不同天气状况下吊罗山热带雨林空气正负离子含量比较

Comparison of positive and negative air ion concentration in Diaoluoshan rainforest under different weather conditions

对不同天气状况下吊罗山热带雨林空气正负离子含量进行监测,采用单因素方差分析和配对样本t检验,比较空气正离子与负离子的含量及其变化.结果表明,空气正离子含量因天气状况不同有一定程度的变化,但变化幅度较小;而负离子含量变化非常剧烈,远大于正离子含量的变化幅度.在同一天气状况下,阴天和雾天空气正离子与负离子含量无显著性差异(P>0.05);其他天气条件下,即晴天及所有的雨天,空气负离子含量均显著高于正离子(P<0.05).除雾天单极系数略高于1外,其他天气状况下,吊罗山热带雨林的单极系数均低于1;其中,晴天、阴天与1级降雨条件下单极系数值接近于1;2级及以上降雨强度单极系数值均小于0.3,随着降雨强度的增大,单极系数值越来越小,最小值为0.09;降雨强度越大,单极系数越小,空气越清洁.从空气负离子含量来看,吊罗山热带雨林森林环境在各种天气状况下都有利于人体健康,适宜开展保健养生旅游.

Positive air ion concentration（PAIC） and negative air ion concentration （NAIC） under different weather conditions in Diaoluoshan Tropical Rainforest are determined ,and compared using ANOVA and paired t-test methods .Under different weather conditions ,NAIC varies significantly ,while PAIC varies slightly .Under cloudy and foggy conditions ,PAIC and NAIC have no significant difference（P〉0.05）;however , under sunny day and rainy day , the NAIC is significantly higher than PAIC （P〈0.05） . The ion polarity ratio of Diaoluoshan tropical rainforest is slightly above 1.0 under foggy conditions . However , under other weather conditions , the ion polarity ratio is lower than 1.0 , specifically , it becomes lower and lower when the rainfall intensity gets greater . The lowest value is 0.09 . The higher rainfall intensity , the lower ion polarity ratio is , and cleaner the air is . NAIC under different weather conditions in Diaoluoshan Tropical Rainforest is higher than 1000 cm ^-3 , and it benefits to health of human beings . As a result , Diaoluoshan rainforest can be develop into an ideal healthcare tourism area .