广州帽峰山林区空气负离子动态及与环境因子的关系  

Dynamic of negative air ions and its relationship to environmental factors in Maofeng Mountain,Guangzhou

作　　者：徐猛[1] 陈步峰[1] 粟娟 史欣[1] 潘勇军[1] 肖以华[1] 周韶鉴 

机构地区：[1]中国林科院热带林业研究所,广东广州510520 [2]广州市林业局,广东广州510030

出　　处：《生态环境》2008年第5期1891-1897,共7页Ecology and Environmnet

基　　金：国家“十一五”林业科技支撑计划专题(2006BAD03A0601,2006BAD03A0601-3);广州市林业局城市森林生态效益监测项目(2007);广州地区“青山绿地-城市林区林带”环境生态效益监测项目(2005-2008)

摘　　要：采用定位连续观测方法,研究了广州帽峰山森林公园负离子含量近5年的年、季、月变化及不同天气的变化规律,并以此对帽峰山森林公园的空气质量进行了计量评价,分析了空气负离子含量与环境因子的相关关系。结果表明:林区不同观测区的负离子含量差异较大,山下瀑布空间负离子含量最高,平均水平达达21729ions·cm-3;林内负离子含量年间及月间变化不大,沟谷小溪和山中部瀑布空间由于人为干扰,负离子含量年动态呈现降低趋势,山下瀑布空间年负离子含量维持在20000ions·cm-3左右;负离子含量的季节差异显著,春夏季大于冬秋季,夏季最高、冬季最低。空气质量评价系数CI的最低在2月份、最高在8月份。不同天气条件下负离子含量大小顺序为下雨>晴天>阴天。负离子含量与空气温度呈正相关,与空气湿度呈正相关,与空气气压呈负相关。The annual, seasonal, monthly variation of air negative ions and its variation during different weather were studied through orientation observation. The air quality was estimated according to negative ions concentrations, and the correlations between negative ions concentrations and environmental factors were analyzed in Maofeng mountain forest park of Guangzhou in recent years. The results showed that negative ions concentration at the foot of mountain waterfall was highest, with an average of 21 729 ions·cm^-3; The variation of negative ions in forest was little while the negative ions concentration around streamlet and mountainside decreased because of human disturbance, and the average negative ions concentration at the foot of mountain waterfall were maintained at about 20 000 ions·cm^-3 in recent years. The average negative ions concentration was highest during summer and lowest during winter. During the whole year, February had the lowest CI while CI was highest in August. Negative ions concentration in the different weather conditions was： rainy〉sunny〉cloudy; There was positive correlation between negative ions concentrations and temperature and humidity, but negative correlation with air pressure.

关 键 词：空气负离子 空气质量评价系数(CI) 定位研究 帽峰山 常绿阔叶林 

分 类 号：X13[环境科学与工程—环境科学]