Influencing Natural Forest Disturbance through Timber Harvesting: Tradeoffs among Disturbance Processes, Forest Values, and Timber Condition
研究将自然干扰机制纳入森林管理动态模型,评估昆虫爆发、风暴和野火三种干扰前后为减轻干扰而需的活木和救伐补贴,发现森林死亡率并非衡量管理响应的好指标。
Governments provide technical, political, and financial incentives to encourage timber harvesting for the purpose of mitigating natural forest disturbance. To provide guidance concerning these incentives, this paper integrates a natural disturbance regime into a dynamic model of forest management. The model is used to estimate live and salvage timber harvest subsidies needed to incorporate disturbance‐mitigating benefits before and after three types of natural disturbance: insect outbreak, storm, and wildfire. While not specific to a particular country or state, results indicate that the degree of forest mortality may be a poor metric for gauging management response due to various degrees of endogeneity across different types of disturbance events. The live timber harvesting subsidy is substantial but quickly declines after a disturbance event. In contrast, salvage subsidies increase following a disturbance event but remain modest.