India has high biological diversity and is one of the twelve most biologically diverse countries in the world, containing nearly 8% of the world's known species. It has over 47,000 plant species, 15,000 of which are flowering plants representing 6% of the world's total. India also has 81,000 known animal species and a variety of natural vegetation communities that have developed without human interference. A country's biological diversity is influenced by factors like climate, temperature, sunlight, precipitation, relief and soil type. Forests provide economic value from wood and minor products as well as environmental benefits like soil protection, water table recharge, and habitat for plants and animals. The IUCN classifies species as extinct, endangered, vulnerable,

1. Prepared by
Divya Das. S. S

3.  India has a rich biological diversity .
 It is one of the twelve mega bio-diversity
countries of the world.
 It has nearly 8% of the total number of
species in the world.
 Total no. of plant species in India- 47000
 Flowering plant species- 15000
 This account for 6% in the world’s total no. of flowering
plants.
 Non flowering plant species- 32000
 India occupies 10th place in the world & 4th in
Asia in plant diversity.
 Total no. of animal species- 81000

4.  Natural vegetation refers to a plant
community which has grown naturally
without any human aid and has been left
undisturbed by humans for a long time.
 Itis otherwise known as ‘Virgin
vegetation’.

5.  RELIEF
 LAND
 SOIL
 CLIMATE
 TEMPERATURE
 SUNLIGHT
 PRECIPITATION

6.  ECONOMIC VALUE:
 Wood is a major forest product.
 Other minor products are oil, gums & resins, tans &
dyes, paper & rayon, medicines from herbs & roots
etc.
 ENVIRONMENTAL VALUE:
 Checks soil erosion
 Increases the level of water table.
 Revitalizing the atmosphere.
 Increase the fertility of the soil.
 Modify the temperature,controls wind force & causes
rainfall.
 Natural habitat for plants & animals

7.  International Union for Conservation of
Nature & Natural Resources (IUCN) has
classified the species into various categories
as under:
 Extinct species
 Endangered species
 Vulnerable species
 Rare species
 Endemic species
 Normal species