Emergy analysis of the farming system in the semi-arid area where farming and animal husbandry crisscross — With Wuchuan county as an example |
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DOI:10.7606/j.issn.1000-7601.2005.01.31 |
Key Words: region with farming and animal husbandry overlapping farming system emergy value |
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Abstract: |
Using the theory and method of emergy analysis, the paper analyzes environmental basis and economic features of the farming system practiced in Wuchuan county of Inner Mongolia. The results make it clear that the emergy input of nonrenewable resources and chemical fertilizers accounts for 84.2% of the total emergy input in the farming system of Wuchuan county and thus the farming system belongs to a typical emergy-consuming farming system. Because of its high costs of agro-products as well as overuse of environmental resources, the agro-products of the farming system do not have competitive edge in domestic and international markets under the same circumstances. Thereupon, improving environmental input and optimizing emergy use structure can improve the capacity of the farming system. |