中文摘要：

通过监测雾天吊罗山热带雨林空气负离子含量,探索其与雾等级（强度）以及风速、气温等气象因子之间的关系.研究结果表明：1）轻雾条件下的空气负离子含量显著高于晴天及雾强度更高条件下的空气负离子含量;2）随着雾强度从大雾升至特强浓雾,空气负离子含量有下降趋势,但是差异并不具有统计学意义;3）有雾条件下,气温对吊罗山热带雨林空气负离子含量的影响显著,具体表现为随着气温的升高,空气负离子含量增多,反之减少.风速对雾天空气负离子含量的影响不显著.

英文摘要：

Negative air ion concentration （NAIC） under sunny and fog conditions and selected meteorological elements （wind velocity, air temperature） were determined in Diaoluoshan Tropical Rainforest located in Hainan island, and NAIC un- der different conditions are compared. The relationship between NAIC and wind velocity, air temperature were analyzed. The results showed that： 1 ） NAIC under Mist conditions was significantly higher than that of sunny and other fog conditions with higher intensity. 2）As the intensity of fog getting greater from fog to super thick fog, NAIC showed a slightly trend; however, the decline is not statistically significant. 3）There was a positive relationship between NAIC and air temperature under fog conditions, i.e., the higher temperature was, the greater the NAIC would be, and vice versa. There was no significant relation- ship between NAIC and wind speed under foggy conditions.