The objective of this paper is to present a review of current research on the valuation of ecosystem services, using emergy evaluation methodology (EME). A bibliometric analysis and a systematic review were carried out between 2000 and 2020, using all of Web of Science database subfields that collected 187 papers, selected through the keywords “emergy” and “ecosystem services”. In the second part of the research, we carried out a new search on Web of Science of the 187 initial articles produced, with the words “valuation” and “economic”, in order to analyze those directly related to the evaluation of ecosystem services. The results showed that the EME method is an effective tool to evaluate ecosystem services, since it relates economic and ecological aspects in the evaluations. The research also indicated that the use of isolated methods does not appear to be the most appropriate solution, and that emergy used in combination with other methodologies can be used to obtain more accurate and comprehensive results to evaluate natural resources.

中文翻译：

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能值作为评估生态系统服务的工具：文献系统回顾

本文的目的是利用能值评估方法 (EME) 对当前关于生态系统服务估值的研究进行回顾。2000 年至 2020 年期间，使用 Web of Science 数据库的所有子领域进行了文献计量分析和系统评价，这些子领域收集了 187 篇论文，这些论文通过关键词“能值”和“生态系统服务”进行选择。在研究的第二部分，我们在 Web of Science 上对最初产生的 187 篇文章进行了新的搜索，其中包含“评估”和“经济”两个词，以分析与生态系统服务评估直接相关的内容。结果表明，EME 方法是评估生态系统服务的有效工具，因为它在评估中涉及经济和生态方面。