Assessment of Groundwater Level Trends Using Mann--Kendall Test, Sen's Slope Estimator, and GIS Mapping in the Bandikhan District, Surkhandarya, Uzbekistan Gafurov Zafar, Samiev Luqmon, Eshboyev Navruz, Nosirov Nozimbek, Doniyorova Kholniso (Author) 3-19 2026-06-30