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-year-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 11 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. 
