解放以来,我国各省(区)市先后完成了几次森林资源清查工作,为国家各部门制订经济、科技发展方针、规划、计划提供了可靠的基础资料。这些资料有无可比性和规律性?怎样利用这些数据反推或预测资源变化?以便为林业发展作决策?这是一件复杂而又重要的工作。几次资源调查,新处历史阶段不同,技 Since the liberation, various provinces, autonomous regions and municipalities in China have successively completed a number of forest resource inventory work and provided reliable basic materials for various departments of the country in formulating economic, scientific and technological development guidelines, plans and plans. How comparable and regular are these data? How can we use these data to reverse or predict resource changes in order to make decisions for forestry development? This is a complicated and important task. Several resource surveys, the new history of different stages of technology