Quantitative and Qualitative Characteristics of Organic Matter Under Long-Term Exposure to Natural and Anthropogenic FactorsMikhail Mazirov, Nikolay Matyuk, Laziza Gafurova, Valeriy Polin and Obid KhakberdievBIO Web of Conferences, 78 (2023) 05007DOI: https://doi.org/10.1051/bioconf/20237805007