2. 



CANOPY, MAIN. The principal storey of the stand formed by the 

 crowns of the dominant and co-dominant trees.* 



CLAY. The finest soil particles, under 0.002 mm. in diameter. 

 Clay exhibits colloidal properties. (BCFT) 



CLAY LOAM. A soil intermediate in texture between clay and loam. 

 (BCFT) 



CLEANING. An operation in a young stand, not past the sapling 



stage, to free the best trees from undesirable individu- 

 als of similar age or size which overtop them or are 

 likely to do so. Cleaning may be accomplished by hand 

 or by mechanical or chemical methods.* (See Appendix.) 



CLIPPING. An operation, usually carried out in conjunction with 



cleaning, to remove branches or leaders affected by insects 

 or disease for the purpose of controlling the spread of 

 the disease or insect infestation.* 



COMPARTMENT. A unit of a forest, permanently defined for the pur- 

 poses of easy location of forest operations, administra- 

 tion, and record. (BCFT) 



CONVERSION. A change from one silvicultural system, or species, 

 to another. (BCFT) 



COUPE. A cutting or felling area, usually one of an annual succes- 

 sion unless otherwise stated. (BCFT) 



COVER, CROWN. The horizontal projection on the ground of a tree 

 crown. (BCFT) 



COVER, GROUND. The carpet of herbaceous plants, shrubs, ferns and 

 mosses, which cover the soil. (BCFT) 



CUT, ALLOWABLE. The amount of forest produce, howsoever measured, 

 that can be cut in a given period under sustained yield 

 management . ( BCFT ) 



CUT, CLEAR. The removal of the entire growth in one operation, 

 with or without leaving seed-trees, from an area wider 

 than two chains.* (Soe Appendix.) 



CUT, HARVEST. The cut(s) from which the final yield is derived; 

 it may be either a single (clear-cut) or a series of cuts 

 to produce regeneration (shelterwood) . (BCFT principal 

 felling) 



INTERMEDIATE CUT. An opening of the canopy designed to stimulate 

 increment of the individual trees left to form the final 

 crop.* (See Appendix.) 



