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Pak Studies Geography IGCSEprinted 86 · PDF 86
162 pagesrevision 46929
printed 86 · PDF 86
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Covers:
Punjab and Sindh (main agricultural zones).
Water Problems:
Waterlogging:
raised water table reduces oxygen for roots.
Salinity:
salt buildup on surface, decreases fertility.
Shortage:
uneven distribution, canal losses, overuse.
Solutions:
SCARP
(Salinity Control & Reclamation Project) – tube wells, drainage.
Lining canalswaterrotation(warabandi)
, efficient irrigation.
8. Modernisation and Green Revolution
Introduced in the 1960s–70s.
High-Yield Varieties (HYV)
ofwheat and rice.
Tube wells
increased irrigationarea.
Fertilisers and pesticides
boosted yields.
Mechanisation:
tractors, harvesters, threshers.
Benefits:
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