FORESTRY AND FOREST MANAGEMENT 



351 



tant step in this direction. Tree cutting is being so planned 

 that the more mature timber may be cut each year and re- 

 newed by the growth of the uncut trees. When this is prop- 

 erly done, the same amount of timber may be cut each year 

 and thus a definite supply can be permanently relied upon. 

 Some states have endeavored to encourage this sort of con- 



FIG. 199. A well-managed forest; brush piled to prevent fire. 



servative lumbering by regulating the taxes on timber lands 

 according to the proportion of trees cut. 



365. Forest Regions of the United States. The northern 

 forests include those of the New England states, New York, 

 the portions of other states covered by the Allegheny Moun- 

 tains, and the states of Michigan, Wisconsin, and Minnesota. 

 This region has been until recently the home of the pine 

 industry. The forests of northern New York and Maine are 

 still an important source of spruce for paper pulp, although 

 large amounts of pulp wood are now imported into the 



