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Geomorphic Assessment and Mapping of Gullied Landscapes in the Eastern Margin of Thar Desert Using GIS & Remote Sensing

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Title Geomorphic Assessment and Mapping of Gullied Landscapes in the Eastern Margin of Thar Desert Using GIS & Remote Sensing
Not Available
 
Creator P.C.Moharana
 
Subject Gullied landscape, Geomorphic assessment, Eastern Thar
 
Description Interpretation of satellite images, thematic maps shows that this wetter part of the arid
region in western Rajasthan is more vulnerableto water erosion. The region has very little
problem of wind erosion but water erosion is dominant. The manifestation of water erosion is
visible in the form of gully networks along the obstacle dunes at the foothills of Aravallis.
Although both kinds of degradation occupy less than 5% area of the district, the potential of gully
erosion is high in the shallow intermontane plains of Udaipur vati, Khetri and Buhana tehils
of Jhunjhunun district
Gullies are typical erosional forms in semi-arid and arid landscapes all over the world. These are linked
either with soil/sediment erosion or as the most important sources of sediment. The eastern margin of
Thar Desert in India is a part of arid Rajasthan and is roughly co-terminus with the Aravalli hill ranges,
representing a comparatively wetter part of Thar Desert with an average annual rainfall of
approximately 400 mm. Alongwith favourable topography, slope and soil characteristics, the high
intensity rainfalls generate surface run-off cutting through the terrain to form fine network of rills and
gullies in the piedmont region of Aravalli hills. Such processes of erosion have significant bearing on the
water and sedimentation of vast alluvial plains in this region. In the paper, the eight gullied landscapes
occurring on alluvial plains and sand dunes have been studied with respect to their distribution, types
and morphological variation so as to understand their impact on the overall aspect of water erosion.
Not Available
 
Date 2019-05-20T07:29:52Z
2019-05-20T07:29:52Z
2012-01-01
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/19740
 
Language English
 
Relation Not Available;
 
Publisher Indian National Cartographic Association