Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming, 650500, China.
Institute of International Rivers and Eco-Security, Yunnan University, Kunming, 650500, China.
Environ Sci Pollut Res Int. 2022 Mar;29(12):16817-16829. doi: 10.1007/s11356-022-18540-4. Epub 2022 Jan 8.
Dissolved organic matter (DOM) and microbes are key in the planetary carbon cycle, and research on them can lead to a better understanding of the global carbon cycle and an improved ability to cope with environmental challenges. Several papers have reviewed one or several aspects of the interaction of DOM and microbes, but no overall review has been performed. Here, we bibliometrically analyzed all publications from the Web of Science on DOM and microbes (1991-2020). The results showed that studies on DOM and microbes grew exponentially during this period; the USA contributed the most to the total publications, and China has had the fastest increasing rate since 2010. Moreover, we used the Latent Dirichlet Allocation model to identify topics and determine their (cold or hot) trends by analyzing the abstracts of 9851 publications related to DOM and microbes. A total of 96 topics were extracted, and these topics that are related to the source, composition, and removal path of DOM and the temporal-spatial patterns of DOM and microbes consistently rose from 1991 to 2020. Most studies have used accurate and rapid methods combined with microbiological genetic approaches to study the interaction of DOM and microbes in terrestrial and aquatic ecosystems. The results also showed that the impacts of climate change and land use on the interaction of DOM and microbes, and topics related to human health have received considerable attention. In the future, the interaction mechanism of DOM and microbes and its response to environmental change should be further elucidated.
溶解有机质（DOM）和微生物是行星碳循环的关键，对它们的研究可以促进我们更好地了解全球碳循环，并提高我们应对环境挑战的能力。已有几篇论文综述了 DOM 和微生物相互作用的一个或几个方面，但尚未进行全面综述。在这里，我们对 Web of Science 上 1991 年至 2020 年期间关于 DOM 和微生物的所有出版物进行了文献计量分析。结果表明，在此期间，关于 DOM 和微生物的研究呈指数增长；美国对总出版物的贡献最大，而自 2010 年以来，中国的增长率最快。此外，我们通过分析 9851 篇与 DOM 和微生物相关的文献的摘要，使用潜在狄利克雷分配模型来确定主题，并通过分析摘要来确定其（冷或热）趋势。共提取了 96 个主题，这些主题与 DOM 的来源、组成和去除途径以及 DOM 和微生物的时空模式有关，这些主题一直呈上升趋势，从 1991 年持续到 2020 年。大多数研究使用准确快速的方法，结合微生物遗传学方法，研究了陆地和水生生态系统中 DOM 和微生物的相互作用。结果还表明，气候变化和土地利用对 DOM 和微生物相互作用的影响，以及与人类健康相关的主题，已经受到了相当大的关注。未来，应进一步阐明 DOM 和微生物的相互作用机制及其对环境变化的响应。
