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首页> 外文期刊>International Journal of Innovative Research in Science, Engineering and Technology >Applying Contingent Valuation Survey to Assess the Economic Value of Restoring Ecosystem Services of Impaired Rivers: A Case Study in Transboundary Buna River Region, Albania
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Applying Contingent Valuation Survey to Assess the Economic Value of Restoring Ecosystem Services of Impaired Rivers: A Case Study in Transboundary Buna River Region, Albania

机译：应用权变评估调查评估受损河流的生态系统服务的经济价值：以阿尔巴尼亚跨境布纳河地区为例

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Rivers can provide many services to humans, including water supply for municipal, industrial and agricultural users, fish habitat and recreation. Restoration of impaired waters is gaining increasing attention. Improving the quality of impaired waters will yield environmental benefits that will also translate into economic and social benefits. The estimation of the economic value of these environmental benefits by assessing the total willingness-topay (WTP) of households for restoring water quality in impaired transboundary Buna River basin, Albania (AL-Buna) is the primary objective of this study. A stated-preference estimation technique known as the contingent valuation method (CVM) was utilized in this study. In our survey was used a well-designed questionnaire depicting the reason why the ecosystem of Buna river basin has been deteriorating, the measures by which ecosystem services could be restoring from their current level, and the benefits the households in the area could get from restoring ecosystem services. These ecosystem services were dilution of wastewater, natural purification of water, erosion control, habitat for fish and wildlife, and recreation. Surveys containing a dichotomous choice WTP questions and multiple choice questions were sent to a randomly selected sample of 268 households to determine both the WTP of residents and factors that affect WTP. Results from survey indicate that households would pay an average of $2.1 per month or €25.2 annually for the additional ecosystem services. Generalizing this to the households living along the river yields a value of €140,000 to €500,000 depending on whether non-responding households make any contribution or not. These estimates are more than the estimated costs of restoring the five ecosystem services. The approach described in this study may be applied to larger ecosystems with a broader range of the ecosystem services to be valued.
机译：河流可以为人类提供许多服务，包括为市政，工业和农业用户供水，鱼类栖息地和娱乐活动。恢复受损水域越来越受到关注。改善受损水质将产生环境效益，这也将转化为经济和社会效益。这项研究的主要目的是通过评估阿尔巴尼亚布纳河流域受损越境家庭恢复水质的家庭的总支付意愿（WTP）来估算这些环境效益的经济价值。在这项研究中，采用了陈述优先估计技术，称为或有估值法（CVM）。在我们的调查中，使用了精心设计的问卷，该问卷描述了布纳河流域生态系统恶化的原因，可以从目前水平恢复生态系统服务的措施以及该地区家庭可以从中获得的收益生态系统服务。这些生态系统服务包括废水稀释，水的自然净化，侵蚀控制，鱼类和野生动植物的栖息地以及娱乐。将包含二选题WTP问题和多项选择题的调查发送给随机选择的268个家庭样本，以确定居民的WTP和影响WTP的因素。调查结果表明，家庭将平均每月为额外的生态系统服务支付2.1美元或每年25.2欧元。将其推广到沿河居住的家庭，将产生140,000欧元至500,000欧元的价值，具体取决于无响应的家庭是否做出任何贡献。这些估计数比恢复五种生态系统服务的估计成本还要多。本研究中描述的方法可能适用于更大的生态系统，需要评估的生态系统服务范围更广。

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