文献类型：期刊文献

英文题名：Trends in Research on Soil Organic Nitrogen over the Past 20 Years

作者：Chen, Shiyou[1] Jiang, Chunqian[1] Wang, Hui[1] Bai, Yanfeng[1] Jiang, Chunwu[2]

第一作者：Chen, Shiyou

通信作者：Wang, H[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Anhui Acad Forestry, Hefei 230031, Peoples R China

年份：2023

卷号：14

期号：9

外文期刊名：FORESTS

收录：;EI(收录号：20234014822675);Scopus(收录号：2-s2.0-85172725044);WOS:【SCI-EXPANDED(收录号:WOS:001071808500001)】；

基金：We are grateful to Suping Zeng, Lina Guo, and Ke Huang for their assistance with the work. We thank the facilities made available by the Huitong National Research Station of Forest Ecosystem.

语种：英文

外文关键词：soil organic nitrogen; bibliometric analysis; organic nitrogen stability; nitrogen cycling; nitrogen pool management index

摘要：Nitrogen (N), an indispensable mineral nutrient element for plant growth and development, is a major limiting source of productivity in many terrestrial ecosystems. Soil organic nitrogen (SON) is a crucial form of nitrogen (N) in the N cycle within terrestrial ecosystems, acting as either a "source" or a "sink" for environmental N release. In order to illustrate the research trends, evolution process and hotspots of SON, a bibliometric analysis was used to analyze 906 documents based on the ISI (Institute of Scientific Information) Web of Science (WoS) database. The results indicated that (1) the number of published papers on SON research showed a wavy growth from 2000 to 2022 and the research has entered a mature development period; China has been increasing its number of publications and has long been in the lead; (2) the most productive institutions and authors in this subject area are in the USA and China, with the Chinese Academy of Sciences being the key institution performing such research; (3) in the sample, Soil Biology and Biochemistry, Science of the Total Environment, and Biogeochemistry are the leading international journals that have played a key role in the evolution of the field and have laid a solid foundation for future research; (4) the characteristics and maintenance of SON in farmland and SON migration in small watersheds under forest conversion have become research hotspots. Through the in-depth analysis of SON research, this paper provides a better understanding of the development trends of SON over the past 20 years, which can also provide reference for future research.