Examkin

Question

Difficulty: Very hardSoils, Natural Vegetation, and Agriculture in India

Arrange the following natural vegetation types of India in ascending order based on their typical annual rainfall requirements:

  1. 1Tropical Thorn and Scrub Forests
  2. 2Tropical Dry Deciduous Forests
  3. 3Tropical Moist Deciduous Forests
  4. 4Tropical Wet Evergreen Forests

Answer

The correct ascending order based on annual rainfall requirements is: Tropical Thorn and Scrub Forests (< 50 cm50\text{ cm}), Tropical Dry Deciduous Forests (70–100 cm70\text{--}100\text{ cm}), Tropical Moist Deciduous Forests (100–200 cm100\text{--}200\text{ cm}), and Tropical Wet Evergreen Forests (> 250 cm250\text{ cm}).
In Indian physical geography, annual rainfall is the primary determinant of natural vegetation boundaries. The rainfall thresholds increase from Tropical Thorn and Scrub Forests (<50 cm< 50\text{ cm}) to Tropical Dry Deciduous Forests (70–100 cm70\text{--}100\text{ cm}), followed by Tropical Moist Deciduous Forests (100–200 cm100\text{--}200\text{ cm}), and finally Tropical Wet Evergreen Forests (>250 cm> 250\text{ cm}).

Step-by-Step Solution

1
Identify the minimum annual rainfall threshold for Tropical Thorn and Scrub Forests.
Rainfall threshold is less than 50 cm50\text{ cm} per year.
Vegetation consists of acacias, euphorbias, and cacti adapted to low moisture levels.
2
Determine the climatic rainfall range for Tropical Dry Deciduous Forests.
Rainfall range is between 70 cm70\text{ cm} and 100 cm100\text{ cm} per year.
These forests shed leaves during dry seasons and represent an intermediate moisture regime.
3
Determine the precipitation requirement for Tropical Moist Deciduous Forests.
Rainfall range is between 100 cm100\text{ cm} and 200 cm200\text{ cm} per year.
Dominant species like Teak and Sal require moderate to heavy monsoon rainfall.
4
Identify the rainfall requirement for Tropical Wet Evergreen Forests.
Rainfall threshold exceeds 250 cm250\text{ cm} per year with high relative humidity.
Dense multi-layered canopy forests require continuous moisture availability.
5
Sequence the items from the lowest to highest precipitation threshold.
Sequence: Tropical Thorn and Scrub Forests →\rightarrow Tropical Dry Deciduous Forests →\rightarrow Tropical Moist Deciduous Forests →\rightarrow Tropical Wet Evergreen Forests.
Precipitation increases systematically across these forest ecological zones.

Key Concept

Climatic Control of Natural Vegetation Distribution in India
Rate this question

Topics

Soils, Natural Vegetation, and Agriculture in India

More questions from this topic