摘要
基于江西省11个地级市2015~2019年数据,利用空间自相关法分析城市化和大气颗粒物时空分布特征,构造耦合协调度模型探究二者动态关系。结果表明:(1)2015~2019年全省城市化综合水平稳步上升,PM_(2.5)和PM_(10)浓度先升高后降低。(2)城市化综合水平空间离散特征显著,PM_(2.5)和PM_(10)自2016年起具有空间集聚特征,城市化综合水平、PM_(2.5)和PM_(10)的局部自相关特征高度一致,呈“西北高,东南低”格局。(3)2015~2019年城市化与大气环境的耦合协调度整体提高,城市化往大气环境友好型发展,11个地级市耦合协调度提升差异显著,部分地市仍有较大提升空间;耦合协调度具有空间离散特征,以南昌为中心呈“中间高,四周低”分布格局。江西省会城市南昌实现了城市化与大气环境的良好协调发展,除南昌以外多数地级市的发展仍以牺牲生态环境为代价,建议各地级市因地制宜地探索具有区域特色的新型城镇化道路。
The study chose Jiangxi Province as the study area,to explore the spatio-temporal characteristics of urbanization development and atmospheric particulate matter pollution and their coupling coordination relationship.It is expected to provide effective reference on coordination between urbanization and the atmospheric environment for Jiangxi Province and other less developed areas.Spatial autocorrelation method was used to analyze the spatio-temporal distribution characteristics of urbanization level and atmospheric particulate matter,and coupling coordination degree model was constructed to analyze spatio-temporal variation of relationship between urbanization level and atmospheric particulate matter.The results show that:(1) From 2015 to 2019,the comprehensive urbanization level increased steadily,and concentrations of PM_(2.5) and PM_(10) increased first and then decreased.(2) The comprehensive urbanization level present spatial discrete characteristic,PM_(2.5) and PM_(10 )concentrations present obvious spatial agglomeration characteristic since 2016.The local autocorrelation characteristics of comprehensive urbanization level,PM_(2.5) and PM_(10) are highly consistent,showing spatial overall distribution characteristic of "high in the northwest and low in the southeast".(3) From 2015 to 2019,the coupling coordination degree between comprehensive urbanization level and atmospheric environment increased,showing the urbanization development is atmosphere-friendly.Increase of coupling coordination degree between 11 cities are significantly different,and there is still large improvement for some cities.The coupling coordination degree is spatially discrete,with a distribution pattern of "high in the middle and low around".Nanchang,the capital of Jiangxi,has already achieved a good coordination between urbanization and atmospheric environment.However,most of the other cities are still developing at the cost of decreasing ecological environment.It is suggested to explore new urbanization paths for different cities ac
作者
阳海鸥
廖玲莉
冷清明
YANG Hai-ou;LIAO Ling-li;LENG Qing-ming(College of Tourism and Geography,Jiujiang University,Jiujiang 332005,China;College of Computer and Big Data Science,Jiujiang University,Jiujiang 332005,China)
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2022年第4期890-902,共13页
Resources and Environment in the Yangtze Basin
基金
江西省社会科学基金(20GL42)
江西省教育厅科技项目(GJJ190919)
国家自然科学基金地区项目(62066021)。
关键词
城市化
大气颗粒物
空间自相关
耦合协调度
urbanization
atmospheric particulate matter
spatial autocorrelation
coupling coordination
