【摘要】 于2016年1月份连续7 d,对龙岩国家森林公园5类游憩地15个检测点的空气负离子浓度、气象因子等数据进行实测,进行数据分析,结果表明:(1)园内空气负离子浓度日均值为7 108.06个/cm3,达到世界卫生组织所规定的具有保健效果的浓度;(2)园内林地负离子浓度日变化规律基本为双峰式,在07:00—09:00出现第1次峰值,在13:00—15:00出现第2次峰值;次生林在13:00—15:00达到1 d中的最高值;茶园内空气负离子浓度日变化规律整体呈现从07:00—17:00逐渐下降的趋势;动态水的峰值出现在09:00—11:00,15:00—17:00 2个时段内;(3)园内日均负离子浓度含量从高到低依次为:水体旁、茶园、次生林、空旷地、天然林;(4)气象因子与负离子浓度的相关性研究显示,负离子浓度与相对湿度呈极显著负相关,而同气压呈显著正相关。更多还原

【Abstract】 A field measurement was made at 15 monitoring points of 5 kinds of recreational sites of Longyan National Forestry Park,testing the data of the aero-anion concentration,meteorological factors and other relevant data for 7 consecutive days in January,2016.The analysis of the data showed that: 1) the air anions had an average daily concentration of 7 108. 06 particles / cm3. The concentration met the requirements set by the World Health Organization and had a health care effect.So this park is a good place for recreation and entertainment; 2) the rule of the daily variation of anion concentrations in the sample areas in the park was basically.The first peak value appeared at 07: 00-09: 00 in the morning,and the second peak value appeared at 13: 00-15: 00 in the afternoon; the concentration in the coniferous forest reaches its maximum at 13: 00-15: 00 on each day;the rule of the daily variation of anion concentrations in the tea garden began to show a declining trend at07: 00 am; the peak value in the dynamic water appeared at 09: 00-11: 00 and 15: 00-17: 00; 3) the average daily anion concentration in the parts of the park showed a descending order: the zones near water,tea garden,coniferous forest,open field and broad-leaved forest; 4) a research of the correlation between meteorological factors and aero-anion concentration showed that there was a highly significant negative correlation between aero-anion concentration and relative humidity,while there was a significant positive correlation between aeroanion concentration and atmospheric pressure.更多还原