The optimization of replanting trees based on basal area increment models and competition thresholds of saplings in northeastern China

[Objective]The mixed-broadleaved Korean pine forests have been transformed into various types of secondary forests due to excessive timber extraction.In contrast to virgin forests,these secondary forests,are distinguished by inadequate natural regeneration of preferred tree species,and worse production.Consequently,New methods based on forest management theories should be developed to accelerate the restoration of secondary forests.The main aims of the manus…查看全部>>