研究林分结构,不仅能从生物学的角度探明林分生长规律,而且是了解林分出材量(规格和数量)的有效途径。随着木材商品经济的发展,人们越来越需要了解林分出材状况。过去那种仅以林分平均因子,诸如平均年龄、平均高和平均胸径等,代表林分状况的做法已经不能满足木材商品化经营的要求。因此,需要在研究林分结构规律的基础 Studying the stand structure can not only find out the law of stand growth from the perspective of biology, but also an effective way to know the amount (size and quantity) of stand timber. With the development of timber commodity economy, more and more people need to understand the status of timber production. In the past, the practice of representing stands only based on average stand factors such as average age, average height and average diameter at breast height failed to meet the requirement of commercialization of timber. Therefore, we need to study the basis of the law of stand structure