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Phosphorus cycle
PHOSPHORUS CYCLE
     Group Members
      Imran Zardari
        (12IEEM12)
  Muhammad Fahad Ansari
        (12IEEM14)
     Ali Arslan Pathan
        (12IEEM28)
PHOSPHORUS CYCLE

• The phosphorus cycle is
  the biogeochemical cycle that describes
  the movement of phosphorus through
  the lithosphere, hydrosphere, and
  biosphere.
The Cycle

 The phosphorus cycle is long
 and slow, but it is an important
 part of the environment.

 It helps plants grow, and is
 used by farmers to fertilize
 them. When animals eat the
 plants, they absorb phosphates.
The Cycle (continue)

   Phosphates move quickly through
    plants and animals; however, the
    processes that move them through
    the soil or ocean are very slow,
    making the phosphorus cycle overall
    one of the slowest biogeochemical
    cycles.
When the animals die, their
body decays and the
phosphorus is absorbed into
the soil, where it re-enters
plants.
What isn’t absorbed by plants
ends up in rock, and may stay
there for millions of years,
slowly being released as the
rocks weather.
Phosphorus cycle
Phosphorus cycle
Atmosphere
The Phosphorus cycle has no
involvement in the atmosphere,
because it does not naturally
form in gaseous forms.
Hydrosphere
 Phosphorous    usually enters the
  hydrosphere by the phosphate
  salt rocks found on the ocean
  floor. As the water erodes them
  away, the phosphorous
  escapes.
 Marine organisms take some of
  the phosphorus particles in
  order to live and grow.
Lithosphere
 Phosphorous   is presented in
  the form of rocks and soil.
 Phosphates go down to the
  bottom of the ocean and forms
  rocks over million of years.
 Phosphates enters the soil
  when plant and animal matter
  decompose, the cycle repeats.
Biosphere

 Phosphorous is used for
 organisms to build
 DNA(Deoxyribonucleic acid),
 RNA(Ribonucleic acid), and
 ATP(Adenosine-triphosphate).
Biosphere (continue)

   Phosphate is in plants, which the
    herbivores eat, which the
    herbivores are eaten by the
    carnivores. Than phosphorus is
    released back into the soil by the
    herbivores and carnivores waste.
Human Inputs to the
Phosphorus Cycle
   Human influences on the phosphate
    cycle come mainly from the
    introduction and use of commercial
    synthetic fertilizers.
Phosphorus cycle

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Phosphorus cycle

  • 2. PHOSPHORUS CYCLE Group Members Imran Zardari (12IEEM12) Muhammad Fahad Ansari (12IEEM14) Ali Arslan Pathan (12IEEM28)
  • 3. PHOSPHORUS CYCLE • The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
  • 4. The Cycle The phosphorus cycle is long and slow, but it is an important part of the environment. It helps plants grow, and is used by farmers to fertilize them. When animals eat the plants, they absorb phosphates.
  • 5. The Cycle (continue)  Phosphates move quickly through plants and animals; however, the processes that move them through the soil or ocean are very slow, making the phosphorus cycle overall one of the slowest biogeochemical cycles.
  • 6. When the animals die, their body decays and the phosphorus is absorbed into the soil, where it re-enters plants. What isn’t absorbed by plants ends up in rock, and may stay there for millions of years, slowly being released as the rocks weather.
  • 9. Atmosphere The Phosphorus cycle has no involvement in the atmosphere, because it does not naturally form in gaseous forms.
  • 10. Hydrosphere  Phosphorous usually enters the hydrosphere by the phosphate salt rocks found on the ocean floor. As the water erodes them away, the phosphorous escapes.  Marine organisms take some of the phosphorus particles in order to live and grow.
  • 11. Lithosphere  Phosphorous is presented in the form of rocks and soil.  Phosphates go down to the bottom of the ocean and forms rocks over million of years.  Phosphates enters the soil when plant and animal matter decompose, the cycle repeats.
  • 12. Biosphere  Phosphorous is used for organisms to build DNA(Deoxyribonucleic acid), RNA(Ribonucleic acid), and ATP(Adenosine-triphosphate).
  • 13. Biosphere (continue)  Phosphate is in plants, which the herbivores eat, which the herbivores are eaten by the carnivores. Than phosphorus is released back into the soil by the herbivores and carnivores waste.
  • 14. Human Inputs to the Phosphorus Cycle  Human influences on the phosphate cycle come mainly from the introduction and use of commercial synthetic fertilizers.