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一、前言在次生林经营工作中,各地曾从生态学或群落学的角度,提出一些划分次生林类型的方法。这对认识次生林发生发展规律和确定经营方向起了积极作用。但,由于次生林林型是树种组成和环境条件大致相同的许多森林地段的总和,它只能反映这部分林分的普遍性,而不能反映其中具体林分的特殊性,因而不便用于确定具体林分的经营措施。从便于经营活动出发,根据林学特点划分次生林的经营类型,是非常必要的。
I. Preface In the work of secondary forest management, various localities have put forward some methods for the classification of secondary forest types from the perspective of ecology or community. This has played an active role in understanding the laws governing the development of secondary forests and determining the direction of business. However, since the secondary forest is the sum of many forest lots with roughly the same tree species composition and environmental conditions, it can only reflect the universality of this part of the forest but can not reflect the particularity of the specific forest and therefore can not be used to determine the specific Forest management measures. Starting from the convenience of business activities, it is necessary to classify the management of secondary forests according to the characteristics of forestry.