6
Question
Which one of the following ecosystem types has the highest annual net primary productivity?
Which one of the following ecosystem types has the highest annual net primary productivity?
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Solution
The correct option is A Tropical rain forest
Tropical rain forests occur over equatorial or sub-equatorial regions with abundant warmth and rainfall (200-350 cms/ year) almost throughout the year. The forests are impenetrable with maximum diversity. Productivity is also maximum- 1200 Kcal per square meter per year as compared to 2000 Kcal per square meter per year for taiga. Standing crop biomass is highest. Large quantity of nutrients remain locked in vegetation. These forests occur in Congo basin of Africa and Amazon basin in South America.
Tropical rain forests occur over equatorial or sub-equatorial regions with abundant warmth and rainfall (200-350 cms/ year) almost throughout the year. The forests are impenetrable with maximum diversity. Productivity is also maximum- 1200 Kcal per square meter per year as compared to 2000 Kcal per square meter per year for taiga. Standing crop biomass is highest. Large quantity of nutrients remain locked in vegetation. These forests occur in Congo basin of Africa and Amazon basin in South America.
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