Study On Carbon Emission From Land Use And Construction Land Expansion In Gaoling District

Nowadays,greenhouse effect which causes the anomal global climate has become a major challenge for the whole earth.Relevant studies have pointed out;among them,construction land,as a land use type carrying high energy consumption and high carbon emissions of human activities,its expansion not only provides resource support,but also changes the regional land use structure.Thus,it is obliged to study the carbon discharge influences of land use and the relevance among reconstruction land extend and carbon discharge.Spatial autocorrelation analysis,decoupling analysis,Kuznets curve inspection,Kaya identity theory,statistical methods and other means;secondly,relationship between each carbon emission refinement,it is divided into three parts.This paper analyzes the magnitude and dedication Then unhook connections with construction land and carbon discharges is studied,and the Kuznets bight is tested.Final forecast climax and peak time of carbon emission.The research conclusions are belows:(1)weakening the carbon sink capacity and increasing the carbon source capacity in Gaoling district.(2)Construction land are decoupling weakly,and develop towards the ideal trend,but reach the peak in the natural growth trend is hard.(3)There is a significant quadratic curve relationship between the proportion of construction,which is of inverted U type and the inflection point value is 36.5%.There is no significant curve relationship between urban industrial and mining land in secondary land for construction.There is a quadratic curve relationship between the proportion of land for transportation and the proportion of rural residents,which are the "positive U" and "inverted U" curves with critical values of 7% and 37%.(4)According to the economic development level of Gaoling District,it will not appear before 2040,but will appear around 2042.