32 BULLETIN 244, U. S. DEPARTMENT OF AGRICULTURE. 



RECOVERY AFTER SUPPRESSION. 



Shortleaf pine possesses to a high degree the ability to recover after 

 suppression. This feature is well exhibited in a rapid increase in 

 diameter growth following an increase in the supply of light. Events 

 of any sort which produce changes in stand densities are recorded 

 in quite a remarkable manner by shortleaf pine. 











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Fig. 11.— Effect of an ice storm upon subsequent diameter growth in a 22-j-car-old crowded shortleaf stand. 

 Tree 1, formerly dominant, permanently bent over by ice and suppressed for a period of 14 years; tree 

 2, formerly partially suppressed, given more light by the storm, vigorous and dominant for the past 14 



years. 



The effect of a heavy ice storm upon a thrifty 22-year-old fully 

 stocked stand in Nevada County, Ark., as recorded by the diameter 

 growth, is seen in figure 1 1 and Plate VIII. The storm occurred in 

 December, 1898, and the stand in 1912 was 36 years old. The heavy 

 ice bent over many of the larger-crowned, dominant trees, thereby 

 opening up many smaller-crowned, middle and lower class trees. 



