6 PRACTICAL FOREST MANAGEMENT. 



adequate description to be written. In the plains it is not suffi- 

 cient to walk round the boundary of the compartment ; an entirely 

 wrong impression of the contents is often obtained in this way ; it 

 is absolutely necessary, in order to obtain a just appreciation of 

 its contents, to traverse the compartment in at least two directions. 

 As the division into compartments varies with the intensity of 

 management, so will the description of compartments vary. In 

 some cases blocks only have been described, and while this is 

 sometimes sufficient to give the executive officer an idea of what 

 the block contains, such diffuse descriptions are useless for working 

 plan purposes. In all areas under intensive management a com- 

 plete description of compartments or at the least a detailed 

 description of the regeneration area is necessary. Elsewhere, as 

 for instance, in protection working circles, much greater latitude 

 may be allowed, the compartments may be bigger and the descrip- 

 tion of a general nature. The description of compartments is 

 entered in the compartment history which is the basis of the 

 practical management of the compartment. 



The description of compartments is carried out under the 

 standard headings of the text-books as given in the compartment 

 history form, viz. 



Soil, situation, aspect. 



Allotment to working circles. 



Allotment 'to periods. 



Description of the growing stock. 



Quality class. 



Stock counted. 



Prescriptions of the plan. 



Ihesoil Tllis Deludes the geology so far as it affects the character of 



the soil and the vegetation. The nature of the underlying rock 

 has a very powerful influence on the composition of the soil and 

 the vegetation it bears. Trevor 32 records an instance in Kulu 

 where the sudden change in the rock from shales to quartzite 



" Working Plan for Kulu Divition. TREVOR. 



