Emergy-based Assessment of Ecological-Economic System of the Urban Ecological Leisure Agriculture
|School||Gansu Agricultural University|
|Keywords||Urban Leisure Agriculture Ecological and economic systems Emergy analysis Lanzhou City|
The leisure agriculture began to rise early 1980s, the primary form of agriculture in China's rural areas, farmhouse, rural tourism, leisure has been fully developed. With the acceleration of the process of integration of urban and rural, leisure agriculture begins to come out of the village, approached the peri-urban areas or the inner city, urban the leisure agriculture also became one of the major industries of major urban development, various Agritourism Development Zone, modern leisure agriculture an advanced form of leisure agriculture development of the industrial park, and so have mushroomed in the developed regions. Government and academia also began to focus on the development of this emerging industry trend, many scholars have carried out an in-depth study of leisure agriculture, but also less of leisure agriculture from the perspective of agricultural eco-economic system and urban ecosystems. This article is based on agricultural eco-economic system theory, the theory of urban ecosystem and value theory, quantitative studies of urban leisure agriculture ecological and economic functions. First, the use of agro-ecological and economic systems theory and modern urban ecosystem theory constructed urban leisure agricultural eco-economic system to define the boundary of the system, the connotation and the elements, and analysis of system structure, the proposed urban leisure agricultural eco-economic system is a control loop foundation ring, value-added ring and support for components tricyclic structure. Secondly, the use of emergy theory built from the five aspects of the system of ecological and economic benefits of the efficiency of system structure, system function, the system of ecological benefits, as well as system comprehensive evaluation emergy index system for the evaluation of urban leisure agriculture ecological and economic system, for the follow-up case studies lay the theoretical basis. Finally, based on emergy evaluation system of urban leisure agriculture has been constructed out of eco-economic system, leisure agriculture in Lanzhou City case empirical analysis, analysis results show that: ① leisure agriculture development in Lanzhou City, small-scale, scattered layout, the core weak competitiveness, economic efficiency is not high, the ecological benefits were not evident, did not play due ecological functions; ② Lanzhou City, the development of leisure agriculture is still based on the traditional basis of agriculture, leisure agriculture development efforts and input is not enough to be further development; ③ of Lanzhou City leisure agriculture development status is not optimistic, but the Lanzhou City still has a variety of resources for the development of leisure agriculture conditions for further development of a larger space. The article last value analysis based on the results of the suggestions to promote the development of leisure agriculture in Lanzhou City.