Question
Biology Question on Eco-System
Which one of the following ecosystem types has the highest annual net primary productivity ?
A
Tropical deciduous forest
B
Temperate evergreen forest
C
Temperate deciduous forest
D
Tropical rain forest
Answer
Tropical rain forest
Explanation
Solution
Net primary productivity is the total organic matter stored by producers per unit area per unit time. Gross primary productivity is the total organic matter synthesized by producers in the process of photosynthesis per unit area per unit time. So Net primary productivity = Gross productivity - Respiration and other losses. Tropical rain forests occur over equatorial/ subequatorial regions with abundant warmth and rainfall. Diversity and productivity are maximum as ! compared to other regions.