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基于时间序列和空间统计方法,采用NPP/VIIRS(美国国家极轨业务环境卫星系统/可见光红外成像辐射仪)夜间灯光数据,对湖南省湘江流域8个城市2012—2022年能源消费碳排放的时空演变进行深入分析,揭示该区域能源消费碳排放的动态变化及其空间分布特征。研究结果表明:湘江流域的能源消费碳排放量整体上虽有波动,但呈缓慢上升趋势,其中湘江流域能源碳排放总量在2020年显著下降,但2022年迅速回升;湘江流域共有22个区县的SLOPE(CO2倾向值)计算值小于0,碳排放量随时间减少效应不显著,共38个区县属于较慢增长型,6个区县属于中速增长型,2个区县属于较快增长型,3个区县属于迅猛增长型,能源碳排放量在空间呈“核心-边缘”结构。研究结论可为湘江流域能源消费碳排放的时空演变提供科学依据,也可为制定针对性的减排政策提供参考。

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