MODIFICATIONS OF THE METHOD 



69 



Fig. 20. 



Diagram of a stand reproduced by the shelterwood method, each cutting 

 being applied uniformly to the entire area. Compare with Figs. 21 to 24. 



Fig. 21. 



Diagram of a stand reproduced by the strip shelterwood method. Two cut- 

 ting series are used. The period of regeneration is 20 years in length and the 

 stand is kept in the evenaged form. 



