| Summary: | 碩士 === 國立東華大學 === 自然資源管理研究所 === 84 === Abstract The main purpose of this resarch is to evaluate the
management practice effects on Ming-Hu and Ming-Tan reservoir
watersheds during the past 15 years. It is difficulty to
economically evaluate a watershed project consisting of a number
of multisectorand long-term management practices and
regulations. However, the reservoirs‘hydropower operation and
their associate bendfits and costs are highlightein this
research. The management practice value of NT$ 351 million
dollars (NPV)is estimated,which composes the B/C ratio of 1.189
in the Ming-Hu watershedon the one hand.Because the Ming-Tan
hydropower station began operation in the year 1992, the
regulating value of NT$-103 million dollars (NPV) and the B/C
ratio of 0.653 are estimated in the Ming-Tan watershed on the
other hand. If the analysis period is continued to the year
2010, the B/C ratio of Ming-Tanbecomes 1.103. Ming-Hu and Ming-
Tan watersheds together share the B/C ratio of 1.182 and the net
present value of NT$ 1,589 million dollars. The research
comments that the Taiwan Power Company, the watershed management
agent, has achievedeconomically efficient watershed practies and
regulations in Ming-Hu and Ming-Tan reservoir watersheds and the
watershed management practices are worth to sustain.
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