基于文献计量分析的土壤有机碳矿化研究进展与热点
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S153.6;G353.1

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国家自然科学基金项目(41877080)和国家重点研发计划项目(2018YFC0507001)资助


Research Hotspots and Progress of Soil Organic Carbon Mineralization Based on Bibliometrics Method
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The National Natural Science Foundation of China(41877080)

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    摘要:

    为了解土壤有机碳矿化的研究进展和未来发展趋势,以Web of Science核心合集数据库中1045篇土壤有机碳矿化的研究论文为数据源,通过CiteSpace、VOS viewer和GIS分别以发文数量、总/平均被引频次等为指标,对国家、机构、作者等进行了分类与可视化展示。结果表明:1982-2020年间,土壤有机碳矿化研究的发文数量不断增长,尤其是1993-2019年。美国总发文量第一且中介中心性较高,影响力较大;中国在2016年后年均发文数量第一但需加强科研创新性;目前形成了联系紧密的核心作者群,研究机构以中国科学院发文数量最多,但国家以德国和法国的国际影响力最大。土壤有机碳矿化的研究是基于多个学科、多个领域的知识相互融合而开展的,研究热点集中在土壤类型、环境因素和土地利用的变化对土壤有机碳的矿化量、周转情况及时空分布特征的影响上。未来应加强不同条件下土壤有机碳矿化的内在机制与模型研究,同时应更加注重对激发效应、土壤侵蚀以及外源碳氮添加等研究主题的关注度。

    Abstract:

    [Objective] Soil organic carbon mineralization is an important process of terrestrial carbon pool turnover, and its subtle changes will cause drastic fluctuations in the global carbon pool. This study aims to highlight the current status and development trend of international soil organic carbon mineralization research and to provide theoretical groundwork for the dynamic changes of global carbon pools.[Method] A total of 1 045 publications related to soil organic carbon mineralization; published from 1982 to 2020, were obtained from the Science Citation Index-Expanded database (SCIE). Then the Cite Space, VOS viewer, and GIS were used to sort out and visualize high-productive countries, research institutions, and researchers based on indicators such as the number of papers, total citation, average citation of articles, and total link strength.[Result] The number of papers related to soil organic carbon mineralization have been increasing since 1982; especially between 1993 to 2019, and there is potential for continuous growth. As evident, research on soil organic carbon mineralization was very popular in the US with the largest number of publications and very high Betweenness Centrality. The annual average publications on soil organic carbon mineralization in China were higher than those of the US after 2016. However, the average cited times were very low due to the lack of innovation. Therefore, there is a call to strengthen the innovation and international influence of scientific research in this field. The Chinese Academy of Sciences had the largest number of literatures for all research institutions. However, both France and Germany demonstrated the highest Betweenness Centrality, which means that they commanded the greatest influence in the world. The research on soil organic carbon mineralization was carried out based on the integration of knowledge between different disciplines and fields. It was observed that most of the existing studies focused on (i) the effect of soil types, environmental factors, and land use types on the amount and temporal and spatial distribution characteristics of soil organic carbon mineralization, and (ii) the global carbon mineralization and turnover.[Conclusion] Despite the growing trend in the literature, more studies that explore the internal mechanism and model of soil organic carbon mineralization under different environmental factors and land use conditions are needed. These studies should provide accurate parameters and ways for global carbon storage, turnover, and cycle models. Meanwhile, it is also necessary to initiate more studies related to priming effects, soil erosion, and exogenous carbon/nitrogen additions.

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史方颖,张风宝,杨明义.基于文献计量分析的土壤有机碳矿化研究进展与热点[J].土壤学报,2022,59(2):381-392. DOI:10.11766/trxb202010280600 SHI Fangying, ZHANG Fengbao, YANG Mingyi. Research Hotspots and Progress of Soil Organic Carbon Mineralization Based on Bibliometrics Method[J]. Acta Pedologica Sinica,2022,59(2):381-392.

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  • 收稿日期:2020-10-28
  • 最后修改日期:2021-01-18
  • 录用日期:2021-03-29
  • 在线发布日期: 2021-03-29
  • 出版日期: 2022-02-11