Monitoring and Modeling Flow and Salt Transport in a Salinity-Threatened Irrigated Valley
Publication: Journal of Irrigation and Drainage Engineering
Volume 128, Issue 2
Abstract
Saline high water tables pose a growing threat to the world’s productive irrigated land. Much of this land lies along arid alluvial plains, where solutions must now be developed in the context of changing constraints on river management. Findings are presented from the preliminary phase of a project aimed at developing, through well-conceived data collection and modeling, strategies to sustain irrigated agriculture in the salinity-threatened lower Arkansas River Basin of Colorado. Extensive field data from a representative subregion of the valley reveal the nature and variability of water table depth and salinity, irrigation efficiency and salt loading, and soil salinity. The shallow water table had an average salinity concentration of 3,100 mg/L and an average depth of 2.1 m, and was less than 1.5 m deep under about 25% of the area. Evidence reveals low irrigation efficiencies and high salt loading under each of six canals serving the subregion. Water table depths less than 2.5–3 m contributed to soil salinity levels that exceed threshold tolerances for crops under about 70% of the area. Preliminary steady-state modeling indicates that only limited improvement can be expected from vertical drainage derived from increased pumping, or from decreased recharge brought about by reduced overirrigation. Investments in canal lining, horizontal subsurface drainage, and improved river conditions also will need consideration.
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References
Boumans, J. H., and van der Molen, W. H.(1964). “Ontwaterings-behoefte van Bev loedide Gronden in Verband met hun Zouthuis houding.” Landbouwkundig Tijdschrift, 76, 880–887 (in Dutch).
Bouwer, H.(1969). “Salt balance, irrigation efficiency, and drainage design.” J. Irrig. Drain. Eng., 95(IR1), 153–170.
Brigham Young Univ. (BYU). (1999). The department of defense groundwater modeling system: GMS v3.0 reference manual, Environmental Modeling Research Laboratory, Provo, Utah.
Broner, I., and Lorenz, J. (1998). CropFlex: A crop management system user’s manual, Windows version, Dept. Chem. Bioresour. Eng., Colorado State Univ., Fort Collins, Colo.
Chin, D. A. (2000). Water-resources engineering, Prentice-Hall, Upper Saddle River, N.J. 568–571.
Colorado Climate Center. (1999). CoAgMet data access. 〈http://ccc.atmos.colostate.edu/∼coag/〉.
Cressie, N. A. C. (1991). Statistics for spatial data, Wiley, New York, 314–319.
Crookston, M. A. (1995). “Factors affecting application efficiency of furrow irrigation methods.” Seminar on Evapotranspiration and Irrigation Efficiency, Water Resour. Comm., American Consulting Engineering, Council of Colorado, and Colorado Division of Water Resources, Denver.
Emond, H. M. (1994). “A comprehensive regional analysis of on-farm irrigation efficiencies.” PhD thesis, Dept. of Agriculture and Chemical Engineering, Colorado State Univ., Fort Collins, Colo.
Evans, R. O., and Fausey, N. R. (1999). “Effects of inadequate drainage on crop growth and yield.” Agricultural drainage, Skaggs, R. W., and Van Schilfgaarde, J., eds., Agronomy No. 38, American Society of Agronomy, Madison, Wis.
Fetter, C. W. (1993). Contaminant hydrogeology, Prentice-Hall, Upper Saddle River, N.J., 81.
Gates, T. K., and Grismer, M. E.(1989). “Irrigation and drainage strategies in salinity-affected regions.” J. Irrig. Drain. Eng., 115(2), 255–284.
Ghassemi, F., Jakeman, A., and Nix, H. (1995). Salinization of land and water resources: Human causes, extent, management, and case studies, Univ. of New South Wales Press, Sydney, Australia.
Goff, K., Lewis, M. E., Person, M. A., and Konikow, L. F.(1998). “Simulated effects of irrigation on salinity in the Arkansas River Valley in Colorado.” Ground Water, 36(1), 76–86.
Grismer, M. E., and Gates, T. K.(1988). “Estimating saline water table contributions to crop water use.” California Agriculture, 42(2), 23–24.
Hillel, D. (1998). Environmental soil physics, Academic, San Diego.
Hoffman, G. J., and Durnford, D. S. (1999). “Drainage design for salinity control.” Agricultural drainage, Skaggs, R. W., and van Schilfgaarde, J., eds., Monograph No. 38, American Society of Agronomy, Madison, Wisc.
Hurr, R. T., and Moore, J. E. (1972). “Hydrogeologic characteristics of the valley-fill aquifer in the Arkansas River Valley, Bent County, Colorado.” United States Geological Survey, Denver.
Konikow, L. F., and Bredehoeft, J. D.(1974). “Modeling flow and chemical quality changes in an irrigated stream-aquifer system.” Water Resour. Res., 10(3), 546–562.
Mass, E. V. (1990). “Crop salt tolerance.” In Agricultural salinity assessment and management, Tanji, K. K. (ed.) ASCE Manuals and Reports on Engineering Practice No. 71, ASCE, New York, Chap. 13.
Mass, E. V., and Grattan, S. R. (1999). “Crop yields as affected by salinity.” Agricultural drainage, Skaggs, R. W., and Van Schilfgaarde, J., eds., Agronomy No. 38, American Society of Agronomy, Madison, Wis.
Major, T. J., Hurr, R. T., and Moore, J. E. (1970). “Hydrogeologic data for the lower Arkansas River Valley, Colorado.” U.S. Geological Survey, Denver.
McDonald, M. G., and Harbaugh, A. W. (1988). “A modular three-dimensional finite-difference ground-water flow model.” Techniques of Water Resources Investigations of the United States Geological Survey, USGS, Denver, Book 6, Chap. A1.
Miles, D. L. (1977). “Salinity in the Arkansas valley of Colorado.” Cooperative Extension Service, Colorado State Univ., Fort Collins, Colo.
Mudgway, L. B., Nathan, R. J., McMahon, T. A., and Malano, H. M.(1997). “Estimating salt loads in high water table areas I: Identifying processes.” J. Irrig. Drain. Eng., 123(2), 79–90.
Nathan, R. J., and Mudgway, L. B.(1997). “Estimating salt loads in high water table areas II: Regional salt loads.” J. Irrig. Drain. Eng., 123(2), 91–99.
Nelson, G. A., Hurr, R. T., and Moore, J. E. (1989). “Hydrogeologic characteristics of the valley-fill aquifer in the Arkansas River Valley, Otero County, Colorado.” U.S. Geological Survey, Denver.
Person, M. A., and Konikow, L. F.(1986). “Recalibration and predictive reliability of a solute-transport model of an irrigated stream-aquifer system.” J. Hydrol., 87, 145–165.
Postel, S. (1999). Pillar of sand: Can the irrigation miracle last?, Norton, New York.
Punthakey, J. F., Prathapar, S. A., and Hoey, D.(1994). “Optimizing pumping rates to control piezometric levels: A case study.” Agric. Water Manage., 26(1–2), 93–106.
Ramana, D. V., Rai, S. N., and Singh, R. N.(1995). “Water table fluctuations due to transient recharge in a 2D aquifer system with inclined base.” Water Resour. Manage., 9(2), 127–138.
Rhoades, J. D., Lesch, S. M., Shouse, P. J., and Alves, W. J.(1989). “New calibrations for determining soil electrical conductivity-depth relations from electromagnetic measurements.” Soil Sci. Soc. Am. J., 53, 74–79.
Shepard, D. (1968). “A two-dimensional interpolation function for irregularly spaced data.” Proc., 23rd National Conf. on the ACM, 517–523.
Tanji, K. K., ed. (1990). Agricultural salinity assessment and management. ASCE Manuals and Reports on Engineering Practice No. 71, ASCE, New York.
U.S. Geological Survey (USGS). (1999). 07119700—Arkansas River at Catlin dam. 〈http://nwis-colo.cr.usgs.gov/hs-cgi/gen_stn_pg_hs?〉.
U.S. Dept. of Agriculture (USDA). (1972a). Soil survey of Otero county, Colorado, USDA, SCS, La Junta, Colo.
U.S. Dept. of Agriculture (USDA). (1972b). Soil survey of Bent county, Colorado, USDA, SCS, La Junta, Colo.
Walter, I. A. (1995). “Irrigation efficiency studies: Northern Colorado.” Proc., Seminar on Evapotranspiration and Irrigation Efficiency, Water Resour. Comm., Amer. Consulting Eng. Council of Colorado, and Colorado Div. Water Resour., Denver.
Wang, H. F., and Anderson, M. P. (1995). Introduction to groundwater modeling: Finite difference and finite element methods, Academic, New York.
Weist, W. G. (1962). “Records, logs, and water-level measurements of the selected wells, springs, and test holes, and chemical analysis of ground water in Otero and in the southern part of Crowley Counties, Colorado.” U.S. Geological Survey, Denver.
Weist, W. G. (1965). “Geology and occurrence of ground water in Otero County and the southern part of Crowley County, Colorado.” U.S. Geological Survey, Denver.
Wilson, W. W. (1965). “Pumping tests in Colorado.” U.S. Geological Survey, Denver.
Zielinski, R. A., Asherbolinder, S., and Meier, A.(1995). “Uraniferous waters of the Arkansas River Valley, Colorado, USA—A function of geology and land use.” Appl. Geochem., 10(2), 133–144.
Zheng, C., and Bennett, G. D. (1995). Applied contaminant transport modeling: Theory and practice, Van Nostrand Reinhold, New York, 93.
Zheng, C., and Wang, P. P. (1999). “MT3DMS: A modular three-dimensional multispecies transport model for simulation of advection, dispersion and chemical reactions of contaminants in groundwater systems; documentation and user’s guide.” Contract Rep. No. SERDP-99-1, U.S. Army Engineer Research and Development Center, Vicksburg, Miss.
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Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 128 • Issue 2 • April 2002
Pages: 87 - 99
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Feb 16, 2001
Accepted: Aug 27, 2001
Published online: Apr 1, 2002
Published in print: Apr 2002
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