FT. II 



212 SYLVICULTURE IN THE TROPICS 



gregariously, or to such as have an even rate of 

 orowth, or which can accommodate themselves to 

 crowing into a storied forest, some of them reaching 

 the upper tier while others are growing in a lower tier, 

 filling up interstices below the gaps in the leaf-canopy 

 of the upper tier. It is not suited to places having 

 extremes of climate, especially violent winds, as in such 

 places the wind enters into the gaps made by the 

 regeneration fellings, and is apt to play havoc with the 

 trees which have been left standing. Neither is it a 

 suitable system where the ground is at once invaded 

 by weeds as soon as a gap in the leaf-canopy is made. 



There are three recognised methods of carrying out 

 these uniform fellings, viz. by the Sheltemvood- Compart- 

 ment Method, also called the Compartment Method, by 

 the Strip Method, and by the Group Method. 



(a) In the sheltenvood-compartment method the 

 respective regeneration fellings are carried on in their 

 proper order simultaneously over the whole of an area 

 (or compartment) to be regenerated. Thus, in a forest, 

 as each subdivision or compartment approaches in its 

 turn the exploitable age, it is treated over the whole 

 area first with preparatory-fellings, if these are needed, 

 then with seed-fellings, and finally with after-fellings. 



This method, which is adopted in several European 

 forests, has the advantage of simplicity. Each compart- 

 ment is destined to become a uniform wood, and the 

 regulation of the struggle for existence among trees of 

 practically the same age will be simplified. On the 

 other hand, it is rare that the stock is so uniform that 

 the regeneration fellings are needed over every part of 

 the area at one and the same time. It thus becomes 

 necessary to make them in some places too early, and 

 in others too late, and the best results are not obtainable. 

 With these fellings, as well as with clear-fellings, it 

 is necessary that the whole out-turn be marketable, 

 otherwise the operation may not only result in a 

 financial loss, but the ground will be covered with a 

 litter of dead trees, if it can be so called, which will 



