林火管理经济学的研究与探讨——单一可变防火要素的最佳投入

Investigation and Exploration on the Forest Fire Management Economics ——Optimum Investment for Single Factor of Fire Protection

用经济学的观点分析了其它防火要素的投入量不变，仅改变某种可变防火要素的投入时，减灾效益Ｅ、边际减灾效益ＥＭ、平均减灾效益Ｅ／Ｆｉ与单一可变防火要素Ｆｉ的关系。

The optimum investment for single factor of fire protection is analyzed from the economical point of view, when the other factors are invariable. The relationship between efficiency of disaster reduction (EDR),marginal EDR and average EDR is discussed. The method and criterion of deciding optimum investment are provided.