What makes an ecosystem have high net primary productivity?
A high primary productivity rate in the ecosystems is obtained when the physical factors (for instance: water, nutrients and climate) are favourable. The presence of some forms of secondary energy can also help to increase the primary productivity rate.
What is required for higher primary productivity?
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 ecosystem has the highest level of primary productivity?
The highest net primary productivity in terrestrial environments occurs in swamps and marshes and tropical rainforests; the lowest occurs in deserts.
What are the two main factors that affect primary productivity?
We focus on two major variables—light and nutrients—and their role in determining primary production.
What factors do you think contribute to such high productivity?
9. What factors do you think contribute to such high productivity? – They have the most amount of primary producers available and the least amount of consumers.
Which ecosystem would have the highest net primary production quizlet?
<Cold and dry> biomes have the highest net primary production. Water moves towards areas of <lower> salinity. Ecologists tend to divide the photic zone of lakes and ponds based on distance from the <bottom>.
What factors affect primary productivity?
Factors influencing the primary productivity are: –Temperature: It controls the enzyme-mediated dark reaction rate of photosynthesis. -Availability of nutrients and photosynthetic capacity of plants also influence the rate of primary productivity. -Species succession is also a regulating factor.
What limits the net primary production in aquatic ecosystems?
What limits the net primary production in aquatic ecosystems such as lakes and streams? The amount of light energy converted to chemical energy by an ecosystem’s autotrophs in a given time period is an ecosystem’s primary production, limits the net primary production in aquatic ecosystems such as lakes and streams.
What is primary productivity of an ecosystem?
primary productivity, in ecology, the rate at which energy is converted to organic substances by photosynthetic producers (photoautotrophs), which obtain energy and nutrients by harnessing sunlight, and chemosynthetic producers (chemoautotrophs), which obtain chemical energy through oxidation.
Which ecosystem produce the highest annual net primary productivity *?
Hence tropical rain forest ecosystem produces the highest annual net primary productivity(NPP).
Which ecosystem has the lowest net primary productivity?
The rate at which plants and other photosynthetic creatures generate organic substances in an ecosystem is referred to as primary productivity. Deserts, tundra, the open ocean, and the lakes and streams biome all have the lowest amounts of primary productivity. As a result, the right answer is ‘Open Ocean.
Which of the following ecosystem is most productive in terms of net primary productivity?
In terms of net primary productivity tropical rain forest is at the top followed by coral reef, easturies and desert and ocean.