Wednesday, January 27, 2010

Coimbatore tank

Coimbatore tank is situated in Coimbatore with latitude of 100 58’ 48” and longitude of 760 55’14”. The capacity of the tank is 69.65MCft with the water spread area of 319.27 acres. It is having a registered ayacut of 1436 aces with the catchment area is 10.752 sq.km of free and 51.712 sq.km of combined area. The full tank level is 19.1 m.

The Noyyal river water is diverted to at the point of Coimbatore anaicut, then water is passing through the Coimbatore big tank. This tank is chain of water tank of river Noyyal.

The water spread area is 1.295 sq.km. the encroachment in this tank is nearly 10 acres covering 350 huts in the foreshore and in the bunds.

This tank is highly polluted with domestic waste and garbage. Cardiospermum halicacabum is seen on the hedges along the bunds of the tank. The herbaceous layer is enriched with the species such as Alternanthera pungens, Alternanthera sessilis, Cassia occidentalis, Commelina benghalensis, Cyanodon dactylon, Cyperes distans, Glinis lotoides, Heliotropium scabrum, Ocimum canum and Spermacoce hispida.

Astragantha longifolia, Lantana camara, Typha angustata and Xanthium indicum are the common shrubs in this place.

The tree flora incudes species such as Acacia nilotica, Cocos nucifera and Parkinsonia aculeate. These species are either cultivated or run wild.

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