Table 13. Cumulative mean volume of sand accumulated over 3-, 15- 

 27-month periods at Drum Inlet, North Carolina. 



and 



Treatment 



Plot 

 No. 



Volume of sand (cubic meters 



per meter of dune) by time 



after planting^ 





3 months 



15 months 



27 months 













NJ-327 American beachgrass 



Cape American beachgrass 



Hatteras beachgrass 



Bitter panicum (Hatteras) 



Hatteras beachgrass plus 

 Bitter panicum (Hatteras) 



Bitter panicum (Hatteras) plus 

 Sea oats (Drum Inlet) 



Hatteras beachgrass plus 

 Bitter panicum (Hatteras) plus 

 Sea oats (Drum Inlet) 



1 



X 



2 



X 



3 



X 



4 

 ^3 



X 



5 



X 



6 

 IO3 



X 



7 

 ^3 



X 



3.4 

 2.4 

 2.9 



4.0 

 2.7 

 3.3 



2.7 

 2.3 

 2.5 



3.3 

 3.1 



3.2 



2.3 

 2.6 

 2.4 



3.3 

 1.7 

 2.5 



2.6 

 2.8 



2.7 



4.8 

 7<,1 

 6.0 



6.7 

 6.6 

 6.6 



6.9 

 6.8 

 6.9 



3.0 

 4.9 

 4.0 



4.8 

 5.4 

 5.1 



5.6 

 6.7 

 6.2 



6.3 



■ 6.4 



6.4 



7.1 



10.8 



9.0 



8.8 



10.3 



9.5 



10.7 



9.8 



10.2 



3.7 

 5.0 

 4.3 



7.3 

 8.4 

 7.9 



7.7 

 9.7 

 8.7 



7.2 

 9.2 

 8.2 



1. Based on two elevational cross sections for each of two replicates 

 per treatment. 



2. Planting established in March 1973. 



3. Treatment mean. 



38 



