Arrange the following ecosystems in increasing order of mean NPP (Tonn...
Net primary productivity (NPP) is the biomass or storage of energy by green plants. It is equal to the gross primary productivity minus loss due to respiration. The productivity generally increases from polar regions toward the tropics because of the increasing sunlight and temperature.
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Arrange the following ecosystems in increasing order of mean NPP (Tonn...
Understanding Net Primary Productivity (NPP)
Net Primary Productivity (NPP) is a critical ecological measure reflecting the amount of organic material produced by photosynthetic organisms in an ecosystem. Different ecosystems exhibit varying NPP levels due to climatic conditions, biodiversity, and types of vegetation.
Mean NPP of Different Ecosystems
1. Tropical Deciduous Forest (1)
- NPP: Moderate
- Characterized by seasonal leaf shedding; productivity decreases in dry seasons.
2. Temperate Coniferous Forest (2)
- NPP: Lower than deciduous forests
- Dominated by coniferous trees; lower light penetration and slower growth rates.
3. Tropical Rain Forest (3)
- NPP: Highest
- Rich biodiversity and constant warm, humid conditions promote high productivity year-round.
4. Temperate Deciduous Forest (4)
- NPP: Higher than temperate coniferous but lower than tropical rain forests
- Rich in biodiversity with distinct seasons, allowing for significant seasonal productivity.
Arranging Ecosystems by Increasing NPP
Based on the above characteristics, the ecosystems can be arranged in increasing order of mean NPP as follows:
- Temperate Coniferous Forest (2)
- Temperate Deciduous Forest (4)
- Tropical Deciduous Forest (1)
- Tropical Rain Forest (3)
Conclusion
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