Analysis Of China’s Sustainable Development Path Based On Emergy Theory

The constant innovation of science and technology in various fields has indeed promoted the rapid development of economy and society to a certain extent,but the large consumption of resources has also put great pressure on the natural environment system.A series of ecological crises such as resource depletion,environmental pollution and climate change have made achieving sustainable development a priority for all countries.Emergy analysis,as a sustainable assessment method that can convert energy flow,material flow,and currency flow into a unified scale,has been widely used in various fields at home and abroad.However,there are few overall assessments and predictions at the national level.In addition,the development situation of each province in China is different,and it is difficult to directly compare and analyze them.Therefore,based on Emergy analysis combined with scenario simulation,this article comprehensively evaluates the changes in China’s sustainable development from 2000 to 2016,and provides macro data support for the formulation of related policies in the future.Based on the differences in energy input,economic development level and industrial structure,group discussions were held in each province to comprehensively and synthetically compare and analyze the key factors affecting the sustainability of each province and China.Reasonably design different development models to predict China’s future level of sustainable development and provide predictive information for coordinated economic and ecological development in the future.The results show that under the high-intensity economic development,the proportion of primary energy input keeps rising,which makes the Environmental Load Rate rise to 3.13.At the same time,due to the increase in imported emergy,the Emergy Yield Rate has relatively decreased,and the sustainability index has dropped to 5.40.Although in recent years China has been actively adjusting the industrial structure and increasing environmental governance,the rising demand for resources has added a lot of extra load to the already problematic ecological environment.To avoid excessive investment and waste of industrial products,it is urgent to increase the contribution rate of renewable emergy.Further group discussions show that the changes in the Emergy indicators of most provinces are related to the output value contribution rate of the three industries.Northwest inland areas have too low imported input,and economic development is too dependent on local resources.The development model of "high energy consumption and low output" has lowered the level of China’s sustainable development to a certain extent.Beijing,Shanghai and other economic and trade centers have excessive ecological pressures,and their development intensity should be appropriately slowed down to ease the environmental load.Based on group discussions,using renewable products,non-renewable products,and primary energy input as influencing variables,setting up different scenarios and plans based on national planning and related field research,and analyzing China’s future development trends.The results show that under the national plan,in the long run,relatively low economic growth can steadily achieve ecological-economic sustainable development.