GIS-BASED ASSESSMENT OF AGRICULTURAL CROP WATER REQUIREMENTS FOR DROUGHT MONITORING

Nurullayev Marufjon, Gofirov Azim, Otokhonov Ogabek

Agro kimyo himoya va o‘simliklar karantini (O‘simliklar himoyasi va karantini) · 2026-yil

Annotatsiya

Global climate change has increased the frequency and severity of drought events, reducing water availability in arid regions. In Uzbekistan, more than 80% of agricultural production depends on irrigation; accurate estimation of crop water demand is therefore critical for food security and sustainable resource management [1, 5]. Crop water consumption was estimated using the Kostyakov empirical formula (E = K·Y) and the bioclimatic Alpatyev equation (E = Kb·Σd) [5, 9]. Seasonal irrigation norms were determined from the Kostyakov water balance equation [5]. Regional bioclimatic coefficients (Kb) were compiled for all provinces of Uzbekistan based on Xamidov et al. [2, 3]. A web-based GIS calculator was built with Leaflet.js and Turf.js. Validation on a 13.75 ha polygon in Khorezm region (cotton + wheat, K = 1.20) yielded an estimated annual demand of 189.8 thousand m³, consistent with normative values [2, 5]. The developed GIS model enables rapid, spatially explicit estimation of irrigation water demand and provides an effective tool for drought monitoring and irrigation planning.

Maqola ma’lumotlari
MualliflarNurullayev Marufjon, Gofirov Azim, Otokhonov Ogabek
JurnalAgro kimyo himoya va o‘simliklar karantini (O‘simliklar himoyasi va karantini)
Nashr sanasi2026-04-23
Son3
TilIngliz
DOI10.63241/akhvvol118y2026iss3m70

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