By 1978 a continuous dune line was present at belt D. Dunes and a shrub 

 coranunity had developed on the old salt marsh. The foredunes ware 6 utters 

 high but only 80 meters wide, although almost no erosion occurred at belt D 

 between 1938 and 1952 (Fig. 123). An inspection of the topography at this 

 belt revealed that the shrub community grew within a very narrow elevation 

 range between marsh and dune communities. Washover deposition at the bayward 

 edge raised the elevation to above high marsh elevations. At the dune-shrub 

 interface, shrubs grew at the lower elevations, particularly in old washover 

 breaches that had overwashed most recently and were at a slightly lower 

 elevation than surrounding dunes. 



Unv«rj*!a1ed 

 Arnmophilo brevHiqulato 

 Lothyrus jopcnicu* 

 f-M^fn isio caudate 

 Sciidoyo ssmperyirens 

 Ltcheg merltima 

 J uncut qarerdi 

 fayrico penayl vonieo 

 ftrtstniaia gtallerlong 

 Rhus rodleana 

 Agropyrcn pungans 

 Sporlino po^na 

 Sporting cltarniflorq 

 Bocchofis hgiimif olio 

 Soiicormo vir Qinico 

 Suoatio rooritirao 

 Juniperus virqinione 

 Pirtu« rigido 

 Other 



100 pet cover 

 50 



Figure 123. Vegetative-physiographic transect of belt D. 



Two areas were chosen that have been significantly altered within the last 

 26 years. Because belt G was completely overwashed during 1952, all vegeta- 

 tive and physiographic features are very recent (Fig. 116). Beit K, located 

 near the present spit terminus, consisted of discontinuous dunes arranged in 

 spit recurves in 1952 (Fig. 124). 



Belt G was located at the southern end of North Beach in 1868, immediately 

 south of the 1846 inlet site (Fig. 90). In the 20 years after the area first 

 formed, salt marsh had developed behind a very narrow dune line (Fig. 116). 

 This marsh was not indicated on the 1886 map. Bay currents at the spit term- 

 inus nay have eroded the young raarsh. By 1938 a dune line broken by washover 



202 



