| Summary: | 碩士 === 國立臺灣大學 === 森林環境暨資源學研究所 === 104 === In Taiwan, due to the Climate change, flood and drought, which brought more damage than usual, happen frequently in the recent years. Huge part of water supply comes from the river, which supplies by the rainfall but cannot be conserved well. Therefore, building a sustainable water resource system has been marked as a major issue on the list.
“The Recession-curve Replacement Method”, which was published by Rorabaugh in 1964, has been used in researching the relation between the river flow and the groundwater-recharge in recent years. The study will use it as main tool to get the amount of water conservation in watershed no.3 in Lian-Hua-Chih Research Center, and analyze the relation between the rainfall and the amount of water conservation, trying to discuss the possibility of building an estimating model on water conservation. Further, the study will use this analyzing process to build the estimating models on the each watersheds in Taiwan.
Through Regression analyze, the study has built the estimating models on each of the eight chosen watersheds. The R squares of the models were located between 0.1758 and 0.7321, and the equation which have the power less than 1 all belong to the watersheds that locates at the South of Hsinchu, and others which have the power more than 1 belong to the watersheds that locates at the North of Hsinchu. So we can figure out that climate conditions in different area of Taiwan have tremendous effect on the regression model. But the yearly rainfall is obviously not the only parameter when the relations between the model and the reality still remain low. There are still some key elements, which can make the model more available, remain undiscovered.
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