Monitoring of ecosystem restoration after oil pollution (for the Krapivinskoye field as an example)
T. O. PEREMITINA, I. G. YASHCHENKO
Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: remote sensing, monitoring, oil pollution, vegetation index
Abstract
The article presents the results of long-term monitoring of ecosystem recovery following an accidental oil spill at the Krapivinskoye field (Tomsk Region) using remote sensing methods. The normalized difference vegetation index (NDVI), calculated from MODIS spectroradiometer data for the period 2020-2025, was used as an integral indicator of vegetation condition. A detailed analysis of the seasonal and interannual dynamics of the index was carried out, identifying seven phenological intervals within the growing season. It was found that the average annual NDVI value decreased by 2.41 % over the six-year observation period, indicating the long-term oil pollution impact. Despite some periods of improvement in the indicators, the ecosystem did not reach its original productivity level by 2025. The effectiveness of the satellite monitoring methodology for the operational assessment of vegetation condition and the efficiency of reclamation measures on disturbed lands is demonstrated.
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