Carbon Footprint Of Chinese Export Grains

Climate change has become a universal concern recently, and the carbon emissions derived from the international trade, accounted for about a quarter of the total carbon emission in China, has caused great attention with the development of the economy and expanding of international trade. Therefore, it is urgent to calculate the carbon emission of international trade.Meanwhile, the carbon emission, resulted from the activities of agriculture due to the increasing scale and improvement in mechanization levels, has become serious. As the greenhouse gas emission derived from the agriculture play a significant role in the total greenhouse gas emissions, with the percentage of 17%.Above all, it is high need to establish the standards of national accounts on the export commodities, in that case, it will convenient to calculate the carbon footprint of "high carbon agriculture goods". Consequently, the life cycle assessment (LCA) was used to calculate the carbon footprint of the export grain in China, and the main results were listed as follows:(1)The definition and literature review of carbon footprint were summarized, especially for the analytical method and assessment criterion. And thus the assessment criterion of PAS2050 was selected to analysis the carbon footprint of the grain according to the definition of carbon footprint and characteristics of product.(2) The carbon footprint of three representative grain-rice, wheat, and corn were calculated with the method of life cycle assessment (LCA), and furthermore the main stages of productive process of grain were analyzed.(3) The gross and structure of carbon footprint of the dominate export grain were calculated, using LCA, to further analysis the carbon transfer of the export grain.(4) The suggestion, focused on the low-carbon agriculture and barrier of the export grain, was proposed with the results of our research. Besides, scientific proof of the low carbon agriculture and environment diplomacy was established on the strength of the productive process of grain in china.