石河谷空气质量定量评价结果的比较与分析

发布时间：2018-01-18 09:47

本文关键词：石河谷空气质量定量评价结果的比较与分析?　出处：《宝鸡文理学院学报(自然科学版)》2017年02期 　论文类型：期刊论文

【摘要】：目的比较不同的数据处理方法对于石河谷空气质量定量评价结果以及森林环境条件下空气质量等级划分的影响,为后续研究提供最佳数据处理选择方案。方法利用Origin9.0软件,采用整体平均法和降维法分别对石河谷森林环境空气离子浓度观测结果进行统计分析,并对分析结果进行比较。结果整体平均法、时序降维法和降序降维法FCI计算结果非常接近,而且空气质量清洁度和空气质量分级结果是一致的。但是,升序降维法FCI计算结果普遍偏低,与其它3种数据处理方法相比较,13个观测地点的FCI平均值,有12个与整体平均法、降序降维法和时序降维法对于空气质量分级结果是一致的,仅有1个出现差异,即差异率为7.7%。而且方差分析结果显示,4种不同的数据处理方法,对于森林环境下空气质量评价指标FCI值的影响,不存在显著差异。结论降序降维法和时序降维法都可以作为比较理想的森林环境下空气正负离子浓度测定结果的处理方法,依据FCI平均值来定量评价森林环境的空气质量;而且与整体平均法相比较,因为变量少,更便于进行统计分析。
[Abstract]:Objective to compare the effects of different data processing methods on the quantitative evaluation results of air quality and the classification of air quality in forest environment. To provide the best data processing options for further research. Methods Origin9.0 software was used. The global average method and dimensionality reduction method were used to analyze the observed results of air ion concentration in the forest environment of the stone valley, and the results were compared. The results of sequential dimensionality reduction method and reduced order dimension reduction method FCI are very close, and the results of air quality cleanliness are consistent with those of air quality classification. However, the results of ascending descending dimension method FCI are generally low. Compared with the other three data processing methods, 12 of the FCI mean values of the 13 observation sites are consistent with the global average method, the reduced dimension reduction method and the sequential dimensionality reduction method for air quality classification. There was only one difference, that is, the difference rate was 7.7. The results of variance analysis showed that four different data processing methods had an effect on the FCI value of air quality evaluation index in forest environment. Conclusion both sequential and sequential dimensionality reduction methods can be used to deal with the determination results of positive and negative air ion concentration in forest environment. The air quality of forest environment was evaluated quantitatively according to the average value of FCI. And compared with the global average method, because the variables are less, it is more convenient for statistical analysis.
【作者单位】：宝鸡文理学院学报编辑部;宝鸡文理学院地理与环境学院;宝鸡文理学院体育系;
【基金】：国家自然科学基金项目(No.41071359) 陕西省教育厅科研计划项目(No.JK0546) 陕西省科技统筹创新工程计划项目(No.KTCL03-17)
【分类号】：X823
【正文快照】： 陕西省科技统筹创新工程计划项目(No.KTCL03-17)随着生态旅游的兴起以及人们保健意识的增强,森林小气候产生的空气负离子所具有的医疗保健和杀菌功能被愈来愈多的人所认识,以林业和旅游行业为基础的森林生态旅游、森林浴等活动相继展开,有关空气负离子的研究进入了一个新的阶

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