| With the development of science and technology, a large number of industrial products and scientific achievements have been applied to the agricultural production, which speeds up the development of the agriculture modernization. However, unreasonable using modern technology in the agricultural production, such as the excessive use of chemical fertilizers, pesticides, agricultural films and other products, not only caused the waste of resources, but also influences the normal operation of the agricultural ecological system. Therefore, it’s very important that reasonable evaluation and forecast of the present situation of the agroecosystem and guide its good development.In this paper, Chongqing agroecosystem was quantitatively analyzed to better evaluate its operating characteristics and the sustainable development of agriculture based on the theory of emergy analysis and ternary diagram by structuring index system for agroecosystem emergy estimation, and predicted its development direction. There are specific conclusions as follows:(a) Through analyzed the emergy input and output of the Chongqing agroecosystem, the planting level increases, the crop structure develops to diversification, and it starts to pay attention to bring more affordable utility for farmers of planting the economic crops. At the same time, it should make full use of Chongqing solar-thermal resources to develop the economic benefits of vegetables and fruit to improve local agricultural economy and farmers’income. Developing rationally the local resources and characteristic animal husbandry by taking the geographical advantage of this area.(b) Through analyzed the value evaluation index of Chongqing agroecosystem, Chongqing has large resources, and its supporting ability of system development is strong. Compared with the traditional agriculture, Chongqing agricultural production is gradually get rid of relying on natural resources, anti-disaster ability gradually strengthened, food production safety raised, but it still need increased economic feedback of the values of the investment.(c) Through the ternary diagram to Chongqing agroecosystem, development degree of Chongqing agroecosystem was continuously improve, agricultural development depends on the natural environment was reduced, gradually depends more on fertilizer, the seed and agricultural technology input. Chongqing agroecosystem gradually develop from the traditional agriculture to modem agriculture transition and it more and more depended on industrialization, which is the reflection of the economic development level in agricultural production.Through the above analysis, this paper puts forward relevant measures:adjust reasonably input structure, reduce un-update the investment proportion of the environmental resources and increase economic feedback value; Fully exploit the potential of local resources to improve the utilization efficiency; Make comprehensive, comprehensive and sustainable measures to improve the local natural environment; Reasonable use of external resources, properly coordinate the relationship of environment bearing, economic feedback and sustainable development. |