中文摘要：

本文运用意愿调查价值评估法中支付卡式和二分式两种问卷格式,对北京市居民保护濒危野生动物的支付意愿进行研究.支付卡式问卷和双边界二分式的有效问卷分别为350份和250份.支付卡式问卷调查分析得到平均支付意愿为13.90元/户·月,二分式问卷的调查结果为18.99元/户·月。由支付卡问卷结果得到北京市居民20年总支付意愿为41.63×10^8元；二分式问卷则为184.7×10^8元，后者是前者的4.57倍.支付卡式问卷结果的主要影响因素是户均月收入和文化程度；二分式问卷结果的主导因子是户均月收入。考虑到二分式问卷比支付卡式问卷更能够逼近样本的真实意愿,认为将二分式问卷的研究结果作为北京居民对我国野生动物的总经济价值的评估更为适合。

英文摘要：

Species extinctions coupled with large-scale deterioration of wildlife habitat are becoming more and serious worldwide and there is no exception in China. The contingent valuation method （CVM） is a wildly applied monetary evaluation method for valuing environmental and natural resource-related goods, such as the conversation of wildlife species. We estimated the willingness of Beijing＇ s residents to pay （WTP） for the conservation of endangered wildlife and economics species. The payment card and dichotomous choice question formats were used, which were more popular than others of the contingent valuation method. Our research focused on calculating the total economic valuation of wildlife conservation and making a comparison of the distinction among different question formats of CVM. In eight typical residential areas of Beijing city, we carried out 600 face-to-face interviews for payment card and double-bounded dichotomous choice format. Statistical analysis indicated that the results of two question formats could be comparable. 81.3 % and 77.9 % respondents have positive willing to pay for the wildlife conversation in payment card and double-bounded dichotomous choice format respectively. Different estimates were got from the different questionnaires. Non-parameter analysis of the payment card data showed that the mean amount of willing to pay （WTP） was 13.90 Yuan RMB per household per month. For the double-bounded dichotomous choice format, a probit regression model was used to analyze the respondents＇ responses, and the estimate of 18.99 Yuan RMB per household per month was the final result. By the dichotomous choice format, the aggregate amount of willing to pay for Beijing＇ s residents was 18.47 billion Yuan RMB for 20 years, which was 4.57 times of the result by payment card question format. Since it can fully stimulate the market activities by bargaining, it was found that double-bounded format was statistically more efficient than payment card format and more closely approximate to t