Effects Of Different Land Use Types On Temperature Change In China During 1980～2010

In this paper,the temperature change on the Chinese thousand meteorological stations as the research object,1980 s,2010s of the two analysis of land use remote sensing and measurement,the average temperature data as the basis,using ArcGIS and MATLAB analysis tools,using OMR regression method and SPSS analysis,mainly on 1980~2010 China different land the influence of temperature,and analyzed the influence of several major types of temperature change,results show that:(1)Land use type 1980 s China within the region to unused land,cultivated land,grassland,forest,Chinese accounted for 96.823% of the total area,the unused land area is the largest,accounting for 36.922% of the total area of China,wetland area and the lowest Chinese accounted for 0.535% of the total area.2010 s Chinese regional land use types still in unused land,cultivated land,woodland,grassland,accounted for 97.088% of the total area of Chinese,the unused land area is the largest,accounting for 34.757% of the total area of China,wetland area and the lowest Chinese accounted for 0.553% of the total area.Compared with 1980 s,2010s cultivated land,forest land,construction land and wetland showed an increasing trend.Among them,the area of forest land increased,grassland,unused land and water area showed a decreasing trend.The conversion of the main land use types in China is concentrated in the fields of cultivated land,forest land and grassland.(2)Analysis of Chinese measurement,the average temperature variation increased,and showed significant warming trend,the measured average temperature of the changing seasons,four seasons showed a significant warming trend,and the tendency of the average temperature in winter was the biggest,followed by spring,autumn,summer minimum,the seasons of annual contributions: contributions fall on the annual maximum,followed by winter and summer,spring minimum contribution.In the analysis of the seasonal variation of the average temperature,except for a significant warming trend in winter,the rest showed a significant warming trend.In autumn,the average temperature tendency was the largest,followed by winter,spring,summer,and the contribution of the four seasons to the whole year: Summer contributed the most to the whole year,followed by autumn and spring.(3)OMR showed an extremely significant warming trend to the average temperature,the spring,summer and winter showed a warming trend in the four seasons,and showed a significant warming trend.In terms of tendency,spring is the largest,followed by winter,summer and autumn.The spatial variation in spring and winter is roughly the same,and the spatial variation in summer and autumn is the opposite.The contribution of the four seasons to the whole year,the largest contribution in the fall,followed by the spring and summer,the smallest contribution in winter.Effects of different land use types on the temperature change of the comprehensive analysis,the cultivated land plays a promoting role in the whole year,spring and winter temperature changes,in the north region of northeast region in summer and autumn played inhibition;woodland in change plays a promoting role in the spring temperature throughout the year,woodland in the summer of the southeast region to changes in temperature effect,but to promote the southwest region in the summer;temperature changes in annual and seasonal grass all play a role in promoting mixed use;in addition to play inhibitory effect in the southeast region of temperature change in the autumn,in other seasons all play a role in promoting.