Abstract: The review of the materials of the Anabar-Olenek land management expedition of 1934 that have survived to the present time is given, which may be of interest as sources for studying the population of local territories in comparison with the censuses of 1926-1927 and 1939. An attempt is made to show the value of the source in the study of the population of local territories for the reconstruction of the settlement of indigenous people of the North before collectivization and transfer to a sedentary lifestyle.
The study of the materials of the land management expedition was carried out using statistical, comparative-historical, retrospective and cartographic methods, methods of analysis and description. The author examines in detail the characteristics of the population and settlement of the Anabar district, describes in detail how the traditional settlement system was organized and the traditional land use associated with it. The author pays special attention to the form of economic organization of the population – belekh.
It is established that the grouping of households in belek was a forced step of survival and joint management dictated by natural and economic conditions.
The main conclusions of the study are the reconstruction of the settlement of the population of the area in 1934. A special contribution of the author in the study of the topic is the comparison of the data of the report of 1934 with the materials of the population censuses of 1926-1927 and 1939.
The information contained in the reports of the Anabar-Olenek land management expedition fills in the gaps in the characteristics of the population of the Anabar district and is introduced into scientific circulation as a valuable source for studying the history of the population of the North.

Abstract: The purpose of this study is to identify optimal strategies for the survival and development of small settlements in the Arctic region facing threats of a sharp change in the water balance of adjacent territories caused by Climatic changes. The territory of Yakutia occupies majority areas not only in the Arctic zone of Russia, but also in the world. The impact of Climate change in Yakutia will accordingly affect the local, regional, Russian and global levels. As an illustrative example, the small Yakut village of Khotochu, located on the banks of the Lena river and regularly exposed to the threat of flooding, is taken. To this end, the authors of this study collected materials from the archive of the municipality "Zhemkonsky 1st nasleg", which includes the village of Khotochu, official documents of departmental organizations, annual reports of heads of municipalities and already published scientific articles. Also in September 2021, field materials (interviews and questionnaire survey data) were collected directly in the village and in the surrounding areas. As a result, the authors identified the current socio-economic situation of this settlement, its history, the main problems faced by the villagers, the measures taken by administrative authorities at various levels, as well as the opinion of local residents. The vulnerability of the village of Khotochu to the negative consequences of water resources is characterized. Based on the study of the experience of adaptation of the residents of the village of Khotochu to the floods of the twentieth century, the decisions taken by the authorities to ensure the safety of population in Yakutia, based on the results of the study, recommendations were made to administrative and governing bodies of various levels to minimize hydrological risks and adopt more effective adaptive strategies.

Abstract: The subject of this research is displacement of the indigenous small-numbered peoples in the constituent entities of the Russian Federation neighboring with Yakutia. The object is the indigenous small-numbered peoples of the North residing in Krasnoyarsk Krai, Irkutsk Oblast, Zabaykalsky Krai, Amur Oblast, Khabarovsk Krai, Magadan Oblast, and Chukotka Autonomous Okrug. These constituent entities of the Russian Federation have contiguous territories with the Sakha Republic. The author examines the displacement and size of the indigenous population of the regions of the Russian Federation neighboring with Yakutia. Special attention is given to clarification of the places of traditional dwelling of the indigenous small-numbered peoples in the aforementioned regions of the Russian Federation. It is established that the following ethnic groups reside in the territory contiguous to Yakutia: Dolgans, Evenks, Evens, Yukaghirs and Chukchi. The areas of residence of the listed ethnic groups border with the areas of settlement of the corresponding indigenous small-numbered peoples of the North in the territory of the Sakha Republic (Yakutia). The author’s special contribution lies in the analysis of displacement and size of the indigenous population in the regions of the Russian Federation neighboring with Yakutia on the local level. The novelty of consists in the territorial analysis of the places of traditional dwelling of the indigenous small-numbered peoples of the North.

Abstract: The subject of the study is the structure and content of the GIS developed by the author "Settlements subject to flooding and flooding on the territory of the Republic of Sakha (Yakutia)". The object of the study is 128 flooded settlements included in the List of established flood zones on the territory of the Republic of Sakha (Yakutia), their analytical processing and cartographic interpretation. The sources for the creation of GIS were published sources, statistical data, data of departmental organizations, passports of socio-economic development of municipalities and archival documents.
The author conducted various types of geoinformation analysis (analysis of the geography of settlements by river basins, the dynamics of the number of floods of settlements (since 1929-2017), the density of flooded settlements) in ArcGIS. It was revealed that most of the flooded and flooded settlements are located in the middle reaches of the Lena River and along its major tributaries – the Aldan, Amga, Olekma; in the northeastern part of Yakutia, flooded settlements are located mainly in the upper reaches of the Yana, Indigirka, Alazeya rivers, as well as in the lower and middle reaches of the river.Kolyma and their tributaries. It was found that in some localities the number of floods from 1930 to 2017 ranged from 30 to 40. It is shown that the highest density of settlements subject to flooding and flooding is observed in Central Yakutia in the places of the greatest concentration of the population of the republic.
The developed GIS of settlements exposed to flooding can be used to make recommendations to ensure the protection of settlements from flooding and flooding.

Abstract: The subject of the study is the location and population of the Anabar ulus in dynamics. The purpose of the study is to study the dynamics of the number and settlement of the population of the area under consideration using GIS technologies. The author conducted a study based on archival, statistical and cartographic sources. Verification of the reconstruction of the settlement network was carried out during field research in Anabarsky ulus in September 2020. The results of the work are presented by thematic layers in the GIS developed by the author, reflecting the dynamics of settlement from 1926 to 2020. The attribute tables contain data on the population, information about the location of settlements. В  The novelty of the study consists in the reconstruction of the settlement of the population of the Anabar district from 1926-2020 on the basis of multi-time maps and census data. It is established that as a result of the policy of transferring the nomadic population to a sedentary lifestyle and the enlargement of farms carried out during the Soviet period, there was a decrease in the number of settlements, while an increase in the population of settlements is traced. The compiled maps demonstrate a decrease in the area of population settlement in the territory of the studied area. A number of research sources are being introduced into scientific circulation for the first time and are used in the analysis of the settlement and population of the studied area.