DEVELOPING FOOD AND SHELTER BY PLANTING 



655 



Determining Cover Eslahlislinirnl Methods to he I srd 



The methods by which the cover types shoultl lie estabHslied arc the (usl coiisiileratioii. 

 The character of the soil is the major limiting factor. The simplest and cheapest way, pro- 

 viding it works out satisfactorily is to let nature take her own course through the orderly 

 process of plant succession, while the most difficult and expensive one is to set out each woody 

 plant. In some instances, there are intermediate stages that may be employed whereby one 

 can avoid complete planting of the area by assisting the establishment of desired types by 

 cultural operations that promote the growth of certain species and groups of plants, while 

 retarding unproductive ones. 



TABLii 97. USES OF TREES, SHRUBS AND VINES FOR PLANTATIONS. 



AND THEIR SITE REQUIREMENTS 



♦Species included are those that have proved suitable for use in plantations. Others, as hemlock, mountain maple, striped maple^ 

 red-berried eider and maple-leaved viburnum have not been generally successful in field plantings. Some such as blackberries 

 pin cherry and blueberry are estabhshed more easily by cultural practices. 



ALarch. while a conifer, is not evergreen but sheds its needles in the autumn. 



fThe apples and crabapples are not actually shrubs, but are trees. However, they are part of the fall feeding grounds associa- 

 tion and not the hardwood woodland. 



