| During the 30 years of reforming and opening up, our country has made the world economic growth, but there is the excessive waste of resources, serious destruction of ecological environment. Agriculture is the foundation of the national economy, people’s livelihood and economic development. Agricultural ecological efficiency is one of the important indicators to measure a region agricultural productivity. In order to determine whether a regional agricultural ecological efficiency effectively, we should analysis the long-term relationship between resources and agriculture ecosystem and agricultural economic growth, environmental pollution for quantitative factors analysis that influence efficiency of agricultural ecological research.Based on the efficiency of ecological agriculture in Jiang xi province, this paper respectively expounds the connotation of agricultural ecosystem, sustainable development and related development theory. First of all, through summarizing the research methods of agricultural ecosystem, we choose DEA(data envelopment analysis) and VAR(vector auto-regression) approach to empirical analysis in this paper. Through the introduction of the natural resources of the whole agricultural ecosystem in Jiangxi province, the status quo of economic development, environmental pollution, based on the foundation with the actual conditions,this paper uses scientific method of index selection, resources, environment and economic development is established evaluation index system of ecological efficiency of agriculture. Secondly, by using DEA(data envelopment analysis) makes an empirical analysis of agricultural ecological efficiency indicators, including11 cities in Jiang xi province comprehensive technical efficiency, pure technical efficiency and scale efficiency. The results showed that the overall level of agricultural ecological efficiency in the secondary development in Jiang xi province, Nan Chang, Jing De Zhen, at places such as in the efficient production frontier, Shang Rao, Gan Zhou, Ji an regions such as the efficiency of agricultural ecological value is low. Again, this paper uses the VAR model of the main factors that influence efficiency of ecological agriculture in Jiang xi province for dynamic econometric analysis. so we found that here is a long-term stable relationship between the output value of agriculture and rural fixed asset investment, financial support agriculture. Finally, according to the result of empirical analysis, this paper found some problems in the process of agricultural development in Jiang xi province, and puts forward improvement Suggestions according to the corresponding problems. |
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