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SECURITY CLASSIFICATION OF THIS PAGEfWhan Data Entarad) 



Smooth cordgrass survival was approximately 50 percent and over 100 

 stems per meter squared were counted in some areas 1 year after planting. 

 Density and height of smooth cordgrass increased with increasing hours of 

 inundation. Rabbits apparently caused enough damage to plants outside a 

 rabbit-proof fence that significant differences in density between fenced 

 and unfenced areas occurred. 



Gulf cordgrass, marshhay cordgrass, and saltgrass survived better than 

 smooth cordgrass above mean high water (MHW) . At the highest elevation 

 (0.6 meter above MHW), survival was limited, regardless of species. 

 Needlegrass rush transplants failed to survive in significant numbers. Cost 

 per linear meter of shoreline for establishing the wave-stilling device and 

 planting the area was $15.90. 



Previous plantings were evaluated in June 1977. Smooth cordgrass density 

 had declined in block IV; saltcedar and giant reed continued to do well above 

 MHW; and needlegrass rush had multiplied profusely in the one area of 

 survival. Smooth cordgrass survived in one wave-exposed area where the soil 

 was covered with rock and shell. 



With adequate wave protection, smooth cordgrass can be established 

 below MHW in estuarine areas. Gulf cordgrass, marshhay cordgrass, and 

 saltgrass can be used above MHW for shoreline protection. 



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