摘要
利用南京市浦口区境内老山森林、农庄、珍珠泉、石桥万诚4个观测点2014年10月~2015年10月大气负(氧)离子观测资料,分析了浦口区大气负(氧)离子浓度的时空变化特征及其与气象因子的关系。结果表明:(1)浦口区日平均大气负(氧)离子浓度为688个/cm^3,最大值约在21:00,为986个/cm^3,最小值约在12:00,为610个cm^3;(2)浦口区年平均大气负(氧)离子浓度为675个/cm^3,其中夏季最高,为728个/cm^3;冬季最低,为538个/cm^3;(3)浦口区大气负(氧)离子空间分布规律为:农庄>珍珠泉>老山森林>石桥万诚;(4)不同天气条件下大气负离子与气象因子的相关性不同,如雨日,大气负离子与降水量、气温、相对湿度显著相关(P<0.01);无雨天,大气负离子与日照显著相关(P<0.05)。
Spatiotemporal characteristics of negative air ions concentrations and their relationships with meteorological factors in Pukou （Laoshan Forest, Nongzhaung, Pearl Spring, Shiqiaowancheng ） were analyzed between Oct 2014 and Oct 2015. The results showed that： （1） The daily average concentration of negative air ions were 688/cm3 in Pukou （Nanjing）, the maximum value of 986/cm3 appeared around 21：00; the minimum value of 610 appeared around 12：00; （2） The annual average concentration of negative air ions were 675/cm3 in Pukou （Nanjing）, and the largest average concentration was 728/cm3 in summer, while the lowest was 728/cm3 in winter; （3） The negative air ions concentration was the largest in Nongzhuang, while the lowest in Shiqiaowancheng; （4） In different weather conditions, the relationships between negative air ions concentration and meteorological factors were different. In rainy, negative air ions were significantly correlated with precipitation, temperature and relative humidity （P 〈 0.01）. In non-rainy days, negative air ions were significantly correlated with sunshine （P 〈 0.05）.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2017年第5期706-712,共7页
Resources and Environment in the Yangtze Basin
基金
中国清洁发展机制基金赠款项目(2013013)
国家科技支撑计划(2012BAD16B0305
2012BAC23B01)~~
关键词
负(氧)离子
浓度变化
空间分布
气象因子
negative air ion
concentration variation
spatial distribution
meteorological factors
