| Summary: | 碩士 === 國立成功大學 === 都市計劃學系 === 102 === Floods frequently occur in Taiwan and when there are climate change and land use changing which may cause bigger problems. Comprehensive water governance and management is a strategy which combines construction and non-construction methods and is intended to minimize harm to the environment and to maintain sustainable development of a river basin. The main purpose of this research is to minimize the harm to environment and use two main sectors which are location of water facility and capacity of water facility to simulate the assessment of flooding risk circumstances. Firstly, to gather hydrological data of Hou-jin basin and to use the physiographic inundation-drainage model for simulation of the phenomenon of inundation and drainage under different scenarios. Secondly, using physiographic inundation-drainage model to calculate the rates of water exchange in the basin and it revealed that the external water contributes mostly in Hou-jin basin. The model indicates that the simulated inundation range is within the investigated inundation range, which indicates that the model is able to simulate the inundation of the studied area reasonably well. It's important to deal with the interior water during flooding and to take care of flooding caused by external water. The implementation of comprehensive water governance and management is to select open spaces and to simulate the effect of dealing flooding when it's a single open spaces or multiple open spaces. And then the final results revealed that when there is only single open space with different depths, water capacity is not proportional to the depth of a water facility and when there are multiple open spaces, water capacity is not proportional to the number of water facilities. In the past, because of the complexity of hydrological function and theory, the techniques are still used by professional hydrologists. The purpose of this research is to be pioneering research and it combines urban planning and hydrological engineering.
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