28 



FORESTRY IN NEW ENGLAND 



remaining trees. The mother trees also benefit from the thin- 

 nings and make a more rapid growth during the remainder of 

 their lives. 



2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 2t> 27 2s 



Fig. g. — The shelterwood sj'stem. 



I. An even-aged stand sixty years old marked for the preparatory cutting. 



II. Five years after the preparatory cutting has been made. The seedbed has been 

 made more favorable for germination and a little reproduction may be seen in the 

 more open places. The stand is marked for the seed cutting. 



[II. Ten years after the seed cutting. Complete reproduction has been secured and the 

 stand is marked for the final cutting. 



The system can be applied only with windfirm species or where 

 there is no danger from windfall, as the system of cutting leaves 

 many trees isolated. On account of the gradual removal of the 

 stand, by means of several cuttings, the shelterwood system is 



