Carbon Emissions From The Useof And Agricultural Inputs Based Mainly Agricultural Land In Hunan

The world’s climate anomalies caused carbon emissions to the attention of the academic field, and as the carrier of the agricultural land use carbon emissions as the main human activity, became one of the main cause of global warming, China is the country of the world’s largest agricultural production, agricultural production caused by carbon emissions ranked first in the world, the proportion of China’s agricultural base and growing faster, if not immediately take countermeasures and measures to reduce emissions, caused by agriculture related carbon emissions will continue to increase.As China’s traditional agricultural province of hunan province, has an important strategic position in the national economic development.Taking hunan province as an example, in view of the chemical fertilizers, pesticides, agricultural films and farm diesel aspects of carbon source, the analysis of the main agricultural materials into carbon emissions and the decoupling relationship between the agricultural economic development, the research of using the kuznets curve (EKC), to study China’s carbon emissions and the inverted U relationship between economic growth, providing theoretical basis for research, using decoupling principle as a basic principle of the method of using decoupling to describe the relationship between economic growth and environmental degradation, to measure the economic development and energy consumption and environmental degradation material input decoupling between state, reference Tapio decoupling model, namely carbon elastic decoupling principle, to study the change of the economic development of the amplitude ratio of carbon dioxide emissions of variations, mapping out the sensitive degree of carbon dioxide relative to economic changes and eventually use LYQ analysis framework, from a specific Angle, Tapio decoupling model research on carbon emissions and economic growth between the input Angle, energy consumption, output and other intermediate variable between elasticity of decoupling between two changes the numerical calculation.Tapio model from hunan province and14major agricultural materials input, state, and city of decoupling relationship between carbon emissions and agricultural economic growth analysis, the main agricultural materials in the ratio of carbon emissions and agricultural output variables decoupling elasticity, decoupling model was constructed.Needed in the research of the related data from2001to2001years in hunan province rural statistical yearbook, the relevant data to select the oak ridge national laboratory, nanjing agricultural university, institute of agricultural resources and ecological environment (IREEA), the UN’s intergovernmental panel on climate change (IPCC).Eventually reach2000-2011, chemical fertilizers, pesticides, agricultural films, diesel agricultural materials into carbon emissions are:2000,6.9931million t,7.0017million t,2001,2002,6.9733million t,7.0641million t,2003,2004,7.6145million t,7.8152million t,2005,2006,7.9614million t,8.074million t,2007,8.1908million t,2008,2009,8.4021million t,8.5771million t,2010, annual average7.8815million t,8.711million t,2011of which chemical fertilizer by an average of6.7613million t, accounted for86.89%, pesticide annual average of521100t, accounted for6.70%, agricultural film,311400t, accounted for4.00%,187800t diesel, accounting for2.41%.Among them, the annual average carbon591300t of changsha, accounted for7.10%of hunan province, zhuzhou city,374000t, accounted for4.49%, xiangtan city,404100t, accounted for4.85%, hengyang854400t, accounted for10.26%, shaoyang667700t, accounted for8.02%, yueyang984900t, accounted for11.83%, changde,1.2071million t, accounted for14.50%, zhangjiajie170600t, accounted for2.05%, yiyang,85.31t, accounted for10.25%,570500t, chenzhou is occupied6.85%, yongzhou,758000t, accounted for9.10%, which is355200t, accounted for4.27%, loudi,313200t, accounted for3.76%, xiangxi autonomous prefecture,221200t, accounting for2.66%.Through Tapio decoupling model measuring out the conclusion is:(1)2001-2002, hunan agricultural capital investment between carbon emissions and gross agricultural production level of decoupling for strong decoupling, agricultural economy, at the same time in the growth of carbon emissions in decline;From2003to2011, our province level of decoupling for weak decoupling, the agricultural economy and carbon emissions in the growth state, but the agricultural economy growing faster than emissions growth.(2) based on14, city, state decoupling relationship research,14in hunan province, city, state is divided into four grades area, changsha, yiyang and yueyang, changde, hengyang for carbon emissions most pressure area, zhuzhou and xiangtan as carbon intensity per unit area heavier area, yongzhou, chenzhou, shaoyang pressure lighter areas to carbon, zhangjiajie, xiangxi autonomous prefecture, which is, loudi as carbon pressure the lightest area.