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合肥市不同生态功能区空气负离子浓度分布特征及其与气象因子的关系

韦朝领;王敬涛;蒋跃林;张庆国   

  1. 安徽农业大学资源与环境学院, 合肥 230036
  • 收稿日期:2006-02-23 修回日期:2006-08-30 出版日期:2006-11-18 发布日期:2006-11-18

Air negative charge ion concentration and its relationships with meteorological factors in different ecological functional zones of Hefei City.

WEI Chaoling;WANG Jingtao;JIANG Yuelin;ZHANG Qingguo   

  1. College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
  • Received:2006-02-23 Revised:2006-08-30 Online:2006-11-18 Published:2006-11-18

摘要: 空气负离子浓度与空气环境质量密切相关.以合肥市为研究对象,按照4个生态功能区(公园游览区、生活居住区、商业交通繁华区和工业区),同步进行了空气负离子浓度、主要气象要素(光照强度、气温、空气相对湿度等)观测.不同功能区空气负离子浓度的日变化特点是: 公园游览区和生活居住区日变化呈单峰形式,工业区呈双峰形式,而商业交通繁华区则比较复杂;极值出现的时间也有差异;4个功能区空气负离子浓度日变化的波动性从大到小依次为商业交通繁华区>工业区>生活居住区>公园游览区.4个功能区空气负离子浓度年变化趋势基本一致,夏季最高,冬季最低.公园游览区、生活居住区、商业交通繁华区和工业区空气负离子浓度年平均值分别是819、340、149和126 个·cm-3.影响合肥市空气负离子浓度的最主要气象因子是空气相对湿度,其次是光照强度,最小为气温.空气负离子浓度与空气相对湿度呈指数递增关系.

关键词: 菌根真菌, 根际, 菌根际, 磷酸酶活性, 有机磷

Abstract: Air negative charge ion concentration (ANCIC) has a close relationship with air quality. The observations on the ANCIC, sunlight intensity, air temperature, and air relative humidity in different ecological functional zones of Hefei City from 2003 to 2004 showed that the diurnal change pattern of ANCIC was of single peak in sightseeing and habitation zones, dual peak in industrial zone, and complicated in commercial zone. Different ecological functional zones had different appearance time of their daily ANCIC extremum. The diurnal fluctuation of ANCIC was in the order of commercial zone > industrial zone > habitation zone and sightseeing zone. The annual change pattern of ANCIC in these zones was similar, being the highest in summer and lowest in winter, and the mean annual ANCIC was 819, 340, 149 and 126 ions·cm-3, respectively. The most important meteorological factor affecting the ANCIC in Hefei City was air relative humidity, followed by sunlight intensity and air temperature. There was an exponential relationship between ANCIC and air relative humidity.

Key words: Arbuscular mycorrhizal fungus, Rhizosphere, Mycorrhizosphere, Phosphatase activities, Organic phosphorus