EXPERIMENT STATION BULLETINS. 



407 



and possible future utilization. In many places nut trees can be handled 

 to advantage where heavier soils are found underlying the sand. In 

 some blows, orchards might be maintained on the strips between the 

 barriers, It seldom is advisable to use annual crops upon these strips. 

 Once established a tree canopy should always exist. When a break 

 occurs through the opening of a gap in a barrier, for road or street, 

 the soil exposed should be paved or sodded to prevent excavation by the 

 wind. The later management of the forest must be by a conservative 

 selection removal of individual trees and never by clear cutting. 



f - 





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4 4 i'-^ 



£ A A ^ L i^ ^ 



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* A <i ^ i 4-*-'*'''"^\^-t * ' ^^ * • • • 



A AAA a. A a a* 

 A a ~ a - r 4 - a - a -.--**■» -i 4 a 



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Fig. 15. Diagram of Shelter Belt Method. 



a. Barrier of rubbish and waste. 



b. Beach grass planting. 



c. Willow cuttings. 



d. Poplar cuttings, or rooted sets. 



e. Conifer planting. 



f. Contour lines. 



ENTIRE COVER METHOD. 



This system of dune reclamation is applicable either where immediate 

 cover is required, where future values justify the expense of immediate 

 and heavy planting, or where sufficient funds are available for the com- 

 pletion of the work. In some cases extensive areas of valuable property 

 are in the immediate path of a rapidly traveling dune. Fig. 12 shows a 

 cemetery lying in the path of an interior blow, reclamation of which 

 might justify the expenditure of large sums for quick control. On 

 smaller dunes this method is especially applicable, as where a city or 

 town may be the unit doing the control work. Municipal organizations 

 are usually in a position to purchase such areas if they are held by pri- 

 vate parties who refuse to control them. Such steps seem advisable, 

 since, when once under control these areas become valuable park or 

 municipal forests. The planting of such areas would best be done by 



