The “Dal lake” once a pure water lake has turned into
polluted water body with decreased size, foul smell and a
breeding ground for infections. What are causes and
consequences of its pollution? Also suggest measures to
prevent its degradation?
Answers
Dal is a lake in Srinagar, the summer capital of Jammu and Kashmir, India. It is an urban lake, which is the second largest in the union territory of Jammu and Kashmir. It is integral to tourism and recreation in Kashmir and is named the "Lake of Flowers",[1] "Jewel in the crown of Kashmir"[2] or "Srinagar's Jewel".[3] The lake is also an important source for commercial operations in fishing and water plant harvesting.[4][5][6]
Dal Lake
Dal Lake Hazratbal Srinagar.jpg
View of Dal lake and Char Chinar
Dal Lake is located in Jammu and KashmirDal LakeDal Lake
Location
Srinagar, Jammu and Kashmir, India
Coordinates
34°07′N 74°52′E
Lake type
Warm monomictic
Primary inflows
Inflow Channel Telbal Nallah from Marsar lake −291.9 million cubic metres
Primary outflows
Regulated, two channels (Dal Gate and Nalla Amir) – 275.6 million cubic metres
Catchment area
316 square kilometres (122 sq mi)
Basin countries
India India
Max. length
7.44 km (4.62 mi)
Max. width
3.5 km (2.2 mi)
Surface area
18–22 square kilometres (6.9–8.5 sq mi)
Average depth
1.42 metres (4.7 ft)
Max. depth
6 m (20 ft)
Water volume
983 million cubic metres (34.7×109 cu ft)
Residence time
22.16 days
Shore length1
15.5 km (9.6 mi)
Surface elevation
1,583 m (5,194 ft)
Frozen
During severe winter
Islands
Two (Sona Lank and Rupa Lank (or Char Chinar))
Settlements
Hazratbal, Srinagar
1 Shore length is not a well-defined measure.
The shore line of the lake, about 15.5 kilometres (9.6 mi), is encompassed by a boulevard lined with Mughal era gardens, parks, houseboats and hotels. Scenic views of the lake can be witnessed from the shore line Mughal gardens, such as Shalimar Bagh and Nishat Bagh built during the reign of Mughal Emperor Jahangir[7] and from houseboats cruising along the lake in the colourful shikaras.[8] During the winter season, the temperature sometimes reaches −11 °C (12 °F), freezing the lake.[6][9]
The lake covers an area of 18 square kilometres (6.9 sq mi) and is part of a natural wetland which covers 21.1 square kilometres (8.1 sq mi), including its floating gardens. The floating gardens, known as "Rad" in Kashmiri, blossom with lotus flowers during July and August. The wetland is divided by causeways into four basins; Gagribal, Lokut Dal, Bod Dal and Nigeen (although Nigeen is also considered as an independent lake). Lokut-dal and Bod-dal each have an island in the centre, known as Rup Lank (or Char Chinari) and Sona Lank respectively.[9][10]
At present, the Dal and its Mughal gardens, Shalimar Bagh and the Nishat Bagh on its periphery are undergoing intensive restoration measures to fully address the serious eutrophication problems experienced by the lake. Massive investments of approximately US$275 million (₹ 11 billion) are being made by the Government of India to restore the lake to its original splendour