| Research Articles |
|
|
|
|
| Soil salt leaching under different irrigation regimes: HYDRUS-1D modelling and analysis |
| WenZhi ZENG, Chi XU, JingWei WU*, JieSheng HUANG |
| State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
|
|
|
Abstract Field irrigation experiments were conducted in the Hetao Irrigation District of Inner Mongolia, China, to study the effects of irrigation regimes on salt leaching in the soil profile. The data were used to calibrate and validate the HYDRUS-1D model. The results demonstrated that the model can accurately simulate the water and salt dynamics in the soil profile. The HYDRUS-1D model was then used to simulate 15 distinct irrigation scenarios. The results of the simulation indicated that irrigation amount did not have a significant effect on soil water storage but that increases in irrigation amount could accelerate salt leaching. However, when the irrigation amount was larger than 20 cm, the acceleration was not obvious. Compared with irrigating only once, intermittent irrigation had a better effect on increasing soil water storage and salt leaching, but excessive irrigation times and intervals did not improve salt leaching. In addition, we found that the irrigation regime of 20 cm, irrigated twice at 1-d intervals, might significantly increase salt leaching in the plough layer and decrease the risks of deep seepage and groundwater contamination.
|
|
Received: 08 January 2013
Published: 10 February 2014
|
| Fund: This work was supported by the National “Twelfth Five-Year” Plan for Science & Technology Support Program (2011BAD25B07), the State Natural Science Fund (51279142) and the Fundamental Research Fund for the Central Universities of the Ministry of Sci-ence and Technology, China. (2012206020206). |
|
Corresponding Authors:
|
|
|
| Ahmadi S H, Andersen M N, Plauborg F, et al. 2010. Effects of irrigation strategies and soils on field grown potatoes: yield and water productivity. Agricultural Water Management, 97: 1923–1930.Behera S K, Panda R K. 2009. Effect of fertilization and irrigation schedule on water and fertilizer solute transport for wheat crop in a sub-humid sub-tropical region. Agriculture, Ecosystems & Environment, 130: 141–155.Brusseau M L, Hu Q, Srivastava R. 1997. Using flow interruption to identify factors causing non ideal contaminant transport. Journal of Contaminant Hydrology, 24: 205–219.Crevoisier D, Popova Z, Mailhol J C, et al. 2008. Assessment and simulation of water and nitrogen transfer under furrow irrigation. Agricultural Water Management, 95: 354–366.Dabach S, Lazarovitch N, Simunek J, et al. 2013. Numerical investigation of irrigation scheduling based on soil water status. Irrigation Science, 31: 27–36.Feng Z Z, Wang X K, Feng Z W, et al. 2003. Influence of autumn irrigation on soil salt leaching of different farmlands in Hetao Irrigation District of Inner Mongolia. Rural Eco-envrionment, 19: 31–34.Gerke H H, Genuchtenv M T. 1993. A dual-porosity model for simulating the preferential movement of water and solutes in structured porous media. Water Resources Research, 29: 305–320.Ghassemi F, Jakeman A J, Nik H A. 1995. Salinization of Land and Water Resources. Human Gauses, Extent, Management and Case Studies. Sydney: New South Wales Press.Kanzari S, Hachicha M, Bouhlila R, et al. 2012. Characterization and modeling of water movement and salts transfer in a semi-arid region of Tunisia (Bou Hajla, Kairouan)–salinization risk of soils and aquifers. Computers and Electronics in Agriculture, 86: 34–42.Meng C H, Yang J Z. 2002. Experimental research on the radical selection of autumn irrigation norm in Hetao Irrigation District, China. Rural Water Research Hydropower, 5: 23–25.Mermoud A, Tamini T D, Yacouba H. 2005. Impacts of different irrigation schedules on the water balance components of an onion crop in a semi-arid zone. Agricultural Water Management, 77: 282–295.Nachabe M H, Ahuja L R, Butters G. 1999. Bromide transport under sprinkler and flood irrigation for no-till soil condition. Journal of Hydrology, 214: 8–17.Neumann L E, Šim?nek J, Cook F J. 2011. Implementation of quadratic upstream interpolation schemes for solute transport into HYDRUS-1D. Environmental Modelling & Software, 26: 1298–1308.Ramos T B, Šim?nek J, Gonçalves M C, et al. 2011. Field evaluation of a multicomponent solute transport model in soils irrigated with saline waters. Journal of Hydrology, 407: 129–144.Ramos T B, Castanheira N L, Goncalves M C, et al. 2012. Effect of combined use of brackish water and nitrogen fertilizer on biomass and sugar yield of sweet sorghum. Pedosphere, 22: 785–794.Reedy O C, Jardine P M, Wilson G V. 1996. Quantifying the diffusive mass transfer of nonreactive solutes in columns of fractured saprolite using flow interruption. Soil Science Society of America Journal, 60: 1376–1384.Sankaran S, Sonkamble S, Krishnakumar K, et al. 2012. Integrated approach for demarcating subsurface pollution and saline water intrusion zones in SIPCOT area: a case study from Cuddalore in Southern India. Environmental Monitoring and Assessment, 184: 5121–5138.Saririchi T, Azad R R, Arabian D, et al. 2012. On the optimization of sphalerite bioleaching; the inspection of intermittent irrigation, type of agglomeration, feed formulation and their interactions on the bioleaching of low-grade zinc sulfide ores. Chemical Engineering Journal, 187: 217–221.Schaap M G, Leij F J, van Genuchten M T. 2001. ROSETTA: a computer program for estimating soil hydraulic parameters with hierarchical pedotransfer functions. Journal of Hydrology, 251: 163–176.Simunek J, Jarvis N J, van Genuchten M T, et al. 2003. Review and comparison of models for describing non-equilibrium and preferential flow and transport in the vadose zone. Journal of Hydrology, 272: 14–35.Skaggs T H, van Genuchten M T, Shouse P J, et al. 2006. Macroscopic approaches to root water uptake as a function of water and salinity stress. Agricultural Water Management, 86: 140–149.Tafteh A, Sepaskhah A R. 2012. Application of HYDRUS-1D model for simulating water and nitrate leaching from continuous and alternate furrow irrigated rapeseed and maize fields. Agricultural Water Management, 113: 19–29.Van Schilfgaarde J. 1994. Iirrigation–a blessing or a curse. Agricultural Water Management, 25: 203–219.Yu L Y, Lu Y Y, An S B. 2010. Research progress of bicarbonate and carbonate determination. Westleather, 32: 48–52. |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
