基于支付卡式问卷的长江水质恢复条件价值评估

利用支付卡式的条件价值评估(CVM)技术,通过发放调查问卷及访谈的形式,对公众改善长江水质的支付意愿进行了深入的研究。结果表明:(1)南京市居民对长江水质恢复的户均年支付意愿为100.66元,76.5%的受访者支付意愿大于0,8.4%的受访问者虽有支付意愿但限于低经济收入原因其支付意愿为0,15.1%的受访者拒绝支付;(2)影响居民支付意愿的主要因素包括家庭收入、环境意识及文化程度;(3)南京市居民偏爱的支付方式依次为捐款、交税、存取基金方式及提高水价。根据调查结果,增加收入、提高环境意识、引入“谁受益、谁支付”观点、提高政府资金管理与使用的合理性是提高居民支付意愿的有效途径。

Contingent Valuation of Yangtze River's Water Quality Improvement Structured by Payment Card Questionnaires

With the contingent valuation method which was structured by payment card,public's willingness to pay(WTP) for water quality improvement of Yangtze River were measured,The results show as follows:(1) The mean WTP is 100.66 Yuan per family per year.76.5 percent of respondents' WTP is over 0 Yuan,8.4 percent of respondents is willing to pay but their WTP equals 0 because of low family income,and 15.1 percent of respondents is unwilling to pay for water quality improvement.(2) The respondents' WTP is related to his family income,environmental ecological consciousness of water quality improvement and education degrees.(3) Donation,tax,fund and higher water price are the possible payment choices.So,income increasing,environmental ecological consciousness improvement,introduction of the idea 'whoever benefits,whoever pays' and the effectiveness improvement of fund management are efficient ways to increase publics' WTP for water quality improvement in Yangtze River area.