不同模式城郊风景游憩林对空气负离子浓度的影响

Effect of Different Modes of Suburban Scenic Recreational Forests on Concentration of Air Negative Ions

[目的]研究不同模式城郊风景游憩林对空气负离子浓度的影响。[方法]选取济南南部山区有代表性的3种不同模式城郊风景游憩林,进行负离子浓度测定。[结果]全年中各模式日均空气负离子浓度大小顺序相同(休闲保健型>生态防护型>林果经济型),负离子系数在各个季节均高于0.5,且夏季空气负离子浓度最高;各模式空气负离子浓度日变化曲线呈现出2个高峰值;休闲保健型和生态防护型在夏、秋两季,林果经济型在秋季,FCI都超过0.5,达到Ⅳ级。[结论]为城郊风景游憩林的建设质量评价提供了技术参考和理论支撑。

[ Objective] The aim was to study the effects of different modes of suburban scenic recreational forests on the concentration of air negative ions. [ Method] Three different typical modes of suburban scenic recreational forests in the southern mountain area of Jinan City were selected and the negative air ions concentration was measured. [ Results] Daily average negative air ion concentration of different modes were sorted consistently （ mode for Recreation and Health Cares 〉 mode for Ecological Proiection 〉 Economic Forest mode ）, the indices of Nega- tive Air Ions were higher than 0, 5 in different seasons, and the concentration of Negative Air Ion was the highest in summer; there was two peak values in the curve of Negative Air Ion Concentration daily variation of Different Modes ; FCI of mode for Recreation and Health Cares or mode for Ecological Protection in summer and autumn was higher than O. 5 respectively, and that of Economic Forest mode was also higher than 0.5; so they reach grade IV according to the grading criterion. [ Conclusion] The study provided technical reference and theoretical support for quality assessment of the construction of suburban scenic recreational forests.