What factors are most critical in affecting the net primary productivity of a terrestrial ecosystem?
Net primary productivity varies among ecosystems and depends on many factors. These include solar energy input, temperature and moisture levels, carbon dioxide levels, nutrient availability, and community interactions (e.g., grazing by herbivores) 2.
Which of the following terrestrial ecosystem has the highest productivity?
Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes. Net primary productivity ranges from 2–3 kg m–2 y–1 or higher.
Which data is most useful to measure primary productivity in terrestrial ecosystems?
In terrestrial ecosystems, mass of carbon per unit area per year (g C m−2 yr−1) is most often used as the unit of measurement.
How does productivity increase in terrestrial ecosystems?
In general, terrestrial ecosystem net primary production increases with increasing: moisture availability as measured by evapotranspiration. length of growing season. temperature measured as mean annual temperature.
Where is primary productivity highest?
The highest net primary productivity in terrestrial environments occurs in swamps and marshes and tropical rainforests; the lowest occurs in deserts.
What factors increase primary productivity?
The factors affecting primary productivity are as complex as natural ecosystems are.
- Vascular Plants. Vascular plants are overwhelmingly responsible for most of the primary production on land. …
- Algae. …
- Light. …
- Water.
Which ecosystem has the highest primary productivity Mcq?
Tropical rainforests show the highest productivity in terrestrial ecosystems.
Which terrestrial or oceanic community have the greatest productivity?
In terrestrial ecosystems, primary productivity is highest in warm, wet places with plenty of sunlight, like tropical forest regions. In contrast, deserts have the lowest primary productivity. In marine ecosystems, primary productivity is highest in shallow, nutrient rich waters, such as coral reefs and algal beds.
What is primary productivity in environmental science?
Primary productivity is the process by which organisms make their own food from inorganic sources. The majority of primary producers are terrestrial plants and microbial life, such as algae.
What is the net primary productivity of terrestrial ecosystems?
From the level of primary producers onwards, only 10 % of energy is stored at the higher trophic level and 90 % is lost (as heat or in respiration etc. ).
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| Question | How much of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores? |
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| Type of Answer | Video, Text & Image |