Sambhar Lake

Environmentalists have raised concerns over a proposed 100 MW solar power project near Sambhar Lake, warning that even a relatively small installation could adversely affect the lake's fragile wetland ecosystem and disturb its rich birdlife.

Location and Physical Features

Sambhar Lake is situated in the districts of Jaipur and Nagaur in Rajasthan. It is the largest inland saltwater lake in India and represents one of the country's most important saline wetland ecosystems.

The lake is elliptical in shape, extending about 35.5 km in length, while its width varies between 3 km and 11 km. Covering an area of more than 200 square kilometres, the lake is surrounded by the Aravalli Hills, which form a natural backdrop to this unique landscape.

Drainage System

The lake receives water from five streams. Among them, the Rupangarh and Mendha rivers are the principal contributors, while the Samod, Khari, and Khandela streams provide additional inflows. These seasonal water sources play a crucial role in maintaining the lake's hydrological balance.

Ramsar Site Status

Recognising its ecological significance, Sambhar Lake was designated as a Ramsar Wetland of International Importance in 1990. It is one of India's most important wetlands for migratory birds and biodiversity conservation.

Salt Production and Economic Importance

Sambhar Lake is internationally known for its salt production. A 5-kilometre-long stone dam divides the lake into two sections. On the eastern side of the dam are extensive salt evaporation ponds, where salt has been produced continuously for nearly one thousand years.

The lake houses one of India's largest salt-producing units and contributes approximately 9% of the country's total salt production. The saline water, rich in minerals, is used to produce high-quality brine and salt on a large scale.

Unique Ecological Characteristics

The lake supports specialized communities of algae and halophilic (salt-loving) bacteria. These microorganisms create the lake's distinctive shades of pink, red, and orange, giving the water a striking appearance. They also influence the colour and quality of the salt harvested from the lake.

These microscopic organisms form the foundation of the lake's food chain and play a vital role in sustaining its ecological balance.

Fauna and Birdlife

Sambhar Lake is one of India's most important habitats for migratory birds. It serves as the largest wintering ground for flamingos in India outside the Rann of Kachchh.

Both the Lesser Flamingo (Phoeniconaias minor) and the Greater Flamingo (Phoenicopterus roseus) gather here in large numbers during the winter season.

Apart from flamingos, the lake attracts numerous migratory and resident bird species, including pelicans, common shelducks, redshanks, common sandpipers, black-winged stilts, Kentish plovers, ringed plovers, ruffs, and the globally threatened sociable lapwing.

Ecological Importance

Sambhar Lake is an ecologically sensitive wetland that supports rich biodiversity, sustains migratory bird populations, and contributes significantly to India's salt industry. Its unique saline ecosystem makes it one of the most important wetlands in South Asia.