Investment Analysis Of Agricultural Economic System In Jiangxi Province In 2011-2015 Years Based On Emergy Theoryby

This research studies the emergy input and output of agroecological system in Jiangxi province by using emergy theory and the emergy analysis method,making clear of their structure and time variation dynamic and analysis of the history track and trend of development of the system emergy input and output succession.An objective evaluation of the sustainable development condition of this system,we can provide the corresponding countermeasure and the suggestion for government decision on the basis of scientific method.The result of this study are summarized as belows.(1)investment in Jiangxi agricultural emergy in renewable environmental emergy accounted for about 34.01%-48.00%,non renewable resource accounted for 3.07%?4.06%,industrial auxiliary energy accounted for 10.22%?12.61%,the input of organic energy accounted for 38.71%?49.30%of Jiangxi Province,the agricultural eco economic system annually by the system input into energy(energy environment resources and industrial auxiliary)not always input values of 1/2,organic system itself provides the value of more than 1/2.The results show that most of the agricultural system in Jiangxi province is in the state of self maintaining production,which has little dependence on the outside world,and the system is closed and conservative.(2)there are 3 unreasonable places in the energy input structure,one is the purchase value,the industry can not match the organic energy and energy,the former accounted for only the purchase value of 10%,which is as high as 90%.Jiangxi agricultural science and technology system means less investment,environmental resources are not well utilized,the economic system is not a high degree of development,organic energy input is too large,the system closed,less communication with the outside world,the lack of vitality.Two is the industrial auxiliary energy value of the internal structure of the imbalance,the chemical fertilizer can put too much value,the rest of the industrial auxiliary energy input is too small,the system of crop production is still dependent on fertilizer inputs to maintain.Three is the internal structure of organic energy value is not reasonable,the labor energy value of more than 3/4,the manpower is still an important driving force of the system,yet to get rid of labor intensive closed agricultural production pattern.(3)the main reason for the relationship between the high emergy input and the GDP in the lower position of Jiangxi is that the emergy input structure is irrational.The first to cut labor emergy investment,rural labor should be transferred to other industries,improve the new technology of energy inputs,Another important reason for the slow pace of development of Jiangxi agricultural production system is irrational industrial structure,should adjust the industrial structure,in addition to pay attention to the existing brand and great advantages of production,development of new products to increase relatively less,the cost and profit of higher value efforts.In addition,agricultural products are mostly primary products to form into the market,the appreciation of two times less,farmers do not get good benefits,should vigorously widen and lengthen the agricultural products deep processing industry chain,the value of agricultural products,this can not only solve the transfer of rural labor,but also benefit from farmers,improve farmers' enthusiasm the system operation and always maintain a high level of health.(4)develop organic fertilizer,reduce fertilizer inputs,take appropriate biological measures,engineering measures and specific cultivation measures to control soil erosion,strengthen the construction of grassroots agricultural technology extension system,agricultural professional technical personnel training,improve the quality of farmers.To speed up the innovation of science and technology and the promotion of biotechnology,breeding,cultivation,water-saving income,organic agricultural products,pest control,the field of disaster prevention and mitigation,these measures can ensure Jiangxi Province agricultural eco economic system development.