江西大岗山负离子浓度与气象因子之间的响应关系

Response Relationship between Air Anion Concentration and Meteorological Factors in Dagangshan of Jiangxi Province

利用江西大岗山森林生态地面标准气象观测场内2019年度空气负离子和气象监测数据,分析了负离子浓度与气象因子之间的响应关系。结果表明:1)该地区年均负离子浓度1411.5个/cm^(3)。夏季负离子浓度和温度呈负相关、和湿度呈正相关,在其余季节负离子浓度和温度呈正相关、与湿度呈负相关。2)无雨天与日降雨量少于50 mm的雨天,负离子浓度与温度呈负相关,与湿度呈正相关;暴雨天负离子浓度与温度呈正相关,与湿度呈较弱的负相关。3)不同季节,温度、湿度的大幅变化常伴随着负离子浓度的大幅变化,而温度、湿度变化较小时,负离子浓度的变化幅度也较小,说明温度、湿度的变化对负离子浓度的影响很大。4)暴雨过程中,负离子浓度随降水量的增加(减少)而增大(减小);暴雨发生时,负离子浓度急剧增大。

Based on the air anion and meteorological monitoring data in 2019 from the standard meteorological observation field of forest ecological ground in Dagang Mountain,the response relationship between air anion concentration and meteorological factors was analyzed.The main results were as follows:1)The annual average anion concentration was 1411.5/cm^(3) in this area.In summer,the anion concentration presented negative correlation with temperature and positive correlation with humidity,while in other seasons,the anion concentration presented positive correlation with temperature and negative correlation with humidity.2)In no rain days and rainy days with daily rainfall less than 50 mm,the anion concentration presented negative correlation with temperature and positive correlation with humidity.However,during the rainstorm days,the anion concentration exhibited a positive correlation with temperature and a weak negative correlation with humidity.3)In each season,the significant variations of temperature and humidity were often accompanied by the great change of anion concentrations.However,when the temperature and humidity were relatively stable,the variation amplitude of anion concentration was small,which indicated that the variation of temperature and humidity had strong impacts on the concentration of anion.4)In the process of the torrential rain,the concentration of anion increased(decreased)with the increases(decreases)of precipitation,and the anion concentration increased significantly during the torrential rain.