Analyses On The Emergy Of Planting Industry In Henan Province

Emergy analysis theory is the new achievement of the development of the system of ecology and ecological economics, ecological system overcomes the traditional analysis method (emergy analysis method), to compare different kinds, not unified energy is converted into energy, quantitative analysis to the structure and function of ecological system, the evaluation and analysis of its sustainable development ability, for the ecosystem sustainable development has opened up a new research approach.Based on the review at home and abroad about the Energy analysis of Planting industry ecosystem, the paper uses the example of Henan province, by collecting planting related statistical data of Henan province. the ecosystem emergy analysis model and time series analysis method are combined and applied to screen the index system of the Planting ecosystem in Henan province and evaluate the value refers to the various indicators in system, finally discusses the planting ecosystem sustainable development of Henan province, and puts forward related Suggestions. The specific research work and results are as follows:(1)By the ecosystem emergy analysis model, established in Henan province in 2006-2011 table of planting ecosystem emergy, the system is analyzed, in Henan province into farming ecological system in details. Henan province, in making farming ecological system in order to 1.507 E+22 sej,1.537+22 sej,1.533 e+22 sej, 15.17 e+22 sej,1.60 e+22 sej,1.57 e+22 sej, most of which cannot be updated industrial auxiliary emergy, fertilizers accounted for almost every year to nearly 80%, according to the related knowledge to judge the local optimized fertilization fertilizer utilization rate is low, to some extent, become the main cause of planting costs increase.(2)Setting up in Henan province in 2006-2011 crop ecosystem emergy output table. Through the model available from 2006 to 2011 in Henan province farming ecosystem emergy output, in turn,1.72 E+22 sej,1.87 E+22 sej,1.90 e+22 sej,1.91 e+22 sej,1.938+22 sej,2.02 E+22 sej, crops can output value increased year by year, to show that the crop yield in Henan province increased year by year, production is steadily increasing.(3)To build the index system of Henan province farming ecological system in the system from 2006 to 2011 in Henan province can each index value flow conditions. Including organic auxiliary energy ratio dropped year by year(25.8%～21.3%), industrial auxiliary energy ratio increased year by year (53.5%～56.6%), indicating that planting ecosystem in Henan province development model is tend to be modern. Per capita energy consumption (1.60E+14～1.70E+14), energy density (9.02E+11～ 9.58E+11) showed a rising trend year by year, it shows that the development of plant industry in Henan province level is higher, higher level status, people’s living standard and life quality improve faster. To value investment rate (3.83～3.52) and can purchase rate (79.3%～77.9%) showed a trend of decline, indicates that in the development process of Henan province farming ignores the economic benefit, its development based on high investment. Environmental load rate decreased from 3.82 in 2006 to 3.76 in 2011, in reducing environment load rate, planting ecological economic system production pressure on the natural environment is not very big.(4)Discusses the strategies for the sustainable development of planting ecosystem in Henan province. By emergy index system can get the sustainable development of the planting ecosystem in Henan province can value index showed a trend of rising year by year, but the index is far less than 1 (0.370～0.439), showed that planting ecosystem in Henan province belong to high consumption of ecosystem depletion type, can cast structure should be adjusted to optimize system, make full use of environmental resources, increasing investment in science and technology, improve the production efficiency of planting industry and product competition ability, so as to promote the sustainable development of the farming ecological economic system of Henan province.(5)Summarize the main problems of planting ecosystem in Henan province at present, including farmland productivity improvement, increasing population pressure, planting industry structure is unreasonable, ecosystem environment load big, needs to improve a complete system of the agricultural science, etc. And puts forward the countermeasures to solve the problem:the corresponding to promote land consolidation and soil fertilizer, to control population growth, improve the quality of life, optimization of crop planting structure, to build a good ecological environment, build form a complete set of agricultural science and technology system, etc.