九连山国家森林公园负氧离子浓度时空变化及影响要素研究

Temporal and Spatial Variations of Negative Oxygen Ion Concentration and Its Influencing Factors in Jiulian Mountain National Forest Park

负氧离子不仅对空气质量具有改善作用,而且对人体健康起到重要的影响。通过连续观测九连山国家森林公园空气负氧离子浓度,分析负氧离子浓度的时空变化规律及与各气象要素之间的相互关系。结果表明,九连山国家森林公园负氧离子浓度水平达到Ⅰ级标准,对人体健康极有利。原始阔叶林中负氧离子浓度明显高于人工林中负氧离子的浓度,且原始阔叶林和人工林中负氧离子浓度都呈现夏秋高于冬春,夏季最高,冬季最低;早晚浓度明显高于白天浓度的规律。因此九连山国家森林公园适合出游时间为夏秋季,且上午或傍晚最佳。此外,负氧离子的浓度与空气温度、湿度以及降水量都有明显的相关性,同时也受其他气象因素的影响。这些结果可以为推进森林旅游业的建设提供科学支持,特别是自然保护区内负氧离子资源和旅游产品的开发。

The negative oxygen ions(NOIs)in the air not only improve the air quality,but also play an important role on human health.In this paper,the temporal and spatial variations of NOIs and the relationship with various meteorological factors in Jiulian Mountain National Forest Park were analyzed.The results showed that the concentrations of NOIs in the park reached the grade I standard,which were very beneficial to human health.Moreover,the concentration of NOIs in the primitive broad-leaved forest was significantly higher than that in the artificial forest.The concentrations of NOIs were higher in the summer and autumn than those in winter and spring,significantly higher in the morning and evening than that in the daytime.Therefore,it is suitable for tourists to visit the park during the summer or autumn mornings.In addition,the concentrations of NOIs were significantly correlated with the meteorological factors,including air temperature,humidity and precipitation.These results could provide scientific supports for the promotion of forest tourism construction,especially the development of NOI resources and tourism products in nature reserves.