Secondary forest of

In the process of secondary succession from conifer - broadleaf forest to broadleaf forest, species richness fluctuated remarkably.

在针阔混交林向阔叶林演替过程中，物种丰富度指数表现为较大的波动性。

Vegetation is Laiyuan County of North China flora, the majority of existing vegetation for irrigation in the bushes, followed by natural secondary forest and plantation, forest coverage is 18.24%.

涞源县植被属华北植物区系，现有植被大部分为灌草丛，其次是天然次生林和人工林，森林覆盖率为18.24%。

It also discusses how to combine it with forest management and solve some problems in forest management use the secondary development function of virtual forest.

同时论述了如何将它同森林经营管理结合起来，并通过虚拟林相的二次开发功能来解决森林管理中的一些具体问题。