玉溪空气负氧离子变化特征分析

利用2008～2011年玉溪市9县区及主要旅游景点14台大气负氧离子自动测报系统适时观测数据,使用相关分析、灰度分析、回归分析、GIS空间分析等方法,分析空气中负氧离子变化规律;参照世界卫生组织制定的空气负氧离子等级标准,对玉溪市8县1区空气负氧离子等级进行区划。结果表明玉溪市空气负氧离子浓度有明显的日变化特征,早晨6～7点最高,下午4～5点最低,然后又逐渐升高;有森林地区空气负氧离子浓度明显高于无林地区;湖泊、瀑布等水体所在区域空气负氧离子浓度明显高于无水体区域。

VARIATION ANALYSIS OF AIR NEGATIVE OXYGENIONS IN YUXI

Use the 2008 to 2011 Yuxi nine counties and major tourist attractions 14 units atmosphere of negative oxygenions automatic measuring system timely observational data, using correlation analysis, gray - scale analysis, regression analysis, spatial interpolation methods, analysis of negative oxygenions in the air variation, Reference to the World Health Organization＇s air negative oxygenions grading standards, the Yuxi City eight counties and one district level for the air division of negative oxygenions; results showed that the Yuxi air concentration of negative oxygen ions have a clear diurnal variation, the highest point of the morning 6 -7, 4 -5 at the lowest point, and then gradually increased; the forest region of negative oxygen ion concentration in air significantly higher than non - forest areas ; Lakes, waterfalls and other water areas where the air of negative oxygenion concentration was significantly higher than the other region.