The area falls under humid zone, which is characterized by high precipitation. The high humidity and heavy rain fall are significant features of evergreen forest in this region. The amount of rainfall tapers towards the end of the rainy season but there is some amount of partially in every month. Maximum annual rainfall recorded is 3,640 mm. Maximum annual rainfall recorded comes to 3640 mm at Jeypore(in 1999). Temperature ranges maximum of 36 degree C and minimum 6 degree C. Maximum temperature recorded comes upto 35 degree(in 1990) and minimum temperature to 8 degree Celcius (in 1999).
Joypur Reserve Forest consists of 102 species orchids belonging to the 46 genera among them 13 species are Dendrobium. Assam Valley Wet Evergreen Forest (Depterocarpus) or more commonly known as upper Assam Depterocarpus mesua formation. It forms a part of the world heritage of tropical/ Sub-tropical wet evergreen forest, multistoried in structure and rich in biodiversity, more popularly known to a part of the media nowadays as Rain Forest. The forest is characterized with predominant species of Hollong reaching a height of 50 metres and girth up to 7 metres. Another Depterocarpus , viz. Mekai also occur in the top canopy along with Hollong over a limited locality specially and slightly higher elevation with good drainage. Other species which are found to occur in the top canopy sporadically are Sopa, Dhuna, Sam, Hollong, Jatuli, Borpat etc.
The middle storey is domineted by Nahar and Morhal.Other species found in this canopy are Hilikha, Jamuk, Selleng, Bandor-dima, Bhomora etc. Sometimes there occurs a third storey occupied by Dandracalamus hemiltonil(Kako),Bamboosa pallida(Dolo), Livingstonia Jenkinsolana(Jengopat) etc.
The name of some valuable trees found in this forest are as follows: -
Name Botanical Name
1. Ajar Lagrslroomia Speciosa
2. Bandardima Dysoxylum bincetariferum
3. Hilikha Terminalia chebula
4. Nahar Mesua ferrca
5. Holokh Terminalia myriocarpa
7. Sam Artocarpus chapasha
8. Sassi Aqeilatia agallecha
9. Tita sopa Michelia champaca
10. Hollong Dipterocarpus macracarpus
11. Bohot Artocarpus lokoocba
12. Raidang cane Calamus flagllum
13. Lajai cane Calamus floribundus
14. Segun Teetone grandis
Joypur Rainforest is home to a large number of rare and endangered species such as clouded leopard, sloth bear, leopard, tiger, elephant, Indian bison, sambar, slow loris, capped langurs, hoolock gibbons and flying squirrels. Among the birds are drongoes, pheasants, oriales, jacanas, wood ducks, eagles, owls, hornbills and minivests.
Animals found in the Joypur Rain Forest : -
Name Scientific Name
1. Elephant Elephas maximus
2. Leopard Panthera pardus
3. Hollock Gibbon Hylobates hoolock
4. Assamese Macaque
5. Hornbill Anthrococeros albirostris
6. Tree frog
7. Spotted Deer Axis axis
8. Flying Squrial
9. Cape langur Presbytis pileatus
10. Stump Tailed Macaque Macaca arctoides
11. Leopard cat Felis bengalensis
The rainforest festival, the first ever in India, is celebrated here. In a bid to boost eco-tourism, a three-day Joypur rainforest festival has been envisaged near the forest area from February 11 to 13. Activities include trekking, rafting, camping inside the forest, bird-watching, and elephant riding.
How To Reach Joypur Rain Forest :
1) Air : There is a Airport at Dibrugarh and it is connected by daily flight from Kolkata,Guwahati.
2) Rail : Naharkatia Railway Station is the nearest railhead.
3) Road : Bus rides are the cheapest mode of transport. There are city buses which covers the whole district. Most of them runs during day time only. Regular buses are available from Guwahati, Dibrugarh and Naharkatia.
To know more about Dibrugarh, please click here.