Vegetation distribution across India is primarily determined by rainfall thresholds. Arrange the following natural vegetation types in ascending order of their average annual rainfall requirements:
- 1Tropical Thorn Forests
- 2Tropical Dry Deciduous Forests
- 3Tropical Moist Deciduous Forests
- 4Tropical Wet Evergreen Forests
Answer
The correct ascending order of average annual rainfall requirements is: Tropical Thorn Forests (<50 cm), Tropical Dry Deciduous Forests (70–100 cm), Tropical Moist Deciduous Forests (100–200 cm), and Tropical Wet Evergreen Forests (>200 cm).
The natural vegetation of India varies directly with total annual rainfall. Tropical Thorn Forests require <50 cm, Tropical Dry Deciduous Forests require 70–100 cm, Tropical Moist Deciduous Forests require 100–200 cm, and Tropical Wet Evergreen Forests require >200 cm. Ordering from lowest to highest rainfall yields Tropical Thorn Forests, Tropical Dry Deciduous Forests, Tropical Moist Deciduous Forests, and Tropical Wet Evergreen Forests.
Step-by-Step Solution
Key Concept
Climatic thresholds and precipitation requirements for natural vegetation belts in India.