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Ecology of Red Maple Swamps in the Glaciated Northeast: A ...

Ecology of Red Maple Swamps in the Glaciated Northeast: A ...

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Contents<br />

Befa ce ...............................................<br />

iii<br />

ConversionTable ......................................... iv<br />

Frontispiece ............................................ v<br />

Chapter 1 . Introduction ...................................... 2<br />

Wetland Forests <strong>of</strong> <strong>the</strong> Nor<strong>the</strong>ast .............................. 2<br />

Classification ....................................... 2<br />

<strong>Red</strong> <strong>Maple</strong> Forested Wetlands .............................. 2<br />

Regional Sett<strong>in</strong>g ........................................ 4<br />

Physiography ....................................... 4<br />

Climate ........................................... 5<br />

Major Forest Regions ................................... 6<br />

<strong>Ecology</strong> and Distribution <strong>of</strong> <strong>Red</strong> <strong>Maple</strong> ........................... 6<br />

Relative Abundance <strong>of</strong> %d <strong>Maple</strong> <strong>Swamps</strong> ......................... 8<br />

Statewide Wetland Invexlbry Statistics ......................... 8<br />

Physiographic Variation <strong>in</strong> Wetland Abundance .................... 9<br />

Chapter 2 . The Physical Environment .............................. 11<br />

Surfkid Geology ....................................... 11<br />

Till ............................................. 11<br />

Stratified Drift. ....................................... 11<br />

Alluvium .......................................... 12<br />

Illydrogeologic Sett<strong>in</strong>gs <strong>of</strong> <strong>Red</strong> <strong>Maple</strong> Swmps ....................... 12<br />

Surface-water Depression Wetlands ........................... 14<br />

Surface-water Slope Wetlands .............................. 14<br />

Groundwater Depression Wetlaxlds ........................... 14<br />

Groundwater Slope Wetlands ............................... 16<br />

Hydrologic Budgets <strong>in</strong> <strong>Red</strong> <strong>Maple</strong> <strong>Swamps</strong> ......................... 17<br />

WaterRegimcs ........................................ 19<br />

Def<strong>in</strong>itions and Key Characteristics ........................... 19<br />

Water Levels <strong>in</strong> Rhode Island Swanlps ......................... 20<br />

Soils .............................................. 24<br />

Basic Types: Organic and M<strong>in</strong>erd ............................ 24<br />

I-Iyckic Soil Dra<strong>in</strong>age Classes ............................... 25<br />

Soil Type and Wetland Sett<strong>in</strong>g .............................. 25<br />

Phgrsicd and Morphollogic Properties ........................... 26<br />

Base Status and pH .................................... 26<br />

Chaphr 3 . The Plmt Community ................................ 28<br />

Community Structure ..................................... 34<br />

TreeLnlyer ......................................... 34<br />

SbbLayer ........................................ 36<br />

EIerbbyer ......................................... 37<br />

Spies Richness ....................................... 37<br />

Floristic Composition ..................................... 46<br />

Zone 1 . Sou<strong>the</strong>rn New England Upland, Seaboard Lowland, and Coastal Pla<strong>in</strong> .... 47<br />

Zone I1 . Greret Lakes and <strong>Glaciated</strong> Allegheny Plateau ................. 51

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