Review of the Urban Carbon Flux and Energy Balance Based on the Eddy Covariance Technique
Abstract In recent years, notable climate change has prompted more scholars to give more attention to urban climate development. Recognized as the most accurate flux measurement method, the eddy covariance (EC) technique is widely used in the direct observation of CO2 and energy fluxes. Therefore, t...
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| Format: | Article |
| Language: | English |
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Springer
2024-12-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.230245 |
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| author | Yuxuan Li Xinli Cai Mingjun Li Zhen Jiang Feifei Tang Shaojie Zhang Taotao Shui Shuguang Zhu |
| author_facet | Yuxuan Li Xinli Cai Mingjun Li Zhen Jiang Feifei Tang Shaojie Zhang Taotao Shui Shuguang Zhu |
| author_sort | Yuxuan Li |
| collection | DOAJ |
| description | Abstract In recent years, notable climate change has prompted more scholars to give more attention to urban climate development. Recognized as the most accurate flux measurement method, the eddy covariance (EC) technique is widely used in the direct observation of CO2 and energy fluxes. Therefore, to better summarize and describe relevant research, this paper was based on all 127 studies in the Web of Science (WOS) that employed the EC technique to observe urban CO2 and energy fluxes and related auxiliary research from 2009 to 2022, and we further selected other classic studies to provide theoretical support to analyze CO2 fluxes, radiation, sensible heat, latent heat, anthropogenic heat and storage heat, which from the two aspects of the CO2 fluxes and surface energy balance (SEB). The variation characteristics of CO2 and energy fluxes were obtained by comparing observation data from various regions at different time scales, and the mechanism of flux change was explained based on the main influencing factors, thereby providing a general summary of the impact of urban heterogeneity. The results show that carbon emissions in urban areas are highly cyclical and vary greatly at different times and seasons. Due to the many factors affecting urban carbon emissions, urban carbon reduction cannot be limited to vegetation research. In addition, the heterogeneity of the underlying surface in urban areas has a great influence on the energy flux parameters. Therefore, it is necessary to improve the energy calculation models to more accurately assess SEB in urban areas. And the long-term observations at different locations are needed. In addition, Python and other means were used to analyze the occurrence frequency of important research objects and methods in the literature, and the research hotspots and correlations between regions were visualized, which enables readers to better understand the field of urban climate. |
| format | Article |
| id | doaj-art-da2da85a6c944979836f120fd04c6068 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-da2da85a6c944979836f120fd04c60682025-02-09T12:23:50ZengSpringerAerosol and Air Quality Research1680-85842071-14092024-12-0124312410.4209/aaqr.230245Review of the Urban Carbon Flux and Energy Balance Based on the Eddy Covariance TechniqueYuxuan Li0Xinli Cai1Mingjun Li2Zhen Jiang3Feifei Tang4Shaojie Zhang5Taotao Shui6Shuguang Zhu7School of Environment and Energy Engineering, Anhui Jianzhu UniversityAnhui Institute of Urban-Rural Green development and Urban RenewalSchool of Environment and Energy Engineering, Anhui Jianzhu UniversityHuangshan Tourism Development Co., Ltd.Huangshan Tourism Development Co., Ltd.BIM Engineering Center of Anhui ProvinceSchool of Environment and Energy Engineering, Anhui Jianzhu UniversityEngineering Research Center of Building Energy Efficiency Control and Evaluation, Ministry of Education, Anhui Jianzhu UniversityAbstract In recent years, notable climate change has prompted more scholars to give more attention to urban climate development. Recognized as the most accurate flux measurement method, the eddy covariance (EC) technique is widely used in the direct observation of CO2 and energy fluxes. Therefore, to better summarize and describe relevant research, this paper was based on all 127 studies in the Web of Science (WOS) that employed the EC technique to observe urban CO2 and energy fluxes and related auxiliary research from 2009 to 2022, and we further selected other classic studies to provide theoretical support to analyze CO2 fluxes, radiation, sensible heat, latent heat, anthropogenic heat and storage heat, which from the two aspects of the CO2 fluxes and surface energy balance (SEB). The variation characteristics of CO2 and energy fluxes were obtained by comparing observation data from various regions at different time scales, and the mechanism of flux change was explained based on the main influencing factors, thereby providing a general summary of the impact of urban heterogeneity. The results show that carbon emissions in urban areas are highly cyclical and vary greatly at different times and seasons. Due to the many factors affecting urban carbon emissions, urban carbon reduction cannot be limited to vegetation research. In addition, the heterogeneity of the underlying surface in urban areas has a great influence on the energy flux parameters. Therefore, it is necessary to improve the energy calculation models to more accurately assess SEB in urban areas. And the long-term observations at different locations are needed. In addition, Python and other means were used to analyze the occurrence frequency of important research objects and methods in the literature, and the research hotspots and correlations between regions were visualized, which enables readers to better understand the field of urban climate.https://doi.org/10.4209/aaqr.230245Urban climateCO2 fluxesEnergy balanceEddy covariance |
| spellingShingle | Yuxuan Li Xinli Cai Mingjun Li Zhen Jiang Feifei Tang Shaojie Zhang Taotao Shui Shuguang Zhu Review of the Urban Carbon Flux and Energy Balance Based on the Eddy Covariance Technique Aerosol and Air Quality Research Urban climate CO2 fluxes Energy balance Eddy covariance |
| title | Review of the Urban Carbon Flux and Energy Balance Based on the Eddy Covariance Technique |
| title_full | Review of the Urban Carbon Flux and Energy Balance Based on the Eddy Covariance Technique |
| title_fullStr | Review of the Urban Carbon Flux and Energy Balance Based on the Eddy Covariance Technique |
| title_full_unstemmed | Review of the Urban Carbon Flux and Energy Balance Based on the Eddy Covariance Technique |
| title_short | Review of the Urban Carbon Flux and Energy Balance Based on the Eddy Covariance Technique |
| title_sort | review of the urban carbon flux and energy balance based on the eddy covariance technique |
| topic | Urban climate CO2 fluxes Energy balance Eddy covariance |
| url | https://doi.org/10.4209/aaqr.230245 |
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