Assessment of geoecological conditions and the depletion risk of the river Belaya catchment areaElvira Nafikova, Alexey Elizaryev, Ayaz Ismagilov, Inna Dorosh, Aidar Khaidarshin and Dmitriy AlexandrovE3S Web Conf., 157 (2020) 02003DOI: https://doi.org/10.1051/e3sconf/202015702003