156 THE THEORY AND PRACTICE OF WORKING PLANS 



(4) Soils (depth, fertility, etc.). 



(5) Climate (maximum, minimum, and average tem- 



perature, rainfall, prevailing wind direction). 



d. Social and industrial features. 



(i) Population. Dependence on forest for work and 

 fuel and timber supply. 



(2) Labor supply. 



(3) Local conditions^lumbering, grazing, mining, agri- 



culture, etc. Interrelation with forest. 



e. Digest of working-plan conference. 



/. Time, method, and personnel of field work. Cost, if 

 desired. 



2. Foundation. 



a. Growing stock (estimates). Tabulation. (Stand and 



stock tables if uneven-aged.) 

 h. Increment per acre or per cent or both. 



c. Distribution of the age classes. Tabulation. (Diam- 



eter classes if uneven aged.) 



d. General stand table. Tabulation. 



e. Maps. Statement of maps prepared. The maps them- 



selves should go in the back of the plan or else be 



kept on file separately. 

 /. Forest description. 

 g. Division of area. Working unit, block, compartment, 



subcompartment. Working group if necessary. 



3. Recommendation. 



a. Object of management. Wishes and purpose of the 



owner (policy, if national or state forest). Exploita- 

 tion or sustained yield (annual, periodic). Produc- 

 tion of cordwood, sawtimber, pulpwood, turpen- 

 tine, etc. 



b. Practical restrictions. Market, logging accessibility, 



special danger from fire, erosion, avalanches, etc. 



c. Silvicultural method of management. 



(i) Silvicultural method or methods, their proposed 

 application. 



