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华东森林及高山背景区域CO2和CH4浓度变化特征
Variation Characteristics of CO2 and CH4 Concentration in Mountain Background Region of East China
投稿时间:2020-04-03  修订日期:2020-11-03
DOI:10.19316/j.issn.1002-6002.2021.03.10
中文关键词:  高山背景站  温室气体  CO2  CH4  变化特征
英文关键词:high mountain background site  greenhouse gases  carbon dioxide  methane  variation characteristic
基金项目:
作者单位
苏彬彬 福建省国家大气环境背景值武夷山监测站, 福建 武夷山 354302 
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中文摘要:
      对国家大气背景监测福建武夷山站2014—2018年的主要温室气体监测数据进行分析,探讨华东森林及高山背景区域大气中CO2和CH4浓度的变化特征。结果表明:华东森林及高山区域CO2背景浓度为414.1×10-6(摩尔分数,下同),5年间呈逐年上升趋势;CH4背景浓度为1 977×10-9,2014—2016年呈逐年上升趋势,2016—2018年保持稳定;两者均具有较明显的季节和月变化特征,CO2还具有较明显的日变化特征,但季节变化幅度、月平均浓度振幅和日变化幅度均较小,具有区域背景特征。
英文摘要:
      The main greenhouse gases monitoring data of the national atmospheric background monitoring station in Wuyishan of Fujian Province from 2014 to 2018 were measured to discuss the variation characteristics of CO2 and CH4 concentration in forest and mountain background region of East China. The results showed that the background concentration of CO2 was 414.1×10-6 (molar ratio,the same below),the annual average concentration of CO2 was obviously increasing in the past five years. The background concentration of CH4 was 1977×10-9. The annual average concentration of CH4 was obviously increasing from 2014 to 2016,and remained stable from 2016 to 2018. Both of them had obvious seasonal and monthly variation characteristics,and CO2 had obvious daily variation characteristics,but the seasonal variation amplitude,monthly variation amplitude and daily variation amplitude were small,which had regional background characteristics.
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