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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40330
標題: | 台灣疏伐木生產酒精和電力之成本效益分析 A Cost-Benefit Analysis on Production of Ethanol and Electricity from Forest Thinning Wood in Taiwan |
作者: | Han-Jing Lyu 呂涵靜 |
指導教授: | 鄭欽龍 |
關鍵字: | 生物能源,森林疏伐,疏伐木,電力,酒精,成本效益分析,補貼, bioenergy,forest thinning,forest thinning wood,electricity,ethanol,cost-benefit analysis,subsidy, |
出版年 : | 2008 |
學位: | 碩士 |
摘要: | 大氣中二氧化碳的濃度快速增加,使全球暖化問題越趨嚴重。此外,隨著石油價格不斷上漲,生物能源成為取代石油的再生能源之一種方法。從文獻得知,森林疏伐不僅有助林地的碳吸存量,亦可供給疏伐木供生產生物能源之用。本研究分別提出利用疏伐木生產酒精和電力兩種方案,並應用成本效益分析以評估此二方案。
本研究發現,疏伐木生產酒精方案較生產電力方案為佳,前者在要求報酬率16%時為淨現值5,575萬元,後者為767萬元。此外,前者之內部報酬率為18.4%,後者為19%。由此可見,疏伐木生產酒精方案經濟上較可行。 另外,本研究以成本效益分析探討政府採用不同補貼措施獎勵以疏伐木生產酒精,其中以低利貸款增加的內部報酬率最高,其為四個補貼方式中為最具效率之措施。 The carbon dioxide in atmosphere had increased rapidly in recent decades, it caused serious global warning problems. Furthermore, current oil price is soaring sharply, and bioenergy becomes one of the alternatives to fossil fuel. According to literature reviews, forest thinning not only can increase carbon sequestration of forestland but also provide wood for producing bioenergy. The study proposed two projects to utilize forest thinning wood to produce ethanol and electricity respectively, then applied cost-benefit analysis to evaluate the two projects. The study found that the ethanol project of forest thinning wood had higher return than the electricity project. At 16% required rate of return, the ethanol project had net present value of 55.75 million NT dollars, the electricity project had 7.7 million NT dollars. Furthermore, the ethanol project had 18.4% internal rate of return, the electricity project 19%. The comparison indicated the ethanol project is more feasible economically. Besides, this study used cost-benefit analysis to evaluate different subsidy measures for promotion of using forest thinning wood to produce ethanol. It found the form of grants is the most effective measure in terms of the maximum the internal rate of return of the four subsidy regime. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40330 |
全文授權: | 有償授權 |
顯示於系所單位: | 森林環境暨資源學系 |
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