Table 5. Sand volume for 290-foot 

 above planting elevation. 



foredune cross sections 













Volume , 



yd^m^) 











Planting 













Location 



Planting 

 dates 



elevation 

 ft(m) 



Mar. 1975 



Aug. 1975 



Mar. 1976 



Aug. 1976 



1. 



Unplanted natural area 



Mar. 69 



4.0 



24.4 



25.7 



26.3 



29.7 









(1.2) 



(18.6) 



(19.6) 



(20.1) 



(22.7) 



2. 



Planted areas 



a. 1,200-ft sea oats 



Mar. 69 



4.0 

 (1.2) 













North 400 ft 







35.3 



38.6 



39.6 



42.9 





(122 m) 







(27.0) 



(29.5) 



(30.3) 



(32.8) 





Middle 400 ft 







39.6 



43.3 



44.8 



45.9 





(122 m) 







(30.3) 



(33.1) 



(34.3) 



(35.1) 





South 400 ft 







47.1 



51.0 



52.6 



51.6 





(122 m) 







(36.0) 



(39.0) 



(40.2) 



(39.5) 





Total 1,200 ft 







40.0 



43.8 



44.9 



46.1 





(366 m) 







(30.6) 



(33.5) 



(34.3) 



(35.2) 





b. Dune-width extension 



Oct. 69^ 



4.4 



35.6 



38.5 



39.7 



43.6 









(1.3) 



(27.2) 



(29.4) 



(30.4) 



(33.3) 





c. 1 , 100-ft bitter panicum 



Feb. 70 



4.4 

 (1.3) 













North 550 ft 







40.5 



43.5 



40.3 



46.7 





(168 m) 







(31.0) 



(33.3) 



(30.8) 



(35.7) 





South 550 ft 







32.5 



35.2 



41.4 



38.6 





(168 m) 







(24.8) 



(26.9) 



(31.7) 



(29.5) 





Total 1,100 ft 







36.4 



39.4 



40.9 



42.7 





(335 m) 







(27.8) 



(30.1) 



(31.3) 



(32.6) 





d. 1 ,200-ft bitter panicum 





5.2 

 (1.6) 













North 600 ft 



Feb. 72 















to 300 ft 







17.7 



18.8 



20.4 



25.5 





(0 to 91 m) 







(13.5) 



(14.4) 



(15.6) 



(19.5) 





300 to 600 ft 







16.6 



20.0 



19.0 



23.6 





(91 to 183 m) 







(12.7) 



(15.3) 



(14.5) 



(18.0) 





Total north 600 ft 







17.2 



19.4 



19.7 



24.6 





(183 m) 







(13.2) 



(14.8) 



(15.1) 



(18.8) 





South 600 ft 



Apr. 72 















600 to 900 ft 







21.2 



23.0 



25.1 



30.0 





(18J to 274 m) 







(16.2) 



(17.6) 



(19.2) 



(22.9) 





900 to 1,200 ft 







15.4 



17.7 



18.1 



23.4 





(274 to 366 m) 







(11.8) 



(13.5) 



(13.8) 



(17.9) 





Total South 600 ft 







18.3 



20.4 



21.6 



26.7 





(183 m) 







(14.0) 



(15.6) 



(16.5) 



(20.4) 





Total 1,200 ft 







17.7 



20.0 



20.7 



25.6 





(366 m) 







(13.5) 



(15.3) 



(15.8) 



(19.6) 



^Dune-width extension plantings were on different months in 1969; 

 October was used as an average date. 



36 



