Modelling reactive solute transport from groundwater to soil surface under evaporation

K. Nakagawa, T. Hosokawa, S. I. Wada, K. Momii, K. Jinno, R. Berndtsson

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Two-stage soil column experiments involving capillary rise and evaporation were conducted to improve understanding of salt and water movement from groundwater to soil surface. In total, 64 soil columns were placed in a tank partly filled with water in order to mimic the groundwater table in soil. Each soil column was analysed by dividing it into 27 segments to analyse pore water and ion distribution in both liquid and solid phases after prescribed time periods. The water and solute transport behaviour in the columns was simulated by a one-dimensional numerical model. The model considers the cation exchange of four cations (Ca2+, Mg2+, Na+ and K+) in both dissolved and exchangeable forms and anion retardation for one anion (SO42-). The Cl- is treated as a conservative solute without retardation. The numerical results of the cation distributions in both liquid and solid phases, anions in the liquid phase, and volumetric water contents were in relatively good agreement with the experimental results. To achieve a better model fit to these experimental results, a variable cation exchange capacity (CEC) distribution may be required. When a simple calculation scheme for evaporation intensity was applied, better predictions in terms of daily variation were achieved. The soil water profile displayed a steady state behaviour approximately 10 days after the start of the experiments. This was in agreement with numerical results and calculated distribution of velocity vectors. The final model includes cation exchange, anion retardation, and unsaturated water flow. Consequently, the model can be applied to study sequential irrigation effects on salt accumulation or reactive transport during major ion concentration changes in groundwater.

Original languageEnglish
Pages (from-to)608-617
Number of pages10
JournalHydrological Processes
Volume24
Issue number5
DOIs
Publication statusPublished - Feb 1 2010

Fingerprint

solute transport
anion
soil surface
soil column
evaporation
groundwater
liquid
modeling
ion exchange
cation
salt
unsaturated flow
reactive transport
ion
cation exchange capacity
water
diurnal variation
solute
water flow
porewater

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

Cite this

Nakagawa, K., Hosokawa, T., Wada, S. I., Momii, K., Jinno, K., & Berndtsson, R. (2010). Modelling reactive solute transport from groundwater to soil surface under evaporation. Hydrological Processes, 24(5), 608-617. https://doi.org/10.1002/hyp.7555

Modelling reactive solute transport from groundwater to soil surface under evaporation. / Nakagawa, K.; Hosokawa, T.; Wada, S. I.; Momii, K.; Jinno, K.; Berndtsson, R.

In: Hydrological Processes, Vol. 24, No. 5, 01.02.2010, p. 608-617.

Research output: Contribution to journalArticle

Nakagawa, K, Hosokawa, T, Wada, SI, Momii, K, Jinno, K & Berndtsson, R 2010, 'Modelling reactive solute transport from groundwater to soil surface under evaporation', Hydrological Processes, vol. 24, no. 5, pp. 608-617. https://doi.org/10.1002/hyp.7555
Nakagawa K, Hosokawa T, Wada SI, Momii K, Jinno K, Berndtsson R. Modelling reactive solute transport from groundwater to soil surface under evaporation. Hydrological Processes. 2010 Feb 1;24(5):608-617. https://doi.org/10.1002/hyp.7555
Nakagawa, K. ; Hosokawa, T. ; Wada, S. I. ; Momii, K. ; Jinno, K. ; Berndtsson, R. / Modelling reactive solute transport from groundwater to soil surface under evaporation. In: Hydrological Processes. 2010 ; Vol. 24, No. 5. pp. 608-617.
@article{3d9fcb3341b0492bbed13ac7f8757bdc,
title = "Modelling reactive solute transport from groundwater to soil surface under evaporation",
abstract = "Two-stage soil column experiments involving capillary rise and evaporation were conducted to improve understanding of salt and water movement from groundwater to soil surface. In total, 64 soil columns were placed in a tank partly filled with water in order to mimic the groundwater table in soil. Each soil column was analysed by dividing it into 27 segments to analyse pore water and ion distribution in both liquid and solid phases after prescribed time periods. The water and solute transport behaviour in the columns was simulated by a one-dimensional numerical model. The model considers the cation exchange of four cations (Ca2+, Mg2+, Na+ and K+) in both dissolved and exchangeable forms and anion retardation for one anion (SO42-). The Cl- is treated as a conservative solute without retardation. The numerical results of the cation distributions in both liquid and solid phases, anions in the liquid phase, and volumetric water contents were in relatively good agreement with the experimental results. To achieve a better model fit to these experimental results, a variable cation exchange capacity (CEC) distribution may be required. When a simple calculation scheme for evaporation intensity was applied, better predictions in terms of daily variation were achieved. The soil water profile displayed a steady state behaviour approximately 10 days after the start of the experiments. This was in agreement with numerical results and calculated distribution of velocity vectors. The final model includes cation exchange, anion retardation, and unsaturated water flow. Consequently, the model can be applied to study sequential irrigation effects on salt accumulation or reactive transport during major ion concentration changes in groundwater.",
author = "K. Nakagawa and T. Hosokawa and Wada, {S. I.} and K. Momii and K. Jinno and R. Berndtsson",
year = "2010",
month = "2",
day = "1",
doi = "10.1002/hyp.7555",
language = "English",
volume = "24",
pages = "608--617",
journal = "Hydrological Processes",
issn = "0885-6087",
publisher = "John Wiley and Sons Ltd",
number = "5",

}

TY - JOUR

T1 - Modelling reactive solute transport from groundwater to soil surface under evaporation

AU - Nakagawa, K.

AU - Hosokawa, T.

AU - Wada, S. I.

AU - Momii, K.

AU - Jinno, K.

AU - Berndtsson, R.

PY - 2010/2/1

Y1 - 2010/2/1

N2 - Two-stage soil column experiments involving capillary rise and evaporation were conducted to improve understanding of salt and water movement from groundwater to soil surface. In total, 64 soil columns were placed in a tank partly filled with water in order to mimic the groundwater table in soil. Each soil column was analysed by dividing it into 27 segments to analyse pore water and ion distribution in both liquid and solid phases after prescribed time periods. The water and solute transport behaviour in the columns was simulated by a one-dimensional numerical model. The model considers the cation exchange of four cations (Ca2+, Mg2+, Na+ and K+) in both dissolved and exchangeable forms and anion retardation for one anion (SO42-). The Cl- is treated as a conservative solute without retardation. The numerical results of the cation distributions in both liquid and solid phases, anions in the liquid phase, and volumetric water contents were in relatively good agreement with the experimental results. To achieve a better model fit to these experimental results, a variable cation exchange capacity (CEC) distribution may be required. When a simple calculation scheme for evaporation intensity was applied, better predictions in terms of daily variation were achieved. The soil water profile displayed a steady state behaviour approximately 10 days after the start of the experiments. This was in agreement with numerical results and calculated distribution of velocity vectors. The final model includes cation exchange, anion retardation, and unsaturated water flow. Consequently, the model can be applied to study sequential irrigation effects on salt accumulation or reactive transport during major ion concentration changes in groundwater.

AB - Two-stage soil column experiments involving capillary rise and evaporation were conducted to improve understanding of salt and water movement from groundwater to soil surface. In total, 64 soil columns were placed in a tank partly filled with water in order to mimic the groundwater table in soil. Each soil column was analysed by dividing it into 27 segments to analyse pore water and ion distribution in both liquid and solid phases after prescribed time periods. The water and solute transport behaviour in the columns was simulated by a one-dimensional numerical model. The model considers the cation exchange of four cations (Ca2+, Mg2+, Na+ and K+) in both dissolved and exchangeable forms and anion retardation for one anion (SO42-). The Cl- is treated as a conservative solute without retardation. The numerical results of the cation distributions in both liquid and solid phases, anions in the liquid phase, and volumetric water contents were in relatively good agreement with the experimental results. To achieve a better model fit to these experimental results, a variable cation exchange capacity (CEC) distribution may be required. When a simple calculation scheme for evaporation intensity was applied, better predictions in terms of daily variation were achieved. The soil water profile displayed a steady state behaviour approximately 10 days after the start of the experiments. This was in agreement with numerical results and calculated distribution of velocity vectors. The final model includes cation exchange, anion retardation, and unsaturated water flow. Consequently, the model can be applied to study sequential irrigation effects on salt accumulation or reactive transport during major ion concentration changes in groundwater.

UR - http://www.scopus.com/inward/record.url?scp=77949647300&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77949647300&partnerID=8YFLogxK

U2 - 10.1002/hyp.7555

DO - 10.1002/hyp.7555

M3 - Article

AN - SCOPUS:77949647300

VL - 24

SP - 608

EP - 617

JO - Hydrological Processes

JF - Hydrological Processes

SN - 0885-6087

IS - 5

ER -