Natural Vegetation — Syllabus
ICSE · Class 12 · Geography
What Natural Vegetation covers in ICSE Class 12 Geography: 4 topics, for the 2026-27 session. Part of the ICSE Class 12 Geography syllabus.
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Topics in Natural Vegetation
1. Basic Concepts and Terms
- Natural vegetation is plant life growing wild without human aid.
- If the earth is left alone for 25 years, it will become full of natural vegetation again.
- Virgin vegetation is the part of natural vegetation that has remained undisturbed by humans.
2. Classification of Indian Vegetation
- Indian forests are classified into six categories: Tropical Evergreen Forests, Tropical Deciduous or Monsoon Forests, Tropical Dry Forests, Arid Forests, Delta or Tidal Forests, and Mountainous Forest
- This classification depends on climate, soil, relief, and structure.
- Each forest type has a distinct rainfall range, plant species, and physical character.
3. Tropical Evergreen Forests
- Tropical Evergreen Forests are found in hot and humid areas of India.
- Average annual rainfall is above 200 cm.
- Relative humidity is more than 70%.
4. Tropical Deciduous or Monsoon Forests
- Tropical Deciduous or Monsoon Forests are found in areas receiving 100 to 200 cm of annual rainfall.
- They grow over the Sahyadris, the north-eastern parts of the Peninsula, the middle and lower Ganga valley, and along the foothills of the Himalayas in the Shiwaliks, the bhabar, and the tarai.
- Important trees are sal, teak, shisham, sandalwood, and khair.
Key Concepts
Central concept: Natural vegetation in India
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