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标题：Partitioning of net CO 2 exchanges at the city-atmosphere interface into biotic and abiotic components
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作者：Keunmin Lee ; Je-Woo Hong ; Jeongwon Kim 等
期刊名称：MethodsX
印刷版ISSN：2215-0161
电子版ISSN：2215-0161
出版年度：2021
卷号：8
页码：1-10
DOI：10.1016/j.mex.2021.101231
语种：English
出版社：Elsevier
摘要：AbstractEddy covariance (EC) method has been used to measure CO2fluxes over various ecosystems. Recently, the EC method has been also deployed in urban areas to measure CO2fluxes. Urban carbon cycle is complex because of the additional anthropogenic processes unlike natural ecosystems but the EC method only measures the net sum of all CO2sources and sink. This limitation of the EC method hinders us from the underlying processes of the carbon cycle, and it is necessary to partition the net CO2fluxes into individual contributions for a better understanding of the urban carbon cycle. Here we propose a statistical method to partition CO2fluxes into individual components by extending the method of Menzer and McFadden (2017).•Statistical method is proposed to partition CO2fluxes into gross primary production, ecosystem respiration, anthropogenic emissions from a vehicle and building.•This method uses eddy fluxes and footprint-weighted high-resolution land cover data with temporal subsets that a few components can be negligible.•New partitioning method produces reliable individual components of the urban carbon cycle when compared to inventory data and typical biotic responses to environmental conditions.Graphical abstractDisplay Omitted
关键词：Building emission;Carbon cycle;CO2 flux;Ecosystem respiration;Eddy covariance;Partitioning;Photosynthesis;Urban forest;Vehicle emission