Are ecosystems least productive?

Deserts, tundra, and the deep ocean are the least productive ecosystems, typically having an energy fixation of less than 0.5 × 103 kilocalories per square meter per year (thousands of kcal/m2/yr; it takes one calorie to raise the temperature of one gram of water by 34°F [1°C] under standard conditions, and there are …

Is the most productive ecosystem?

Tropical rainforests show the highest productivity in terrestrial ecosystems.

Are all ecosystems equally productive?

When are all the ecosystems equally productive? All the ecosystems are equally productive under drought conditions. According to researches, under drought conditions, the tropical forests can use water as efficiently as deserts.

What are the most productive and least productive ecosystems?

Globally, patterns of primary productivity vary both spatially and temporally. The least productive ecosystems are those limited by heat energy and water like the deserts and the polar tundra. The most productive ecosystems are systems with high temperatures, plenty of water and lots of available soil nitrogen.

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Which of the following is least productive ecosystem?

Least productive ecosystem is desert and deep lake.

Which one of the following are most productive ecosystem except?

Solution: Answer: DSolution: Tropical rainforest shows the maximum diversity and also the maximum productivity.

What makes a productive ecosystem?

‘Productive’ ecosystems are defined as those that support a large total amount of living matter, from tiny microbes up to plants and animals. Scientists refer to this measurement of the amount of life present as an ecosystem’s ‘biomass’.

Which is productive ecosystem?

As a result of structural complexity, the highest gross primary productivity is found in coral reefs ecosystem. It is also known as the tropical rain forest. And the most productive ecosystems in the world are temperate and tropical forests. Desert and tundra are the least productive ecosystem.

Why different ecosystems have different 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 lowest average primary productivity?

The highest net primary productivity in terrestrial environments occurs in swamps and marshes and tropical rainforests; the lowest occurs in deserts.

What is the most productive biome?

Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes.

Which is the smallest ecosystem?

The Temperate Grassland is the smallest ecosystem in the world as well as on earth. The area of this grassland occupied by Tundra.

Which of the following is least productive ecosystem desert?

Very low productivity is present in deserts and arctic regions. In oceans and other aquatic ecosystems, productivity is limited by light as it decreases with depth. But on a global basis, aquatic ecosystems occupy more space on earth than any other biome and have good productivity in surface layers, which are euphotic.

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Is grassland least productive ecosystem?

Correct answer is option ‘D’.

Which of the following ecosystem is least productive in terms of NPP?

In terms of NPP per unit area the most productive ecosystems in the world are estuaries, swamps and marshes, followed by the tropical rain forests, coral reefs, temperate deciduous forests and grasslands. The tundras, open oceans and deserts are the least productive.