Abstract: The aero-anion concentrations above the different function areas in Xiamen city were measured to analyze not only the relationship between the aero-anion concentrations and vegetation but also the relationship between the diurnal variation pattern and temperature and relatively humidity (RH).The results indicated that the air quality was in order of large scale arboretum and park >uptown >sowntown >beach >industrial park >piazza.The aero-anion concentration was higher during night time than during day time.Over a whole day its maximum appeared in wee hours, and the minimum in noontime.The aero-anion concentrations felled with the temperature rising and rose with the relative humidity (RH) increasing.

Key words: city, function areas, urban vegetation, aero-anion, air quality

摘要： 通过对厦门城市不同功能区空气负离子浓度的监测,分析空气负离子浓度与植被的关系及其日变化规律与气温和空气相对湿度之间的关系。结果表明:(1)城市功能区空气质量优劣顺序为:植物园、公园> 住宅小区> 商业街区> 海滩码头> 工业区> 广场,空气质量与植被丰富度有较强的正相关;(2)空气负离子浓度在日变化中呈现白天低、夜间高的特点,凌晨最高,中午最低,傍晚出现小波峰;(3)空气负离子浓度随气温的升高而降低,随空气湿度的升高而升高。

关键词: 城市, 功能区, 城市植被, 空气负离子, 空气质量