环境气象因素对植物释放负离子能力的影响

Effect of meteorological elements on the generating capacity of negative air ion from plants

对植物在不同空气相对湿度、温度和光照强度等环境要素下释放负离子的浓度进行研究,结果表明:单株植物在自然状态下释放负离子的能力很弱,而施加脉冲电场刺激时植物释放负离子的能力显著提升(P<0.05);在脉冲电场刺激下,以空气相对湿度对植物释放负离子的影响最为显著,空气相对湿度为20%时植物释放负离子的能力接近自然状态下的水平,随着空气相对湿度的增加植物释放负离子的能力不断提高;光照强度越大植物释放负离子能力越强;温度的影响最弱,仅在温度较低(5.0℃)的环境下释放负离子的能力才受到抑制。

In this paper,the generating capacity of negative air ions from plants was studied under the conditions of different environmental elements such as air relative humidity,temperature and illumination intensity.The results showed that the capacity of individual plant to generate NAI is very weak in natural condition.However,the ability of plants to release negative ions was significantly enhanced by impulse electric field stimulation(P<0.05).Under the stimulation of pulsed electrical field,the capacity of the plant to release negative ions was close to the level under natural condition when the humidity was 20%,and this capacity continuously enhanced with the increase of humidity.Similarly,the greater light intensity,the stronger releasing ability of plants negative ions.And the effect of the temperature on NAI generation was the weakest,and the ability to release negative ions is inhibited only at a condition of lower temperature(5.0℃).