited, particularly in remote locations. When in situ data are limited, mathematical models offer a reliable approach for extrapolating site-specific data to regional or global scales, enhancing our understanding of soil methane oxidation processes and how they respond to climatic shifts. In this study, we critically evaluates various mathematical models related to the topic, examining their strengths, limitations, and suitability for estimating large-scale methane consumption in aerated soils. \u0000The field of CH4 cycle modeling currently employed a diverse range of mathematical models. These can be broadly classified into two main categories: (1) empirical models, and (2) physics-based models. The choice between these models often depends on the research objectives. On the other hand, models of regional ecology can be grouped into interpolation-extra","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"31 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138601602","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":"The Fifth All-Russian Scientific and Practical Conference “Safe North – clean Arctic”.","authors":"G. M. Kukurichkin","doi":"10.18822/edgcc623119","DOIUrl":"https://doi.org/10.18822/edgcc623119","url":null,"abstract":"The Fifth All-Russian Research-to-Practice Conference (with international participation) “Safe North - Clean Arctic” was held on April 13-14, 2023 at the Surgut State University. This traditional forum brought together 280 participants from various regions of Russia, as well as colleagues from Kazakhstan. The topics of the presentations (more than 80 reports in total) covered a wide range of issues: the study and conservation of biodiversity, the creation of bioresource collections, environmental monitoring, human ecology, rational use of natural resources, the formation of a comfortable and safe environment for human life in the northern regions. To the 85th anniversary of the birth of the founder of the Department of Ecology of Surgut State University, a round table “The scientific heritage of Professor Yu.V. Titov (1938-2001)\" was organized. The round table participants discussed the role of Yu.V. Titov as an organizer of science and education in Ugra.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139282462","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":"Stratigraphy of peat deposits and mire development in the southernpart of the forest zone of Western Siberia in Holocene.","authors":"E. D. Lapshina, E. Zarov","doi":"10.18822/edgcc568688","DOIUrl":"https://doi.org/10.18822/edgcc568688","url":null,"abstract":"This article provides a historical review of the peatlands study in the Middle and South taiga, as well as Subtaiga zone of Western Siberia, and summarizes the data on the structure of peat deposits in mires of the region, accumulated by the senior author over many years of field research (1980-2004). The features of the main types of stratigraphic structure, as well as a description of the development history of peat mires, are given based on a detailed study of macrofossil composition of peat cores and peat sections. Peat cores were selected within the landscape-ecological profiles, covering all relief elements from the raised bogs of the watershed plains to the mires of river valleys and gullies of ancient water runoff in different climatic zones and subzones (Subtaiga, Southern taiga and Middle taiga). The oldest peat deposits are associated with the deep thalwegs and ancient hydrological system. Peat formation started simultaneously within the taiga zone and the present subarctic zone of Western Siberia and reached the high distribution level in Boreal period. The peatlands development process tightly followed the climate humidity in the wet periods, the watershed mires actively developed and floodplain mires development was constrained by the alluvial deposition process; in the dry periods, the floodplain mires developed actively and the watershed mires grow was stagnated.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327290","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}