Analysis for structure and function of agro-ecosystem is very important for improving people＇s idea to protect agricultural environment and resource, and for agro-ecosystem research all over the word. With special advantage, energy analysis can evaluate complex ecosystem including natural, economy and society as a whole. In case of Shanxi agro-ecosystem, this paper expatiates on concept and theory of the energy analysis. The results showed that Shanxi agro-ecosystem still stayed in traditional agriculture period in 2005, which mainly depended ...
