none

• Main Authors: Ming-jaw Lin, 林銘照
• Other Authors: Eorng-Chien Lii
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/76922646745206368068

碩士 === 國立臺南大學 === 自然科學教育學系碩士班 === 92 === Based on the concepts of sediment transport within a given basin, The volume of the Da-An River, which is located at the muddle part of Taiwan, is studied by using the data of real-field sediment transport records from Hydrological Year Book of Taiwan of Water Resources Bureau Ministry of Economic Affairs to establish the relationship between sediment content then the annual sediment transport weight is estimated by the daily mean discharge. By comparing the theoretical sediment transport with the ones which are got from the hydrological records before and after Chi-chi 921 great earthquake, the mechanism and factors of earthquake on the effects of river sediment transport are discussed, meanwhile the magnitude of increment about sediment product on Da-An River is insignificant. Substituting annual mean discharge after Chi-chi 921 great earthquake, the scale of the increment on the sediment product within the Da-An River basin is only about 10﹪. The ratio of sub-basin area with power index in 2/3 is used to find the relative discharge In order to obtain the virtual sediment transport for whole river catchment.