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Bio 366 > Lec 4 > Flashcards

Lec 4 Flashcards

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1
Q

Wetland

A

Land that is saturated with water long enough to promote wetland or aquatic processes

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2
Q

Indications of wetlands

A

Poorly drained soils

Hydrophytic vegetation

Various kinds of biological activity that are adapted to a wet environment

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3
Q

Wetlands have low

A

Oxygen due to high levels of water

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4
Q

Wetlands that Accumulate peat

A

Bogs Fens

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5
Q

Peat

A

Organic matter of soil

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6
Q

Wetlands that do not accumulate peat

A

Swamps

Marshes

Shallows

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7
Q

Wetlands form along complex gradients including

A

Hydrology, chemistry, biotic

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8
Q

Bogs

A

Low nutrients

Low moisture

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9
Q

Fens

A

Low moisture

More nutrients

Slow moving water

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10
Q

Swamps

A

Lots of nutrients

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11
Q

Marshes

A

Lots of nutrients as well

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12
Q

Biggest contributions of peatlands

A

CO2 and methane

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13
Q

Peat

A

An organic soil or deposit with an O horizon that is thick

Peat forms when decomposition is slower than deposition

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14
Q

Key species of peat

A

Sphagnum spp. moss

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15
Q

Peatlands

A

Ecosystem where 3-40cm of peat has formed

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16
Q

Does peat accumulate fast or slow?

A

Slowly

17
Q

Wet hot places have more or less peatlands?

A

More

18
Q

Canada has

A

The most peatlands in the world with more as you go North

19
Q

Peatland functions

A

Regulation of global climate, catchment hydrology, and soil condition

Habitats

Energy generation

Humus and organic fertilizer when peat is harvested

Bio 366 (15 decks)

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