國有林出租私人造林後衍生的林地農用問題，向為林地管理之一大困擾。然而在農林邊際土地採取混農林作業，為當前國際極力主張可提高生物多様性、增加碳吸存並裨益糧食安全的多赢策略。從減少林農可能遭受的環境風險危害並保障其生計的前提下，可從政策面向提出明確的法律保障、技術規範與足夠的經濟誘因，使混農林經營成為因應氣候變遷與極端環境事件的林地利用選項。
針對混農林業施行之政策可行性，本研究提出三項原則、三種策略，以及三個時程規劃。首先，發展混農林業須符合「保」、「民」、「多」三項原則，意即在保育的前提下，發展兼顧農民生計的經營模式，以混農林業方式經營現況已遭墾殖之林地，以求取多元化的生産/生態/生活效益。其次，需針對不同屬性的林農採取「補償收回」、「延遲收回」與「混農林使用」三種不同的輔導策略，以滿足不同對象的實際需求，減少山村社會衝擊。最後，本研究就混農林業之政策、法律與行政配套面向，擬訂短、中、長程規劃方向，以提供決策單位參考。

Transforming woodland into cultivated land has been one of important issues of leased national forestlands. Nevertheless, it has been recognized that applying agroforestry approach on marginal land could improve biodiversity, increase carbon sequestration and benefit food safety. For reducing the potential risk of environmental damage and securing landowners5 economic revenue, agroforestry could be considered as an option of land use to cope with climate change and extreme environmental events through the policy development of legal protection, technical regulations, and efficient economic incentives.
In this study, three principles, three strategies and three timetable schemes are suggested for agroforestry policy formulation. First, agroforestry shall meet three principles, conserving environment, developing management model with the consideration of farmers’ livelihood, and looking for multiple benefits regarding production, ecosystem services and quality of life. Next, the three strategies include compensated land return, postponed return, and agroforestry approach, are applied to forest landowners according to land management types. Finally, short-, medium- and long-term planning directions of agroforestry policy, legislation and administration are proposed to decision makers.