scholarly journals Biodiversity of the Fusarium fungi causing root rot of winter cereals in Belarus

2021 ◽  
Vol 104 (2) ◽  
pp. 124-127
Author(s):  
N. A. Krupenko* ◽  
S. F. Buga ◽  
A. G. Zhukovskiy ◽  
I. N. Odintsova ◽  
A. A. Zhukovskaya ◽  
...  
Keyword(s):  
Root Rot ◽  
Weather Conditions ◽  
Root Systems ◽  
Growing Season ◽  
Wheat Roots ◽  
Winter Cereals ◽  
Dry Conditions ◽  
The Republic ◽  
First Time ◽  
Fusarium Fungi

Fusarium fungi are the main causal agents of root rot of winter cereals in Belarus. As many as 12 different species were identified, with occurrence being dependent on the cereal host species and weather conditions during the growing season. Lack of precipitation from April to July led to decreasing fungal biodiversity. Fusarium pathogen complex on wheat roots was formed by F. culmorum, F. avenaceum, F. equiseti, F. oxysporum, whereas F. equiseti and F. oxysporum prevailed on triticale and rye, and F. solani, F. avenaceum and F. equiseti dominated on barley root systems. The infestation of root with F. oxysporum increased under dry conditions. In contrast, F. culmorum was isolated from root system of wheat and triticale more frequently when rainfall was sufficient. For the first time, F. cerealis and F. tricinctum were isolated from triticale, and F. cerealis from rye only, in the Republic of Belarus.

Irrigation regime and water consumption of potatoes in the Republic of Bashkortostan, depending on the reclamation condition of lands

2020 ◽  
Vol 0 (6) ◽  
pp. 13-19
Author(s):  
Guzel Gumerova ◽  
Georgiy Gulyuk ◽  
Dmitry Kucher ◽  
Anatoly Shuravilin ◽  
Elena Piven
Keyword(s):  
Water Consumption ◽  
Weather Conditions ◽  
Growing Season ◽  
Vegetation Period ◽  
Forest Steppe ◽  
Total Water ◽  
Total Water Consumption ◽  
Republic Of Bashkortostan ◽  
Irrigated Lands ◽  
The Republic

Data of long-term researches (2015–2018) in southern forest-steppe zone of the Republic of Bashkortostan, is justified theoretically and experimentally the mode of irrigation of potatoes on leached chernozems of unsatisfactory, satisfactory and good ameliorative condition of irrigated lands. For the growing periods of potatoes with different heat and moisture supply, the number of watering, the timing of their implementation, irrigation and irrigation norms are established. On lands with unsatisfactory meliorative state the number of irrigation depending on weather conditions of potato vegetation period varied from 0 to 3 (1.5 on average) with average irrigation norm – 990 m3/ha. With satisfactory meliorative state of lands the number of irrigation on average increased from 0 to 4 (2.3 on average) with irrigation norm – 1305 m3/ha. On lands with good meliorative state the number of irrigation was the highest – from 1 to 5 (3 on average) with average irrigation irrigation norm is 1653 m3/ha. It was noted that in the dry periods of potato vegetation the greatest number of watering was carried out (3–5 watering), and in the wet periods (2017) watering was not carried out except for the area with a good reclamation state, where only one irrigation was carried out by the norm of 550 m3/ha. Water consumption of potato was studied in dynamics as a whole during the growing season and the months of the growing season depending on weather conditions of vegetation period and land reclamation condition of irrigated lands, as well as in the control (without irrigation). The lowest total water consumption was in the area without irrigation and averaged 226.8 mm. In irrigated areas, its values increased to 319-353.4 mm. The average daily water consumption varied from 2.12 to 3.3 mm. The highest rates of potato water consumption were observed in June and July, and the lowest – in May and August. In the total water consumption of potatoes on the site without irrigation, the largest share was occupied by atmospheric precipitation and in addition to them the arrival of moisture from the soil. Irrigation water was used in irrigated areas along with precipitation, the share of which was 30.2–46.1 %.

scholarly journals Phytosanitary and economic foundations of melilot in the southern forest-steppe of Novosibirsk region

2018 ◽  
pp. 43-49 ◽  
Author(s):  
S. N. Posazhennikov ◽  
E. Iu. Toropova ◽  
О. A. Kazakova
Keyword(s):  
Spring Wheat ◽  
Root Rot ◽  
Biological Effects ◽  
Wheat Yield ◽  
Economic Assessment ◽  
Growing Season ◽  
Bipolaris Sorokiniana ◽  
Forest Steppe ◽  
Novosibirsk Region ◽  
Fusarium Fungi

The research aims at evaluation of biological and economic efficiency of melilot cultivation in the southern forest-steppe of Novosibirsk region. The research was conducted in 2010 – 2016 by means of conventional methods. The biological effects of melilot in treatment of wheat underground organs from root rot was 13.9-38.8% (average 31.3%) in the beginning of growing season; in the end of the growing season it was 32.1-66% (average 43%) in comparison with recultivation of spring wheat. The pathogenic complex of root rot consisted of B. sorokiniana (18.343%) and Fusarium fungi (63.9-81.7%). The authors found out F. gibbosum, F. sporotrichioides,F. oxysporum, F. avenaceum, F. solani.mong fungi among Fusarium. The research revealed domination of Trichoderma fungi among the antagonistic species. The effect of melilot as a fore crop in increasing spring wheat yield was observed as 31-68,7% (average 44%) with a simultaneous decrease in Bipolaris sorokiniana grain population and Fusarium fungi in 2 times in comparison with re-cultivation of spring wheat. The authors highlight that economic evaluation of melilot cultivation in the southern forest-steppe of Novosibirsk region is 80.7% profitable in case melilot is grown as a fore crop of spring wheat. IThe authors observed reducing grain costs on 53.4 RUB/ hwt compared to recultivation of wheat. Comprehensive economic assessment of melilot cultivation showed higher profitability caused by sale of honey and haylage harvesting.

DESTRUCTIVE HYDROTHERMAL FACTORS OF THE GROWING SEASON ONE MONTH BEFORE HARVEST, INCREASING THE LOSS OF APPLE FRUITS FROM "SUNBURN" DURING STORAGE

1970 ◽  
pp. 23-26
Author(s):  
А. L. Nikitin ◽  
М. А. Makarkina
Keyword(s):  
Calculated Data ◽  
Weather Conditions ◽  
Growing Season ◽  
Hydrothermal Conditions ◽  
Dry Conditions ◽  
Apple Cultivars ◽  
Warm Night ◽  
Hot Weather ◽  
Apple Fruits

Weather conditions affect both the resistance of apple fruits to physiological disorders during their storage, and the decrease in resilience to them. The damage of the fruits of susceptible apple cultivars by "scald" (browning of the skin) at the end of storage is influenced by weather conditions 30 days before harvesting them. In hot weather During the hot day and warm night, the fruits are more affected by "tan". Losses increase if the sum of the average daily temperatures >+10° C for the month before harvesting exceeds the threshold of 360-380°C. The analysis of the damage to the fruits by “scald "of susceptible new scab-immune columnar apple cultivars of the VNIISPK breeding – Vostorg, Poesia and Priokskoye at the end of their storage in various years (2014, 2016, 2018) showed a close dependence of this disorder on the conditions of humidification of the active growing season a month before harvest, expressed using the indicator of the conditional moisture balance, i.e. Selyaninov hydrothermal coefficient (SHC). The damage to fruits by "sunburn" directly depends on the level of SHC. The dependence is approximated by the second-order parabola equation. The equations for calculating the quantitative losses of apple fruits from "scald" (at the end of storage) under hydrothermal conditions for a month before harvesting are obtained. The correlation relations between the empirically obtained and calculated data are from 0.99 to 1. The tops of the parabolas reflecting the maximum calculated damage of fruits by "scald" at the end of storage in relation to the coordinate axes have maximum peaks – from 11.17 (Priokskoye) to – 15.21-15.24% (for Vostorg and Poesia, respectively) with a SHC corresponding to dry conditions – 0.68; 0.69 and 0.70 (Priokskoye, Poesia and Vostorg, respectively). The higher the SHC, the lower the dependence curve and the damage to the fruits by "scald". The calculated data can be interpolated, and the SHC can be used as one of the predictor indicators that affect the quality of fruits during storage.

scholarly journals Estimating the abundance of the typographer bark beetle in the spruce forests of the Republic of Tatarstan

2020 ◽  
Vol 27 ◽  
pp. 00138
Author(s):  
Aigul Mukhametshina ◽  
Haris Musin ◽  
Insaf Taziev ◽  
Renat Gafiatov
Keyword(s):  
Bark Beetle ◽  
Russian Federation ◽  
Weather Conditions ◽  
Growing Season ◽  
Peak Number ◽  
Spruce Forests ◽  
The Russian Federation ◽  
The Republic ◽  
A Site ◽  
Forest Diseases

The article provides an estimation of abundance the typographer bark beetle using barrier traps in the spruce forests of the Republic of Tatarstan. For the last 10 years, there has been the shrinkage of spruce forests throughout the Russian Federation due to adverse factors, primarily the weather. In the forests of the Republic of Tatarstan, the main reasons for the unsatisfactory condition of forest stands are forest diseases – 20,276.7 ha and weather conditions – 16,824.1 ha, corresponding to 51.7% and 42.9% of the area of all plantations with disrupted and lost stability. The research studies were carried out in the “Sabinskiy Forestry Enterprise” and “Lubyankskiy Forestry Enterprise” of the Republic of Tatarstan. According to our observations for the whole growing season, the largest number of beetles is concentrated on a site of pure plantings at the age of 40 years and is estimated at 1,645 pcs. On all three sites, the peak number of beetles takes place on July 5, 2019 corresponding to 3,684 pcs. In 2019, there was damping of some foci of this pest on 330.1 ha. At the same time, the new foci were identified, which accounted for 9.5% of the total area of bark beetle foci. As a result, at the end of 2019, the total area of foci of this pest in the forests of the Republic of Tatarstan was 1,018.9 ha, which is 28% less than the same indicator last year.

scholarly journals Ecological testing of soybean varieties of the northern ecotype in Central Yakutia

2021 ◽  
pp. 34-37
Author(s):  
Alexey Nikolaevich Neustroev ◽  
Valentina Ivanovna Alekseeva ◽  
Ivan Fedorovich Bardeev
Keyword(s):  
Plant Height ◽  
Weather Conditions ◽  
Growing Season ◽  
Field Work ◽  
Morphological Description ◽  
Field Hospital ◽  
Lena River ◽  
Central Yakutia ◽  
Soybean Plants ◽  
The Republic

Objective: to conduct an environmental test of soybean varieties of the Northern ecotype in the conditions of the cryolithozone of Central Yakutia. Objects of research soybean varieties of the Northern ecotype Killer whale and Dina. The work was carried out according to the generally Accepted methods of VIR named after N. I. Vavilov. Field work was carried out in 2018-2020 at the scientific field hospital of the Yakut research Institute named after M. G. Safronov, located on the second above-floodplain terrace of the Lena river in Khangalassky ulus of the Republic of Sakha (Yakutia). The soil of the experimental site, according to the morphological description, is permafrost-taiga pale yellow solodized, according to the granulometric composition, medium loamy, cultivated. The growing season over the years of research differed significantly in terms of heat and moisture supply. The duration of the growing season (seedling-full ripeness) was influenced by the characteristics of the variety and weather conditions. On average, over 3 years of study, the Kasatka variety has a growing season of 96 days, and Dina's is 9 days longer (105 days). The plant height and attachment height of the lower beans are signs of manufacturability of soybean plants. It was found that, depending on weather conditions, these indicators changed. In the year with the maximum sum of active temperatures (1585.9 ° С), both varieties of soybeans had the highest plant height and attachment of the lower pod. According to these signs, a negative reaction was noted in the Dina variety to arid conditions of the growing season (HTC - 0.49), in the Kasatka variety to the minimum amount of active temperatures (1503 ° C). For technology, the Kasatka variety is distinguished, in which the attachment height of the lower bob is 15.7 cm, which is 2 cm higher than that of Dina. According to the results of the analysis of the elements of the yield structure, on average over the years of research, the soybean varieties formed 14.5-16.0 beans / plant, 4.3-4.5 g / plant seeds, 1000 seeds weight 151-158 g. The Dina variety is distinguished for these indicators

scholarly journals Сорта картофеля для переработки

2020 ◽  
Author(s):  
V.K. Serderov ◽  
T.G. Khanbabaev ◽  
D.V. Serderovа
Keyword(s):  
Dry Matter ◽  
Arid Zone ◽  
Humus Content ◽  
Weather Conditions ◽  
Growing Season ◽  
Climatic Conditions ◽  
Matter Content ◽  
Potato Cultivars ◽  
Dry Matter Content ◽  
The Republic

Наряду с правильной организацией базой хранения, для эффективного использования картофеля большое значение имеет его переработка. Содержание сухого вещества один из показателей качества пригодности сортов картофеля для его переработки. В статье обобщены результаты оценки урожайности сортов картофеля в климатических условиях высокогорья Республики Дагестан и содержания в клубнях сухого вещества как критерия пригодности сортов для переработки на картофелепродукты. Исследования проводили в опорном пункте Курахский , МО Курахский район Республики Дагестан, расположенном на высоте 2000 2200 м над уровнем моря в 2017 и 2018 годах. Контроль районированный в республике среднеранний сорт Волжанин. Схема посадки 70 30 см, повторность четырехкратная. Почвенный покров представлен горными каштановыми среднесуглинистыми почвами. Содержание гумуса 2,91-3,01. Питательными веществами почвы обеспечены в средней степени: гидролизуемого азота 2,2-3,5 мг, подвижного фосфора 4-6 мг и обменного калия 12,5-16,5 мг на 100 г. Погодные условия вегетационных периодов были благоприятные для возделывания картофеля. Средняя температура воздуха во время посадки (май) составила 11-12 С, а во время вегетации летние месяцы 14-16 С. Опытные участки расположены опыты в засушливой зоне, так как выпадающие осадки во время вегетации (в среднем 60-80 мм в месяц) недостаточны для роста и развития картофеля. За время вегетации были проведены пять поливов по бороздам из расчета 50 л на м2 (500 м3/га). По урожайности (31,438,7 т/га) в сравнении с контролем выделились сорта: Импала, Ирбитский, Жуковский ранний, Манифест, Матушка, Невский, Примобелла, Розара, Сильвана, Спиридон и Удача. По содержанию сухого вещества (25,829,1) в сравнении с контролем выделились сорта: Алена, Нарт, Гиоконда, Матушка, Росси, Вектор, Примобелла, Импало и Дезире.Along with the correct organization of storage base, for the effective use of potatoes, its processing is of great importance. The dry matter content is one of the indicators of the quality of potato cultivars suitability for processing. The article summarizes the results of assessment of the yield of potato cultivars in the climatic conditions of the highlands of the Republic of Dagestan and the content of dry matter in tubers as a criterion for the suitability of cultivars for processing into potato products. The research was carried out in the reference point Kurakhsky, MO Kurakhsky district of the Republic of Dagestan, located at an altitude of 2000-2200 m above sea level in 2017 and 2018. Control-zoned in the Republic of mid-early cultivar Volzhanin. Planting scheme is 70 30 cm, repeat-four times. The soil is mountain brown medium loamy. Humus content is 2.91-3.01. Soil nutrients are provided to an average extent: hydrolyzed nitrogen 2.2-3.5 mg, mobile phosphorus 4-6 mg and exchange potassium 12.5-16.5 mg per 100 g. The weather conditions of the growing season were favourable for potato growing. The average air temperature during planting (May) was 11-12 C, and during the growing season the summer months was 14-16 C. Experimental plots are located in the arid zone, as precipitation during the growing season (on average 60-80 mm per month) is not sufficient for the growth and development of potatoes. During the growing season, five furrow irrigation was carried out at the rate of 50 l per m2 (500 m3/ha). In terms of yield (31.438.7 t/ha) in comparison with the control, the following cultivars were distinguished: Impala, Irbitsky, Zhukovsky ranniy, Manifest, Matushka, Nevsky, Primobella, Rosara, Silvana, Spiridon and Udacha. According to the dry matter content (25.829.1) in comparison with the control, the following cultivars were distinguished: Alena, Nart, Gioconda, Matushka, Rossi, Vector, Primobella, Impala and Desire.

scholarly journals Stem base diseases of winter wheat grown after forecrops of the family Brassicaceae

2012 ◽  
Vol 58 (2) ◽  
pp. 307-318 ◽  
Author(s):  
Barbara Majchrzak ◽  
Bogusław Chodorowski ◽  
Adam Okorski
Keyword(s):  
Winter Wheat ◽  
Root Rot ◽  
Weather Conditions ◽  
Residue Management ◽  
Intensity Of Infection ◽  
Wheat Roots ◽  
Stem Base ◽  
False Flax ◽  
The Family ◽  
Sanitary State

A study into the sanitary state of roots and culm base of winter wheat was carried out in 1999-2002 in the Production and Experimental Station in Bałcyny near Ostróda. Experimental wheat was cultivated after spring cross plants such as spring oilseed rape (<i>Brassica napus</i> ssp. <i>oleiferus</i> Metz.), white mustard (<i>Sinapis alba</i> L), chinese mustard (<i>Brassica juncea</i> L.), oleiferous radish (<i>Raphanus sativus</i> var. <i>oleiferus</i> L.), false flax (<i>Camelina sativa</i> L.), crambe (<i>Crambe abbysinica</i> Hoechst.) and after oats (<i>Avena sativa</i> L.) as a control. The other experimental factor was the method of after-harvest residue management, i.e. ploughing in the stubble, ploughing in the stubble and straw, ploughing in the stubble and straw with nitrogen added. The occurrence of root rot and stem base diseases was affected by weather conditions and forecrop species. Winter wheat roots were attacked to the lowest degree when spring rape and radish were used as forecrops, and to the highest degree - when grown after oat. The culm base was most intensely infected with fusarium foot rot (<i>Fusarium</i> spp.). The remaining root-rot diseases occurred every year but with different intensity. The method of utilization of after-harvest residues did not have a clear effect on the intensity of infection of the roots and culm base of winter wheat.

Eggplant: improvement of agricultural techniques

2021 ◽  
pp. 26-28
Author(s):  
М.Ш. Шабанова ◽  
Д.С. Магомедова ◽  
С.А. Курбанов
Keyword(s):  
Soil Moisture ◽  
Humus Content ◽  
Weather Conditions ◽  
Growing Season ◽  
Steppe Zone ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Early Variety ◽  
Irrigation Water Use ◽  
The Republic

Приведены результаты влияния режимов капельного орошения и норм органоминеральных удобрений на продуктивность баклажана при выращивании в сухостепной зоне Терско-Сулакской низменности Республики Дагестан. Цель исследований – разработка приемов агротехники возделывания баклажана, обеспечивающих при уровне предполивной влажности почвы в диапазоне 80–100% НВ и расчетном режиме орошения получение планируемой урожайности не менее 60 т/га высококачественных плодов. Объект исследований – среднеранний сорт баклажана Алмаз. Двухфакторный полевой опыт проводили в 2013–2015 годах на зональных лугово-каштановых среднесуглинистых почвах ОАО «Учебно-опытное хозяйство» (Кировский район Республики Дагестан). Почвы опытного участка характеризовались невысоким содержанием гумуса – 1,9%, средней обеспеченностью легкогидролизуемым азотом – 49 мг/кг почвы, низкой обеспеченностью подвижным фосфором – 15 мг/кг и средней обеспеченностью обменным калием – 207 мг/кг почвы. Агрофизические показатели плодородия орошаемой почвы: объемная масса корнеобитаемого слоя – 1,25 т/м3, наименьшая влагоемкость – 17,9%. В качестве органических удобрений использовали полуперепревший навоз, из минеральных удобрений – аммиачную селитру и мочевину, двойной суперфосфат и хлористый калий. Все анализы, учеты и наблюдения проводили в соответствии с общепринятыми методиками. Установлено, что возрастание нижнего порога влажности почвы и применение удобрений способствуют повышению эффективности использования оросительной воды в 2,5 раза, усилению фотосинтетической деятельности и, в частности, повышению КПД ФАР до 1,2%. Наилучшее сочетание урожаеобразующих факторов – поддержание в течение вегетации нижнего порога влажности корнеобитаемого слоя почвы не ниже 80 и 90% НВ на фоне 40 т/га навоза + N320P120K210. 24–66 поливов в течение вегетации баклажана (в зависимости от погодных условий и порога влажности) поливными нормами 146 и 73 м3/га соответственно, внесение под вспашку 40 т/га навоза и половинной нормы минеральных удобрений с тремя азотными подкормками обеспечивают наибольшую урожайность плодов – 62,3–63,6 т/га. The results of the influence of drip irrigation regimes and organic mineral fertilizers on the productivity of eggplant when grown in the dry-steppe zone of the Tersko-Sulak lowland of the Republic of Dagestan are presented. The purpose of the research is to develop methods of agricultural techniques for eggplant cultivation, which ensure that the planned yield of at least 60 t/ha of high-quality fruits is obtained at the level of pre-irrigation soil moisture in the range of 80–100% WC and the calculated irrigation regime. The object of research is the medium-early variety of eggplant Almaz. A two-factor field experiment was conducted in 2013–2015 on zonal meadow-chestnut medium-loamy soils of JSC Educational and Experimental Farm (Kirovsky district of the Republic of Dagestan). The soils of the experimental site were characterized by a low humus content – 1.9%, an average supply of easily hydrolyzed nitrogen – 49 mg/kg of soil, a low supply of mobile phosphorus – 15 mg/kg and an average supply of exchangeable potassium – 207 mg/kg of soil. Agrophysical indicators of the fertility of the irrigated soil: the volume mass of the root layer – 1.25 t/m3, the lowest moisture capacity – 17.9%. As organic fertilizers, semi-rotted manure was used, from mineral fertilizers – ammonium nitrate and urea, double superphosphate and potassium chloride. All analyses, records and observations were carried out in accordance with generally accepted methods. It was found that the increase in the lower threshold of soil moisture and the use of fertilizers contribute to an increase in the efficiency of irrigation water use by 2.5 times, an increase in photosynthetic activity, and, in particular, an increase in the efficiency of headlights up to 1.2%. The best combination of crop-forming factors is to maintain the lower moisture threshold of the root layer of the soil during the growing season at least 80 and 90% WC against the background of 40 t/ha of manure + N320P120K210. During the growing season of eggplant, 24–66 waterings (depending on weather conditions and humidity threshold) with irrigation rates of 146 and 73 m3/ha, respectively, and the introduction of 40 t/ha of manure and half the rate of mineral fertilizers with three nitrogen fertilizations, provides the highest fruit yield – 62.3–63.6 t/ha.

scholarly journals Heterogeneous Uptake of N2O5 in Sand Dust and Urban Aerosols Observed during the Dry Season in Beijing

Atmosphere ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 204 ◽  
Author(s):  
Men Xia ◽  
Weihao Wang ◽  
Zhe Wang ◽  
Jian Gao ◽  
Hong Li ◽  
...  
Keyword(s):  
Weather Conditions ◽  
Urban Site ◽  
Storm Event ◽  
Uptake Coefficient ◽  
Air Masses ◽  
Dinitrogen Pentoxide ◽  
Sand Storm ◽  
Dry Conditions ◽  
First Time ◽  
Aerosol Volume

The uptake of dinitrogen pentoxide (N2O5) on aerosols affects the nocturnal removal of NOx and particulate nitrate formation in the atmosphere. This study investigates N2O5 uptake processes using field observations from an urban site in Beijing during April–May 2017, a period characterized by dry weather conditions. For the first time, a very large N2O5 uptake rate (k(N2O5) up to ~0.01 s−1) was observed during a sand storm event, and the uptake coefficient (γ(N2O5)) was estimated to be 0.044. The γ(N2O5) in urban air masses was also determined and exhibited moderate correlation (r = 0.68) with aerosol volume to surface ratio (Va/Sa), but little relation to aerosol water, nitrate, and chloride, a finding that contrasts with previous results. Several commonly used parameterizations of γ(N2O5) underestimated the field-derived γ(N2O5). A new parameterization is suggested for dry conditions, which considers the effect of Va/Sa, temperature, and relative humidity.

The Sayan borderlands: Tuva’s ethnocultural landscapes in changing natural and sociocultural environments

2020 ◽  
Vol 13 (1) ◽  
pp. 29-36
Author(s):  
D. A. Dirin ◽  
Paul Fryer
Keyword(s):  
Cultural Landscapes ◽  
Field Studies ◽  
Social Environments ◽  
Key Factors ◽  
Role Of Government ◽  
Literary Sources ◽  
Population Migrations ◽  
The Republic ◽  
Sociocultural Processes ◽  
First Time

The paper is devoted to ethno-cultural landscapes of the Republic of Tuva. Ethnocultural landscapes (ECLs) are specific socio-environmental systems that developed as a result of the interaction of ethnic groups with their natural and social environments and are in a constant process of transformation. An attempt is made to identify the mechanisms of the formation, functioning and dynamics of ethnocultural landscapes in the specific conditions of the intracontinental cross-border mountain region, as well as to establish the main factors-catalysts of their modern changes. For the first time an attempt is made to delimit and map the ethnocultural landscapes of Tuva. For this, literary sources, statistical data and thematic maps of different times are analyzed using geoinformation methods. The results of 2014-2018 field studies are also used, during which interviews with representatives of different ethno-territorial, gender, age and social groups were taken. It is revealed that the key factors of Tuva’s ethnocultural landscape genesis are the natural isolation of its territory; the features of its landscape structure; the role of government; population migrations from other regions and the cultural diffusion provoked by them. 13 ethnocultural landscapes are identified at the regional level. Their modern transformation is determined by the shift of climatic cycles, aridisation, globalisation of sociocultural processes, changes in economic specialisation and ethnopsychological stereotypes.

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