冬季不同植物群落对大气颗粒物浓度的阻滞作用
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河南农业大学

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国家自然科学基金项目(面上项目,重点项目,重大项目)


Blocking Effects of different plant community on the concentration of atmospheric particles in winter
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Henan Agricultural University

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The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    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PM2.5和PM10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 PM2.5、PM10浓度日变化趋势基本一致,一般呈早高晚低;不同植物群落之间PM2.5和PM10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PM2.5和 PM10的阻滞率均表现为乔灌草结构最高,乔草结构和乔灌结构次之,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PM2.5、PM10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。

    Abstract:

    In order to explore the impact of different plant communities on atmospheric particulate matter concentration,taking Jinshui District of Zhengzhou City as an example, in the winter of 2020 (December 2020-February 2021), there will The PM2.5 and PM10 concentrations and meteorological factors (temperature, humidity and wind speed) of the plant communities in Lanbaowan) and the Cultural and Educational District (Henan Agricultural University) were monitored. The results indicated that the diurnal variation trend of PM2.5 and PM10 concentrations was basically the same between different places in each functional area.generally showing early high and late low; there are significant differences in PM2.5 and PM10 concentrations between different plant community structures, and the difference between the square plot and other plots is the most significant; In the three functional areas, the blocking rates of PM2.5 and PM10 were all the highest in arbor, shrub and grass structure, followed by arbor and grass structure, which were mostly higher in arbor and grass plot than in arbor and grass plot, and the lowest in shrub and grass plot and lawn; PM2.5, PM10 concentration has a negative correlation with temperature, a positive correlation with relative humidity, and a negative correlation with wind speed.

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  • 收稿日期:2021-09-07
  • 最后修改日期:2022-01-18
  • 录用日期:2022-01-24
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