城市公园绿地区域PM_(2.5)-O_(3)复合污染空间分异特征研究——以北京奥林匹克森林公园为例  

Study on Spatial Differentiation of PM_(2.5)-O_(3) Compound Pollution in Urban Park Green Space——The Case on Beijing Olympic Forest Park

作　　者：潘剑彬[1] 程美景 朱丹莉 李树华[2] 董丽[3] PAN Jianbin;CHENG Meijing;ZHU Danli;LI Shuhua;DONG Li

机构地区：[1]北京建筑大学建筑学院,北京100044 [2]清华大学建筑学院,北京100084 [3]北京林业大学园林学院,北京100083

出　　处：《中国园林》2023年第2期103-107,共5页Chinese Landscape Architecture

基　　金：国家自然科学基金项目“基于负氧舒适度的建筑室外绿地参数化景观设计基础研究”(编号51641801);未来城市设计高精尖创新中心2019年度课题(编号UDC2019021824)共同资助。

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PM_(2.5)、O_(3)及PM_(2.5)-O_(3)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PM_(2.5)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PM_(2.5)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PM_(2.5)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O_(3)浓度均高于100μg·m^(-3)且样点间未呈现显著差异;以PM_(2.5)-O_(3)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。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 PM_(2.5),O_(3),and PM_(2.5)-O_(3)compound pollution in BOFP based on multi-year continuous dynamic measurement and typical annual data(2020).The results showed that the concentration of PM_(2.5)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 PM_(2.5)in ECP/CBP/DBP was lower than in G/S;in different typical landscape environments,the concentration of PM_(2.5)in MPC/DPC/WPC/WS is lower than that in SPC.In the experiment,the concentrations of O_(3)in different community structures,types and laudscape environment areas were higher than 100μg·m^(-3),and there were no significant difference among the sample points;the air quality index(AQI) with PM_(2.5)-O_(3)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.

关 键 词：风景园林 城市绿地 PM_(2.5)-O_(3) 空间分异 循证设计 

分 类 号：TU986[建筑科学—城市规划与设计]