一、引言如何确定林场一年一度的投资方案,一直是我国林业局、林场的决策者面临的重要课题,尤其在经济效益受到高度重视的今天,这一问题比以往任何时候都更加受到人们的注意。然而,在一个复杂的林业生产系统中确定一套最优的投资方案却非常艰难。它需要决策 I. INTRODUCTION How to determine the annual investment plan of forest farms has always been an important issue facing decision-makers in our country’s forestry bureaus and forest farms. Especially in the day when economic benefits are highly regarded, this issue is more affected by people’s note. However, it is tough to identify the optimal investment package in a complex forestry system. It needs decision