Wetland Soils Natures Sponges. What is a WETLAND?

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Presentation transcript:

Wetland Soils Natures Sponges

What is a WETLAND?

Peat Bogs: Poor Man’s Charcoal

HISTOSOL Organic, Wet

What are hydric soils??? Hydros = water in Latin Surface layers are usually BLACK The subsoil is GRAY, and has freckles of bright ORANGE and REDS. Some very wet soils may even be BLUE, GREEN, or PURPLE!!!

Wetlands cover less than 1% of the earth, yet provide refuges to over 100,000 different types of animals

Wetlands have lots of bacteria, including some that do not need to breathe oxygen. There are rushes, reeds, and water loving trees like mangroves.

Where do wetlands form?

Wetlands are a sponge, and soak up pollutants. Wetlands reduce nitrate (a pollutant) by 80%.

Why would you drain a wetland?

If wetlands are drained, the water in them starts to evaporate, and the ground starts to sink, like a drying sponge. There is also an increase risk of flooding.

In 1950, while harvesting PEAT for fuel, two Danish man found a 2000 year old body, skin and all. How is this possible?

Tonle Sap: Wetlands for Life Floating Village in Tonle Sap, Cambodia

Vocabulary Wetland Peat

Vocabulary Histosols - organic soils Hydric soils – soils that have properties of being waterlogged.