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BIOGEOCHEMICAL CYCLES

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BIOGEOCHEMICAL CYCLES NATURE S RECYCLING BIOGEOCHEMICAL BIO-The elements in living things GEO-The elements in Rock or mineral CHEMICAL-The elements in a chemical ... – PowerPoint PPT presentation

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Title: BIOGEOCHEMICAL CYCLES


1
BIOGEOCHEMICAL CYCLES
  • NATURES RECYCLING

2
BIOGEOCHEMICAL
  • BIO-The elements in living things
  • GEO-The elements in Rock or mineral
  • CHEMICAL-The elements in a chemical reaction or
    Compound

3
4 MAJOR Cycles
  • Water
  • Carbon
  • Nitrogen
  • Phosphorous

4
Water Cycle
  • Precipitation Rain fall
  • Surface Run-Off
  • Storage of water In ice and snow
  • Evaporation water changing to gas from lakes,
    streams and oceans
  • Transporation water changing to gas from plants
  • Condensation water vapor condenses in the
    atmosphere and leads to precipitation

5
Water Cycle
6
CARBON
  • BASIC BUILDING BLOCK OF LIVING THINGS
  • STORED MOSTLY IN THE ATMOSPHERE
  • PRODUCED IN RESPIRATION
  • USED IN PHOTOSYNTHESIS
  • DISSOLVES IN SEAWATER
  • FOUND IN COAL, OIL, NATURAL GAS, ANIMAL
    SKELETONS, LIMESTONE

7
Carbon Cycle
8
NITROGEN
  • BUILDING BLOCK OF PROTEINS
  • MUST BE CONVERTED FROM NITROGEN GAS (N2) TO
    ANOTHER NITROGEN COMPOUND TO BE USED NITROGEN
    FIXING
  • NITROGEN FIXING DONE BY BACTERIA AND ALGAE
  • BROKEN DOWN AND RETURNED TO ATMOSPHERE
    DENITRIFYING
  • DENITRIFYING DONE BY BACTERIA

9
Nitrogen Cycle
10
PHOSPHORUS
  • BUILDING BLOCK OF GENETIC MATERIAL (DNA,RNA)
  • IN ENERGY COMPOUNDS (ATP)
  • MOSTLY FOUND IN PHOSPHATE ROCK
  • ENTERS CYCLE BY EROSION OR WEATHERING OF ROCK

11
Phosphorous Cycle
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