What makes an ecosystem highly productive?
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.
How do you measure productivity in an ecosystem?
Primary productivity is usually determined by measuring the uptake of carbon dioxide or the output of oxygen. Production rates are usually expressed as grams of organic carbon per unit area per unit time.
What ecosystem is most productive?
The most productive ecosystems are fertile estuaries and marshes, coral reefs, terrestrial vegetation on moist alluvial deposits, and intensive agriculture, which can have productivities of 10-25 × 103 kcal/m2/yr.
What is an example of an ecosystem with high primary productivity?
The highest net primary productivity in terrestrial environments occurs in swamps and marshes and tropical rainforests; the lowest occurs in deserts.
What 3 ecosystems have the lowest productivity?
The biomes with the lowest levels of primary productivity include deserts, the tundra, the open ocean, and the lakes and streams biome.
Which 3 ecosystems have the highest productivity?
The world’s ecosystems vary tremendously in productivity, as illustrated in the following figures. In terms of NPP per unit area, the most productive systems are estuaries, swamps and marshes, tropical rain forests, and temperate rain forests (see Figure 4).
What are the method of measuring productivity?
Productivity is a measure of the efficiency of a machine, factory or person in converting inputs into useful outputs. To calculate productivity, you divide the average output per period by the costs incurred or the resources, such as personnel, consumed in that period.
What are three ways to measure primary productivity?
Primary productivity can be measured from the amount of oxygen consumed by a volume of water in a fixed period of time; water for which productivity is to be determined is enclosed in sealed white and dark bottles (bottle painted dark so light would not enter).
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.
What ecosystems are the least productive in the world?
What ecosystems are the least productive in the world? Tundras and extreme deserts.