林火预防与扑救投资的成本效益分析

针对某一林区，确定其林木管理目标，以及为达到此目标对林火监测与扑救系统的要求，从而确定森林防火的资金投入。分析了加大森林防火投入前后森林火灾损失与扑求费用的变化。

Investment Analysis about Benefit and Cost of Forest Fire Prevention and Suppression for a Special Area

To a specific forest area, the management object is provided for the forest protection, and the corresponding fire|detection and fire|extinguished system should be constructed, so the investment is evaluated for protecting the forest. the changes, those of fire losing and fire|extinguished expense before and after the investment, are estimated. Once the forest protection system is established, only invested in at the initial time, it can serve for many years. To compare with the forest|protecting benefit, the initial investment is shared equally into every year of its lifetine. On the othe hand, the total forest|protecting benefit during its lifetime is turned into current value, which work as the benchmark of comparison. Subsequently, the relation of the fire prevention cost and forest|protecting benefit is studied, and ratio investment to return is calculated.