Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-31-41
O. Bezgodova
The article provides a comparative analysis of the structural and morphometric features of the small river basins of the Tunka system on the example of the Ihe-Uhgun, Engarga, Tunka rivers (left tributaries of the Irkut river, Tunkinsky Golcy Ridge) and the rivers of the northern macroslope of the Khamar-Daban ridge (right tributaries of the Irkut river). Structural indices were obtained on the basis of the ALOS digital surface model (DSM) using GIS and compared with modal indicators to characterize the structural and morphometric features of the basins. The analysis of the indices distribution showed the greatest dissection of the Tunkinsky Golcy basins in the upper links of the erosion network. It was revealed that the basins of the third order, located within the Khamar-Daban ridge, are characterized by the greatest homogeneity of structural indices, and the basins of the depression bottoms have the greatest diversity in the distribution of structural indices. The leading role in the transformation of the relief and the transfer of matter for the small rivers of the Tunkinsky Golcy is played by watercourses of the 1st order; for small rivers of Khamar-Daban - 1st and 3rd orders.
{"title":"STRUCTURAL AND MORPHOMETRIC ANALYSIS OF THE SMALL RIVERS BASINS IN THE TUNKA SYSTEM","authors":"O. Bezgodova","doi":"10.35634/2412-9518-2022-32-1-31-41","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-31-41","url":null,"abstract":"The article provides a comparative analysis of the structural and morphometric features of the small river basins of the Tunka system on the example of the Ihe-Uhgun, Engarga, Tunka rivers (left tributaries of the Irkut river, Tunkinsky Golcy Ridge) and the rivers of the northern macroslope of the Khamar-Daban ridge (right tributaries of the Irkut river). Structural indices were obtained on the basis of the ALOS digital surface model (DSM) using GIS and compared with modal indicators to characterize the structural and morphometric features of the basins. The analysis of the indices distribution showed the greatest dissection of the Tunkinsky Golcy basins in the upper links of the erosion network. It was revealed that the basins of the third order, located within the Khamar-Daban ridge, are characterized by the greatest homogeneity of structural indices, and the basins of the depression bottoms have the greatest diversity in the distribution of structural indices. The leading role in the transformation of the relief and the transfer of matter for the small rivers of the Tunkinsky Golcy is played by watercourses of the 1st order; for small rivers of Khamar-Daban - 1st and 3rd orders.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126042062","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-50-58
M. Sabirova, A. V. Shimarin
Weather and climate affects the health and performance of a person. In weather-sensitive people, a sharp change in the weather can be accompanied by deterioration in health and exacerbation of chronic diseases. With the purpose of revealing comfortable and uncomfortable weather conditions for human health on the basis of a complex account of meteorological elements the estimation of some bioclimatic characteristics in the territory of Tatarstan is given. In this work we used in detail urgent and daily meteorological measurements of actinometric stations of the republic. The choice of the study period was based on the availability of homogeneous data. Bioclimatic pathogenicity index shows the adverse effect on humans in the aggregate of such climatic indicators as air temperature and atmospheric pressure, their changes during the day, relative humidity, duration of sunshine, wind speed. The performed analysis of calculations of the total pathogenicity index shows that comfortable weather conditions are more often manifested in summer period of the year. Repeatability of discomfort weather increases in transitional seasons (spring and autumn), and the most acute conditions in terms of pathogenicity index values are revealed in winter months.
{"title":"FEATURES OF THE SEASONAL COURSE OF THE PATHOGENICITY INDEX IN THE REPUBLIC OF TATARSTAN","authors":"M. Sabirova, A. V. Shimarin","doi":"10.35634/2412-9518-2022-32-1-50-58","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-50-58","url":null,"abstract":"Weather and climate affects the health and performance of a person. In weather-sensitive people, a sharp change in the weather can be accompanied by deterioration in health and exacerbation of chronic diseases. With the purpose of revealing comfortable and uncomfortable weather conditions for human health on the basis of a complex account of meteorological elements the estimation of some bioclimatic characteristics in the territory of Tatarstan is given. In this work we used in detail urgent and daily meteorological measurements of actinometric stations of the republic. The choice of the study period was based on the availability of homogeneous data. Bioclimatic pathogenicity index shows the adverse effect on humans in the aggregate of such climatic indicators as air temperature and atmospheric pressure, their changes during the day, relative humidity, duration of sunshine, wind speed. The performed analysis of calculations of the total pathogenicity index shows that comfortable weather conditions are more often manifested in summer period of the year. Repeatability of discomfort weather increases in transitional seasons (spring and autumn), and the most acute conditions in terms of pathogenicity index values are revealed in winter months.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122621887","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-10-20
D. A. Adakhovskiy
The typology of the life cycles of diurnal lepidoptera of Udmurtia is carried out using such ecological and biological indicators as the duration of generation development (number of years), the level of voltinism during the growing season, seasonal features of the imago flight, development stages at which the winter diapause occurs and its territorial confinement. On this basis, 24 types of cycles have been singled out. Species with annual development (96.7 %) and one generation during the growing season (76.4 %) are strongly predominant. According to the timing of flight, the bulavous are divided into 5 phenological groups, the proportion of which is as follows: spring - 13.8 %, pre-summer - 11.4 %, early-summer - 36.6 %, mid-summer - 35.8 %, late-summer - 2.4 %. Wintering of species is carried out at all stages of development with a predominance of larval diapause (61.5 %). Such species as Vanessa atalanta and V. cardui have the status of ex-regional migrants. The latter species is characterized by diapause-free polycyclic development throughout the year. In addition, the forms of facultative bivoltinism and summer diapause are considered.
{"title":"CHARACTERISTICS OF THE DEVELOPMENT CYCLES OF DIURNAL LEPIDOPTERA (LEPIDOPTERA: HESPERIOIDEA, PAPILIONOIDEA) ON THE TERRITORY OF UDMURTIA","authors":"D. A. Adakhovskiy","doi":"10.35634/2412-9518-2022-32-1-10-20","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-10-20","url":null,"abstract":"The typology of the life cycles of diurnal lepidoptera of Udmurtia is carried out using such ecological and biological indicators as the duration of generation development (number of years), the level of voltinism during the growing season, seasonal features of the imago flight, development stages at which the winter diapause occurs and its territorial confinement. On this basis, 24 types of cycles have been singled out. Species with annual development (96.7 %) and one generation during the growing season (76.4 %) are strongly predominant. According to the timing of flight, the bulavous are divided into 5 phenological groups, the proportion of which is as follows: spring - 13.8 %, pre-summer - 11.4 %, early-summer - 36.6 %, mid-summer - 35.8 %, late-summer - 2.4 %. Wintering of species is carried out at all stages of development with a predominance of larval diapause (61.5 %). Such species as Vanessa atalanta and V. cardui have the status of ex-regional migrants. The latter species is characterized by diapause-free polycyclic development throughout the year. In addition, the forms of facultative bivoltinism and summer diapause are considered.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114585864","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-59-66
E. Sergeeva, N. Kalinin, E. Pischalnikova
The diagnosis and prediction of convective events are a difficult and challenging process. One of the most promising methods used for such tasks are hydrodynamic modelling and remote sensing. The aim of this research is to make a comparative analysis of meteorological events maps and data from observational network to find the possibility of using the maps from research center «Planet» for studying and predicting thunderstorms on the territory of the Ural. The spatiotemporal features of thunderstorms were identified. The repeatability and success of detection of this event were also determined, depending on the barium field, synoptic situation and specific characteristics of thunderstorms. During the study it was found that about 20 % of thunderstorms observed by weather stations were not predicted on weather maps; the high probability prediction was better than the medium and low probability forecasts of thunderstorms; spatial and temporal shifts were common in the prediction of thunderstorms. For a more detailed and objective analysis, it is recommended to work with a larger sample and use data from other sources like meteorological radiolocators, stormscopes, and others.
{"title":"ON THE POSSIBILITY OF USING MAPS OF METEOROLOGICAL EVENTS FROM RESEARCH CENTRE «PLANET» FOR STUDYING AND PREDICTING THUNDERSTORMS ON THE URAL TERRITORY","authors":"E. Sergeeva, N. Kalinin, E. Pischalnikova","doi":"10.35634/2412-9518-2022-32-1-59-66","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-59-66","url":null,"abstract":"The diagnosis and prediction of convective events are a difficult and challenging process. One of the most promising methods used for such tasks are hydrodynamic modelling and remote sensing. The aim of this research is to make a comparative analysis of meteorological events maps and data from observational network to find the possibility of using the maps from research center «Planet» for studying and predicting thunderstorms on the territory of the Ural. The spatiotemporal features of thunderstorms were identified. The repeatability and success of detection of this event were also determined, depending on the barium field, synoptic situation and specific characteristics of thunderstorms. During the study it was found that about 20 % of thunderstorms observed by weather stations were not predicted on weather maps; the high probability prediction was better than the medium and low probability forecasts of thunderstorms; spatial and temporal shifts were common in the prediction of thunderstorms. For a more detailed and objective analysis, it is recommended to work with a larger sample and use data from other sources like meteorological radiolocators, stormscopes, and others.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126746605","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-83-91
N. V. Ivanova, O. Komarova
The problem of the welfare of the population of any country is the most important strategic task of state development. The effectiveness of socio-economic development of the country’s economy and individual regions is determined by the standard of living of the population. Based on the analysis of a number of indicators and the rating of the subjects of Russia, included in the enlarged region Siberia, the typology of subjects on the standard of living of the population was performed, key demographic and socio-economic problems of the selected types of regions were formulated, the failure of the regional policy in Siberia was shown.
{"title":"SPATIAL ANALYSIS OF THE STANDARD OF LIVING OF THE POPULATION OF SIBERIA","authors":"N. V. Ivanova, O. Komarova","doi":"10.35634/2412-9518-2022-32-1-83-91","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-83-91","url":null,"abstract":"The problem of the welfare of the population of any country is the most important strategic task of state development. The effectiveness of socio-economic development of the country’s economy and individual regions is determined by the standard of living of the population. Based on the analysis of a number of indicators and the rating of the subjects of Russia, included in the enlarged region Siberia, the typology of subjects on the standard of living of the population was performed, key demographic and socio-economic problems of the selected types of regions were formulated, the failure of the regional policy in Siberia was shown.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115875812","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-76-82
N. D. Zhuravlev
This article is devoted to the quantitative evaluation of the newest changes in the global oil industry for the period from 2001 to 2020. The study of changes in territorial structures over time allows us to better understand the emerging trends in the industry and give more accurate forecasts of further development. The objects of the study are the sub-sectors - oil production and refining in two segments - the actual output and installed capacity of refineries. The author estimates territorial shifts based on the following indicators: V.M. Ryabtsev’s criterion and A.P. Gorkin’s coefficient of location inertia. In addition, a general overview of the changes in the role of individual states and macro-regions in the oil industry is presented. The results of the study indicate significant territorial shifts in all segments of the oil industry, despite its overall maturity.
{"title":"THE NEWEST TERRITORIAL SHIFTS IN THE GLOBAL OIL INDUSTRY: QUANTITATIVE EVALUATION","authors":"N. D. Zhuravlev","doi":"10.35634/2412-9518-2022-32-1-76-82","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-76-82","url":null,"abstract":"This article is devoted to the quantitative evaluation of the newest changes in the global oil industry for the period from 2001 to 2020. The study of changes in territorial structures over time allows us to better understand the emerging trends in the industry and give more accurate forecasts of further development. The objects of the study are the sub-sectors - oil production and refining in two segments - the actual output and installed capacity of refineries. The author estimates territorial shifts based on the following indicators: V.M. Ryabtsev’s criterion and A.P. Gorkin’s coefficient of location inertia. In addition, a general overview of the changes in the role of individual states and macro-regions in the oil industry is presented. The results of the study indicate significant territorial shifts in all segments of the oil industry, despite its overall maturity.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"23 22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133957667","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-21-30
N. Kuryatnikova, N. Malygina, D. V. Zolotov
The results of microscopic analysis of 207 samples of solid precipitation (snow) collected at three key points located in various natural conditions in the Altai krai during the snow cover period (2019-2020, 2020-2021) are presented. The study focuses on the determination of sagebrush pollen ( Artemisia sp.) as one of the main indicators of the state of geosystems, cryospheric processes during paleoclimatic and paleoecological reconstructions, and the main allergen. Pollen grains of trees and grasses were identified in the third part of the samples taken, and sagebrush was isolated in 20% of this number of samples. To determine the areas of its supply, an integrated approach based on the analysis of backwards trajectories of air masses movement (HYSPLIT model) and synoptic conditions (ERA 5 and NCEP/NCAR reanalysis) was used. Such an integrated approach made it possible to determine that sagebrush pollen was supplied with air masses coming from the territories of the Kazakh Upland (Kazakhskiy Melkosopochnik).
{"title":"POLLEN OF SAGEBRUSH (ARTEMISIA SP.) IN SOLID PRECIPITATION OF THE ALTAI KRAI AND AREAS OF ITS SUPPLY","authors":"N. Kuryatnikova, N. Malygina, D. V. Zolotov","doi":"10.35634/2412-9518-2022-32-1-21-30","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-21-30","url":null,"abstract":"The results of microscopic analysis of 207 samples of solid precipitation (snow) collected at three key points located in various natural conditions in the Altai krai during the snow cover period (2019-2020, 2020-2021) are presented. The study focuses on the determination of sagebrush pollen ( Artemisia sp.) as one of the main indicators of the state of geosystems, cryospheric processes during paleoclimatic and paleoecological reconstructions, and the main allergen. Pollen grains of trees and grasses were identified in the third part of the samples taken, and sagebrush was isolated in 20% of this number of samples. To determine the areas of its supply, an integrated approach based on the analysis of backwards trajectories of air masses movement (HYSPLIT model) and synoptic conditions (ERA 5 and NCEP/NCAR reanalysis) was used. Such an integrated approach made it possible to determine that sagebrush pollen was supplied with air masses coming from the territories of the Kazakh Upland (Kazakhskiy Melkosopochnik).","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128894032","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-42-49
Y. Perevedentsev, Z.I. Khannanova, T. Aukhadeev
The article assesses the correlation between meteorological factors (air temperature, atmospheric pressure, relative air humidity, wind speed, cloudiness) presented in the form of generalized bioclimatic indices (effective temperature, equivalent effective temperature, pathogenicity index) and the incidence of COVID-19 in the population during the period 2020-2021 on the territory of the Volga Federal District (VFD). Separately, the processes in the subjects of the Volga Federal District and in the whole district are considered. A negative correlation was found between the parameters under consideration, which indicates an increase in the epidemic in the cold period and a weakening in the warm period. The closest relationship is established between the parameters after 15 days (the time of the incubation period). The results generalized for the entire district are more reliable than for individual subjects.
{"title":"STATISTICAL ASSESSMENT OF THE INFLUENCE OF METEOROLOGICAL FACTORS ON COVID-19 MORBIDITY OF POPULATION IN THE VOLGA FEDERAL DISTRICT","authors":"Y. Perevedentsev, Z.I. Khannanova, T. Aukhadeev","doi":"10.35634/2412-9518-2022-32-1-42-49","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-42-49","url":null,"abstract":"The article assesses the correlation between meteorological factors (air temperature, atmospheric pressure, relative air humidity, wind speed, cloudiness) presented in the form of generalized bioclimatic indices (effective temperature, equivalent effective temperature, pathogenicity index) and the incidence of COVID-19 in the population during the period 2020-2021 on the territory of the Volga Federal District (VFD). Separately, the processes in the subjects of the Volga Federal District and in the whole district are considered. A negative correlation was found between the parameters under consideration, which indicates an increase in the epidemic in the cold period and a weakening in the warm period. The closest relationship is established between the parameters after 15 days (the time of the incubation period). The results generalized for the entire district are more reliable than for individual subjects.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128854493","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-92-106
Andriej Y. Korolev
The study focuses on uninhabited areas that need to be preserved as a buffer to reduce the negative effects of economic activity. The most environmentally friendly nature management for such places is nature-oriented tourism. In this connection, the purpose of the study is determined as follows: to study the large-scale hierarchy of uninhabited spaces in relation to territories of different levels. As an example, areas of different scales are characterized. Local - surrounding the city of Perm: homogeneous. Regional - surrounding the pole of inaccessibility of the Perm Territory: heterogeneous, the core is expressed, where the Vishersky reserve and the periphery are located. National-continental - located in Evenkia, homogeneous in structure, limited by settlements, roads and navigable water bodies. Planetary - located in Greenland, homogeneous in structure, limited by the coastline of the island.
{"title":"POLES OF INACCESSIBILITY AND AREAS OF NON-POPULATION: DEFINITION, STRUCTURE, AND SCALE HIERARCHY","authors":"Andriej Y. Korolev","doi":"10.35634/2412-9518-2022-32-1-92-106","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-92-106","url":null,"abstract":"The study focuses on uninhabited areas that need to be preserved as a buffer to reduce the negative effects of economic activity. The most environmentally friendly nature management for such places is nature-oriented tourism. In this connection, the purpose of the study is determined as follows: to study the large-scale hierarchy of uninhabited spaces in relation to territories of different levels. As an example, areas of different scales are characterized. Local - surrounding the city of Perm: homogeneous. Regional - surrounding the pole of inaccessibility of the Perm Territory: heterogeneous, the core is expressed, where the Vishersky reserve and the periphery are located. National-continental - located in Evenkia, homogeneous in structure, limited by settlements, roads and navigable water bodies. Planetary - located in Greenland, homogeneous in structure, limited by the coastline of the island.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132642210","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}
Pub Date : 2022-04-13DOI: 10.35634/2412-9518-2022-32-1-5-9
G. Firsov, A. S. Trofimova, L. Trofimuk
The Japanese Elm (Ulmus japonica (Rehd.) Sarg.) has been tested at Peter the Great Botanic Garden since 2000, and it has reached the size of a well developed single-trunk tree, 11 m high, at the age of about 25 years old. The first fruiting was observed in 2014 at the age of about 17 years. The first seed reproduction was obtained in 2021, with germination power 20,3-24,7 %. The height of seedlings of the first year reaches 128-162 mm on average, with maximum height up to 295-340 mm. This species is one of the most stable to Dutch elm disease and is promising for cultivation and for restoration of Elm’s population in Saint-Petersburg.
{"title":"THE JAPANESE ELM (ULMUS JAPONICA (REHD.) SARG.) AT PETER THE GREAT BOTANIC GARDEN (SAINT-PETERSBURG, RUSSIA)","authors":"G. Firsov, A. S. Trofimova, L. Trofimuk","doi":"10.35634/2412-9518-2022-32-1-5-9","DOIUrl":"https://doi.org/10.35634/2412-9518-2022-32-1-5-9","url":null,"abstract":"The Japanese Elm (Ulmus japonica (Rehd.) Sarg.) has been tested at Peter the Great Botanic Garden since 2000, and it has reached the size of a well developed single-trunk tree, 11 m high, at the age of about 25 years old. The first fruiting was observed in 2014 at the age of about 17 years. The first seed reproduction was obtained in 2021, with germination power 20,3-24,7 %. The height of seedlings of the first year reaches 128-162 mm on average, with maximum height up to 295-340 mm. This species is one of the most stable to Dutch elm disease and is promising for cultivation and for restoration of Elm’s population in Saint-Petersburg.","PeriodicalId":131329,"journal":{"name":"Bulletin of Udmurt University. Series Biology. Earth Sciences","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124578895","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}
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