冬季不同植物群落对大气颗粒物浓度的阻滞作用  

Blocking effects of plant communities on atmospheric particles in winter

作　　者：张凌[1] 郭悦 唐蒲霞 赵佳伦 王冬梦[1] 刘艺平[1] 孔德政[1] ZHANG Ling;GUO Yue;TANG Puxia;ZHAO Jialun;WANG Dongmeng;LIU Yiping;KONG Dezheng(College of Landscape Architecture and Art,Henan Agricultural University,Zhengzhou 450002)

机构地区：[1]河南农业大学风景园林与艺术学院,郑州450002

出　　处：《南京信息工程大学学报（自然科学版）》2023年第1期16-23,共8页Journal of Nanjing University of Information Science & Technology（Natural Science Edition）

基　　金：国家自然科学基金(31600579);河南省科技攻关计划(202102110234);河南省高等学校重点研究项目(21A220003)。

摘　　要：为探讨不同植物群落对大气颗粒物浓度的影响,以郑州市金水区为例,在2020年冬季(2020年12月—2021年2月)对园林绿化区(数码公园)、居住区(正弘·蓝堡湾)、文教区(河南农业大学)内植物群落的PM_(2.5)和PM_(10)质量浓度及气象因子(温度、相对湿度和风速)进行监测.结果表明:每个功能区中不同样地之间的PM_(2.5)、PM_(10)质量浓度日变化趋势基本一致,一般为早高晚低;不同植物群落之间PM_(2.5)和PM_(10)质量浓度存在显著差异性,其中广场样地与其他样地的差异性最显著;3个功能区中各样地对PM_(2.5)和PM_(10)质量浓度的阻滞率均表现为乔灌草结构最高,乔灌结构和乔草结构次之,且多表现为乔灌样地大于乔草样地,灌草结构和草坪最低;研究区域PM_(2.5)、PM_(10)质量浓度与温度呈负相关,与相对湿度呈正相关,与风速呈负相关.To explore the blocking impact of plant communities on atmospheric particulate matters, we monitored the PM_(2.5)and PM_(10)concentrations and related meteorological factors near plant communities in three functional areas of Zhengzhou’s Jinshui district, which were garden area(Digital Park),residential area(Zhengzhou Blue Bay),and cultural & educational area(Henan Agricultural University).The monitoring period covered a whole winter from December 2020 to February 2021.The results indicated that the diurnal variation trends of PM_(2.5)and PM_(10)concentrations were basically the same for all sampling plots, which were generally high in early morning and low in evening;obvious differences in PM_(2.5)and PM_(10)concentrations were observed among plant communities, which were most significant between the square plot and other plots;for the three functional areas, the blocking of PM_(2.5)and PM_(10)were all the strongest by the combined structure of arbor, shrub and grass, followed by arbor & shrub and arbor & grass structures, and the lowest by structure of shrub & grass and single structure of grass;the PM_(2.5)and PM_(10)concentrations were observed to be negatively correlated with temperature and wind speed, and positively correlated with relative humidity.

关 键 词：城市功能区 城市绿地 植物群落 大气颗粒物浓度 

分 类 号：X513[环境科学与工程—环境工程]