Analysis And Prediction Of Spatial-temporal Evolution Characteristics Of CO₂ Concentration In Huaihai Economic Zone Based On GlobeLand30

In recent years,the gradual increase in the concentration of greenhouse gases has brought about many serious environmental problems and the phenomenon of global warming has become increasingly apparent.As one of the main gases in greenhouse gases,CO₂ has the highest content and rapid growth rate.Therefore,an in-depth analysis of the trends and patterns of changes in carbon dioxide concentration will provide a solid research basis for alleviating global warming and national carbon reduction efforts.This article uses the CO₂ concentration data of AIRS L3 V5 series products from2003 to 2010,and its data accuracy is 2.5°×2°?longitude×latitude?.Therefore,this paper first performs preprocessing operations such as interpolation and resolution reconstruction on AIRS CO₂ data.The precision is improved to 0.5°×0.5°?longitude×latitude?.Then,the interannual,quarterly,monthly,and regional variations of CO₂ concentration in the Huaihai Economic Zone are analyzed from two dimensions of time and space,and three types of data are used:Parman,Kendall,and Spearman.Correlation coefficient,to explore its correlation with surface cover factors,meteorological factors,and economic factors,and analyze the impact mechanism;and on this basis to build a linear regression analysis model,RBF neural network,and GM?1,1?model The prediction of CO₂ concentration in the Huaihai Economic Zone from2018 to 2025 will provide an important basis for further exploring the temporal and spatial distribution of CO₂ concentration and understanding the future development trend.The research results show that the CO₂ concentration in the Huaihai Economic Zone gradually increased from 2003 to 2010,especially in the later period,the increase rate has increased and has stabilized,showing the characteristics of seasonal changes in high autumn and winter and low in spring and summer.From the perspective of spatial distribution,the CO₂ concentration in the Huaihai Economic Zone is characterized by high-low in the east,low in the south,high in the south,and high in the north.The high-value areas are concentrated in the Weibei and Lunan areas.This may be due to the dense population and the mining of mineral resources in the area.Caused by a large amount of reasons.In studying the correlation between CO₂ concentration and land cover data,it was found that the impact of cultivated land,artificial land surface,forest,and grassland on CO₂ concentration was relatively significant,and different types had different mechanisms of influence.On the other hand,the effect of surface cover factors on CO₂ concentration changes with seasonal changes.The reason may be that human production activities are often affected by the seasons,such as photosynthesis of plants,microbial decomposition of soil,and urban heating.Other lifestyle habits are closely related to the season.In addition,meteorological factors such as precipitation,temperature,sunshine,and economic factors,such as per capita GDP,total value of the first,second,and tertiary industries,also have a certain influence on the concentration of CO₂ in the atmosphere,and behave differently.Influence Mechanism.Finally,the prediction results of CO₂concentration in the Huaihai Economic Zone from 2018 to 2025 indicate that in the next 8 years,the city's CO₂ concentration will continue to increase,and the increase will be relatively rapid.The CO₂ concentration in each city will reach 420 ppm or more,so the city Carbon reduction work is imminent.