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Cycles of Matter
Biogechemical cycle
Water Cycle
Nutrient Cycle
Nutrient Limitation
elements, chemical compounds + other forms of matter are passed fro one organism to the next
matter is not used up, its transformed
1. Primary productivity. -rate at which organic matter is created by producers. 2. limiting nutrient- 1 nutrient that limits ecosystem
Carbon Cycle
Nitrogen Cycle
1. Biological Process: photosynthesis, respiration, descomposition 2. Geochemical Process: release of CO2 by Volcanos 3. Mixed Biogeochemical Process: burial of remains conversion to coal 4. Human Activity- mining, burning
1. N- Fixation- nitrogen- amonia by leguimes (vegies) 2. Denitrification- amonia -> N gas 3. Phospherous Cycle: DNA / RNA - found in soil and rocks
