Thematic maps as a means of formation of cross-border geoinformation space of the South Far East of Russia and Northeast of China
N.V. MISHINA1, K.S. GANZEI1, LI FUJIA2, T.K. MUZYCHENKO1, V.V. ZHARIKOV1, K.Yu. BAZAROV1
1Pacific Geographical Institute, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
2Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences, Beijing, China
Keywords: thematic mapping, geosystems, land use, geoecological tension, GIS, remote sensing
Abstract
Based on the geographical approach and concept of cross-border geosystems integrating heterogeneous spatial data, the role of thematic cartography in the formation of a single transboundary geographic information space of the South Far East and Northeast China is considered. The methodology of creation and integration of digital thematic layers was demonstrated, including maps of modern land use and its dynamics (2000 - 2024) and a map of geoecological tensions in the research area. It used GIS technology (ArcGIS), remote sensing data (Landsat), open global data sets (Global Forest Change, Global Surface Water, LandScan Population Database, OpenStreetMap, VIIRS Nighttime Lights), national statistics of the Russian Federation and PRC. The key results show that over the study period, 12 % of the area experienced land-use changes, the most significant of which were deforestation and reforestation, and agricultural land expansion. Significant differences were identified between the Russian and Chinese parts of the geosystems: in the Chinese territory there is a higher proportion of land with medium and high geoecological stress, which is related to intensive agricultural use and high population density. It is shown that the thematic maps created during the study not only visualize spatial data, but also become an analytical basis for monitoring, forecasting and management decisions in the field of sustainable development of border areas. The work confirms that thematic mapping within the framework of the creation of a transboundary geoinformation space allows to overcome methodological fragmentation of approaches, heterogeneity and fragmentation of data, ensuring consistent analysis on both sides of the border.
|
