主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2018, Vol. 34 ›› Issue (2): 61-68.doi: 10.3969/j.issn.1673-503X.2018.02.008

• 论文 • 上一篇    下一篇

峨眉山景区负氧离子浓度变化特征及预测模型研究

张勇, 陈兰英, 刘婷, 肖娟   

  1. 西华师范大学环境科学与工程学院, 四川 南充 637009
  • 收稿日期:2016-10-17 修回日期:2017-02-09 出版日期:2018-04-30 发布日期:2018-04-30
  • 通讯作者: 肖娟,E-mail:xiaojuanhj@163.com E-mail:xiaojuanhj@163.com
  • 作者简介:张勇,男,1994年生,在读本科生,主要从事数值模拟和大气污染控制研究,E-mail:634761802@qq.com。
  • 基金资助:
    西华师范大学大学生科技创新项目(427306)和西南野生动植物重点实验室基金项目(XNYB09-04)共同资助。

Change characteristics and prediction model about concentration of anions in the Emei mountain scenic spot

ZHANG Yong, CHEN Lan-ying, LIU Ting, XIAO Juan   

  1. College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China
  • Received:2016-10-17 Revised:2017-02-09 Online:2018-04-30 Published:2018-04-30

摘要: 基于2015年9月至2016年8月峨眉山景区的负氧离子浓度和空气质量指数(Air Quality Index,AQI)的监测资料及气温、相对湿度及降水量的观测资料,分析了峨眉山景区负氧离子浓度的季节变化特征及其与相关气象要素的关系,并建立了适用于峨眉山景区的负氧离子浓度预测模型。结果表明:2015年9月至2016年8月峨眉山景区负氧离子浓度达到森林空气负离子二级标准,且具有明显的季节变化特征,秋季负氧离子浓度最高,春和夏季次之,冬季负氧离子浓度最低。AQI、气温和降水量是影响峨眉山景区负氧离子浓度的关键气象因素,秋季温度适宜、降雨充沛、空气湿润及植物生物量大等为负氧离子浓度较高的原因,冬季混交林落叶树木的落叶和植物生物量降低、降雨较少及空气干燥等为负氧离子浓度较低的原因。运用S模型建立的峨眉山景区负氧离子浓度的预测模型为:y=exp(1.4552/x+7.5988),模型预测效果较好;插值逼近的负氧离子浓度三维预测模型的决定系数为1,模型拟合效果较好,可以清晰地反映峨眉山景区负氧离子浓度与解释参数之间的规律。建立的峨眉山景区负氧离子浓度S预测模型可以预报负氧离子浓度,负氧离子浓度三维预测模型可以用于负氧离子浓度分析预报系统的设置,更适用于峨眉山景区负氧离子浓度的预测。

关键词: 峨眉山景区, 负氧离子, 气象因子, 三维模型, S模型

Abstract: Based on the data of concentration of anions,air quality index (AQI),temperature,humidity and rainfall from September of 2015 to August of 2016 at the scenic spot of Emei mountain (Mt.Emei),the seasonal variation characteristics of concentration of anions and their relationship with meteorological factors were analyzed,and a prediction model for concentration of anions in the Mt.Emei was established.The results show that concentration of anions has an obvious seasonal variation.The highest values appear in autumn,followed by spring and summer,and the lowest one appears in winter.They all reach the SGFA (Standard Grades of Forestry Aeration) secondary standard.The AQI,temperature,rainfall are the key factors influencing the concentration of anions in the Mt.Emei.The reason of the highest concentration of anions appearing in autumn is due to the suitable temperature,abundant precipitation,wet air,large biomass,and so on.The falling leaves of the deciduous and mixed forest,reducing biomass,less rainfall and dry air are the reasons for the lowest concentration in winter.The prediction model based on the S model is as follows:y=exp (1.4552/x+7.5988).Its prediction accuracy is good.R-square of the three-dimensional model is excellent with 1.It can reflect the rules between the concentration of anions and the interpretation parameters in the Mt.Emei.The prediction model based on the S model can forecast the concentration of anions.The three-dimensional model builds an analysis-forecast system and is more suitable for forecasting the concentration of anions in the Mt.Emei.

Key words: Emei mountain scenic spot, Anion, Meteorological factors, Three-dimensional model, S model

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