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利用便携式空气负离子测定仪(AIC1000),对不同林龄马尾松林的空气负离子水平进行测定和研究.结果表明:同一马尾松林分内不同空间结构的空气负离子水平差异不具有统计学意义(p>0.05),而不同林龄马尾松林的空气负离子水平差异则极具有统计学意义(p<0.01);相比中龄林,马尾松过熟林、幼龄林、成熟林和近熟林的空气负离子水平分别提高90.81%,55.48%,43.82%和34.63%;马尾松林提供负离子功能及服务价值大小排序为过熟林、成熟林、近熟林、幼龄林、中龄林.研究结论为马尾松过熟林能有效提高空气负离子水平、具有较强的净化空气功能和服务价值,而中龄林的净化空气功能及服务价值最差.
The air anion level of Pinus massoniana forest was measured and studied by Portable Air Anion Analyzer (AIC1000) .The results showed that there was no significant difference in air anion level in different spatial structure of Pinus massoniana forest (p> 0.05 (P <0.01). Compared with the mid-age forest, over-mature Pinus massoniana forest, young forest, mature forest and near-mature forest air anion And the level of service quality increased by 90.81%, 55.48%, 43.82% and 34.63%, respectively.Monon-pine forest provided negative ion function and service value ranked as over-mature forest, mature forest, near-mature forest, Over-mature forest can effectively improve the air anion level, has a strong purifying air function and service value, while the middle-aged forest air purification function and service value of the worst.