Abstract
To obtain an overall understanding of soil physics research in Japan, we conducted a bibliometric analysis of “Journal of the Japanese Society of Soil Physics” and “Proceedings of the Annual Meeting, Japanese Society of Soil Physics” (hereafter re-ferred to as “Proceedings”). Using VOSviewer, we analyzed titles, abstracts, authors, and affiliated institutions. The results indicated that proceedings provided better insights due to the larger number of terms included, the reflection of the latest research topics, and the clear depiction of pure collaborative relationships. Soil physics research in Japan initially focused on understanding the physical properties of paddy soils and developing measurement techniques. From 1989 to 2018, re-search actively adapted to changing societal demands and background conditions. In recent years, since 2019, interest in previously studied topics, such as paddy soil properties and measurement techniques, has resurged, leading to deeper exploration of these research themes. This study provided a comprehensive overview of the trends in soil physics research in Japan.
https://ror.org/057zh3y96 
