Abstracts of dissertations 18. 01. 2023 Tillyakhodjaeva Zukhrakhon Djahangirovna – Analysis of the nozogeographical situation using the hydrochemical assessment of surface waters in the Tashkent region Abdikulov Farrukh Ilkhomjon ogli – Bioclimatic conditions of the Samarkand region and the possibilitiesof their use in the development of tourism Ganiev Shahob Rabimkulovich – Hydrological regime, water resources of the rivers of the Middle Zeravshan basin and their rational use