li Pi fc ri2_^ 





r.-n r-« -vrs T-.rc.-?cr» :rs nvpft^'."* '-"* , jVlT- t I'v L-rrj 



pm Failed to recover from overwash 



@ burial, x - H.3 pet (19 cases) 



p— i Recovered from overwash burial. 



\ A x « 15.5 pet (12 cages) 



FTJ 



10-19 20-29 50-39 40-49 



initial cover volue (pet) 



Kruskal-Wallis test results: The rank mean 

 for quadrats In which plants did not recover 

 frota burial does not differ significantly 

 from the rank mean for quadrats to which 

 plants did recover (P > 0.05). 



Figure 52. Comparisons of initial cover values for quadrats of Solidago 

 sempevvivens that recovered and failed to recover from burial, 



Initiol density 



7-8 9-10 



ol oies per quodrot) 



Failed to recover from overwash 



burial, x - 3.1 axes per quadrat 



(19 caaes) 



Recovered from overuash burial. 



x * 3.8 axes per quadrat 



( 12 cases) 



Kruskal-Uillla teat results: 

 for quadrats in which plants 

 from burial does 

 from the rank mea 



Figure 53. 



plants did recover (P > 0.05). 



The rank mean 



did not recover 



differ significantly 



for quadrats in which 



Comparisons of initial density values for quadrats of Solidago 

 eemper'viyens that recovered and failed to recover from burial. 



20-29 30-39 40-49 



Bund Depth (in em) 



Failed to recover from ovsiKosh 

 burial, x » 33 cm (19 cases) 



Recovered froa overwash burial. 

 i - 40 cm (12 cases) 



Kruekal-Wellis test results: The rank aean 

 for quadrats in which plantb did not recover 

 froa burial does not differ significantly 

 from the rank ESan for quadrats in which 

 plan.s did recover (P > 0.05). 



Figure 54. Comparisons of burial depths for quadrats of Solidago 

 eempevvifene that recovered and failed to recover. 



Using the 12 quadrats that recovered from burial, it was found that plant 

 recovery is not correlated to initial cover, initial density, or depth of 

 burial using multiple regrassl »n. In both 1977 and 1978, correlation between 

 cover and density for Solidago eempervirene was highly significant (1977, 

 P < 0.01, r - 0.421; 1978, P < 0.01, r - 0=878). 



Solidago eempervivens can recover from as such as 56 centimeters of over- 

 wash burial. Plant recovery showed no differential response to varying burial 

 depth. The physiological limit of Solidago seniperciveruz to grot* through sand 

 deposits may not have been reached using the available data, but four quadrats 

 with more than 55 centimeters of overwash burial did fail to recover. Quad~ 

 rats with high cover and density did not recover froa burial any better than 

 quadrats with low cover and density. Solidago asmpervirens plants can vary 



102 



