| 摘要: |
| 城市公园是主要的室外公共空间，其大气颗粒物污
染的时空分布与居民健康密切相关。在秋季晴朗微风天气，
在郑州人民公园5类园林空间(露天广场、草坪、半室内空
间、林下空间、滨水空间)，监测不同空间中颗粒物(PM1、
PM2.5、PM10)浓度和环境因子(风速、温度、湿度、天空可
视因子、叶面积指数)，探究城市公园中不同空间颗粒物浓度
时空分布差异及与环境因子的关系。结果表明，草坪在8：00—
14：00与其他空间PM1、PM2.5浓度有显著差异(P＜0.05)；
不同空间颗粒物浓度日均变化趋势相同，部分时段间存在显著
差异(P＜0.05)，峰谷均在14：00—16：00，因而在颗粒
物浓度较低的14：00—16：00更合适户外活动；相同空间3
种颗粒物浓度均与空气温度显著负相关，与相对湿度显著正相
关；空间内下垫面类型、人群的活动方式、周边植物群落结构
等对颗粒物浓度均有影响。研究结果为公共健康视角下公园规
划设计及居民对公园的使用提供依据和建议。 |
| 关键词: 风景园林 大气颗粒物 气溶胶 城市公园 小
气候 公共健康 |
| DOI： |
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| 基金项目: |
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| Spatiotemporal Distribution of Atmospheric Particles and Influencing Factors in Urban Park Based on the View of Public Health |
| WANG Zuxing,JIN Huan,ZHANG Jingsheng,LEI Yakai |
| Abstract: |
| : The pollution of inhalable particles is increasingly
harmful to public health. Urban parks are the main outdoor public
spaces, and the spatiotemporal distribution of particle pollution is
closely related to the health of people. In sunny and breezy days
of autumn, the study explored the spatiotemporal distribution
characteristics of particulate concentrations in different spaces of
urban parks and their relationship with environmental factors in the
five kinds of landscape spaces (square, lawn, semi-indoor space,
forest space, waterfront space) of urban parks, by monitoring the
concentration of particles (PM1, PM2.5, PM10) and environmental
factors (wind speed, temperature, humidity, sky view factor, leaf
area index) in different spaces of urban parks. The results showed
that there was significant difference in PM1 and PM2.5 concentrations
between lawn and other spaces (P<0.05); the change trend of the
concentration of particulate matter in different spaces was the
same in one day, and there was significant difference between
some periods (P<0.05), the peak and valley were both between
14:00-16:00, so people should do outdoor activities in the period
(14:00-16:00) of low particle concentration; in the same space, the
concentrations of three kinds of particulate matter were negatively
correlated with the air temperature, positively correlated with the
relative humidity; land cover types, ways of people's activities,
and the structure of surrounding phytocoenosium all affected the
concentration of particle. The research results provide basis and
suggestions for park planning and design and people to use parks
based on the view of public health. |
| Key words: : landscape architecture atmospheric particle aerosol urban park microclimate public health |
