刺槐林地空气负离子水平  

Aero-anion Concentration in Silver Chain Forest

作　　者：赵雄伟[1] 李春友[2] 葛静茹[3] 刘峰[4] 李德成 陈殿合[4] 杨建民[1] 

机构地区：[1]河北农业大学,保定071000 [2]河北农业大学园林与旅游学院 [3]保定学院 [4]河北省林业局 [5]秦皇岛市林业局

出　　处：《东北林业大学学报》2007年第11期29-31,共3页Journal of Northeast Forestry University

基　　金：河北省林业科学技术研究项目(0307242)

摘　　要：对北戴河联峰山公园刺槐林地内空气负离子水平进行了观测,结果表明:空气负离子密度在1d内存在2个波峰和2个波谷交替变化的规律,波峰分别出现在7:00—11:00、16:00—17:00,波谷出现在11:00—13:00、23:00—1:00。7月份空气负离子密度明显高于其它月份,峰值达到1508个/cm3,且空气负离子密度以7月份为中心呈单峰曲线分布。相关性分析表明,空气负离子密度与温度呈负相关关系,与相对湿度呈正相关关系。An experiment was conducted to study the aero-anion concentration in silver chain forest in Lianfeng Mountain Park of Beidaihe. Results show that there are two wave crests and two troughs in aero-anion concentration curve in a day. The wave crests appear from 7：00 am to 11：00 am and 16：00 pm to 17：00 pm, and the troughs appear from 11：00 am to 13：00 pm and 23：00 pm to 1：00 am. The aero-anion concentration in July with a maximum value of 1 508 ions per cubic centimeter is higher than that in any other month, and the aero-anion concentration shows a single-peak curve with July at the crest. Besides, the investigation also indicates that the aero-anion concentration is negatively correlated with temperature and positively correlated with relative humidity.

关 键 词：刺槐林 空气负离子密度 日变化 年变化 相关关系 

分 类 号：X823[环境科学与工程—环境工程]