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巢湖流域土地利用碳排放时空变化及影响因素研究

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文章基于夜间灯光数据估测巢湖流域土地利用碳排放量,从县域尺度上分析土地利用碳排放时空分布特征及空间相关性,探究其影响因素作用机理.结果表明:2012-2018 年,巢湖流域土地利用特征较为显著,主要以耕地为主,建设用地和林地次之,水域、草地和未利用地较少;2012-2018 年,巢湖流域碳源主要集中于合肥市区、肥东县和肥西县,碳汇主要集中于舒城县、巢湖市和庐江县,土地利用净碳排放总体呈增长趋势,且存在着显著的空间正相关关系;区域投资、经济发展、人口规模和土地利用结构对巢湖流域土地利用碳排放都有较大影响,且双因子交互作用均超过单个指标影响.研究结果可为制定合理的区域碳排放优化方案提供参考.
Spatio-temporal changes and influencing factors of land use carbon emissions in Chaohu Lake Basin
This paper was based on nighttime light data to estimate carbon emissions from land use in the Chao-hu Lake Basin.It analyzed the spatio-temporal distribution characteristics and spatial correlations of land use carbon emissions at the county level,investigating the mechanisms of influencing factors.The results indica-ted that from 2012 to 2018,land use features in Chaohu Lake Basin were significant,primarily dominated by cultivated land,followed by construction land and forest land,with limited water bodies,grassland,and un-used land.During the same period,carbon sources in Chaohu Lake Basin were mainly concentrated in the ur-ban area of Hefei City,Feidong County,and Feixi County,while carbon sinks were mainly concentrated in Shucheng County,Chaohu City,and Lujiang County.Overall,net carbon emissions from land use showed an increasing trend,and there was a significant positive spatial correlation.Regional investments,economic de-velopment,population size,and land use structure had a substantial impact on land use carbon emissions in Chaohu Lake Basin,with the interactive effects of paired factors exceeding those of individual indicators.The research findings can provide references for formulating rational regional carbon emission optimization strate-gies.

land use carbon emissionsnighttime light remote sensingspatio-temporal changesinflu-encing factorsChaohu Lake Basin

赵萍、孙雨、赵思逸、阮旭东、常杰、周俊

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合肥工业大学 资源与环境工程学院,安徽 合肥 230009

土地利用碳排放 夜间灯光遥感 时空变化 影响因素 巢湖流域

国家自然科学基金资助项目

42271417

2024

合肥工业大学学报(自然科学版)
合肥工业大学

合肥工业大学学报(自然科学版)

CSTPCD北大核心
影响因子:0.608
ISSN:1003-5060
年,卷(期):2024.47(4)
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