Temporal And Spatial Characteristics Of Air Negative Oxygen Ion Concentration In Different Habitats Of Urban Ecosystem

As the one of the important climatic factor in peoples living environment negative oxygen ion is an indispensable condition for peoples survival.This article has five locations in Hohhot.The air negative oxygen ions were monitored since May,2015 to December,2016.The time and spatial variation of air negative ion concentration were analyzed,and the correlation between negative oxygen ions and meteorological factors and environmental factors.The characteristics of negative oxygen ions in spring,summer,autumn and winter were analyzed.Finally put forward some advice on urban planning as well as the further use of air negative ionsThe results are as follows:(1)There are obvious time variation law of air negative oxygen ion concentration and air quality in Hohhot.The air negative oxygen ion concentration and air quality are the lowest in 12-1 month,the highest in August and September,and the negative oxygen ion concentration from January to the following year And air quality decreased significantly,and then began to gradually rise to 6-8 months to reach the highest air negative oxygen ion concentration and air quality in summer and autumn.(2)In the study of the correlation between air negative oxygen ion concentration and meteorological factors,the concentration of negative oxygen ions in the five monitoring points is positively correlated with the temperature and humidity,while the residential area and the arboretum are negatively correlated with the wind speed.irrelevant.During the course of the year,there was a significant negative correlation or negative correlation between the negative oxygen ion concentration and the atmospheric pressure.(3)The results show that the total change trend of air negative oxygen ion concentration is Summer>autumn>spring>winter.The results show that the air negative oxygen ion concentration in the four monitoring sites of Hohhot is four years.