Development of a regional carbon assimilation system and its application for estimating fossil fuel carbon emissions in the Yangtze River Delta, China - Zhengqi Zhang; Shuzhuang Feng; Yan Chen; Qiang Liu; Weimin Ju; Wei Xiao; Cheng Huang; Yanyu Wang; Hengmao Wang; Mengwei Jia; Xingyu Wang; Fei Jiang (Science of The Total Environment, 2024)