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Natural environment plays the principal role in the physical as well as socio-cultural adjustment of past and present human populations as evidenced by anthropological and material culture records. This is well-observed particularly among the aboriginal nations occupying intermittently pristine northern territories absent of major human migrations, ethnical gene-flows and associated historical inter-cultural exchanges. Specific natural factors linked to regional climate and geography, persisting for a certain time...

The Thar Desert is a part of the arid zone of north-western India and one of the major deserts in the subtropical belt, encompassing a total geographical area of 196 000 km2. Ongoing desertification with intense erosional actions removing unconsolidated surface cover to form desert pavement on one side, and co-acting mass sediment transfer with sand dunes formations on another side, as well as ground salinisation due to progressing regional aridification (mean annual precipitation 150?500 mm) pose major threats to...