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Position: Home > Articles > Dynamic study on the negative air ions of urban outskirts' forest in Nanjing Journal of Jiangsu Forestry Science & Technology 2016,43 (6) 24-28+55

南京城郊森林空气负离子动态变化研究

作  者:
王磊;万欣;黄利斌;江浩
单  位:
江苏省林业科学研究院
关键词:
空气负离子;季节;天气;相关性;南京
摘  要:
利用HQWAS-200PRO空气负离子监测系统,于2015年6月—2016年5月监测了南京南郊江苏省林业科学研究院内麻栎+枫香树+马尾松林分内空气负离子的浓度,结果表明:林内空气负离子浓度的日变化总体上呈现白天高、晚上低的变化趋势,但随天气不同呈现一定的差异。全年不同天气的负离子日平均浓度大小依次为雨天(6 586个/cm~3)>晴天(2 365个/cm~3)>雾霾天(1 353个/cm~3)>阴天(1 122个/cm~3)。1 a中不同季节空气负离子浓度大小依次为夏季(6-8月)>秋季(9-11月)>春季(3-5月)>冬季(12-2月),其中夏季6月负离子浓度最高,平均达5 432个/cm~3,冬季1月的负离子浓度最低,仅1 421个/cm~3。林内全年空气负离子浓度平均值为2 398个/cm~3。相关性分析结果显示,空气负离子浓度与空气PM2.5含量呈负相关,与风速呈一定的正相关关系,与相对湿度呈正相关,但与温度的相关性不大。
译  名:
Dynamic study on the negative air ions of urban outskirts' forest in Nanjing
作  者:
WANG Lei;WAN Xin;HUANG li-bin;JIANG Hao;Jiangsu Academy of Forestry;Suqian Academy of Agricultural Sciences;
关键词:
Negative air ions;;Season;;Weather;;Correlation;;Nanjing
摘  要:
The dynamics of negative air ions within the forest that included Quercus acutissima,Liquidambar formosana and Pinus massoniana were studied in Jiangsu Academy of forestry,using the monitoring system of negative air ions( HQWAS-200PRO) from June,2015 to May,2016. The results showed that the diurnal variation of negative air ions was high in the daytime and low at night,but there might be different when the weather changed. The number of negative air ions in different weather was different,i. g.,6 586 / cm~3 in rainy day,2 365 / cm~3 in sunshine,1 353 / cm~3 in haze weather,and 1 122 /cm~3 in cloudy day. The number of negative air ions in different season was showed as different. The number from high to low was arranged as in summer,in autumn,in spring and in winter in order,among which that in summer was largest( 5 432 /cm~3),in winter was lowest( 1 421/cm~3). The average number of negative air ions in a year was 3 398 /cm~3. Correlation analysis results showed that the negative correlation were found between the negative air ions number and PM 2. 5,and the negative air ions number had a positive correlation with wind speed and the relative humidity,but the correlation between the temperature and the negative air ions number was not significant.

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