Journal of Hydraulic and environmental engineering 4-том 1-нөмір (2026) · 3-19-беттер

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, Гафуров, З, Самиев, Л, Эшбоев, Н, Носиров, Н, Дониёрова, Х, Gafurov, Zafar, Samiev, Luqmon, Eshboyev, Navruz, Nosirov, Nozimbek, Doniyorova, Xolniso

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Аңдатпа

Water security is a critical concern in the Bandikhan district of Surkhandarya, Uzbekistan, where agriculture predominantly relies on groundwater resources. This study assesses the spatial and temporal trends of groundwater levels during both vegetation (April–September) and non-vegetation (October–March) periods from 2018 to 2023. Data from 63 observation wells were analyzed using the Mann–Kendall trend test, Sen’s slope estimator, and linear regression methods. Geographic Information System (GIS) tools were employed to map the spatial distribution of groundwater level changes. The results indicated that the average depth to groundwater during the vegetation period ranged from 1.06 m to 5.84 m, with a mean fluctuation of 2.45 m. During the non-vegetation period, depths ranged from 1.04 m to 5.68 m, with a mean fluctuation of 1.04 m. Significant trends were observed in the groundwater levels. Sen’s slope estimates varied from –0.26 to +0.34 m/year, indicating both rising and declining groundwater levels across the district. The average rate of decline was found to be 0.22 m/year, with a standard deviation of 0.07 m/year. These findings highlight the overexploitation of groundwater resources in certain areas due to intensive agricultural practices, leading to declining water tables. Conversely, some areas exhibited rising groundwater levels, possibly due to irrigation return flows or inadequate drainage systems. The study underscores the need for sustainable groundwater management, including the implementation of advanced irrigation techniques and the promotion of crops requiring less water. The results provide valuable insights for planners and decision-makers to develop effective land use and water resource management strategies, ensuring the long-term sustainability of groundwater resources in the Bandikhan district.

Groundwater level dynamicsMann--Kendall testSen's slope estimatorLinear regressionGISIrrigated landsWater resource managementStatistical methodsSpatial analysisДинамика уровня подземных вод

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Дәйексөз алу

APA 7 
Gafurov, Zafar, Samiev, Luqmon, Eshboyev, Navruz, Nosirov, Nozimbek, Doniyorova, Kholniso, Гафуров, З, Самиев, Л, Эшбоев, Н, Носиров, Н, Дониёрова, Х, Gafurov, Zafar, Samiev, Luqmon, Eshboyev, Navruz, Nosirov, Nozimbek & Doniyorova, Xolniso (2026). Assessment of Groundwater Level Trends Using Mann--Kendall Test, Sen's Slope Estimator, and GIS Mapping in the Bandikhan District, Surkhandarya, Uzbekistan. Journal of Hydraulic and environmental engineering, 4(1), 3-19.
GOST R 7.0.5 
Gafurov, Zafar, Samiev, Luqmon, Eshboyev, Navruz, Nosirov, Nozimbek, Doniyorova, Kholniso, Гафуров, З, Самиев, Л, Эшбоев, Н, Носиров, Н, Дониёрова, Х, Gafurov, Zafar, Samiev, Luqmon, Eshboyev, Navruz, Nosirov, Nozimbek, Doniyorova, Xolniso Assessment of Groundwater Level Trends Using Mann--Kendall Test, Sen's Slope Estimator, and GIS Mapping in the Bandikhan District, Surkhandarya, Uzbekistan // Journal of Hydraulic and environmental engineering. 2026. Т. 4. № 1. С. 3-19.
BibTeX 
@article{zafar2026,
  author  = {Gafurov, Zafar and Samiev, Luqmon and Eshboyev, Navruz and Nosirov, Nozimbek and Doniyorova, Kholniso and Гафуров, З and Самиев, Л and Эшбоев, Н and Носиров, Н and Дониёрова, Х and Gafurov, Zafar and Samiev, Luqmon and Eshboyev, Navruz and Nosirov, Nozimbek and Doniyorova, Xolniso},
  title   = {Assessment of Groundwater Level Trends Using Mann--Kendall Test, Sen's Slope Estimator, and GIS Mapping in the Bandikhan District, Surkhandarya, Uzbekistan},
  journal = {Journal of Hydraulic and environmental engineering},
  year    = {2026},
  volume  = {4},
  number  = {1},
  pages   = {3-19}
}
RIS 
TY  - JOUR
AU  - Gafurov, Zafar
AU  - Samiev, Luqmon
AU  - Eshboyev, Navruz
AU  - Nosirov, Nozimbek
AU  - Doniyorova, Kholniso
AU  - Гафуров, З
AU  - Самиев, Л
AU  - Эшбоев, Н
AU  - Носиров, Н
AU  - Дониёрова, Х
AU  - Gafurov, Zafar
AU  - Samiev, Luqmon
AU  - Eshboyev, Navruz
AU  - Nosirov, Nozimbek
AU  - Doniyorova, Xolniso
TI  - Assessment of Groundwater Level Trends Using Mann--Kendall Test, Sen's Slope Estimator, and GIS Mapping in the Bandikhan District, Surkhandarya, Uzbekistan
JO  - Journal of Hydraulic and environmental engineering
PY  - 2026
VL  - 4
IS  - 1
SP  - 3
EP  - 19
ER  -