The diversity of plants and animal provide us food, fuel, medicine, shelter and other essentials without which we cannot live. Bio-diversity is a short form of biological diversity. In simple terms, bio-diversity is the total number of genes, species and ecosystems of a region. It includes (i) genetic diversity (ii) species diversity and (iii) eco-system diversity.
Due to its unique location, India is endowed with rich bio-diversity.
Natural Vegetation of India
1. Tropical Evergreen
- More than 200 cm rainfall.
- Trees do not shed their leaves in any particular season.
- Dense and mixed vegetation.
- Height of tress is 60 metres or more.
2. Tropical Decidious
- 75 to 200 cm rainfall.
- Moist widespread.
- Divided into moist and dry.
3. Thorn Forest
- Less tan 75 cm rainfall.
- Dry climate.
- Long roots, thick and shiny small leaves.
4. Tidal Forest
- Accumulate Water in the deltas
- Branches of trees remain submerged in water
- Flourish in fresh and salt water
5. Himalayan Vegetation
The vegetation changes according to altitude. The decreasing temperature with increasing altitude lead to varied types of vegetation.