Biogeochemical+Cycles+and+Pollu3on+ - University of Washington

Biogeochemical Cycles and Pollu3on

Environment 100

Tuesday, May 22, 2012

Biogeochemical Cycles Outline

? What are biogeochemical cycles ? Water Cycle ? Carbon Cycle

? Fast and Slow ? Biofuels and Tilman`s principles

? Nitrogen Cycle

? Haber--Bausch Process

Photosynthesis drives the carbon cycle

Most of a tree is built out of...

1. Wood, duh

2. Atmospheric CO2 3. Nutrients from the

soil especially nitrates and phosphates

33% 33% 33%

1

2

3

Images: s1600/Carbon+Cycle+Cropped.jpg

biofuel.jpg

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