摘要
运用条件价值评估法,基于三峡工程对珍稀濒危生物影响的现状和采取的保护措施,设计了支付卡式调查问卷。通过调查我国31个省(自治区、直辖市)以国有单位为主的职工的支付意愿,评估了保护三峡工程影响的珍稀濒危生物白鳍豚(Lipotes vexillifer)、白鲟(Psephurus gladius)、达氏鲟(Acipenser dabryanus)、胭脂鱼(Myxocyprinus asiaticus)、中华鲟(Acipenser sinensis)和荷叶铁线蕨(Adiantum reniforme var.sinense)、疏花水柏枝(Myricaria laxiflora)、川明参(Chuanminshen violaceum)的经济价值。回收有效问卷1,036份,有70.08%的有效问卷反馈者愿意为保护三峡工程影响的这些珍稀濒危生物而支付费用,平均支付意愿值为127.82元/年。同时采用列联表及卡方独立性检验方法重点分析了总样本各因素对支付意愿值的影响,结果显示年龄、文化程度、从事职业、个人收入、对三峡工程的了解、对三峡工程的关注、对三峡工程对生物影响的了解等因素与支付意愿值显著相关。最后计算得出保护三峡工程影响的这些珍稀濒危生物的经济价值为82.19×108元/年。以上结果为进一步制定相关保护政策提供了依据。
We designed the payment card questionnaires to survey the willingness to pay (WTP) of people using the contingent valuation method (CVM), in an attempt to evaluate the economic values of conserving the rare and endangered species influenced by the Three Gorges Project (TGP), including Lipotes vexillifer, Psephurus gladius, Acipenser dabryanus, Myxocyprinus asiaticus, Acipenser sinensis, Adiantum reniforme var. sinense, Myricaria laxiflora and Chuanminshen violaceum. The employees in the state-owned units and other companies from 31 provinces/autonomous regions were surveyed. A total of 1,036 valid surveys were collected in June 2008. The result indicated that 70.08% of the respondents were willing to pay for the conservation of the rare and endangered species. The average WTP bids of all the respondents were 127.82 RMB yuan per year. We also analyzed the correlation between the respondents' characteristics and their WTP bids using the contingency table and the Chi-square test for independence. The results indicated that WTP bids were mainly affected by age, education level, profession, personal income, the awareness of TGP, the attention paid to TGP, and the knowledge of the influence of TGP on the rare and endangered species. In conclu- sion, the economic values of conserving the rare and endangered species affected by TGP is 82.19 ×10^8 RMB yuan per year. This study may provide basic information for the further policy-making of the conservation of the species in the Three Gorges area.
出处
《生物多样性》
CAS
CSCD
北大核心
2009年第3期257-265,共9页
Biodiversity Science
基金
国家自然科学基金(30400275)
关键词
三峡工程
条件价值评估法
珍稀濒危生物
支付意愿
支付意愿值
经济价值评估
the Three Gorges Project (TGP), contingent valuation method (CVM), rare and endangered species, willingness to pay (WTP), WTP bids, economic value evaluation