TY JOUR TI Assessing state of water protection zones of Volga River within Ilyinka village area (Astrakhan region) KW water-protection zone KW pollution KW vegetation KW projective cover KW bioindication KW soil phytotoxicity JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Vasil'eva, E.G. AU Melnik, I.V. PY 2021 IS PB Astrakhan State Technical University