Page 159 - SST Class 07
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Natural Vegetation and
Wildlife
Natural vegetation refers to a plant community Factors affecting the natural vegetation and
which has grown naturally without human aid wildlife are as follows :
and has been left undisturbed by humans for a 1. Rainfall and Temperature
long time. 2. Relief
3. Soil and Its Fertility
4. Slope of Land
5. Sunshine
6. Drainage
FORESTS AND WILDFIFE
Forests are mainly evergreen
forests and deciduous forests.
Forests where trees remain green
throughout the year are called
evergreen forests. Trees shed their
leaves at different times of the
year, therefore, the forests look
green always. Those forests where
trees shed their leaves during a
fixed period (generally in the dry
Thus, cultivated crops, fruits and orchards form
season) are called deciduous
part of vegetation, but not natural vegetation.
forests.
The type and thickness of natural vegetation
varies from place to place because of the varia-
tion in these factors. Natural vegetation is gener-
Forests are like the lungs of the earth. At least 33% of
ally classified into three broad categories as the total land surface must be covered with forests.
follows :
Forests : Which grow where temperature and Types of Forests
rainfall are plentiful to support a tree cover. g Tropical Evergreen Forests
Depending upon these factors, dense and open
g Tropical Deciduous Forests
forests are grown.
g Temperate Evergreen Forests
Grasslands : Which grow in the region of
g Temperate Deciduous Forests
moderate rain.
g Mediterranean Forests
Desert Shrubs : Thorny shrubs and scrubs
grow in the dry regions. g Coniferous Forests
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