Periodical Literature. 



331 



not to emanate from a general plan, but is directly derived on the 

 basis of the given stand conditions, the existing stands and parts 

 of stands are placed in series according to managerial and eco- 

 nomic considerations and the area and volume of the ripe or in the 



IOC 

 60 

 60 

 4G 



zo 



}0. 



50 



60 



70 



60 



90 



Years 



m 



next 20 years ripening stands are calculated. The maturity of the 

 single stands then assumes the first place in determining the 

 budget, in other words Judeich's stand management or age class 

 method is the method in view, — an age class comparison forming 

 the basis for the felling area determination. 



To permit this free movement, the economic possibility of small 

 felling areas and the partial giving up of strict sustained yield 

 management are premises. 



In ranging the stands in the felling plan, it is only necessary to 

 make the felling area for the next decade approximate its propor- 

 tions for a 20 year period. 



