Analysis of research progress in carbon neutrality based on bibliometrics
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摘要:
碳中和是应对全球气候变化的重要举措,对于全球气候治理与人类命运共同体建设具有极其重要的理论与实践意义,国内外学者对碳中和的研究也在持续进行。基于Web of Science核心合集中的SCI-E与SSCI网络数据库进行检索,利用文献计量的方法,对1991—2021年碳中和研究相关论文进行数据分析与挖掘。结果表明:1991—2021年碳中和研究领域的发文量呈现显著上升趋势,研究主要集中在自然科学领域,发文量排名前3的期刊分别是Sustainability、Journal of Cleaner Production和Applied Energy;中国国家自然科学基金委员会共资助该领域459篇研究论文,远高于其他国家的相关机构;研究的中坚力量集中在美国和英国,其论文篇均被引频次分别为51.24、43.21次,远高于中国(16.91次);目前碳中和的相关研究可以概括为碳中和技术与碳中和政策两大方面,而生物质、氢能源、碳捕集和封存等将会成为未来实现碳中和的关键性技术和主要研究方向。
Abstract:Carbon neutrality is an important initiative to address global climate change, and it has extremely important theoretical and practical significance for global climate governance and the building of a community of human destiny. The research on carbon neutrality has been continuously conducted by scholars internationally. Based on the search of SCI-E and SSCI databases in the Web of Science core collection, the carbon neutral literature from 1991 to 2021 was analyzed and mined by using bibliometric methods. The study showed that the number of carbon neutral publications was on the rise, and the research areas were mainly concentrated in the natural sciences, with the top 3 journals in terms of the number of publications being Sustainability, Journal of Cleaner Production and Applied Energy. National Natural Science Foundation of China funded 459 studies in this field, much higher than the relevant institutions in other countries; the backbone of the research was concentrated in the United States and the United Kingdom, whose average citations per article were 51.24 and 43.21, respectively, much higher than those of China (16.91). The current carbon neutral research could be summarized in two major aspects, namely carbon neutral technology and carbon neutral policy, while biomass, hydrogen energy, carbon capture and storage, etc. were the key technologies and research directions for achieving carbon neutrality in the future.
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Key words:
- carbon neutrality /
- visual analysis /
- bibliometrics /
- research direction
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图 4 碳中和相关研究重要机构之间的合作关系
Tokyo Inst Technol—东京理科大学;Hong Kong Univ Sci & Te—香港理工大学;Ucl—伦敦大学;Aalto Univ—阿尔托大学;Potsdam Inst Climate Im—波茨坦气候影响研究所;Eth—苏黎世联邦理工学院;Univ Oxford—哈佛大学;Duke Univ—杜克大学;Oregon State Univ—俄勒冈州立大学;Natl Nuiv Singapore—新加坡国立大学;Tongji Univ—同济大学;Mit—麻省理工学院;Lund Univ—隆德大学;Caltech—加州理工学院;Univ Toronto—多伦多大学;Beijing Inst Technol—北京理工大学。
Figure 4. Collaboration between important institutions for carbon neutral and related research
表 1 碳中和研究领域不同学科类别发文量及占比
Table 1. Number and proportion of papers published by different subject categories in the field of carbon neutrality research
排名 WoS学科类别 发文量/篇 占比/% 1 energy fuels 963 26.95 2 environmental sciences 938 26.25 3 green sustainable science technology 503 14.08 4 environmental studies 491 13.74 5 engineering chemical 432 12.09 6 engineering environmental 292 8.17 7 chemistry multidisciplinary 289 8.09 8 chemistry physical 283 7.92 9 materials science multidisciplinary 223 6.24 10 economics 221 6.19 表 2 碳中和研究领域主要发文期刊
Table 2. Leading journals published in the field of carbon neutrality research
期刊 发文量/篇 2021年影响因子 JCR
分区所属国家 Sustainability 116 3.251 Q2 瑞士 Journal of Cleaner Production 109 9.297 Q1 美国 Applied Energy 96 9.746 Q1 英国 Energies 84 3.004 Q3 瑞士 Renewable & Sustainable Energy Reviews 77 14.982 Q1 美国 Journal of Environmental Management 73 6.789 Q1 英国 Energy Policy 64 6.142 Q1 英国 Energy 59 7.147 Q1 英国 Environmental Science And Pollution Research 38 4.223 Q2 德国 Fuel 37 6.609 Q1 英国 注:JCR为Journal Citation Reports。 表 3 1991—2021年碳中和研究领域主要发文国家发文量及论文被引情况
Table 3. Number of publications and citations of papers from major countries in the field of carbon neutrality research in 1991-2021
排序 国家 发文量/篇 发文量占比/% 总被引频次 篇均被引频次 1 美国 905 25.33 46 37 51.24 2 中国 862 24.13 14 58 16.91 3 英国 427 11.95 18 45 43.21 4 澳大利亚 255 7.14 9 78 38.33 5 德国 243 6.80 9 17 37.73 6 加拿大 217 6.07 6 36 29.29 7 日本 188 5.26 4 47 23.77 8 印度 153 4.28 4 19 27.40 9 韩国 145 4.06 2 76 19.02 10 意大利 122 3.41 2 77 22.59 表 4 1991—2021 年碳中和研究领域主要发文机构论文被引情况
Table 4. Citations of papers from major institutions in the field of carbon neutrality in 1991-2021
序号 研究机构 所属国家 篇均被引频次 1 中国科学院(Chinese Acad Sci) 中国 30.43 2 美国能源部(DEO) 美国 98.07 3 加利福尼亚大学(Univ California) 美国 63.45 4 清华大学(Tsinghua Univ) 中国 16.56 5 法国国家科学研究中心(CNRS) 法国 38.86 6 美国农业部(USDA) 美国 34.94 7 中国科学院大学
(Univ Chinese Acad Sci)中国 14.48 8 加州大学伯克利分校
(Univ California, Berkeley)美国 82.58 9 伦敦帝国理工学院
(Imperial College London)英国 152.00 10 昆士兰大学(Univ Queensland) 澳大利亚 59.51 表 5 1991—2021年突现关键词图谱
Table 5. Emergent keywords mapping in 1991-2021
关键词 节点出
现年份突现
强度突现开
始年份突现结
束年份突现图谱
(1991—2021年)carbon storage
(碳储存)1991 6.43 1994 2014 carbon sequestration
(碳封存)1991 26.07 1995 2016 forest (森林) 1991 11.13 1995 2015 soil (土壤) 1991 5.84 1995 2013 foresty (森林) 1991 5.11 1996 2016 carbon offset
(碳补偿)1991 24.31 1996 2016 climate (气候) 1991 5.36 1996 2011 plantation (种植) 1991 3.56 1997 2015 carbon (碳) 1991 4.78 1999 2015 biome
(生物群落区)1991 13.60 1995 2014 注:表中仅展示了突现时间前10名突现关键词图谱。 表 6 2017—2021年关键词突现整合
Table 6. Consolidated table of emergent keywords in 2017-2021
关键词 突现开始
年份突现结束
年份强度 electroreduction(电还原) 2018 2021 11.81 catalyst(催化剂) 2018 2021 8.00 conversion(转换) 2019 2021 5.19 bio oil(生物油) 2018 2021 5.16 formic acid(甲酸) 2017 2021 4.65 hydrogen evolution(氢气进化) 2019 2021 4.49 methanol(甲醇) 2019 2021 4.45 green(绿色环保) 2019 2021 4.42 electrochemical reduction(电化学还原) 2019 2021 4.37 carbon footprint(碳足迹) 2019 2021 4.26 nitrogen(氮气) 2017 2021 4.22 transition(转型) 2018 2021 4.12 politics(政治) 2019 2021 4.01 electrode(电极) 2019 2021 3.75 ammonia(氨气) 2018 2021 3.74 cellulose(纤维素) 2019 2021 3.67 attitude(态度) 2019 2021 3.60 hydrocarbon(碳氢化合物) 2016 2019 5.59 CO2 capture(二氧化碳捕获) 2018 2019 4.72 aviation(航空) 2017 2019 4.71 electrocatalytic reduction(电催化还原) 2018 2019 4.67 EU ETS(欧盟排放交易计划) 2017 2019 4.38 注:表中仅展示了强度大于4的突现关键词。 -
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