森林康养区空气负氧离子与环境因素相关性研究——以北京松山自然保护区为例

Study on the Correlation between Air Negative Ions and Environmental Factors in Forest Therapy Area——A case study of Beijing Songshan Nature Reserve

以北京松山自然保护区内2020年空气负氧离子浓度以及环境因素为研究对象,采用Origin软件运用线性拟合天气状况与负氧离子浓度的相关性,分析各因素对于空气中负氧离子浓度的影响关系。呈正相关的参数包括温度、相对湿度、光合有效辐射以及NDVI。呈负相关参数包括:大气压、风速以及空气污染物(包括NO、NO2以及SO2)。未呈现明显相关性的参数为颗粒物PM2.5浓度以及PM10浓度。通过各参数对于负氧离子浓度影响关系以及空气中负氧离子形成机理,分析空气中的气体离子化、附着、聚集等化学反应对于负离子浓度的影响关系。

Taking the negative ion concentration in the air and environmental factors in Beijing Songshan Nature Reserve in 2020 as the research object,the correlation between the weather conditions in the forest area and the oxygen negative ion concentration in the air was analyzed by using Origin software and linear regression,At the same time,the relationship between the concentration of air pollutants and the concentration of oxygen negative ions in the air is also analyzed.The positively correlated parameters include temperature,relative humidity,photosynthetic effective radiation and NDVI.The negative correlation parameters include atmospheric pressure,wind speed and air pollutants(including NO,NO2and SO2).The parameter that does not show obvious correlation is PM25concentration and PM10concentration.Through the influence of various parameters on the concentration of negative ions in the air,the possible formation mechanism of negative ions in the air is obtained.Through chemical changes such as ionization,attachment and aggregation the gas in the air form negative ions in the air.The influence trend of each factor on the concentration of negative oxygen ions in the air mainly depends on the influence relationship of this factor on the reactions in the formation of negative oxygen ions.