Ecosystem services (ES) are growing fields of research. It helps to provide an inherent way to understand the synergy and trade-offs between human beings and their natural environment. Regulatory ecosystem services (RES) are significantly important to maintaining the world in which people can live, and control the negative effects of flood, disasters, and diseases. It can also provide regulatory services like ecosystem protection, human safety, and the provision of other ES. However, emerging ES decision-making agendas focus on ES that is tangible and has a direct link with human well-being. Thus, the attention given to RES is low due to its less tangible benefits and complexity to measure the benefits. Disregarding and lack of attention from policymakers and scientific community may lead to unintended risks to human well-being and significant influences on the provision of other ES. This study describes the research trends on RES, knowledge generated, and the major limitation. We concluded that though there is an exponential growth of scientific publications on ES, no adequate studies were found on RES. Also, the existed studies varied in their size and types of RES indicators covered, habitats/ecosystems, and geographic extent addressed. There was also a lack of connecting knowledge generated on the benefits of RES with the national policy of natural resource management, inconsistency of ES classification, and methodological diversity. Therefore, scientific communities are promoted to link RES studies with human health. Besides, the researcher should give priority for the least studied ecosystems and its services, developing robust methodology, and proposing management options to enhance the regulatory services of ecosystems.

中文翻译：

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监管生态系统服务的全球视角：现有知识，趋势和研究差距

生态系统服务（ES）是不断发展的研究领域。它有助于提供一种固有的方式来理解人类与其自然环境之间的协同作用和取舍。监管生态系统服务（RES）对于维持人类赖以生存的世界以及控制洪水，灾难和疾病的负面影响至关重要。它还可以提供监管服务，例如生态系统保护，人类安全以及提供其他ES。但是，新兴的ES决策议程将重点放在切实可行的ES上，并与人类福祉有直接联系。因此，由于RES的实际收益较少，而且对收益的计量复杂性，对RES的关注度较低。忽视政策制定者和科学界的注意力以及缺乏关注可能会导致对人类福祉的意想不到的风险以及对提供其他环境服务的重大影响。这项研究描述了关于RES，知识产生和主要限制的研究趋势。我们得出的结论是，尽管关于ES的科学出版物呈指数级增长，但尚未对RES进行足够的研究。而且，现有研究的规模，所覆盖的RES指标的类型和类型，栖息地/生态系统以及所涉及的地理范围各不相同。此外，还缺乏将可再生能源的好处与国家自然资源管理政策，环境服务分类的不一致以及方法学多样性相结合的知识。因此，促进了科学界将可再生能源研究与人类健康联系起来。除了，