Tuesday, September 28, 2010

The Terai Region .


                 The country comprises different types of terrains , running parallel to each other from east to west with various heights. Terai lies in the southern part of the country , which joins the Indian frontier . It contains a part of alluvial plain of the Ganges. Previously it was the famous swampy and malarious lowlands with rich deposition of alluvial soil. That is why, the people  from Pahad (Mahabharat and Sub-Himalayan regions ) did not venture to come down to Terai .But due to nature’s dynamic role the swampiness  slowly vanished and dryness came up and now it has become valuable  land as well for the forest as for agriculture . As the dangerous malarial effect was eradicated by the continuous  efforts of the Government, now , due to availability of  valuable soil and favorable conditions . the land has become more vulnerable to agricultural practices and many more people from the hills and mountainous regions have come down and settled there.
    The average width of this belt is about 25 kms.and the average height is about 100 meters above the sea-level except the dun valleys which posses an average  elevation of 312 meters . This belt runs almost all the length o f the country except in the east of the Kali Gandaki. Where the length is about 65 kms and in the south of Deokhuri valley, where it is  about 100kms the Indian border joins directly to Siwalik. The agricultural practices in the cultivated land of this area confined to cereals, paddy millets, wheats and jutes.

                The Bhabar is the adjoining  area of Terai which starts right from the foot of the Siwalik hills and merges into Terai  in the south . Thought it also contains the same type of vegetation as Terai , there is a vast  difference in the composition  of soil and slopes . Bhabar  is a gently sloped area where as Terai is a flat plain . Terai contains alluvial soil with rich deposition of loam ,sandy  loam,silt,but there are no boulders and  gravels . whereas  Bhabar contains alluvaial soil with  many boulders . pebbles and vonglomerates whch are left as debris of the Siwaliks. And due to high porosity found in the soil the water percolates quickly down .That  is why,this area is found very dry, including the ricers and torrendts , with an exception of a few big rivers which have perennial water . But in rainy season these dry revers and torrents are also in floods. The pressure of  cultivaton in this area is bit less than in Terai. The average width of it is about 10 kms.

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