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An optimal water allocation for an irrigation district in Pingtung County, Taiwan
Author(s) -
Cheng Yun,
Lee ChengHaw,
Tan YihChi,
Yeh HsinFu
Publication year - 2009
Publication title -
irrigation and drainage
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 38
eISSN - 1531-0361
pISSN - 1531-0353
DOI - 10.1002/ird.411
Subject(s) - groundwater , irrigation , irrigation district , conjunctive use , water resource management , environmental science , hydrogeology , environmental engineering , agriculture , optimal allocation , hydrology (agriculture) , aquifer , geography , geology , mathematics , mathematical optimization , agronomy , geotechnical engineering , archaeology , biology
This paper presents a linear programming model to study the conjunctive use of surface water and groundwater for optimal water allocation in Taiwan. Increasing demand for water emphasizes the proper need for effective planning and development of irrigated resources. A groundwater simulation model was performed to construct the hydrogeological structure of the regional Pingtung Plain in the southwest part of Taiwan and the optimal withdrawal of three irrigation areas in Pingtung Plain was analysed. The optimal ratios for allocating water of three canals are analysed in this research. The optimal distribution rate of each canal depends on the season, irrigation methods and crops, which are two paddy rice and one upland crop. After simulation of various scenarios, optimal simulation results show that the minimal amount of required groundwater and the maximum amount of excess water amounts in the area can be satisfied by current agricultural practices. Copyright © 2008 John Wiley & Sons, Ltd.