The aim of the study is to present the research results on long-term anthropogenic and military operation impacts on forest ecosystems of Novgorod-Siverske Polissia to improve management of border areas and understand further natural resource management. To achieve this goal, natural and anthropogenic forest covers were considered and analyzed, as well as existing objects of the nature reserve fund located on the territory of Novgorod-Siverske Polissia. Analysis of time series of remote data for mapping long-term trends and periodic components of the studied area showed that one of the most informative for detecting long-term changes are the average values for the entire analysis period and the average increments of leaf area index for a certain observation period. Changes in the leaf area index are considered on the example of the studied border area. Using the original multispectral satellite images, maps of the spatial distribution of the rate of leaf area index changes, integrated over 6 years due to both indirect and direct anthropogenic impact, complicated by hostilities, were constructed.
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