Analysis of the use of energy in agriculture—Approaches and problems

摘要: Abstract Energy analysis of agricultural systems has failed to live up the expectations its early proponents. A number important theoretical and methodological issues remain unresolved including definition system boundary, treatment labour, interpretation output from energy analysis. These problems may be attributed, at least in part, confusions over role systems. If technique is develop beyond mere taxonomy then a more coherent framework for needs developed. This paper describes simple model use agriculture which used examine these controversies.