| 摘要: |
| 城市绿地能够改善城市区域环境污染进而提高人居
环境质量。以北京奥林匹克森林公园绿地为例，选定典型植物
群落结构、群落类型及景观环境样点，基于多年连续动态持
续测定并选取典型年度数据(2020年)，分析和阐释该公园绿
地区域PM2.5、O3及PM2.5-O3复合污染空间分异特征。结果
表明，公园绿地不同群落结构区域的PM2.5浓度，乔灌草/乔
灌/乔草结构低于灌草/草本地被结构；不同群落类型区域的
PM2.5浓度，常绿针叶型/针阔叶混交型/落叶阔叶型低于草本
地被/灌丛；不同典型景观环境中，复层群落结构/双层群落结
构/滨水植物群落/滨水广场区域的PM2.5浓度要低于单层群落结
构。试验中，不同群落结构、类型以及景观环境区域的O3浓度
均高于100μg·m-3且样点间未呈现显著差异；以PM2.5-O3复合
污染值为主要参数的空气质量评价值(AQI)达到“中度污染”
等级，此结果值得进一步关注。以期为基于循证设计的功能
型城市绿地规划设计及更新优化提供基础科学依据。 |
| 关键词: 风景园林 城市绿地 PM2.5-O3 空间分异 循
证设计 |
| DOI： |
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| 基金项目: |
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| Study on Spatial Differentiation of PM2.5-O3 Compound Pollution in Urban Park Green Space—The Case on Beijing Olympic Forest Park |
| PAN Jianbin,CHENG Meijing,ZHU Danli,LI Shuhua,DONG Li |
| Abstract: |
| Urban green space can improve the polluted environment in
urban areas, and then improve the quality of urban living environment.
Taking the green space of Beijing Olympic Forest Park (BOFP) as
an example, the paper selects typical plant community structure,
community type and landscape environment sample points, and
analyzes and explains the spatial differentiation characteristics of PM2.5,
O3, and PM2.5-O3 compound pollution in BOFP based on multi-year
continuous dynamic measurement and typical annual data (2020). The
results showed that the concentration of PM2.5 in different community
structure areas of BOFP was lower in TSG/TS/TG structure than in SG/
G structure; in different community types, the concentration of PM2.5
in ECP/CBP/DBP was lower than in G/S; in different typical landscape
environments, the concentration of PM2.5 in MPC/DPC/WPC/WS is
lower than that in SPC. In the experiment, the concentrations of O3 in
different community structures, types and landscape environment areas
were higher than 100μg·m-3, and there were no significant difference
among the sample points; the air quality index (AQI) with PM2.5-O3
composite pollution value as the main parameter reaches the level
of "moderate pollution", and this result deserves further attention.
The research provides a basic scientific basis for the planning,
design and renewal optimization of functional urban green space
based on evidence-based design. |
| Key words: landscape architecture urban green space PM2.5-O3 spatial differentiation evidence-based design |
