The Netravati is a small perennial
rain-fed river originating in the Western Ghats of India. This 100 kilometer
long river is the life line for the district of Dakshina Kannada and the city
of Mangalore. The Netravati flows travel
nearly half of its length in the Western Ghats and only the remaining half is
available for human activities. Along this stretch, human activity has already
caused considerable damage to this river’s biodiversity through the
construction of numerous dams and a mini hydel power plant. Off late there has
been some about of political gossip and tension regarding the now proposed
river diversion project. Below, I have tried to reason out the potential
damages that Mangaloreans would incur if the project is executed.
The diversion of the Netravati to
Kolar would lead to an alteration of the natural flow regime of the river. This
change in the flow regime would lead unexpected increase / decrease in the flow
and changes in the seasonality / timing of flow events – all of which would
lead to both drought like scenarios and sudden flash floods. Any reduction in
river run off would lead to influx of sea water into the river system causing
salination of the existing water sources.
The Netravati flows through the
scenic Western Ghats bio reserve. Any alteration to the flow would lead to
unimaginable loss and damage to this natural beauty. The destruction of this biodiversity
would be directly reflected on the local climate and more importantly on the
local health.
The Netravati joins the Arabian Sea
at Mangalore through an estuary. Estuaries are precious ecosystems that aid in
the breeding of fish. A reduction in the river run off into the sea would lead
to changes in the estuarine structure causing tremendous harm to marine life.
Mangalore would directly be affected in the form of reduced fish yield.
The entire survival of the
ecology of Mangalore revolves around this river. The flora and fauna are all
heavily dependent on the habitat and support provided by the Netravati. The
local population too is heavily dependent on this river. Industries like MRPL
and the new MSEZ are too a part of the demand group. This river may be perennial
but is not a surplus river. Every year the people of Mangalore face a difficult
situation in summer due to reduced river flow. At times the situation turns so
grim that water supply to major industries is shut down to ensure that the
people have water to quench their thirsts.
The proposed diversion of the
Netravati is on the assumptions that the river has surplus water. The very idea that
the river is water rich is farce. The proposal is unscientific and unethical.
The river diversion needs to be stopped.
Kindly voice your opinion on the
issue by posting a comment below.
I completely agree. Is there a proper research done before proposing this plan? Has the government conducted an environmental assessment? A lot needs to be answered by the government. We have 3 ministers from our area and a host of MLAs all in the ruling party. I hope they do some good work regarding this.
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