FIGURES (Continued) 

 Number Page 



21 Decomposition of various kinds of plant material on the 



ground or submerged in water at different sites 46 



22 Locations of New England towns that were settled by 1650 



adjacent to fresh or salt hay marshes 49 



23 Top: Salt hay on staddles to keep it above the tide. 

 Bottom: Gundalow loaded with salt hay to be floated out 



on the flood tide 51 



24 Amount of coastal wetlands in the Northeastern United ' 



States 52 



25 Amount of time the grasses and surface sediments at Farm 

 Creek, Connecticut, are exposed to the atmosphere at 



different elevations across the marsh 54 



26 Concentrations of copper at various depths in the 

 sediment under Spartina patens at Farm Creek Marsh, 



Connecticut 56 



27 Concentrations of manganese at various depths in the 

 sediment under the Spartina patens at Farm Creek Marsh, 

 Connecticut 56 



28 Historical variation in the anthropogenic fluxes of copper, 

 zinc, and lead recorded in the high marsh sediments at Farm 



Creek, Connecticut 57 



29 Aboveground biomass of Spartina alterni flora in experimental 

 plots treated with soluble iron, copper, and chromium at Great 

 Sippewissett Marsh, Cape Cod 59 



TABLES 



Number 

 1 



2 



Rates of sea level rise relative to the land in the 

 Northeastern United States 



Estimates of accretion rates in salt marshes along the 

 Northeastern United States 



Pa^e 

 3 

 4 



vn 



