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Biogeochemical Cycle

Published on Nov 18, 2015

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PRESENTATION OUTLINE

1.

BIOGEOCHEMICAL CYCLE

  • Elements , chemical compounds and other forms of matter are passed from one organism
  • To another and from one part or the biosphere to another , and from one part of the ,
  • Biosphere to another through biogeochemical cycle
Photo by PNNL - Pacific Northwest National Laboratory
2.

EVAPORATION

  • The process by which water ,
  • Changes from liquid form to an ,
  • Atmospheric is called evaporation
Photo by revedavion.com
3.

TRANSPIRATION

  • Water can also enter the ,
  • Atmosphere by evaporation from the
  • Leaves of plants in the process of
  • Transpiration .
Photo by Nicola since 1972
4.

NUTRIENTS

  • All the chemical substances
  • That an organism to sustain life
  • Are its nutrients
Photo by JoelDeluxe
5.

NITROGEN FIXATION

  • Such bacteria which live in the soil ,
  • And on the roots of plants called legumes
  • Convert nitrogen gas , into ammonia in a process
  • Known as nitrogen fixation
Photo by D-Gernz
6.

DENITRIFICATON

  • other soil , bacteria convert
  • nitrates , into nitrates gas
  • in a process ccalled denitriation.
7.

PRIMARY PRODUCTIVITY

  • Is the rate at which organic
  • matter iss created by producers.
8.

LIMITING NUTRIENT

  • when an ecosystem is limited
  • by a single nutrient that is scarce,
  • or cycles very slowly ,this substance
  • is called a limiting nutrient .
Photo by Merrill College of Journalism Press Releases
9.

ALGAL BLOOM

  • immediate increase in the amount ,
  • of algae and other producers .
  • this result is called an algal , bloom .
Photo by jikatu

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