1840 



Canadian Forestry Journal, August, 1918 



Due to the fact that this small sap- 

 pressed material receives this optimum 

 condition for growth at an earlier 

 age, it can be expected to arrive at a 

 merchantable size in a shorter time 

 and at a younger age than did the 

 trees of the original stand. 



The actual relation of age to diam- 

 eter is of very little consequence to 

 the lumberman. He cares abso- 

 lutely nothing whether the spruce 

 tree that he cuts is 100 or 180 years 

 old, provided that it is of size and 

 condition fit for cutting and market- 

 ing. Nor does he regard it as im- 

 portant that the trees now present in 

 the near unmerchantable portion of 

 the stand are 30 or 100 years old. 

 His particular interest is the time 

 that will be required by the trees 

 left after cutting to grow from one 

 diameter class to the next, and 

 especially through the inch classes 

 now unmerchantable into dimen- 



sions that are of merchantable and 

 market size. 



In conclusion, the foregoing has 

 been based on and illustrated by 

 studies made on the Adirondack 

 Spruce, but it is believed that it is 

 applicable to Eastern Spruce and 

 Balsam wherever grown. 



SUMMARY 



1. Growth under a heavy crown 

 cover in virgin forest is not to be 

 accepted as part of the productive 

 forest, and cannot be used as a 

 measure of future possibilities. 



2. The effect of the removal of the 

 overtopping trees is an increase in 

 the growth of the surviving suppressed 

 material. 



3. This effect is not immediate 

 but follows a period of readjustment, 

 the length of which is dependent 

 upon the crown and root develop- 

 ment of the individual tree. 



Trees And Western Crop Increase 



(From Regina Leader) 



The present time, when so many 

 Westerners are suffering from crop 

 failure, seems opportune for consid- 

 eration of the question of tree 

 planting. 



Some time ago, Dr. W. W. And- 

 rews of Regina, suggested the plant- 

 ing of each road in the province with 

 a double row of trees on each side, 

 the inner row to consist of ash and 

 elm, intermixed with more rapidly 

 growing trees for almost immediate 

 protection, which could be removed 

 as soon as the others became of 

 sufficient size, while the outer row, 

 set 100 feet back from the road on 

 either side should consist of carra- 

 ganas, etc., which would form a good 

 hedge, and so prevent snowdrifts in 

 winter. A scheme of this kind, car- 

 ried out throughout the province, 

 would not only protect the roads, 

 thus making travelling in winter 

 much easier, owing to the absence of 

 deep snow drifts, but it would have 

 what is perhaps an even more import- 



tant effect. It is a fact, unfortunate- 

 ly too well-known to the farmers of 

 the province, that the crop in certain 

 parts has this yearprovedalamentable 

 failure. It is equally well-known 

 known that the crop in the northern 

 of the province is at least an 

 average size, and the question natur- 

 ally arises as to what is the explana- 

 tion. There may be several reasons 

 for this, but one factor which may 

 easily be overlooked is the presence 

 or absence of trees, and this 's a 

 {Continued on page 1850) 



4. — 



A NATIONAL WARNING. 



Canada will pay her war debt from 

 Lands, Forests and Mines. The Fire 

 Fiend, who is the Kaiser's ally, is 

 scheming to finish the forests first. 

 He can't kill the Land or Mines, but 

 the Forest is his natural prey. 



Are you aiding this Fire Fiend by 

 leaving your camp fire burning? 



+._.- 



^ 



