水土保持研究2025，Vol.32Issue(3)：321-331,342,12.DOI:10.13869/j.cnki.rswc.2025.03.023
基于土地利用的鄱阳湖流域碳排放与生态系统服务价值时空耦合关系分析
Analysis of spatiotemporal coupling relationship between carbon emission and ecosystem service value in Poyang Lake Basin based on land use
摘要
Abstract
[Objective]This study aims to quantify and analyze the spatiotemporal evolution characteristics of carbon emissions and ecosystem service value(ESV)in the Poyang Lake Basin,and explore the spatiotemporal coupling relationship between the two,providing a reference for promoting the achievement of regional carbon neutrality goals and steady development of the ecological economy.[Methods]Based on land use data from five sets of remote sensing images(2000-2020)in the Poyang Lake Basin,this study integrated the IPCC carbon emission coefficient method,ESV equivalent factor method,Pearson correlation coefficient,and spatial autocorrelation methods to explore the spatiotemporal coupling relationship between ESV and carbon emissions under land use changes.[Results](1)Between 2000 and 2020,significant land use changes occurred in the Poyang Lake Basin,with the largest changes occurring in the conversion of the cultivated land,although the total amount remained relatively stable.Forest land decreased significantly,while built-up land increased substantially,with areas of 1 282.29 km2 and 1 697.04 km2,respectively.(2)The basin was a carbon source,with the net carbon emissions increasing significantly at an average annual growth rate of 17.70%,primarily driven by built-up land.Low carbon emission intensity areas were widespread and dominant,while high carbon emission intensity areas were mainly concentrated in the southwest,corresponding to urban distribution.(3)Total ESV slowly decreased from 1 800.41 billion yuan to 1 705.73 billion yuan.ESV intensity showed a distribution characteristic with higher values in the lake area and lower values in the surrounding areas.(4)Carbon emission intensity was negatively correlated with the ESV intensity,with significant local clustering and an increasing number of high and low clustering areas.[Conclusion]Focusing on the restoration and protection of forests,grasslands,and water bodies,as well as strictly controlling the rapid expansion of urban areas,can effectively promote the realization of green,low-carbon development and ecological security in the Poyang Lake Basin.关键词
土地利用碳排放/生态系统服务价值/时空演变/空间自相关/鄱阳湖流域Key words
land use,carbon emissions/ecosystem service value/spatiotemporal evolution/spatial autocorrelation/Poyang Lake Basin分类
资源环境引用本文复制引用
付帅,徐炳先,彭雨欣,汪鸿波,李秀香..基于土地利用的鄱阳湖流域碳排放与生态系统服务价值时空耦合关系分析[J].水土保持研究,2025,32(3):321-331,342,12.基金项目
国家自然科学基金项目(42361003,42261045) （42361003,42261045）
新疆干旱区水循环与水利用实验室开放课题(XJYS0907-2023-22) （XJYS0907-2023-22）
江西省教育厅科技项目(GJJ190269) （GJJ190269）
2022年纯净资溪碳中和实践创新中心项目(2022JDA07). （2022JDA07）
