NDLI: Optimal Allocation of Surface Water Resources at the Provincial Level in the Uzbekistan Region of the Amudarya River Basin

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Optimal Allocation of Surface Water Resources at the Provincial Level in the Uzbekistan Region of the Amudarya River Basin

Content Provider	MDPI
Author	Wang, Min Chen, Xi Sidike, Ayetiguli Cao, Liangzhong DeMaeyer, Philippe Kurban, Alishir
Copyright Year	2021
Description	Water users in the Amudarya River Basin in Uzbekistan are suffering severe water use competition and uneven water allocation, which seriously threatens ecosystems, as shown, for example, in the well-known Aral Sea catastrophe. This study explores the optimized water allocation schemes in the study area at the provincial level under different incoming flow levels, based on the current water distribution quotas among riparian nations, which are usually ignored in related research. The optimization model of the inexact two-stage stochastic programming method is used, which is characterized by probability distributions and interval values. Results show that (1) water allocation is redistributed among five different sectors. Livestock, industrial, and municipality have the highest water allocation priority, and water competition mainly exists in the other two sectors of irrigation and ecology; (2) water allocation is redistributed among six different provinces, and allocated water only in Bukhara and Khorezm can satisfy the upper bound of water demand; (3) the ecological sector can receive a guaranteed water allocation of 8.237–12.354 $km^{3}$; (4) under high incoming flow level, compared with the actual water distribution, the total allocated water of four sectors (except for ecology) is reduced by 3.706 $km^{3}$ and total economic benefits are increased by USD 3.885B.
Starting Page	1446
e-ISSN	20734441
DOI	10.3390/w13111446
Journal	Water
Issue Number	11
Volume Number	13
Language	English
Publisher	MDPI
Publisher Date	2021-05-21
Access Restriction	Open
Subject Keyword	Water Water Science and Technology Uzbekistan Amudarya River Water Allocation Optimization Itsp Method Aral Sea
Content Type	Text
Resource Type	Article

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