JIANG Ruixin,YAN Xiaoyun,SHI Weiqi,et al.Characteristics of Negative Ions Distribution in Different Plant Communities in Summer and Its Relationship With Meteorological Factors[J].Northern Horticulture,2022,(24):53-58.[doi:10.11937/bfyy.20221564]
夏季不同植物群落负离子特征及其与气象因子关系
- Title:
- Characteristics of Negative Ions Distribution in Different Plant Communities in Summer and Its Relationship With Meteorological Factors
- Keywords:
- air negative ions concentration; plant communities; urban park green space; meteorological factors
- 文献标志码:
- A
- 摘要:
- 以呼和浩特市树木园7种不同植物群落及对照点(CK)为研究对象，通过同步监测不同植物群落及对照点内空气正、负离子浓度，温湿度、风速、露点温度等气象因子，研究了夏季呼和浩特市树木园内不同植物群落空气负离子浓度时空分布规律及其与气象因子的关系，并评价了不同监测点空气质量状况，以期为城市绿地空间设计及城市森林康养活动的建设提供参考依据。结果表明：各群落空气负离子浓度日变化趋势大体呈“V”型，即08：00和18：00各出现一个峰值，12：00出现最低值。各监测点负离子浓度日均值从高到低依次为樟子松群落(S1)、丁香群落(S2)、五角槭-元宝槭群落(S4)、油松-丁香-茶藨子群落(S5)、油松-丁香-榆叶梅群落(S7)、油松群落(S3)、云杉-榆叶梅-接骨木群落(S6)、硬质广场(CK)。空气负离子浓度与温度、风速、露点温度、相对湿度均呈极显著或显著相关，与大气压无显著相关性。树木园内各植物群落空气质量等级为允许浓度和保健浓度，日变化趋势与空气负离子日变化基本一致。
- Abstract:
- Seven different plant communities and control sites (CK) in Hohhot Arboretum were used as test materials，positive and negative air ions concentrations,meteorological factors such as temperature,humidity,wind speed,and dew point temperature in different plant communities and control sites were monitored simultaneously,the spatial and temporal distribution patterns of air negative ions concentration in different plant communities in Hohhot Arboretum in summer and its relationship with meteorological factors were studied,and the air quality conditions at different monitoring points were evaluated,in order to provide reference for the design of urban green space and the construction of urban forest recreation activities.The results showed that the daily trend of negative air ions concentration in each community was generally ‘V’ shaped.In other words,there was a peak at 08：00 and 18：00,and a minimum at 12：00.The daily average values of negative ion concentration at each monitoring site were,in descending order,such as Pinus sylvestris community (S1),Syringa oblata community (S2),Acer mono Maxim-Acer truncatum Bunge community (S4),Pinus tabulaeformis-Syringa oblate-Ribes nigrum community (S5),Pinus tabulaeformis-Syringa oblate-Prunus triloba community (S7),Pinus tabulaeformis community (S3)，Picea dietr-Prunus triloba-Sambucus williamsii (S6),and hard square (CK).The concentration of negative ions in the air was extremely significantly or significantly correlated with temperature,wind speed,dew point temperature,and relative humidity,and had no significant correlation with atmospheric pressure.The air quality classes for each plant community in the arboretum were permissible and health concentrations,and the daily trends were generally consistent with the daily changes in negative air ions.
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备注/Memo
第一作者简介：蒋瑞欣（1997-），女，硕士研究生，研究方向为风景园林学。E-mail：3319808450@qq.com.责任作者：闫晓云（1968-），女，博士，副教授，现主要从事风景园林规划设计等研究工作。E-mail：Lzyyxy0607@tom.com.基金项目：内蒙古自治区自然科学基金资助项目（2019BS03018）。收稿日期：2022-04-18