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MADE BY
SAADAN ASHRAF
0-2

 A natural resource (renewable)
 DAMS AND BARRAGES ARE CONSTRUCTED FOR STORAGE
 Results in the chain of hydrological cycle
INTRODUCTION
 IRRIGATION THROUGH DIFFERENT TECHNIQUES
 USED FOR DOMESTIC PURPOSES (DRINKING, COOKING ETC)
 DIFFERENT INDUSTRIES USE (PHARMACEUTICALS, TANNING, FOOD,
THERMAL POWER PLANTS)
 HEP IS PRODUCED
 CHEMICAL INDUSTRY ALSO USES
USES/IMPORTANCE
 ARTIFICIAL SUPPLY OF WATER IS CALLED IRRIGTAION
 OLD METHODS ARE : SHADUF, CHARSA, PERSIAN WHEEL, KAREZ,
INUNDATION CANALS AND TANK IRRIGATION
• SHADUF USES A POLE WITH WEIGHT ATTACHED TO A BUCKET
• CHARSA USES ANIMAL POWER TO OBTAIN WATER
• PERSIAN WHEEL COMPRISES OF 2 WHEELS; ONE IS HORIZONTAL WHILE
THE OTHER IS VERTTICAL; WATER IS PULLED FROM A WELL
• KAREZ IS PRACTISED BY DIGGING UNDERGROUND CANALS TO COLLECT
WATER FROM FOOTHILLS OF MOUNTAINS
• INUNDATION CANALS ARE LINKED WITH RIVERS(OVERFLOW)
• TANKS ARE BUILT TO COLLECT RAINFALL IN LOWER SINDH
IRRIGATION

 MODERN METHODS INCLUDE: PERENNIAL CANALS, TUBEWELLS,
SPRINKLERS, TANKERS
• PERENNIAL CANALS ARE LINKED TO DAMS AND BARRAGES TO
PROVIDE WATER ALLROUND THE YEAR
• TUBEWELLS USE MOTORS TO PUMP WATER UPWARDS FROM 92
METRES
• SPRINKLERS ARE CONNECTED TO WATER SUPPLY PIPES; EQUALLY
DISTRIBUTE WATER; NOT USED MUCH DUE TO EXPENSIVENESS
• TANKERS COLLECT WATER FROM LAKES AND PROVIDE TO HOUSES
AND FIELDS
IRRIGATION

 IN 1948, INDIA THREATENED TO STOP SUPPLY OF RAVI AND
SUTLEJ RIVER; IN 1960, TREATY WAS SIGNED AND PAKISTAN
WAS GIVEN CONTROL OF INDUS, JHELUM AND CHENAB
RIVERS
 MANGLA AND TARBELA DAMS WERE BUILT UNDER THIS
TREATY
INDUS WATER TREATY

 2 RIVER SYSTEMS: INDUS AND BALOCHISTAN
 INDUS IS THE LARGEST RIVER
 INDUS SYSTEM IS AT EAST; SUTLEJ, RAVI, CHENAB & JHELUM ARE
MAIN TRIBUTARIES
 IN SUMMER, MEAN MONTHLY DISCHARGE OF RIVER IS HIGH DUE TO
MELTING OF SNOW
RIVER SYSTEMS

 WESTERN INDUS OR BALOCHISTAN RIVERS ARE SWAT, KABUL,
TOCHI, GOMAL AND KURRAM
 THEY ARE MUCH SMALLER THAN EASTERN INDUS
 THEY ONLY FLOW DURING MONSOON(JULY TO SEPT)
 LITTLE VALUE FOR IRRIGATION
RIVER SYSTEMS

 ONLY 2 LARGE DAMS IN PAKISTAN (+15 METRES TALL): TARBELA AND
MANGLA
 BARRAGES CAN BE BUILT ON FLAT LAND
 9 BARRAGES: CHASHMA, GUDDU, TAUNSA , MARALA, RASUL,
QADIRABAD, JINNAH, SUKKUR AND KOTRI.
 ALL ARE ON RIVER INDUS EXCEPT QADIRABAD AND MARALA (BOTH
ON CHENAB)
DAMS AND
BARRAGES

 FINE PARTICLES OF SOIL ARE CALLED SILT
 SILT FROM GLACIERS AND THROUGH DEFORESTATION
BLOCKS CANALS AND DAMS WHICH RESULTS IN LOW
PRODUCTION OF HEP
 IT CAN BE CONTROLLED BY: INSTALLATION OF SILT TRAPS,
AFFORESTATION AND CEMENTATION OF CANALS FOR EASIER
CLEANING
SILTATION

 THE RISE OF WATER TABLE TO SURFACE IS WATERLOGGING AND
APPEARANCE OF SALTY PATCHES IS CALLED SALINITY
 IT CAN BE CONTROLLED BY: LINING OF CANALS, USAGE WHEN
NEEDED OF CANALS, PLANTING OF EUCALYPTUS TREES TO
ABSORB WATER AND USAGE OF TUBEWELLS TO LOWER WATER
TABLE
 SCARP (SALINITY CONTROL AND RECLAMATION PROJECT) WAS SET
UP IN 1959 TO SOLVE THIS issue
Waterlogging
salinity

 Dumping of industrial and agricultural waste causes water
pollution
 Waste flows in drains and passes from rivers to sea
 Oil seepage from ships also causes great pollution in Karachi
Water pollution
o level pakistan studies p2 water

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o level pakistan studies p2 water

  • 2.   A natural resource (renewable)  DAMS AND BARRAGES ARE CONSTRUCTED FOR STORAGE  Results in the chain of hydrological cycle INTRODUCTION
  • 3.  IRRIGATION THROUGH DIFFERENT TECHNIQUES  USED FOR DOMESTIC PURPOSES (DRINKING, COOKING ETC)  DIFFERENT INDUSTRIES USE (PHARMACEUTICALS, TANNING, FOOD, THERMAL POWER PLANTS)  HEP IS PRODUCED  CHEMICAL INDUSTRY ALSO USES USES/IMPORTANCE
  • 4.  ARTIFICIAL SUPPLY OF WATER IS CALLED IRRIGTAION  OLD METHODS ARE : SHADUF, CHARSA, PERSIAN WHEEL, KAREZ, INUNDATION CANALS AND TANK IRRIGATION • SHADUF USES A POLE WITH WEIGHT ATTACHED TO A BUCKET • CHARSA USES ANIMAL POWER TO OBTAIN WATER • PERSIAN WHEEL COMPRISES OF 2 WHEELS; ONE IS HORIZONTAL WHILE THE OTHER IS VERTTICAL; WATER IS PULLED FROM A WELL • KAREZ IS PRACTISED BY DIGGING UNDERGROUND CANALS TO COLLECT WATER FROM FOOTHILLS OF MOUNTAINS • INUNDATION CANALS ARE LINKED WITH RIVERS(OVERFLOW) • TANKS ARE BUILT TO COLLECT RAINFALL IN LOWER SINDH IRRIGATION
  • 5.   MODERN METHODS INCLUDE: PERENNIAL CANALS, TUBEWELLS, SPRINKLERS, TANKERS • PERENNIAL CANALS ARE LINKED TO DAMS AND BARRAGES TO PROVIDE WATER ALLROUND THE YEAR • TUBEWELLS USE MOTORS TO PUMP WATER UPWARDS FROM 92 METRES • SPRINKLERS ARE CONNECTED TO WATER SUPPLY PIPES; EQUALLY DISTRIBUTE WATER; NOT USED MUCH DUE TO EXPENSIVENESS • TANKERS COLLECT WATER FROM LAKES AND PROVIDE TO HOUSES AND FIELDS IRRIGATION
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  • 7.   IN 1948, INDIA THREATENED TO STOP SUPPLY OF RAVI AND SUTLEJ RIVER; IN 1960, TREATY WAS SIGNED AND PAKISTAN WAS GIVEN CONTROL OF INDUS, JHELUM AND CHENAB RIVERS  MANGLA AND TARBELA DAMS WERE BUILT UNDER THIS TREATY INDUS WATER TREATY
  • 8.   2 RIVER SYSTEMS: INDUS AND BALOCHISTAN  INDUS IS THE LARGEST RIVER  INDUS SYSTEM IS AT EAST; SUTLEJ, RAVI, CHENAB & JHELUM ARE MAIN TRIBUTARIES  IN SUMMER, MEAN MONTHLY DISCHARGE OF RIVER IS HIGH DUE TO MELTING OF SNOW RIVER SYSTEMS
  • 9.   WESTERN INDUS OR BALOCHISTAN RIVERS ARE SWAT, KABUL, TOCHI, GOMAL AND KURRAM  THEY ARE MUCH SMALLER THAN EASTERN INDUS  THEY ONLY FLOW DURING MONSOON(JULY TO SEPT)  LITTLE VALUE FOR IRRIGATION RIVER SYSTEMS
  • 10.   ONLY 2 LARGE DAMS IN PAKISTAN (+15 METRES TALL): TARBELA AND MANGLA  BARRAGES CAN BE BUILT ON FLAT LAND  9 BARRAGES: CHASHMA, GUDDU, TAUNSA , MARALA, RASUL, QADIRABAD, JINNAH, SUKKUR AND KOTRI.  ALL ARE ON RIVER INDUS EXCEPT QADIRABAD AND MARALA (BOTH ON CHENAB) DAMS AND BARRAGES
  • 11.   FINE PARTICLES OF SOIL ARE CALLED SILT  SILT FROM GLACIERS AND THROUGH DEFORESTATION BLOCKS CANALS AND DAMS WHICH RESULTS IN LOW PRODUCTION OF HEP  IT CAN BE CONTROLLED BY: INSTALLATION OF SILT TRAPS, AFFORESTATION AND CEMENTATION OF CANALS FOR EASIER CLEANING SILTATION
  • 12.   THE RISE OF WATER TABLE TO SURFACE IS WATERLOGGING AND APPEARANCE OF SALTY PATCHES IS CALLED SALINITY  IT CAN BE CONTROLLED BY: LINING OF CANALS, USAGE WHEN NEEDED OF CANALS, PLANTING OF EUCALYPTUS TREES TO ABSORB WATER AND USAGE OF TUBEWELLS TO LOWER WATER TABLE  SCARP (SALINITY CONTROL AND RECLAMATION PROJECT) WAS SET UP IN 1959 TO SOLVE THIS issue Waterlogging salinity
  • 13.   Dumping of industrial and agricultural waste causes water pollution  Waste flows in drains and passes from rivers to sea  Oil seepage from ships also causes great pollution in Karachi Water pollution