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<br />CONTENTS
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<br />PREF ACE......................................................................................................................_.................. vii
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<br />ACKNOWLEDGEMENTS............................................................................................................. ix
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<br />ABBREVlA TIONS AND DEFINITIONS.................................................................................... xi
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<br />SUMMARY OF MAJOR FINDINGS..............,.............,....,.............................,........................... 1
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<br />Salioity damage levels '..'............,..........,.....,.................'.................,....,...............,......,.....,.... 2
<br />Salinity effects vs. salinity damages...........,..............,.................................,.....................,... 2
<br />Damages to agriculture ...........................,......'.................................,.......'..............'............. 3
<br />Damages to households.........................................,..,..,...........................,............,...,............ 3
<br />Damages to water/wastewater utilities ..,......'...........................................'..'......,..'..'..'......, 4
<br />Damages to utilities from policy/regulation ....,..........,..'.................................................... 4
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<br />Damages to industry ...."..........,.........................................,.............................,..,..'......,....".. 5
<br />Summary of salinity damages,..,.....................................,.......,....."..................".............,..... 5
<br />Other iss ues .............................. ,...................... .............................................................. ...._.... 7
<br />The computer program ...............'......'.............................,....,...............................,..........,..., 7
<br />Strengths, weaknesses, recommendations................. ........ ............................ ......... ...... ".".... 7
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<br />Chaptcr 1. - INTRODUcrION..,..................................."..,.."....,......................................,.....".. 9
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<br />Rcsearch ohjectives ........................ .......... ................................................. '....................,....... 9
<br />Limitatioos to the study.................,..,....................,....,.......,..........................................'..'.... 9
<br />Background of the study ........,....,....,................................,......."...........'...............,.............. 10
<br />The rationale for derming salinity damages .......,...............................,..,............................ 11
<br />Salinity effects vs, salinity damages..................,...........................................,...............,....... 11
<br />Selection of a baseline ........,'......,....................,..............................................,...................'.. 12
<br />Other possible baselines ,........,.. ..... '............................... ............ ..'.................... .................... 12
<br />Selection of current values for TDS .......,...........'.................................'............................., 14
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<br />Chapter 2. - SALINITY IN THE COLORADO RIVER BASIN ,........,..........'..................... 17
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<br />The Colorado River Basin .........,.......,.......,........'...............................,..,......,......................, 17
<br />Colorado River salinity and its causes ,..,..................................,......................................... 17
<br />Salinity control programs and legislation.............,................................,..........,..........,....... 18
<br />Past and anticipated future salinity levels of the Colorado River, 1973.2010 '............, 18
<br />Salinity of metropolitan water supplies in the Lower Basin ......'......................'..'........... 20
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<br />Chapter 3, - ECONOMIC DAMAGES TO IRRIGATED AGRICULTURE .................... 23
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<br />Salinity damage threshold of crops...............................................................................,...... 23
<br />Salinity effects on crop yields .............................................................,.......'............,..'........, 24
<br />Other factors affecting crop yields ...........................................,............,....................,..'...., 24
<br />Estimating current and future (1987-2010) salinity damages to agriculture.................. 24
<br />Regressions on yield of agricultural crops. ..........................'..'............................,..'......... 25
<br />Computer model calculations of agricultural damages .............,................................,..'.. 27
<br />Other agricultural costs related to saline irrigation water ....................,...................,...... 27
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