Temporal And Spatial Distribution Of CO 2 And Its Influencing Factors In Chinese Atmosphere From 2003 To

Environmental problem is becoming more and more serious since the industrial revolution and had raised people’s thinking and reflection. The rapid increase of CO2 concentration have brought a series of serious climate problems:the increasing global temperature, rising sea levels, the melting glaciers in south polar, rising sea level, El nino, heavy rains, drought, and so on, have brought great harm to people. To control the growth of greenhouse gases such as CO2 becomes one of the most important international issues at present. In the background of the greenhouse gases driving global warming,China as the world’s largest emitter of greenhouse gases, environmental pollution and the pressure of public opinion makes Chinese situation is serious and urgent. Therefore, the temporal and spatial distribution characteristics of CO2 concentration should be accurate understand which provide an important basis to formulate scientific and reasonable measure to reduce emission.The development of satellite remote sensing technology which provide a large scale mean to monitor atmospheric CO2.The SCIAMACHY remote sensing data to detect near surface CO2 concentration is of value and have became one of the first choice for CO2 scientific research.By using SCIAMACHY CO2 concentration data from 2003 to 2009 in China, municipal administrative region CO2 concentration time and space distribution were analyzed and the CO2 concentration and NDVI, temperature, the relationship between GDP, population, energy consumption were explored. The main research results are:1. The CO2 concentration distribution is uneven over the land of China. Overall, the Chinese CO2 concentration distribution in the north latitude 30°to 40°; regional differences of CO2 concentration within China is relatively high, the central east area is high, while southwest and northeast parts is low; The average density of three economic zones is higher, the beijing-tianjin-hebei urban agglomeration> the Yangtze river delta economic zone> in the pearl river delta economic zone.2.The Chinese CO2 concentration increased year by year, average annual growth is about 1.74 ppm,382.73 ppm in 7 years from 2003 to 2009. The national CO2 concentration grows slowly from 2003 to 2005, the average annual growth is about 1.24 ppm. After 2005, The CO2 column concentration increased rapidly, the average annual growth is about 2 ppm from 2006 to 2009.3. CO2 concentration showed a trend of increase in Chinese administrative region in 2003-2009, but CO2 concentration distribution is different in every year; Among of them, the CO2 concentration in Beijing is the highest from 2003 to 2009, about 3-8ppm. Shanghai grow fastest compared with others, the rate of average annual growth is 0.69%.4.The variation of CO2 concentration is fluctuation, high value generally appears in April or May, and low value generally appears in July or August.5.From the point of the seasonal change of CO2 concentration, spring> winter> autumn> summer; CO2 concentration difference China’s in administrative regions between winter and spring seasons is greater than the summer and fall in different seasons. The national average of CO2 concentration and GDP, energy consumption, population density are showing a strong significant positive correlation from 2003 to 2009, among which GDP changes on the impact of CO2 concentration increase is the biggest of the three factors.6.The Energy comsumption and the increase of CO2 concentration are showing a strong significant positive correlation from 2003 to 2009, shanghai is 0.96,which is lower than the average in China. There is significant positive correlation, significant negative correlation, and no significant correlation between China’s administrative region population density and CO2 concentration. GDP and CO2 concentration exists significant correlation in administrative regions from 2003 to 2009. The correlation coefficient of GDP and CO2 concentration in each administrative region is different, the minimum is 0.92 in Beijing, Shanghai. The correlation analysis of NDVI and CO2 concentration in each administrative region shows that:there is no significant correlation relationship between NDVI and CO2 concentration in most provinces from 2003 to 2009 except yunnan and shaanxi, whose correlation coefficient is 0.81 and 0.77. Through affect the growth of vegetation and human activities, temperature influence the CO2 concentration. There has significant correlation between temperature and CO2 concentration, temperature and CO2 concentration in the winter and spring has negative correlation, while summer and fall has positive correlation.