The spatial distribution and change trend of greenhouse gases at different scales are the basis for studying climate change and for evaluating the effectiveness of relevant emission reduction policies.The current carbon emission accounting is mainly based on emission inventory,with high uncertainties.Carbon emission accounting based on monitoring data can effectively evaluate and correct the accounting results based on emission inventory,which is an effective complement to current methods.However,most of the relevant studies in China focus on the measurement of greenhouse gas concentration in different environment or around emission sources.The researches on the monitoring of anthropogenic greenhouse gas emissions flux are barely reported.This paper analyses the research on anthropogenic greenhouse gas emissions flux based on ground-based monitoring during recent years.The main research methods can be divided into two categories:Inverting emission flux through column concentration spatial distribution combined with three-dimensional wind measurement.By combining the measured greenhouse gas volume fraction,atmospheric diffusion model and statistical optimization model,the prior emission flux results are corrected to obtain a more accurate posterior emission flux.By analyses and comparing the advantages and limitations of the two methods,the application scenarios of different anthropogenic greenhouse gas emissions flux inversion methods are discussed.It is suggested that China should establish a greenhouse gas flux monitoring system suitable for different spatial scales,comprehensively utilize various monitoring methods to verify emission inventories,and provide technical support for formulating greenhouse gas emission reduction strategies and evaluating the effectiveness of addressing climate change.
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