Page 76 - Health, Population and Environment Education 10

The plants, and animals present in mountain region cannot sustain in terai region and
those in terai region cannot remain in mountain region. The ecosystems of mountain,
hilly and terai region are described below:

Mountain Region

Hilly Region

Terai Region

Fig: 4
Various geographical regions of Nepal

Mountain Region

Mountain region lies in the northern part of
Nepal which covers 35% of total area of Nepal. It
is expanded from east to west in northern part of
Nepal. It has very difficult land topography and
extreme cold climate.
The altitude above which there is snowfall
everyday is called snow line. Due to difference in
altitude and latitude, snow line varies in eastern Fig: 5
and western part of Nepal. It starts in 5000 metres in eastern part and 4000 metres in
western part of Nepal. Due to land structure, climate and temperature, there is diversity
in ecosystem of mountain region and they have special features as well. Various types of
plants, animals, birds, insects, reptiles etc are present in mountain region

Ecosystem of Mountain Region and Its Related Aspects

Physical Aspects
Physical aspects include area, altitude, land topography, climate, temperature, cultivable
land, rainfall pattern, etc. Mountain region covers 35% of total area in Nepal and is situated
76 GREEN Health, Population and Environment Education Book-10