A new calculation method was presented to deal with emergy balance between(input) and output,and accordingly two new emergy indices,named Local Effect Ratio(LER) and Emergy Benefit Ratio(EBR) were put forward.

• 提出能值投入产出平衡计算的算法和能值效益率(EBR)、能值本地影响率(LCR)等一系列生态经济评价指标。