WSP06476

• File Number: 8271.300
• Description: Colorado River Basin Salinity Control Program - General Information and Publications-Reports
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1978
• Title: Salinity Management Options for the Colorado River -- Part 1 of 2 -- Title Page - Page 168
• Water Supply Pro - Doc Type: Report/Study

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LIST OF FIGURES

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1 Observed data with fitted damage funetion-Imperial Valley. . . . . . . , . .. .. . . . . . . . . . . . . .. . . . . . .. . . . ..15
2 Observed data with fitted damage funetion-total ..................,............................ .17
3 Net revenue by amount ofsalt outflow (sprinkler) for the 30 acres .............................,....30
4 Shadow price or value ofan additional ton ofsalt outflow (sprinkler) for 30 acres. . . . . . : , . . . . . . , . . . . . . .30
5 Net revenue by amount ofsalt outflow for the 30 acres ..................,..,..................... .31
6 Shadow price or value ofan additional ton ofsalt ouflow for the 30 aeres (flood) . . . . . . . . . . . . . . . . . . . . . . .31
7 Comparisonofthe cost and benefits ofaalinity reduction ...............................",.........35
3-1 Hypothetical yield delineation curve ..................................................,....... .126
3-2 Marginalfaetor cost curve for irrigation labor. . . . . . . . .. . . . . . . , . .. . . . . . . . . . . . . . . . . . , . . . . . ' . . . . . , .129
3-3 Total net profit by level ofTDS, Imperial Valley. ............,.,................................ .134
3-4 Observed data with fitted damage funetion, Imperial Valley Irrigation District . . . . . . . . . . . . . . . . . . . . . .135
3-5 Total net profit by level of TDS, Coachella Valley Irrigation Distriet ., . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
3.6 Observed data with fitted damage funetion, Coaehella Valley Irrigation Distret. . . . . . . . . . . . . . . . . . . . . .141
3-7 Total net profit by levelofTDS, Palo Verde Irrigation District. . . . . . . . . . , . . . .. . . . . . . . . . . . . . . . . . . .147
3-8 Observed data fitted damage funetion, Palo Verde Irrigation District .....................,......, .148
3-9 Total net profit by level of TDS, Colorado River Indian Reservation. . . . . . . . . . . . . . . , . . . . . . , . . . . . . .. .153
3-10 Observed data with fitted damage funetion, Colorado River Indian Reservation ...........,........ .155
3-11 Total net profit by level ofTDS, California Coastal Region .......................,..........,.,.. .160
3-12 Observed data with fitted damage funetion, California Coastal Region. . . . . . . . . . . . . . . . . . , . . . . . . . . . . ,161
3-13 Total net profit by level ofTDS, Wellton-Mohawk Irrigation Distriet, . . . . . . . . . . . . , . . . . . . . . . , . .. . . . .165
3-14 Observed data with fitted damage funetion, Wellton-Mohawk Irrigation Distriet ....,...,.......... .166
3-15 Total net profit by level of TDS, Gila area ....,.....,.......................,..,............... .171
3.16 Observed data with fitted funetion, Gila area. ..... ... ., .. ... ..... ,. . . , .. ,.,.,. .....,.... ....... .172
3-17 Total net profit by levelofTDS, Yuma Valley area... '. ,.. ,. .... . ..... ,. ., . ,. ,. .. ... '. ,.. ., ..... .177
3-18 Observed data with fitted damage funetion, Yuma Valley ares .....,....,.,..,...,.,.,...,.,.,... .177
3-19 Observed data with fitted damage funetion, Roosevelt Irrigation Distriet . , . . . , . . . . . . . . . . . . . . . . . . . . . 196
4-1 Survey areas: Loeation ofTDS concentrations and socio-economic units .......,.,..,............., .260
5-1 The Colorado River Basin ..,..,......,....... ,.,.........,.,...,.........,......,........... .280
5-2 Harvested acreages of selected erops grown on Bureau of Reclamation project lands . . . . . . . . . . . , . . . . .285
6-1 Cumulative evapotranspiration as a funetion of time for two levels of irrigation, I, and
rain, R, at two different initial salt concentrations. . . . . . . . . . . . . . . . . . . . . . . . . , . . . . , . . . . , . . . . . .. . . . .297
6-2 Salt concentration as a function of depth, irrigation, and rain at the end of one season
(eorn, oats) . . . . . . . . . . , . . . , . . . . , . . . . . , . , . , . , . . , . . . . . . . , . . . . , . , . . . , . . . . , . . . . . . . . . . . . . . . . . . . . . .299
6-3 Relative transpiration and average salt concentration for corn with deep roots irrigated
at a rate of 24,4 cm/year as inf!uenced by year ......,..,..,...,..,.........,................... .300
6-4 Optimal cropping and irrigating pattern for high, medium, and low initial soil salt
conditions where corn roots are deep and alfalfa shallow (flood or sprinkler) . . . . . . . . . . . . . . . . . . . . . . . . .304
6-5 Net revenue by amount ofsalt outflow for the 30 aeres as shown in Figure 6-4 ..,....................305
6-6 Shadow price or value of an additional ton of salt outflow for the 30 acres as shown in
Figure 6-4 , ...,...,..........,.,.."....,.,........,....................,.................. .305
6-7 Optimal eropping and irrigating pattern for high, medium, and low initial soil salt conditions
where corn roots are shallow, and alfalfa deep (flood or sprinkler). ..............,................. .306
6.8 Net revenue by amount ofsalt outflow for the 30 aeres as shown in Figure 6-7 , . . . . . . , . . . . . . . . , . . , . . .306
6-9 Shadow price or value of an additional ton of salt outflow for the 30 aeres as shown in
Figure 6.7 ..................,..,..............,...,..........................,............. .307
6-10 Optimal cropping and irrigating pattern for high. medium, and low initial soil salt eonditions
where corn roots are shallow and alfalfa deep (flood) ...,......................,....,............ ,307
6.11 Net revenue by amount ofsalt outflow for 30 acres as shown in Figure 6-10. ...,..,................. ,308
6-12 Shadow price or value of an additional ton of salt outflow for the 30 acres as shown in
Figure 6-10. , . . . . . . . . . . . . . , . , . . . , . . . . . . , , . .. . . . . . . . . . . . . . , . . . . . . . . . . . . . . , . . . . . . . . , . . . . . . . . . ,308
6-13 Optimal cropping and irrigating pattern for high, medium, and low initial soil salt conditions
where corn roots are shallow and alfalfa deep (sprinkler) ..........,...........,.,................308

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