Study on non-monetary accounting of regional spillover water ecosystem services

Xinyue Jiang, Yaobo Shi, Hanyu Shi
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Abstract

At present, the practice of water ecological compensation has been widely carried out in China, and the compensation standard is determined according to the protection cost, water quality standard and monetary value of water ecosystem. Few scholars measure the regional spillover value of water ecosystem services from the perspective of supply and consumption. Therefore, this paper estimates the regional spillover value of water ecosystem services in order to provide a new idea for setting compensation standards. Compared with monetary accounting, non-monetary accounting of regional spillover value of water ecosystem services avoids the adverse impact of market price distortion on the objectivity and robustness of accounting results.In this paper, emergy analysis method is used to calculate the non monetary value of regional spillover water ecosystem services. Firstly, the emergy analysis method is used to calculate the total energy value of water ecosystem services; Secondly, water footprint is used to characterize the self consumption of water ecosystem services; Thirdly, the regional spillover energy value is calculated by the difference between the total energy value of water ecosystem services and their own consumption, and the regional spillover value of water ecosystem services is obtained through the conversion of emergy currency ratio. Finally, taking the Loess Plateau Sichuan Yunnan ecological barrier area as an example, the total value of water ecosystem services, water footprint and spillover value of 37 national key ecological functional areas for soil and water conservation and 66 national key ecological functional areas for biodiversity maintenance are calculated. The results show that the ecological spillover value of 62 counties in the Loess Plateau Sichuan Yunnan ecological barrier area is greater than 0, which can be ecologically compensated, and the water ecological spillover value of 34 counties is less than 0, which can not be ecologically compensated.
区域溢出水生态系统服务的非货币核算研究
目前,中国已广泛开展水生态补偿的实践,并根据水生态系统的保护成本、水质标准和货币价值来确定补偿标准。很少有学者从供给和消费的角度来衡量水生态系统服务的区域溢出价值。因此,本文对水生态系统服务的区域溢出价值进行估算,以期为制定补偿标准提供新的思路。与货币性会计相比,水生态系统服务区域溢出价值的非货币性会计避免了市场价格扭曲对会计结果客观性和稳健性的不利影响。本文采用能值分析方法计算区域外溢水生态系统服务的非货币价值。首先,采用能值分析方法计算水生态系统服务总能值;其次,利用水足迹表征水生态系统服务的自我消耗;第三,通过水生态系统服务总能值与自身消耗的差值计算区域溢出能值,并通过能值货币比换算得到区域溢出能值。最后,以黄土高原川滇生态屏障区为例,计算了37个国家水土保持重点生态功能区和66个国家生物多样性保持重点生态功能区的水生态系统服务总量、水足迹和溢出价值。结果表明:黄土高原川滇生态屏障区内62个县的生态溢出值大于0,可以进行生态补偿;34个县的水生态溢出值小于0,不能进行生态补偿。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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