Bibliometric Analysis of the Development of Research on the Effects of Litter Decomposition on Soil Carbon
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摘要: 凋落物是植物同化碳的重要产物，是土壤有机碳库的主要来源。为系统了解凋落物分解对土壤碳库影响的研究进展，基于中国知网数据库（CNKI）和Web of Science（WOS）核心合集数据源，利用CiteSpace和VOSviewer文献可视化分析工具，从发文趋势、合作关系（团队、机构、国家）和期刊影响力等方面，对1989-2022年的相关文章进行计量分析。结果表明：国内和国际发文量总体呈增长态势。我国在该领域研究中发文量仅次于美国，占全球发文量的27.8％，表明我国研究者对该领域的研究有重要贡献，但整体影响力低于欧美发达国家（地区），美国和法国综合影响力最高，英国和瑞士论文篇均被引较高。凋落物分解、有机质、气候变化、碳循环和碳储量等关键词是该领域近年来的热点研究主题。未来我国应继续加强国际间合作研究，侧重凋落物分解相关特性对气候变化的响应和对环境污染的研究，提高我国在该领域的研究水平，将研究成果及时转化到碳减排增汇的研究中。Abstract: As the main product of plant carbon assimilation, litter is an important source of soil organic carbon pool. Based on the data of CNKI and WOS from 1989 to 2022, the author used CiteSpace and VOSviewer to visualize the literature about publication trends, partnerships between teams, institutions and countries, and journal influence for a systematically understanding of the effects of litter decomposition on soil carbon pools. This paper concludes that domestic and international articles published in this field have a rising tendency, this paper concludes that domestic and international articles published in this field have a rising tendency. China ranks the second only to the USA, accounting for 27.8% of global publications, indicating that Chinese researchers have made important contributions to research in this field, but the overall impact is lower than that of developed countries of Europe and the United States. America and France have the highest integrated influence and Britain and Switzerland have higher citations. The keywords, such as litter decomposition, organic matter, climate change, carbon cycle, and carbon storage, are the hotspot research themes in this field in recent years. International cooperation should be strengthened in the future, and China should focus on the response of litter decomposition characteristics to climate change and environmental pollution, improve the research level, and timely transform the research results into the study of carbon emission reduction and carbon sinks enhancement.
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Key words:
- Litter decomposition /
- Bibliometric analysis /
- Soil carbon pool /
- VOSviewer /
- CiteSpace
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图 1 国内有关“凋落物分解对土壤碳库影响”的发文量
Figure 1. Annual publications of domestic literature on “effect of litter decomposition on soil carbon pool”
图 2 国际有关“凋落物分解对土壤碳库影响”的发文量
Figure 2. Annual publications of global literature on “effect of litter decomposition on soil carbon pool”
图 3 CNKI文献涉及的研究团队及合作关系
Figure 3. The research teams and their cooperative relationships of the publications in the CNKI
图 4 WOS文献涉及的研究团队及合作关系
Figure 4. The teams and their cooperative relationships of publication in WOS
图 5 WOS文献来源国家及合作关系
Figure 5. The countries and cooperative relationships of publications in the WOS
表 1 “凋落物分解对土壤碳库影响”研究排名前5的高被引文献
Table 1. Top 5 of references with high citation for “effect of litter decomposition on soil carbon pool”
数据库
Database排名
Ranking文献名
Title第一作者
First author第一作者单位
First organization次数
FrequencyWOS I Persistence of soil organic matter as an ecosystem property Schmidt,MWI University of Zurich 2957 II The unseen majority: soil microbes as drivers of plant diversity and productivity in terrestrial ecosystems Van Der Heijden, MGA. Vrije Univ Amsterdam 2407 III The contentious nature of soil organic matter Lehmann, J Cornell Univ, 1343 IV Plant species traits are the predominant control on litter decomposition rates within biomes worldwide Cornwell, WK Vrije Univ Amsterdam 1299 V The Microbial Efficiency-Matrix Stabilization （MEMS） framework integrates plant litter decomposition with soil organic matter stabilization: do labile plant inputs form stable soil organic matter? Cotrufo, MF Colorado State Univ 1161 CNKI I 凋落物化学组成对土壤微生物学性状及土壤酶活性的影响 胡亚林 福建农林大学 293 II 内蒙古锡林河流域大针茅草原土壤呼吸和凋落物分解的CO2排放速率研究 陈四清 中国科学院
植物研究所282 III 东北地区陆地碳循环平衡模拟分析 王绍强 中国地质大学
（武汉）195 IV 长白山次生针阔混交林叶凋落物中有机物分解与碳、氮和磷释放的关系 李雪峰 北卡罗莱纳州立大学 140 V 暖温带落叶阔叶林碳循环的初步估算 桑卫国 中央民族大学 128 
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表 2 WOS发文量前10位的研究机构
Table 2. The top 10 institutions related to publications in the WOS
机构
Institution国家
Country发文量
Publication总被引次数
Total citation平均被引次数
Average citationChinese Academy of Sciences 中国 673 12548 20.3 University Of Chinese Academy Of Sciences Cas 中国 295 5106 18.26 Centre National De La Recherche Scientifique Cnrs 法国 236 12691 55.41 University Of California 美国 209 17192 83.82 Inrae 法国 205 7645 38.61 United States Department Of Agriculture Usda 美国 191 6258 33.27 United States Department Of Energy Doe 美国 176 11554 66.95 University Of Göttingen 英国 166 4676 29.18 Swedish University of Agricultural Sciences 瑞典 162 9010 57.4 Institut de recherche pour le développement 法国 157 8321 54.54
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表 3 CNKI发文量前10位的研究机构
Table 3. The top 10 institutions related to publications in the CNKI
机构
Institution发文量
Publication总被引次数
Total
citation平均被引次数
Average
citation四川农业大学 26 261 10 中国科学院大学 19 437 23 东北林业大学 15 144 10 西北农林科技大学 14 71 5 中国林业科学院 14 179 13 福建师范大学 14 109 8 北京林业大学 13 184 14 中国科学院研究生院 13 474 36 福建农林大学 13 232 18 中国科学院沈阳应用生态研究所 12 878 73
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