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| تعداد شماره‌ها | 886 |
| تعداد مقالات | 8,696 |
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Water scarcity and agricultural productivity in Uzbekistan: Open-data evidence from regional wheat production and irrigated area, 2010-2024 | ||
| Caspian Journal of Environmental Sciences | ||
| دوره 24، شماره 4، دی 2026، صفحه 1199-1208 اصل مقاله (1.22 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22124/cjes.2026.10052 | ||
| نویسندگان | ||
| Omon Sultonov* 1؛ Fakhriddin Isaev2؛ Kholboy I. Ibraimov3؛ Saodat Toshalieva4؛ Anvar Z. Avlokulov5؛ Begoyim Tuychiyeva6؛ Najmiddin Jumakulov7 | ||
| 1University of Business and Science (UBS), Tashkent city, Chilanzor district, Yakkabog' MFY Gavhar Street, House 1, Uzbekistan | ||
| 2Department of Finance and Tourism, Termez University of Economics and Service, Termez, Uzbekistan & Research Center CEDR Under the Tashkent State University of Economics, Tashkent, Uzbekistan & International Islamic Academy of Uzbekistan, Tashkent, Uzbekistan | ||
| 3National Institute of Pedagogy and Character Education named after Kori Niyozi, Tashkent, Uzbekistan, Tashkent City | ||
| 4Termez State University, Termez, Uzbekistan | ||
| 5Tashkent state University of Economics, Tashkent, Uzbekistan | ||
| 6Fergana State University,150100, Ferghana City, Uzbekistan | ||
| 7Bukhara State Pedagogical Institute, Bukhara, Uzbekistan | ||
| چکیده | ||
| Irrigated agriculture remains central to food security in Uzbekistan, but regional evidence on the productivity implications of water scarcity is often limited by public-data constraints. The analysis builds a reproducible open-data panel for thirteen agricultural regions of Uzbekistan over 2010-2024 and examines how wheat productivity relates to irrigation-resource pressure. Wheat yield is calculated from official SIAT statistics on wheat production and wheat sown area. Irrigation-resource pressure is represented by irrigated sown area and by the ratio of wheat area to total irrigated sown area. National irrigation-water withdrawal data provide the system-level context for 2013-2024. The empirical strategy uses two-way fixed-effects panel models with region and year effects; inference is checked with region-clustered, HC3 and panel-HAC standard errors. Irrigation withdrawals for agriculture declined from 48.9 km3 in 2013 to 39.9 km3 in 2024, while national wheat yield rose from 4.72 to 5.32 tons ha-1. Regional productivity differences remained wide: average wheat yield ranged from 2.65 t tons ha-1 in Karakalpakstan to 6.60 tons ha-1 in Andijan. The fixed-effects estimates do not provide stable evidence that broad irrigated-area indicators alone explain regional wheat yield after accounting for region-specific characteristics and national year shocks. The pressure proxy is negative, but inference is sensitive to the covariance estimator. The results do not diminish the importance of water scarcity; rather, they show that aggregate region-year open statistics cannot identify field-level irrigation adequacy, canal reliability, salinity exposure or farm-management responses. The article provides a transparent baseline and specifies the higher-resolution data needed for credible economic valuation of water scarcity. | ||
| کلیدواژه‌ها | ||
| Agricultural productivity؛ Irrigated area؛ Open data؛ Panel data؛ Water scarcity؛ Wheat yield | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 27 تعداد دریافت فایل اصل مقاله: 16 |
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