Question
- What is primary productivity? In what units could you express productivity?
- Explain the differences between net primary productivity and gross primary productivity.
✓
Answer
- The rate at which solar radiation is trapped by producers for the synthesis of organic compound through photosynthesis is called primary productivity. It is expressed as $\mathrm{g} \mathrm{m}^{-2} \mathrm{y}^{-1}$ or kcal $\mathrm{m}^{-2}$ year ${ }^{-1}$.
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