中国城市绿地的区域差异及其对PM_2.5的消减作用

编号 lyqk010031

中文标题 中国城市绿地的区域差异及其对PM_2.5的消减作用

作者 王泽发  陈静  刘庭风 

作者单位 1. 天津大学建筑学院 天津 30007;
2. 泉州师范学院资源与环境科学学院 福建泉州 362000;
3. 福建师范大学地理科学学院 福州 350007

期刊名称 中国城市林业 

年份 2022 

卷号 20

期号 6

栏目名称 研究论文 

中文摘要 空气污染是实现健康中国战略的挑战之一，以细颗粒物（PM_2.5）为主的城市空气污染尤为突出。本文利用遥感数据获得2005—2015年PM_2.5浓度数据，采用变异系数和标准差分析中国276个地级及以上城市PM_2.5浓度和城市绿地指标的时空特征，并借助面板数据模型解析不同经济区城市绿地指标对PM_2.5浓度的影响。结果表明：1）2005—2015年中国PM_2.5浓度整体呈波动上升趋势，但区域差异显著，东部经济区高于其他经济区；2）表征城市绿地的5个指标存在明显的时空差异；3）城市绿地指标中人均绿地面积对不同经济区PM_2.5浓度影响差异明显，建成区绿地覆盖面积和建成区绿地覆盖率对各经济区的PM_2.5浓度均有较强的消减作用。因此，城市绿地对PM_2.5浓度的消减作用存在一定的区域差异。

关键词 绿地  细颗粒物  区域差异  消减  中国 

基金项目 2020年度教育部人文社会科学研究青年基金项目（20YJCZH009）；2018年天津市艺术科学规划项目（C18011）；2021年福建省中青年教师教育科研项目（JAT210303）

英文标题 Regional Difference in Urban Green Spaces in China and Its PM_2.5 Reduction Effect

作者英文名 Wang Zefa, Chen Jing, Liu Tingfeng

单位英文名 1. School of Architecture, Tianjin University, Tianjin 300072, China;
2. School of Resources and Environmental Science, Quanzhou Normal University, Quanzhou 362000, Fujian, China;
3. School of Geography, Fujian Normal University, Fuzhou 350007, China

英文摘要 Air pollution is one of the challenges in achieving the Healthy China strategy, especially the urban air pollution with fine particulate matter (PM_2.5) as the major component. With the remote-sensing data on PM_2.5 concentrations in 2005-2015, this paper analyzes the spatial-temporal characteristics of PM_2.5 concentrations and urban green space indicators of 276 cities in China using coefficient of variation and standard deviation analysis, and then analyzes the impact of green spaces on PM_2.5 concentrations in different regions with panel data models. The results show that:1) PM_2.5 concentrations in China show a fluctuating upward trend with significant regional variations (e.g., PM_2.5 concentrations in eastern region is higher than that in other regions) from 2005-2015; 2) There are significant spatial-temporal differences in five indicators of urban green space; and 3) The influences of per capita green space area on PM_2.5 concentrations in different regions are significantly different, and the green space cover and the green space coverage rate of the built area have strong mitigating effects on PM_2.5 concentrations in each region. In this sense, there are certain regional differences in the effects of urban green spaces on PM_2.5 concentration reduction.

英文关键词 green space;fine particle;regional difference;reduction;China

起始页码 72

截止页码 78

投稿时间 2020/11/17

作者简介 王泽发(1983-),男,博士生,实验师,研究方向为风景园林。E-mail:175472766@qq.com

通讯作者介绍 刘庭风(1967-),男,博士,教授,研究方向为风景园林。E-mail:liutingfeng1590@126.com

E-mail liutingfeng1590@126.com

DOI 10.12169/zgcsly.2020.11.17.0002

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