Analysis On The Evolution And Trend Of Agricultural Green GDP In Hunan Province Based On Emergy

To construct two - oriented society, to build a green Hunan" is the specific measure of Hunan to achieve the central government’s goal on economic transformation, and has become the consensus and target of people in Hunan, this action and consensus requires a green GDP which can reflect the level of sustainable development indicators to evaluate and guide.The paper proposed the concept of Emergy Green GDP and applied the Emergy Analysis Theory and its method. It first based on various emergy inputs and outputs data of Hunan Province’s agriculture system in 2013 and checked the system’s Emergy Green GDP on the basis of calculating the emergy-money value of unrenewable environmental resources and unrenewable industrial subsidiary energy consumed by the system. The Emergy Green GDP of the agricultural Eco-system in Hunan Province was 1.97E+11 billion Yuan, occupying 66% in traditional GDP (296 billion Yuan). Besides, the Emergy Green GDP on agriculture in 14 cities and prefectures of the Province in the same year has also been checked; their regional differences have been analyzed. From the perspective of total amount of emergy Green GDP, there was no difference between the traditional GDP ranking and the emergy Green GDP ranking. They were ranked as follows:the Dongting Lake Plain Area in Northern Hunan, hilly and mountainous areas in Southern Hunan, Changsha-Zhuzhou-Xiangtan cluster, hilly areas and basins in Central Hunan and Wulingyuan Mountain area in Western Hunan. However, these five areas had great changes as for the ranking of proportion of emergy Green GDP in traditional GDP. The ranking was as follows:Wulingyuan Mountain area in Western Hunan, hilly and mountainous areas in Southern Hunan, the Dongting Lake Plain Area in Northern Hunan, the hilly areas and basins in Central Hunan and Changsha-Zhuzhou-Xiangtan cluster. Wulingyuan Mountain area which accounts the largest proportion had only 75.88% on the ratio. Finally, by collecting the agricultural system’s input and output data between 2000 and 2013 in Hunan Province, the paper has analyzed the development and trend of the emergy Green GDP in the system. Since 2000, traditional GDP and emergy Green GDP both have witnessed continued increase in gross. However, emergy Green GDP’s growth rate was slightly lower than traditional GDP’s and it always accounted a relative low proportion.In summary, the development of agricultural economy in Hunan has always been at great cost of resources and environment. Lowering resource and environmental costs and improving agricultural Eco-efficiency as much as possible are what needed to be done in Hunan’s future agricultural development.