大气中二氧化碳浓度对杭州气温的影响

Influence of CO _2 content in atmosphere on air temperature in Hangzhou

为了探索大气中二氧化碳 (CO2 )质量分数不断增加的原因 ,以及大气中CO2 质量分数增加对气温的影响程度 ,采用回归分析方法 ,分析了世界人口增长与大气中CO2 质量分数之间的关系和CO2 质量分数增加与杭州冬季、夏季及全年气温的关系。结果表明 ,世界人口激增是导致大气中CO2 质量分数增加的根本原因 ,其相关系数r =0 9963,两者相关极为显著。CO2 质量分数增加对杭州的冬季增温效应显著 ,气温越低 ,增温效应越明显 ,1月平均气温、 1月平均最低气温和年极端最低气温与CO2 质量分数的相关系数分别为 0 4 61 1 ,0 4 71 6和 0 5760 ,都超过信度α =0 0 1的显著水平 ,而对夏季增温效应不明显。但就全年来说 ,影响仍为显著 ,CO2 质量分数与年平均气温的相关系数为 0 4 574。因此 ,控制人口增长特别是大城市人口增长对减少CO2 的排放源和排放量是十分重要的。CO2 质量分数对气温的影响程度是随不同地带和不同季节而变化的。图 1表 3参

Regression analysis is used to find understand the reason of CO 2 content increasing and its effect on temperature .The great increasing of world population has been proved to be the essential cause inducing the growing of CO 2 content in atmosphere.The increase of CO 2 content makes an apparent rising of winter air temperature of Hangzhou.The lower the air temperature is,the more apparently the air temperature rising.CO 2 content is obviously related to average air temperature in January,the lowest air temperature in January and the extreme low air temperature of whole year.Correlation coefficients are respective 0 461 1, 0 471 6 and 0 576 0.The increase of CO 2 content dose not make the same effect on summer air temperature as on winters but on the average air temperature of the whole year(r=0 457 4).It is very important that population control,especially the control of the large cities population,is a good way to control theorigin and amount of CO 2 discharging.Effect of CO 2 content on temperature varies from different zones and seasons.