Faculty of Civil Engineering, K.N.Toosi University of Technology, No. 1346, Vali Asr.Street, Mirdamad Intersection, Tehran, Iran.
Faculty of Civil Engineering, Queen's University, 99 University Ave, Kingston, ON, K7L 3N6, Canada.
Environ Sci Pollut Res Int. 2021 Jan;28(1):94-102. doi: 10.1007/s11356-020-11119-x. Epub 2020 Oct 13.
This study aims to investigate a practical bibliometric analysis and discuss its trends to evaluate the global scientific production of vermicompost research from 1993 to 2017 and explain its several advantages to our environment and waste management. The data were from the database of the Science Citation Index (SCI) published by the ISI Web of Science and illustrated by Excel and VOS viewer. According to the 2174 publications, this article was conducted based on four significant aspects, including publications growth trends, countries/territories, categories and journals, and keywords co-occurrence network analysis. This study revealed remarkable positive growth trends of the research and the number of articles related to vermicompost over the last 24 years with more countries participating in this field. Although the USA has the most collaboration with other countries, developing countries such as India, which was the most productive one, made significant progress in sharing articles within the study period. Based on analyses of dominant categories, the most common subject category was Environmental Science, and the most productive journal was Bioresource Technology. Finally, we analyzed author keywords to the extracted research article emphasis. The results showed that mainstream research claim vermicomposting with the help of Eisenia fetida earthworms which converts several wastes such as sewage sludge to a soil improvement fertilizer. It is an essential approach to eliminate heavy metals from the wastes and provide essential nutrients to improve the growth and yield of plants.
本研究旨在通过文献计量分析探讨其趋势，以评估 1993 年至 2017 年间全球蚯蚓堆肥研究的科学产出，并解释其对环境和废物管理的若干优势。数据来自 ISI Web of Science 出版的科学引文索引（SCI）数据库，并使用 Excel 和 VOS viewer 进行说明。根据 2174 篇出版物，本文基于出版物增长趋势、国家/地区、类别和期刊以及关键词共现网络分析这四个重要方面进行了研究。本研究揭示了该研究领域的显著积极增长趋势，过去 24 年来与蚯蚓堆肥相关的文章数量不断增加，更多的国家参与其中。尽管美国与其他国家的合作最多，但印度等发展中国家在研究期间在分享文章方面取得了重大进展，印度是最具生产力的国家。基于对主要类别的分析，最常见的主题类别是环境科学，最具生产力的期刊是《生物资源技术》。最后，我们对提取的研究文章重点进行了作者关键词分析。结果表明，主流研究主张利用赤子爱胜蚓（Eisenia fetida）进行蚯蚓堆肥，将污水污泥等多种废物转化为土壤改良肥料。这是从废物中去除重金属并提供必需养分以提高植物生长和产量的重要方法。
