The Tarai region of the Northern plains supports luxurious growth of natural vegetation and varied w...........

Geography World - Soil and Vegetation

The Tarai region of the Northern plains supports luxurious growth of natural vegetation and varied wild life population. This is because

Re-emerging rivers from Bhabhar flow in undemarcated channels here creating marshy and swampy conditions

All fertile coarse load is deposited at Tarai region after rivers re-emerge from Bhabarregion

TheTarai region is crossed by large Himalayan rivers which regularly deposit silt and clay Here

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Explanation:

Bhabar is a narrow belt ranging between8
10 km parallel to the Shiwalik foothills atthe
break-up of the slope. As a result of this,
the streams and rivers coming from the
mountainsdeposit heavy materials of rocks
and boulders, and at times, disappear in this
zone. South of theBhabar is theTarai
belt,with an approximate width of 10-
20 km wheremost of thestreams and rivers re-emerge
without having any properly demarcatedchannel, thereby, creating marshy andswampy conditions known as the Tarai. Thishas a luxurious growth of
natural vegetationand houses a varied wild life.
The Terai is crossed by the large perennial Himalayan rivers Yamuna, Ganges,Sarda,Karnali,Narayani
andKosithat have each builtalluvial fans
covering thousands of square kilometres below their exits from the hill