Jinsi ya kukokotoa Net Primary Productivity
Net Primary Productivity ni nini?
Net Primary Productivity (NPP) is the rate at which plants produce organic matter through photosynthesis minus the carbon they use in their own respiration. NPP = GPP − Ra.
Mwongozo wa Hatua kwa Hatua
- 1NPP = GPP − Ra (autotrophic respiration)
- 2In gC/m²/year or kcal/m²/year
Mifano Iliyotatuliwa
Ingizo
Tropical rainforest GPP 7000 · Ra 3500
Matokeo
NPP = 3,500 gC/m²/yr
Highest productivity ecosystem
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