THE SELECTION SYSTEM AS A PERMANENT SYSTEM. 



151 



The permanent selection forest will always be found in moun- 

 tainous countries where the importance of the maintenance of an 

 unbroken leaf canopy outweighs all other considerations, 6r where 

 owing to the precipitous character of the ground no regular working 

 over the whole area of the compartment is possible. The silvicultu- 

 ral characteristics of the species entirely dominate the management 

 as already explained and necessitate very great modifications in the 

 system as applied to different species. 



" In forests 80 of pine, where the trees require bright and 

 abundant light, the selection system always does more or less harm. 

 Under its operation the leaf canopy is very far from being uniform, 

 is often open or breached with small gaps, and consists in places of 

 sickly saplings and poles that can never come to anything. Hence 

 that method has in nearly every case been abandoned with the 

 development of an export trade. In forests of silver fir, on the 

 other hand, the young plant of which species bears even heavy 

 cover for a long time, and shoots up rapidly as soon as it is 

 uncovered overhead, crops worked by selection remain dense and 

 well stocked with trees of all ages, provided the annual exploitations 

 are moderate. " 



This system has. lately been very highly developed in France 

 and Switzerland for silver fir under Q-uruaud and Biolly, who main- 

 tain that the highest productivity of the soil is obtained under 

 this system. 



The essence of the " Methode du Controle " is the frequent 

 complete enumerations and calculation of actual increment. The 

 yield is fixed for every compartment separately on the increment 

 per cent, of the growing stock. The advocates of this method even 

 go o far as to turn even-aged high forest into irregular high forest 

 on the grounds that this is more in accordance with nature. The 

 fallacy of this argument has been shown in an article in the 

 ' Indian Forester," 61 and so far as our management is concerned 

 the balance is overwhelmingly in favour of even-aged high forest. 



The selec- 

 tion 



system as 

 a perma- 

 nent 

 system. 



w Court d'amenagement. BROH.LARD. 



"Forest Management Indian Forester. December, 1921. TFEVOB. 



