Mapping web service of socio-economic impacts of the creation of the Kama Reservoir (Case study of the Perm-Ilyinsky District of Molotov Region)

The article presents the results of the development and filling of a cartographic web service dedicated to the creation of the Kama Reservoir in the first half of the 1950s in the territory of the Perm-Ilyinsky district, most of which is located along the shores of the Obvinsky Bay. The source basis of the research consisted of data from federal, regional, municipal, and departmental archives, including both written documents and cartographic materials. In addition, materials from oral history were also used. Based on these, the localization and non-position data of flooded areas, settlements, migration routes of resettlers, relocated industrial enterprises, decommissioned and newly constructed roads, lost objects of social infrastructure and historical-cultural heritage, as well as memorial sites in the specified area were identified. Data processing was carried out using the desktop GIS QGIS, and the publication of materials was implemented through the NextGIS platform. The information presented in the cartographic web service allows for an assessment of the damage caused during the preparation of the Kama Reservoir for filling, as well as tracing the socio-economic consequences of its creation. In the case of the Perm-Ilyinsky district, 16 settlements were submerged, and another 28 were partially flooded. It was determined that the resettlement of local residents occurred in nearby settlements, with distances not exceeding 7 km. Specific settlements that received the majority of resettlers from neighboring villages and towns were identified. Additionally, it was found that the road network of the district was significantly changed, the number of educational institutions decreased, the number of industrial enterprises declined, and many objects of historical-cultural heritage in the village of Ilyinskoye were lost.