Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran

High groundwater tables and soil salinity are a serious threat to agricultural areas, especially on the Abyek Plain, Iran. An interceptor drainage system was installed to lower the groundwater head and control soil salinity. Simulation is an appropriate approach to investigate possible groundwater b...

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Main Authors: Ghorbani, Karim, Teang, Shui Lee, Wayayok, Aimrun, Nasab, Saeed Boroomand
Format: Article
Language:English
Published: Wiley 2016
Subjects:
Online Access:http://psasir.upm.edu.my/id/eprint/54596/
http://psasir.upm.edu.my/id/eprint/54596/1/Interceptor%20drainage%20modelling%20to%20manage%20high%20groundwater%20table%20.pdf
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author Ghorbani, Karim
Teang, Shui Lee
Wayayok, Aimrun
Nasab, Saeed Boroomand
author_facet Ghorbani, Karim
Teang, Shui Lee
Wayayok, Aimrun
Nasab, Saeed Boroomand
author_sort Ghorbani, Karim
building UPM Institutional Repository
collection Online Access
description High groundwater tables and soil salinity are a serious threat to agricultural areas, especially on the Abyek Plain, Iran. An interceptor drainage system was installed to lower the groundwater head and control soil salinity. Simulation is an appropriate approach to investigate possible groundwater behaviour in future conditions and to explore suitable designs for implementation. Ninety‐nine observation wells were installed around the interceptor drainage system in the Abyek Plain to monitor groundwater movement and salinity changes. Groundwater table fluctuation was measured monthly for 3 years from December 2010 until January 2014. A MODFLOW model was calibrated for the study area using the data measured through the observation wells. Assessment of the measured values indicated that the groundwater head was lowered within the 3 years due to the installation of the system. A calibrated model was applied to predict the future conditions of groundwater levels and suggest proper designs. Groundwater level drawdowns were predicted at approximately 1.3 and 1.5 m for August 2018 and August 2025, respectively. The results also revealed that with the installation of additional parallel interceptor drainage at a distance of 1000 m from the existing drainage, the groundwater table could be lowered in a large area of the plain.
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spelling upm-545962018-04-02T09:17:12Z http://psasir.upm.edu.my/id/eprint/54596/ Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran Ghorbani, Karim Teang, Shui Lee Wayayok, Aimrun Nasab, Saeed Boroomand High groundwater tables and soil salinity are a serious threat to agricultural areas, especially on the Abyek Plain, Iran. An interceptor drainage system was installed to lower the groundwater head and control soil salinity. Simulation is an appropriate approach to investigate possible groundwater behaviour in future conditions and to explore suitable designs for implementation. Ninety‐nine observation wells were installed around the interceptor drainage system in the Abyek Plain to monitor groundwater movement and salinity changes. Groundwater table fluctuation was measured monthly for 3 years from December 2010 until January 2014. A MODFLOW model was calibrated for the study area using the data measured through the observation wells. Assessment of the measured values indicated that the groundwater head was lowered within the 3 years due to the installation of the system. A calibrated model was applied to predict the future conditions of groundwater levels and suggest proper designs. Groundwater level drawdowns were predicted at approximately 1.3 and 1.5 m for August 2018 and August 2025, respectively. The results also revealed that with the installation of additional parallel interceptor drainage at a distance of 1000 m from the existing drainage, the groundwater table could be lowered in a large area of the plain. Wiley 2016-07 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54596/1/Interceptor%20drainage%20modelling%20to%20manage%20high%20groundwater%20table%20.pdf Ghorbani, Karim and Teang, Shui Lee and Wayayok, Aimrun and Nasab, Saeed Boroomand (2016) Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran. Irrigation and Drainage, 65 (3). pp. 341-359. ISSN 1531-0353; ESSN: 1531-0361 https://onlinelibrary.wiley.com/doi/abs/10.1002/ird.1955 Interceptor drainage; MODFLOW; Groundwater table; Wells; Abyek Plain 10.1002/ird.1955
spellingShingle Interceptor drainage; MODFLOW; Groundwater table; Wells; Abyek Plain
Ghorbani, Karim
Teang, Shui Lee
Wayayok, Aimrun
Nasab, Saeed Boroomand
Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran
title Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran
title_full Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran
title_fullStr Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran
title_full_unstemmed Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran
title_short Interceptor drainage modelling to manage high groundwater table on the Abyek Plain, Iran
title_sort interceptor drainage modelling to manage high groundwater table on the abyek plain, iran
topic Interceptor drainage; MODFLOW; Groundwater table; Wells; Abyek Plain
url http://psasir.upm.edu.my/id/eprint/54596/
http://psasir.upm.edu.my/id/eprint/54596/
http://psasir.upm.edu.my/id/eprint/54596/
http://psasir.upm.edu.my/id/eprint/54596/1/Interceptor%20drainage%20modelling%20to%20manage%20high%20groundwater%20table%20.pdf