Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2806
Title: Two-dimensional finite elements model for boron management in agroforestry sites
Authors: Tayfur, Gökmen
Tanji, Kenneth K.
Baba, Alper
Tayfur, Gökmen
Baba, Alper
Izmir Institute of Technology. Civil Engineering
Keywords: Chemicals removal
Agroforesty
Boron buildup
Boron sorption
Boron uptake
Numerical modeling
Issue Date: Jan-2010
Publisher: Springer Verlag
Source: Tayfur, G., Tanji, K. K., and Baba, A. (2010). Two-dimensional finite elements model for boron management in agroforestry sites. Environmental Monitoring and Assessment, 160(1-4), 501-512. doi:10.1007/s10661-008-0714-7
Abstract: Agroforesty systems, which are recommended as a management option to lower the shallow groundwater level and to reuse saline subsurface drainage waters from the tile-drained croplands in the drainage-impacted areas of Jan Joaquin Valley of California, have resulted in excessive boron buildup in the soil root zone. To assess the efficacy of the long-term impacts of soil boron buildup in agroforesty systems, a mathematical model was developed to simulate non-conservative boron transport. The developed dynamic two-dimensional finite element model simulates water flow and boron transport in saturated-unsaturated soil system, including boron sorption and boron uptake by root-water extraction processes. The simulation of two different observed field data sets by the developed model is satisfactory, with mean absolute error of 1.5 mg/L and relative error of 6.5%. Application of the model to three different soils shows that boron adsorption is higher in silt loam soil than that in sandy loam and clay loam soils. This result agrees with the laboratory experimental observations. The results of the sensitivity analysis indicate that boron uptake by root-water extraction process influences the boron concentration distribution along the root zone. Also, absorption coefficient and maximum adsorptive capacity of a soil for boron are found to be sensitive parameters. © 2009 Springer Science+Business Media B.V.
URI: http://doi.org/10.1007/s10661-008-0714-7
0167-6369
http://hdl.handle.net/11147/2806
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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