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| Last Updated:: 12/02/2016

Water Resource

Water Resource

             The predominant sources of water in Nagaland are surface water in rivers, streams, ponds and natural springs and subsurface water occurring as ground water. The water in these is mainly sustained by the heavy rainfall received in the state which is of the order of 2000-2500 mm, one of the highest amongst all states in India.

                 Nagaland has 4 main rivers, namely, Doyang, Dhansiri, Dhiku and Tizu10. These rivers are tributaries of Brahmaputra. Of these, the first flows towards the west through the Assam plains to join the mighty Brahmaputra; while Tizu river system flows towards the east and southeast and pours into the Irrawadi in Myanmar. The Barak river also drains into Nagaland, but in a negligible area when compared to Brahmaputra.  The catchment area of Brahmaputra in the state is 65% (10,803 sq. km) of the total area of 16,523 sq. km in Nagaland leading to a total water yield of 537000 million cu m .The catchment area of Barak River is only 728 sq. km which is around 4% of the total area. The ground water potential as compared to plains is low in Nagaland as physiographically, the state consists of narrow strip of hills running from east to south west and facing the Assam plains to its north and north east. The ground water resources are under developed and under used and are mostly developed in the Southern plain region of the state.

                  Though Nagaland is one of the wettest area’s in the country, but it is unable to meet its current water demand. Additionally frequent river meandering and river bank erosion is caused due to high runoff during monsoons leading to loss of fertile land and damages to infrastructure and agriculture along the river banks. With exacerbated impacts of climate change, managing water resources and infrastructure might become a further uphill task for the state. Hence, a water policy needs to be formulated so as to adopt various measures to accelerate ground water recharge and harnessing available water resources, both surface and underground water regime in the State.

                   The natural springs and even the traditional wells which earlier, profusely bore storage of water enough to quench the thirst and to drench the farmer’s fields are now gradually drying up due to human errors. In order to ameliorate the living conditions of the community, many Departments under Government of Nagaland has taken many comprehensive plan to protect such existing wetlands and also construct/create water bodies where-ever feasible to streamline water resources of the state-that include renovation of traditional/ancestral wells in the vicinity of the villages and other human habitation covering all the districts of Nagaland.