Mapping the Landscape of Soil Organic Carbon Research in China from 1995 to 2024: A Computational Analysis Using CiteSpace and CNKI Database

Jiashuo Xu, Zhouli Liu (), Xin Wang, Shuyan Zhang and Mingran Xin
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Jiashuo Xu: Shenyang University, College of Life Science and Engineering
Zhouli Liu: Shenyang University, College of Life Science and Engineering
Xin Wang: Shenyang University, College of Life Science and Engineering
Shuyan Zhang: Shenyang University, College of Life Science and Engineering
Mingran Xin: Shenyang University, College of Life Science and Engineering

A chapter in Proceedings of the 2026 5th International Conference on Big Data Economy and Digital Management (BDEDM 2026), 2026, pp 79-90 from Springer

Abstract: Abstract Soil organic carbon (SOC) is critical for soil structure improvement, climate change mitigation, and ecological balance maintenance. This study leverages advanced computational tools to map the landscape of SOC research in China over the past three decades (1995–2024). Utilizing CiteSpace 6.3.R1 software, we conducted a comprehensive visual analysis of 17,020 relevant papers sourced from the China National Knowledge Infrastructure (CNKI) database. Our computational approach involved data mining, keyword extraction, and network visualization to uncover trends and hotspots in the field. The results indicate: (1) A significant increase in the number of publications, with average annual publications reaching 9, 762, 1,654, and 2,038 in four distinct developmental periods, reflecting a growing research emphasis in China; (2) The University of Chinese Academy of Sciences emerged as the leading institution with 691 publications, though interdisciplinary collaboration remains limited; (3) Keyword frequency analysis identified biochar, microorganisms, community structure, and organic carbon components as current research hotspots. This study demonstrates the power of computational methods in analyzing large-scale scientific literature and provides valuable insights for future research directions in SOC.

Keywords: soil organic carbon; Citespace analysis; CNKI database; research landscape (search for similar items in EconPapers)
Date: 2026
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DOI: 10.2991/978-94-6239-640-1_8

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