Wetlands Atlas - Ministry of Environment and Forests

7.1.11 Dausa
Dausa is located between 26° 54' to 27° 15' North latitude and 76° 38' to 76° 54' East longitude, covering an
area of about 3429 sq.km The minimum and maximum temperature recorded is 3°C and 45°C respectively.
The normal annual rainfall is 548.2 mm. Large part of the district is covered by a thick mantle of soil, blown
sand and alluvium. The area is occupied by hill ranges and numerous isolated peaks These hills and peaks
belong to the Aravalli hill system .
Total 317 wetlands are mapped including 223 small wetlands (< 2.25 ha) with 11720 ha area. Rivers/ streams
with 8685 ha. contributed 74.10% to the total wetland area. The Tanks/Ponds with 1513 ha (12.91% area) is
the second major wetland category, followed by Reservoirs/Barrages with 1299 ha area i.e. 11.08 %. Thus,
the district is dominated by man-made wetlands.
Open water spread of the wetlands is significantly higher in Post-monsoon (1281 ha) than during Premonsoon
(485 ha), indicating the rainfall dependence of the wetlands in the state. Aquatic vegetation is
during Pre-monsoon season (22 ha). The qualitative turbidity of water is high in both the seasons.
Details of estimates of wetlands in Dausa are given in Table 16.
Table 16: Area estimates of wetlands in Dausa
Area in ha
Sr.
No.
Wettcode
Wetland Category
Number
of
Wetlands
Total
Wetland
Area
% of
wetland
area
Open Water
Postmonsoon
Area
Premonsoon
Area
1100 Inland Wetlands - Natural
1 1101 Lakes/Ponds - - - - -
2 1102 Ox-bow lakes/ Cut-off meanders - - - - -
3 1103 High altitude wetlands - - - - -
4 1104 Riverine wetlands - - - - -
5 1105 Waterlogged - - - - -
6 1106 River/Stream 25 8685 74.10 13 4
1200 Inland Wetlands -Man-made
7 1201 Reservoirs/Barrages 12 1299 11.08 492 350
8 1202 Tanks/Ponds 57 1513 12.91 776 131
9 1203 Waterlogged - - - - -
10 1204 Salt pans - - - - -
Sub-Total 94 11497 98.10 1281 485
Wetlands (