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Titolo:
A model for regional optimal allocation of irrigation water resources under deficit irrigation and its applications
Autore:
Shangguan, ZP; Shao, M; Horton, R; Lei, TW; Qin, L; Ma, JQ;
Indirizzi:
Chinese Acad Sci, Inst Soil & Water Conservat, Natl Lab Soil Eros & Dryland Agr Loess Plateau, Yangling 712100, Shannxi Prov, Peoples R China ChineseAcad Sci Yangling Shannxi Prov Peoples R China 712100 les R China Minist Water Resources, Yangling 712100, Shannxi Prov, Peoples R China Minist Water Resources Yangling Shannxi Prov Peoples R China 712100 China NW Sci Tech Univ Agr & Forestry, Yangling 712100, Shannxi Prov, Peoples R China NW Sci Tech Univ Agr & Forestry Yangling Shannxi Prov Peoples R China 712100 Iowa State Univ Sci & Technol, Ames, IA 50011 USA Iowa State Univ Sci & Technol Ames IA USA 50011 chnol, Ames, IA 50011 USA Huadong Univ Hydraul & Elect Engn, Zhongzhou 450045, Henan Province, Peoples R China Huadong Univ Hydraul & Elect Engn Zhongzhou Henan Province Peoples R China 450045
Titolo Testata:
AGRICULTURAL WATER MANAGEMENT
fascicolo: 2, volume: 52, anno: 2002,
pagine: 139 - 154
SICI:
0378-3774(20020103)52:2<139:AMFROA>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Keywords:
deficit irrigation; decomposition and harmonization; dynamic programming; allocation of water resources; irrigation scheduling;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Shangguan, ZP Chinese Acad Sci, Inst Soil & Water Conservat, Natl Lab SoilEros & Dryland Agr Loess Plateau, Yangling 712100, Shannxi Prov, Peoples RChina Chinese Acad Sci Yangling Shannxi Prov Peoples R China 712100
Citazione:
Z.P. Shangguan et al., "A model for regional optimal allocation of irrigation water resources under deficit irrigation and its applications", AGR WATER M, 52(2), 2002, pp. 139-154

Abstract

It is important to promote efficient use of water through better management of water resources, for social and economical sustainability in and and semi-arid areas, under the conditions of severe water shortage. Based on thedevelopments in deficit irrigation research, a recurrence control model for regional optimal allocation of irrigation water resources, aiming at overall maximum efficiency, is presented, with decomposition-harmonization principles of large systems. The model consists of three levels (layers). The first level involves dynamic programming (DP) for optimization of crop irrigation scheduling. The second level deals with optimal allocation of water resources among various crops. The last level concerns optimal allocation ofwater resources among different sub-regions. As a test, this model was applied to the combined optimal allocation of multiple water resources (surface, ground and in-take from the Weihe river) of Yangling, a semi-arid regionon the Loess Plateau, China. Exemplary computation showed that not only are the results rational, but the method can also effectively overcome possible "dimensional obstacles" in dynamic programming of multiple dimensions. Furthermore, each sub-model is relatively independent by using various optimization methods. The model represents a new approach for improving irrigation efficiency, implementing water-saving irrigation, and solving the problem of water shortage in the region studied. The model can be extended in andand semi-arid areas for better water management. (C) 2002 Elsevier ScienceB.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 10:19:34