Thursday, 21 April 2011
Salt Industries and their related anthropogenic activities in Marine Protected Area in the Gulf of Kachchh,Gujarat,India
Gujarat contributes about 70% of total salt production of the country. The tree districts around the Gulf, including Rann of kachchh have hundreds of salt manufacturing units, which produce nearly two third of the states salt production. The state government granted lease to 27 salt industries in Jamnagar, but lease for some industries was cancelled, in due course and present a total of 21 salt industries work in the intertidal areas (20 in MPA). Tata Chemicals Ltd has been allotted large non-forest area of 145.42 km2 in inter tidal zone. other 20 producers work in area of 10,325 ha. As per remote sensing data, about 165.7 km2 area of tidal zone in jamnagar is used for salt and disposal of concentrated brine together with its seepage from the saltpans and pipelines of the Tata Chemicals ltd. could pose a threat in the long run. It is estimated that 944 liter of bittern is produced in every one tonne of slat production. These salt industries produce about 2.7 million tonnes of salt annually, discharging about 2550 million liter of bittern. Tata Chemical alone produces 1.8 million tonnes of salt near Poshitra. There is no systematic and scientific work on impact of the salt industries on the coral reef ecosystem in the MPA. But the real fact that salt manufacturers have not taken measures to control and regulate discharge of higher saline water (Brine). Most of them do not have concern to the environment. In June 2001, about of one lakh mangrove trees died completely due to breakage of brine water from the pipe of Tata Chemicals Ltd. near Poshitra. Take care our gulf of Kachchh mangroves and coral reef ecosystem otherwise we loss India first Marine National Park biodiversity.