Abstract:In order to investigate environmental valuation in aging dam decision making, a double-bounded dichotomous choice contingent valuation method was used to estimate recreational value of the Heiwa Dam. Using different Logit models taking account of income restriction on willingness-to-pay (WTP), sensitivity of WTP estimates to the right tail of its distribution was examined. The WTP distribution in this study did not have an unrealistically fat right tail. The simple method which truncates WTP distribution at the highest bid was most statistically efficient. Results indicated that households would pay an average of 305 Yuan with 95% confidence interval from 265 to 351 Yuan to improve the recreational function of the Heiwa Dam, and the estimated total recreational value was 3782×104 Yuan (95% confidence interval: 3296×104 to 4355×104 Yuan). The case study showed that even small aging dam has high environmental value, and environmental valuation is critical in aging dam decision making.
杨孟, 钱新. 病险水库管理决策中的环境价值评估
——以水库的游憩价值为例
[J]. 中国环境科学, 2011, 31(9): 1563-1570.
YANG Meng, QIAN Xin. Environmental valuation in aging dam decision making: a case study of reservoir recreation. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(9): 1563-1570.