| Summary: | 碩士 === 國立成功大學 === 水利及海洋工程學系碩博士班 === 98 === This thesis studies Tseng-Wen Reservoir Transbasin Diversion by considering impacts on both water usage and environmental integrity simultaneously. The Tseng-Wen Reservoir Transbasin Diversion Plan proposes to divert water from the Launong River into Tseng Wen Reservoir. This study attempts to provide management strategies on water diverting rate and 10 days reservoir operation for an optimal solution of both water usage of southern Taiwan and environmental integrity of these two river basins by using genetic algorithm (GA). I developed water diverting rates at three flow conditions inspired from Dujiangyan, and 36 storage levels for reservoir to evaluate the optimal solution from GA simulations that minimizes water deficiency and maximizes environmental integrity. Historical flow data of Launong River and Tseng Wen Reservoir from 1975 to 1998 were compiled into six indices for the GA simulations with their associated weights. The GA simulation results show that the optimal water diversion is 0.05 of the low flow (flow less than 20 million cubic meter/10 days), adding 0.39 of the median flow (flow between 20 million and 100 million cubic meter/10 days), and adding 0.37 of the high flow (flow between 100 million and 200 million cubic meter/10 days). The water diversion is 0 because of the turbidity while the flow over 200 million cubic meter/10 days. Under this optimal operation, the results of the water deficiency at Launong River, and the environmental integrity at Launong River and Tseng-Wen Reservoir are better than the original plan.
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