木兰围场不同林分负离子分布及其变化研究

Distribution and Changes of Negative ions in Different Forests in Mulan Paddock

为了解围场不同林分空气负氧离子浓度及变化情况,采用美国产AIC1000空气正负离子检测仪和YGS-0006A温湿度测定仪,采用定时、定点的方法,对华北落叶松、油松人工林和落叶阔叶混交林的空气正、负离子浓度、气温、相对湿度进行了同步观测。结果表明:落叶阔叶混交林的空气负离子浓度明显高于华北落叶松和油松人工纯林,油松纯林高于华北落叶松纯林;空气负离子浓度日变化呈现双峰曲线规律,在10:00和23:00左右达到高峰值,在4:00和16:00左右达到低值。

In order to understand the air negative oxygen ion concentration and changes in different forest stands in the paddock,the American AIC1000 air positive and negative ion detector and the YGS-0006A temperature and humidity tester were used,and the method of timing and fixed point was used to analyze the plantation of Larix principis-rupprechtii and Pinus tabuliformis.The air positive and negative ion concentration,temperature,and relative humidity of mixed deciduous broad-leaved forest were simultaneously observed.Result shows that the air anion concentration in the deciduous broad-leaved mixed forest is significantly higher than that of Larix principis-rupprechtii and Pinus tabuliformis pure forests,and the pure Pinus tabuliformis forest is higher than that of the Larix principis-rupprechtii pure forests.It reaches high peaks around 10:00 and 23:00,and reaches low values around 4:00 and 16:00.