Showing posts with label Water Crisis Free Download. Show all posts
Showing posts with label Water Crisis Free Download. Show all posts

Wednesday, 6 February 2013

Water Crisis
Introduction:
Water crisis is the term used to refer to the world’s water resources relative to the human demand.
Water is one resource that cannot be generated it can only be preserved.
Sources of water:
The sources of water can be divided into two categories.
Surface water
ground water
Surface water:
It includes three hydrological units:
Indus basin river
Closed basin kharan desert
Makran coastal basin................
Indus basin river:
It consists of mountain basins Indus plain, Karachi plains and desert areas of Sindh.
Its principle rivers and tributaries are Indus, Shyok, Gilgit, Astor, and Siran, Kabul joined by Jhelum, Chenab and Sutlej.
Makaran basin:
constitutes of streams of Malir, Hub, Porali, Kud, Hingol, Nai, Mashhai, Dasht, Nihing and Kech.
covers an area of 122,400 sq. km
main source of water is rainfall.
From this basin 0.78 maf of water.

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