天然常绿阔叶林(下称阔叶林)是省地带性的森林顶极群落。其树种繁多、结构稳定,是全省森林资源的重要组成部分特别是槠栲类和樟、楠、檫类树种,既是我国南方珍贵的用材树种,又是我省分布广、(?)速生的乡土树种。由于人工栽培技术尚不(?)善,大面积营造具有适应性强、结构稳定的多树种多层次阔叶树混交林还有困难,目前只有通过天然更新、辅以人工促进措施,才能使大面积的阔叶林及许多珍稀树种得到保(?)和发展。因此,我们根据全省林业生产上(?)期采用顺序皆伐的实际情况,从1963年开始(?)在顺昌县武坊伐木场进行阔叶林皆伐和天然更新试验,历经18年,成林面积3,871亩。(?)将试验情况和调查结果介绍如下: 一、试验区概况顺昌县伐木场位于闽(?)林区。主要土壤类型为红壤,坡度多在26°以上,局部地段土层 Natural evergreen broad-leaved forest (hereinafter referred to as broad-leaved forest) is a provincial forest climax community. Its tree species is numerous and its structure is stable. It is also an important part of the province’s forest resources. In particular, the species of 槠 栲 and camphor, 楠 and 檫 are not only the precious timber species in south China, but also the provinces with wide distribution (?), Native tree species. Due to the fact that artificial cultivation techniques are not yet good, it is still difficult to create large-scale, multi-layered and multi-layered broad-leaved mixed forests with high adaptability and stable structure. At present, only through natural regeneration combined with artificial promotion measures can large- Broadleaved forests and many rare species are protected (?) And development. Therefore, based on the actual situation of sequential clear cutting in the whole province’s forestry production (?), We began to test the clear-leaved forestation and natural regeneration in Wufang logging yard in Shunchang County since 1963. After 18 years , Forest area of ​​3,871 acres. (?) The test results and survey results are as follows: I. Introduction of the experimental area Shuchang County, Shuimu located in Fujian (?) Forests. The main types of soil is red soil, slope more than 26 °, local soil layer