Assam and surrounding regions have to be a paradise for the
nature lovers and researchers. The region's uniqe natural settings,
hydro-geomorphic environment and biodiversity have no parallel in Asia.
Within a eighty to hundred kilometres of journey by land, one can travel from a
flat flood plain with tropical rainforests and wet paddy fields to mountainous
regions of Alpine-Himalayan climatic conditions at very high altitude.
Geomorphic studies conclude that the Brahmaputra, the life-line of Assam is a
paleo-river; older than the Himalayas. The river with steep gorges and rapids
in Arunachal Pradesh entering Assam, becomes a braided river (at times 16 km
wide) and with tributaries, creates a flood plain (Brahmaputra Valley: 80-100
km wide, 1000 km long). The hills of Karbi Anglong, North Cachar and those in
and close to Guwahati (also Khasi-Garo Hills) now eroded and dissected are
originally parts of the South Indian Plateau system. In the south, the Barak
originating in the Barail Range (Assam-Nagaland border), flows through the
Cachar district with a 40-50km wide valley and confluences with the Brahmaputra
in Bangladesh.
Assam
is one of the richest biodiversity zones in the world and consists of tropical
rainforests, deciduous forests, riverine grasslands, bamboo orchards and
numerous wetland ecosystems; Many are now protected as national parks and
reserved forests. The Kaziranga, home of the rare Rhinoceros, and Manas are two UNESCO
World Heritage Sites in Assam. Pabitora has the highest density of rhinos.
The reserve forests of Joypur, Upper Dihing and Dirak are a stretch of pristine
rainforests. The region is the last refuge for numerous other endangered
species such as Golden Langur or Honali Bandor (Trachypithecus geei),
White-winged Wood Duck or Deohanh (Cairina scutulata), Bengal Florican or
Ulumora, Black-breasted Parrotbill, Pygmy Hog or Nolgahori, Greater Adjutant or
Hargila, Hispid Hare or Khagorikota, Slow Loris or Lajuki Bandor, Swamp
Francolin or Koira and so on. Some other endangered species with significant
population in Assam are Tiger, Elephant, Hoolock Gibbon, Jerdon's Babbler and
so on. Assam is also known for orchids the more well known being the foxtail or
kopou and blue vanda or bhatou.


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