Natural Vegetation and Wildlife — Core Concepts
Core Concepts
India's natural vegetation includes five major types: Tropical Rainforests in high rainfall areas (Western Ghats, Northeast), Tropical Deciduous Forests (largest coverage, includes teak and sal forests), Thorn Forests in arid regions, Montane Forests in hills with altitude-based zonation, and Mangrove Forests in coastal areas.
The country hosts 8% of global biodiversity on 2.4% of world's land area, with four biodiversity hotspots: Western Ghats, Eastern Himalayas, Indo-Burma, and Sundaland. India's protected area network includes 106 National Parks, 566 Wildlife Sanctuaries, and 18 Biosphere Reserves covering 5.
06% of geographical area. Major conservation programs include Project Tiger (53 reserves, tiger population increased from 1,411 to 2,967), Project Elephant (32 reserves), and species-specific programs.
The Wildlife Protection Act 1972 provides legal framework with six protection schedules, while Forest Conservation Act 1980 regulates forest land diversion. Key threats include habitat loss, poaching, human-wildlife conflict, pollution, climate change, and invasive species.
Recent developments include cheetah reintroduction at Kuno, new Ramsar sites, and emphasis on wildlife corridors and community-based conservation.
Important Differences
vs Climate of India
| Aspect | This Topic | Climate of India |
|---|---|---|
| Relationship | Vegetation patterns directly determined by climate, especially rainfall and temperature | Climate creates the environmental conditions that determine vegetation distribution |
| Monsoon Impact | Monsoon rainfall determines forest types - evergreen (>200cm), deciduous (50-200cm), thorn (<50cm) | Southwest monsoon brings 75% of annual rainfall, creating distinct wet and dry seasons |
| Regional Variation | Vegetation changes from rainforests in Western Ghats to desert scrub in Rajasthan | Climate varies from tropical wet in Kerala to arid in Rajasthan |
| Seasonal Changes | Deciduous trees shed leaves during dry season, evergreen forests remain green year-round | Distinct seasons - monsoon, post-monsoon, winter, summer affect vegetation cycles |
| Human Impact | Deforestation and land use change alter local climate patterns | Climate change affects monsoon patterns and extreme weather events |
vs Drainage System
| Aspect | This Topic | Drainage System |
|---|---|---|
| Ecosystem Services | Forests regulate water cycle, prevent soil erosion, and maintain watershed health | Rivers provide water for irrigation, hydropower, and support riparian ecosystems |
| Biodiversity Support | Forests provide habitat for terrestrial wildlife and maintain ecological corridors | Rivers support aquatic biodiversity and create wetland ecosystems |
| Human Interaction | Forests face pressure from agriculture, urbanization, and resource extraction | Rivers face pollution, over-extraction, and dam construction impacts |
| Conservation Approach | Protected through national parks, wildlife sanctuaries, and forest conservation laws | Protected through river conservation programs, wetland protection, and pollution control |
| Climate Impact | Forests act as carbon sinks and influence local climate patterns | Rivers transport sediments, nutrients, and influence regional climate through evaporation |