Your search found 5 records
1 Wang, J.; Ma, Y.. 1997. Remote sensing estimates of crop water consumption in oasis-desert systems of China. ITIS (Information Techniques for Irrigation Systems), 4(1):6-7.
Remote sensing ; River basin development ; Evapotranspiration ; Runoff ; Crop production ; Water stress ; Irrigation water / China / Gansu Province / Hexi Corridor / Heihe River / Gobi Desert
(Location: IWMI-HQ Call no: PER Record No: H021962)
2 Wang, J.; Bastiaanssen, W. G. M.; Ma, Y.; Pelgrum, H. 1998. Aggregation of land surface parameters in the oasis-desert systems of north-west China. Hydrological Processes, 12:2133-2147.
(Location: IWMI-HQ Call no: P 5054 Record No: H023868)
(1.11 MB)
3 Bastiaanssen, W. G. M.; Pelgrum, H.; Wang, J.; Ma, Y.; Moreno, J. F.; Roerink, G. J.; van der Wal, T. 1998. A remote sensing surface energy balance algorithm for land (SEBAL): 2. Validation. Journal of Hydrology, 212/213:213-229.
Remote sensing ; Soil moisture ; Evaporation ; Water balance / Spain / Niger / China / Egypt / Sahel / Nile Delta
(Location: IWMI-HQ Call no: e-copy only Record No: H024216)
(1.98 MB)
4 Wang, T.; Zhang, J.; You, L.; Zeng, X.; Ma, Y.; Li, Y.; Huang, G. 2023. Optimal design of two-dimensional water trading considering hybrid “three waters”-government participation for an agricultural watershed. Agricultural Water Management, 288:108457. (Online first) [doi: https://doi.org/10.1016/j.agwat.2023.108457]
Water markets ; Government ; Participation ; Water conservation ; Uncertainty ; Analysis ; Watersheds ; Models ; Water resources ; Water quality ; Ecology ; Water rights ; Water use ; Decision making ; Stream flow ; Sewage ; Surface water ; Water balance / China / Dagu River Basin / Qingdao / Shandong
(Location: IWMI HQ Call no: e-copy only Record No: H052121)
https://www.sciencedirect.com/science/article/pii/S0378377423003220/pdfft?md5=d9572c1601607111fa59e3dd324559bc&pid=1-s2.0-S0378377423003220-main.pdf
https://vlibrary.iwmi.org/pdf/H052121.pdf
https://vlibrary.iwmi.org/pdf/H052121.pdf
(4.97 MB) (4.97 MB)
Sharp increase in water consumption and pollutant emissions makes shortage of clean water the main problem hindering regional agricultural development. Two-dimensional water trading (2DWT) can unify the quantity and quality of water to relieve the water crisis in agricultural watersheds. This study developed a hybrid “three waters”-government participation based two-dimensional water trading model group (TWG-2DWTMs) to support 2DWT planning under various complexities. The linkage among water resources, water quality and ecology (i.e., “three waters”) as well as government participation are considered. The TWG-2DWTMs has been applied in Dagu River basin in Qingdao city, an agricultural watershed, and solved under multiple trading rules and water-saving scenarios. The results indicate that trading rule for government participation with ecological runoff guarantee of river regions and concentration control of monitoring sections (CERG) is the optimal trading rule and should be recommended. CERG can realize the transformation from water rights to discharge permits, and promote economic development while ensuring water ecology and water environment. Furthermore, under CERG, water-saving percentage of 50% is the optimal water-saving scenario; water saving can bring about surplus water rights that can be directly traded or transformed into discharge permits, promoting local sustainable development.
5 Zhang, Y. F.; Li, Y. P.; Huang, G. H.; Zhai, X. B.; Ma, Y.. 2024. Improving efficiency and sustainability of water-agriculture-energy nexus in a transboundary river basin under climate change: a double-sided stochastic factional optimization method. Agricultural Water Management, 292:108648. (Online first) [doi: https://doi.org/10.1016/j.agwat.2023.108648]
Climate change ; River basins ; Transboundary waters ; Sustainability ; Stochastic models ; Water allocation ; Water availability ; Nexus approaches ; Water resources ; Energy ; Cash crops ; Water supply ; Water shortages ; Water-use efficiency ; Water scarcity ; Crop production ; Uncertainty ; Sustainability ; Water power / Central Asia / Kyrgyzstan / Uzbekistan / Tajikistan / Kazakhstan / Syr Darya River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H052522)
https://www.sciencedirect.com/science/article/pii/S0378377423005139/pdfft?md5=a006a182c567d2086c0b000cce94ab28&pid=1-s2.0-S0378377423005139-main.pdf
https://vlibrary.iwmi.org/pdf/H052522.pdf
https://vlibrary.iwmi.org/pdf/H052522.pdf
(8.64 MB) (8.64 MB)
In this study, a double-sided stochastic fractional programming (DSFP) method is developed for identifying optimal water-allocation schemes of water-agriculture-energy nexus (WAEN) system under considering climate change impact. The advantages of DSFP are (i) handling complex uncertainty of double-sided randomness, (ii) addressing conflicting objectives with optimal system efficiency, and (iii) achieving trade-off between marginal benefit and system risk. Then, a DSFP-based water-agriculture-energy nexus (DSFP-WAEN) model is formulated for water resources allocation in a transboundary river basin of Central Asia, where 48 scenarios are designed to examine the impacts of climate change, irrigation efficiency, and system risk over a long-term planning horizon (2026–2050). Results reveal that: (i) among all agricultural activities, cash crop cultivation shows the greatest change in adaption to climate change, with the share of cash crop cultivation increasing to 70.7% by 2050 under RCP4.5; (ii) Kazakhstan, which has the largest irrigation needs and is the county most sensitive to water supply risk, should be the first to be constrained in the case of severe water shortages and poor delivery levels; (iii) the improvement of irrigation efficiency can increase the inflow to the Aral Sea by 2.7%, and reduce water loss of infield irrigation by 11.3% even under severe water shortage (i.e. p = 0.01). Compared with the models based on the traditional stochastic programming and single-objective methods, DSFP-WAEN has advantages in optimizing water-use efficiency and reflecting system complexity with flexible solutions. To coordinate transboundary water conflicts, strategies from both demand and supply sides related to quota management and water-saving techniques are suggested for the Syr Darya River basin, such as clean energy transition, drip irrigation promotion and canal system improvement. From a long-term planning perspective, WAEN schemes should be adapted to risk attitude and climate change, which can help address water scarcity and achieve future sustainability.
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