24 TERMS USED IN FORESTRY AND LOGGING. 



Strip method. That method of conservative lumbering in which reproduction is 

 secured on clean-cut strips by self-sown seed from the adjoining forest. See Forest 

 management. 



G. , Coulissenhieb. F. , coupe par bandes alternes. 



Strip stand method. A modification of the stand method in which reproduction 

 cuttings are not made simultaneously throughout the stand, but the stand is 

 treated in narrow strips at such intervals that reproduction cuttings are generally 

 going on in three strips at one time, one strip being in the removal stage, one in 

 the seeding stage, and one in the preparatory stage. See Forest management. 



Strip survey. See Valuation survey. 



Stuh, n. That portion of the stem left standing when a tree is accidentally broken 

 off. 



Stump, n. That portion of the stem below the cut made in felling a tree. 

 Syn.: stool. G., Stock. F., souche. 



Stump ag'e. The age of a tree as determined by the number of annual rings upon 

 the face of the stump, without allowance for the period required for the growth of 

 the tree to the height of the stump. 



Stump analysis. See Tree analysis. 



Stump heig'ht. The distance from the ground to the top of the stump, or from the 

 root collar when the ground level has been disturbed. On a slope the average dis- 

 tance is taken as the stump height. See Cutting height. 



Stump shoot. See Sprout. 



Suhcompartment, n. See Compartment. 



Sun scald. An injury to the cambium caused by sudden exposure of a tree to 

 strong sunlight. 



Syn.: scald. G., Sonnenbrand. F., brulure, coups de soleil. 



Suppressed, a. Having growth more or less seriously retarded by shade. See Crown 

 class. 



G., unterdriickt. F., doming. 



Surface lire. See Forest fire. 



Sustained working. See Working. 



Sustained yield. See Working. 



System of lii^li forest with standards. See Reserve seed method. 



Technical rotation. See Rotation. 



Thicket, n. A stand of saplings. 

 G., Dickicht. F., fourre. 



Thin, a. See Crown density. 



Thinning', n. The removal of a portion of the trees with the object of improving 

 the stand without inviting natural reproduction. The following kinds of thin- 

 nings are distinguished: cleaning, improvement thinning, accretion thinning. 

 G., Durchforstung. F., coupe d'eclaircie. 



Tiniher form factor. See Form factor. 



Timherland, n. See Forest. 



Timber tract. See Forest. 



Tolerance, n. The capacity of a tree to endure shade. 



