Bibliometric and visual analysis of phosphorus-transforming microorganisms based on CiteSpace

Abstract:

[Background] Phosphorus-transforming microorganisms play an important role in the phosphorus cycle in the natural environment. These microorganisms promote the efficient resource utilization, reduce environmental pollution, and have positive impacts on food security and ecosystem stability by dissolving, mineralizing, absorbing, and transporting phosphorus in the environment. [Objective] To explore the research hotspots and trends of phosphorus- transforming microorganisms both domestically and internationally in recent years, visualize the knowledge structure and evolution process in this field, and provide feasible references and insights for subsequent research. [Methods] We retrieved the articles in this field published by China National Knowledge Infrastructure (CNKI) and Web of Science core collection (WOS) from 2002 to 2022. CiteSpace was employed to analyze the keyword co-occurrence, keyword clustering, bursts, number of publications, country distribution, author cooperation, and institution collaboration. [Results] A total of 887 valid articles were ultimately screened out. The research on phosphorus-transforming microorganisms began to flourish after 2016 and experienced accelerated growth in recent years. China and the United States were leaders in this field. China was the country with the largest number of publications, and the Chinese Academy of Sciences was the institution with the largest number of publications. The research hotspots included the classification and screening of strains, metabolic pathways, nutrient cycling, environmental pollution, and ecological protection. [Conclusion] Phosphorus-transforming microorganisms have broad development prospects. The mechanism of phosphorus- transforming microorganisms in response to biochar is becoming a new research hotspot. The wide application of such technologies in the future is an inevitable development trend. This article provides a visual explanation of the research and development trend of phosphorus-transforming microorganisms, proposes future key research directions, and provides a theoretical basis for agricultural production and sustainable development.

Key words:phosphorus-transforming microorganisms;phosphorus cycling;CiteSpace;visual analysis;research hotspots