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Tropical Forests of India

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India’s natural vegetation is classified based on climate, rainfall, and altitude. The major forest types as per Champion and Seth’s classification are covered below.

Tropical Evergreen Forests

Distribution

  • Areas receiving >200 cm annual rainfall
  • Western Ghats (Maharashtra to Kerala)
  • North-eastern India (Assam, Meghalaya, Arunachal Pradesh)
  • Andaman and Nicobar Islands

Characteristics

  • Dense, multi-layered canopy — trees of varying heights form a continuous cover
  • No seasonal leaf fall — trees remain green throughout the year
  • Great biodiversity — hundreds of tree species, ferns, orchids, lianas
  • Rich undergrowth — climbers, epiphytes, mosses
  • Tall height: Trees reach 45-60 meters

Major Species

Region Species
Western Ghats Rosewood, ebony, mahogany, teak, jackfruit, bamboo
NE India Dipterocarpus (Hollong — State tree of Assam), mesua, jarul
Andaman Gurjan, padauk, coconuts, areca nut

Economic Importance

  • Hardwoods — valuable timber (rosewood, ebony, mahogany)
  • Medicinal plants (Neem, tulsi, ashwagandha)
  • Non-timber forest products (honey, resins, latex)
  • Watershed protection

Tropical Semi-Evergreen Forests

  • Transition zone between evergreen and deciduous forests
  • Annual rainfall: 150-200 cm
  • Found on western slopes of Western Ghats, lower Assam, parts of Odisha
  • Fewer species than evergreen; some seasonal leaf fall
  • Key species: white cedar, terminalia, hopea, laurel

Tropical Moist Deciduous Forests

Distribution

  • Rainfall: 100-200 cm annually
  • Largest forest type in India — covers most of the country
  • Central India: MP, Chhattisgarh, Odisha, Maharashtra
  • Eastern slopes of Western Ghats
  • Shivalik Himalayas

Characteristics

  • Seasonal leaf fall — trees shed leaves during dry season (March-April)
  • Two sub-types:
    • Moist deciduous: Closed canopy; moderate undergrowth; northeast, eastern slopes of Western Ghats
    • Dry deciduous: More open canopy; grasses in undergrowth; central India, Deccan plateau

Major Species

Sub-type Species
Moist deciduous Teak (Tectona grandis) — India’s most valuable timber; sal, shisham (sissoo), sandalwood, mango, mahua
Dry deciduous Teak, tendu (diospyros), axlewood, babul, khair, palas (flame of the forest)

Economic Importance

  • Teak — premier timber wood for furniture and shipbuilding
  • Sal — construction and railway sleepers
  • Sandalwood — carving, essential oils, incense
  • Tendu leaves — beedi (Indian cigarette) wrapping
  • Mahua flowers — liquor and food; seeds for oil

Tropical Dry Deciduous Forests

  • Rainfall: 70-100 cm
  • Found in rain-shadow areas of Western Ghats, south-eastern Rajasthan, parts of MP, UP, Bihar
  • Open canopy; grasses common in understory
  • Trees shed leaves in summer
  • Key species: teak, babul, khair, neem, palas, tendu
  • Large areas converted to agriculture due to accessible terrain

Forest Cover in India (2021 ISFR)

Forest Type Area (sq km) % of Forest Cover
Tropical Moist Deciduous 2,50,000+ ~37%
Tropical Dry Deciduous 1,83,000+ ~27%
Tropical Thorn 12,000+ 2-3%
Montane Temperate 76,000+ ~11%
Sub-tropical 47,000+ ~7%
Alpine 92,000+ ~14%
  • Total forest cover: ~7,13,789 sq km (21.67% of India’s area)
  • Goal: Achieve 33% forest cover as per National Forest Policy, 1988