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Biogeochemical Cycles Notes

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Biogeochemical cycles notes

Biogeochemical Cycles Notes

Biogeochemical cycles notes

Topic:Biogeochemical Cycles Notes

Biogeochemical cycles notes

The Ecosphere is a completely sealed ecosystem containing active microorganisms. Simply provide it with indirect natural or artificial light and warmth and the ecosystem will thrive without needing further attention. The light allows the micro algae to produce oxygen and food for the shrimp, which in turn produce carbon dioxide and nutrients for the algae to grow.

Biogeochemical cycles notes

A zoo is not a closed natural ecosystem because it requires huge inputs of resources.

Biogeochemical cycles notes

Generalized BGC Cycle

The major parts of the biosphere are connected by the flow of chemical elements & compounds. In many of these cycles, the biota plays an important role. Matter from the Earth’s interior is released by volcanoes. The atmosphere exchanges some compounds & elements rapidly with the biota & oceans. Exchanges of matter between rocks, soils, & the oceans are generally slower.

Carbon oxygen cycle

Carbon-Oxygen Cycle

Biogeochemical cycles notes

Carbon-Oxygen Cycle

Biogeochemical cycles notes

Rhizobia (microbial bacteria) on the Root Hair of a Clover Plant: Mutualism

The Rhizobium nitrogen “fixer” makes threads that firmly attach to the root hair.

Nitrogen cycle

Nitrogen Cycle

Stop here

Stop Here

We’ll finish next class!

Work on the Nitrogen Cycle Handout

Biogeochemical cycles notes

The figure below is an excellent example of the ability of wind to carry and deposit sediment.

Great Sand Dunes National Monument, Colorado. Sand accumulates in the San Luis Valley on the windward side of the Sangre de Cristo Mountains, which lie in the background.

Biogeochemical cycles notes

A rock in southern Iceland fragmented by freeze-thaw action.

Frost action occurs when water in cracks and joints of rocks freeze and expand.

Biogeochemical cycles notes

Water Erosion

Example of the ability of rivers to cut downward into the rising landscapes; Downcutting of the San Juan River, Utah.

Mineral cycle

Mineral Cycle

Biogeochemical cycles notes

Think About It !What happens when you take a soda can from the refrigerator on a hot summer day? Can you explain what actually happens when the can “sweats”? What process in the hydrologic cycle is occurring on the surface of the can?

Water cycle

Water Cycle

Don t forget to

Don’t Forget to…

  • Read activity instructions all the way thru b4 u start!!!

  • Listen 2 me……I can’t help if I can’t talk bcuz u r!!!

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