Numerical Simulation of the Influence of Land use on Urban Flooding

• Main Authors: Tsung-Shien Li, 李宗賢
• Other Authors: Chih-Ming Tseng
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/82124312680988183286

碩士 === 長榮大學 === 土地管理與開發學系碩士班 === 99 === In recent years, global environmental increased change continuously, thus, the disaster and the flood disaster are getting worse. It is also the most troubled to face flood which is derived from typhoons and torrential rain in Taiwan, for example, Toraji (2001/1/8), Nari (2001/9/16) and Mindulle (2004/4/7) of typhoons caused the flood of different degree everywhere in Taiwan, particularly, Morak of typhoon caused flood seriously and shocked the World in 2009. After typhoons and torrential rain, some areas were often still flooded, but there are survive in the extreme rainfall in many areas. For decades, Taiwan’s urbanization and industrial activities are rise and develop, and lands of using patterns significantly change under the urban intensification, thus, it caused that flooding problems emerge. in this study, we focus on lands using and change and the impact of flooding degree under the urban intensification for decades. In this study, We used San Yeh Kung River watershed as research range, because there is several urban planning areas and the other reason is that the terrain of San Yeh Kung River watershed is gentle, but the drainage outlet is difficult within range of 71% watershed, however, these questions cause fold disaster in long-term in this area. San Yeh Kung River watershed examine the flood’s effect of land using is helpful, so we examined the degree of flooding and range for land using after San Yeh Kung River watershed changing several times. We examined the degree of flood under land using and changing through SOBEK flooded model from 1995 to 2006 in San Yeh Kung River watershed, and the result shows that land using significantly affect degree and range of flood.