487718
Descrição
Mapa Mental por prettypriyaz, atualizado more than 1 year ago
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Criado por prettypriyaz
quase 11 anos atrás
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Nutrient Cycles
- Nitrogen Cycle
- 1. Ammonification
- is the production of ammonia from organic ammonium
containing compounds such as urea which contains excessive
amino acids.
- is the production of ammonia from organic ammonium
containing compounds such as urea which contains excessive
amino acids.
- 2. Nitrification
- Free- living Nitrifying bacteria oxidise
ammonia to nitrite. This is then oxidise to
Nitrate ions. This process release energy.
- Free- living Nitrifying bacteria oxidise
ammonia to nitrite. This is then oxidise to
Nitrate ions. This process release energy.
- 3.Nitrogen Fixation
- Mutualistic Bacteria
- lives in the nodules of leguminous
plants.
- Bacteria obtain the carbohydrates
from the plants and Plants obtain
amino acids from the baceria
- Bacteria obtain the carbohydrates
from the plants and Plants obtain
amino acids from the baceria
- lives in the nodules of leguminous
plants.
- Nitrogen Fixing bacteria
- Convert nitrogen
gas into ammonia
- Convert nitrogen
gas into ammonia
- Mutualistic Bacteria
- Denitrification
- Anaerobic dentrifying bacteria convert soil nitrates
into Nitrogen gas
- Anaerobic dentrifying bacteria convert soil nitrates
into Nitrogen gas
- 1. Ammonification
- Carbon cycle
- Saprobiotic microganisms
- Extracellular Digestion
- They secrete enzymes on to the dead
organisms and break down into
simple molecules, which can then be
absorbed
- CO2 is released into the
atmosphere when the
microorganisms respire
- CO2 is released into the
atmosphere when the
microorganisms respire
- They secrete enzymes on to the dead
organisms and break down into
simple molecules, which can then be
absorbed
- Extracellular Digestion
- Saprobiotic microganisms
- Environmental
Consequences of
Fertilisers
- Eutrophication
- As the nitrate concentration increase,
plants and algae grow exponentially and
causes algal bloom. It forms a dense
surface layer and prevents light reaching to
lower depths. Light becomes a limiting
factor. So plants and algae dies.
- As the nitrate concentration increase,
plants and algae grow exponentially and
causes algal bloom. It forms a dense
surface layer and prevents light reaching to
lower depths. Light becomes a limiting
factor. So plants and algae dies.
- Eutrophication
- Fertilisers
- Organic Fertilisers
- Cheap
- Less Soluble
- improves soil structure by binding to soil
particles together and provides food for soil
organisms like earthworms
- improves soil structure by binding to soil
particles together and provides food for soil
organisms like earthworms
- Improves drainage &
aeration
- Less Soluble
- Cheap
- Inorganic Fertilisers
- Leaching
- Leaching
- Organic Fertilisers
- Greenhouse Gas
- CO2,
Methane,
Water
vapour
- Burning combustion
release CO2
- Clearing
- Less Photosynthetic organism so less
CO2 removed
- Less Photosynthetic organism so less
CO2 removed
- Burning combustion
release CO2
- CO2,
Methane,
Water
vapour
- Global warming
- an increase in the earth's average
temperature
- Deforestation increase CO2
conentration
- Deforestation increase CO2
conentration
- an increase in the earth's average
temperature
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