Application of a Surrogate Model for a Groundwater Numerical Simulation Model for Determination of the Annual Control Index of the Groundwater Table in China
The Chinese government hopes to implement groundwater table control to realize the sustainable utilization of groundwater resources based on controlling the current groundwater exploitation amount. In this study, a method to determine the control index of the groundwater table is proposed. In the me...
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doaj-e620bcff4faf4d94858d1a4d63865a972020-11-25T03:16:55ZengMDPI AGSustainability2071-10502020-07-01125752575210.3390/su12145752Application of a Surrogate Model for a Groundwater Numerical Simulation Model for Determination of the Annual Control Index of the Groundwater Table in ChinaXiaowei Wang0Jingli Shao1Yali Cui2Qiulan Zhang3School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing 10083, ChinaSchool of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing 10083, ChinaSchool of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing 10083, ChinaSchool of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing 10083, ChinaThe Chinese government hopes to implement groundwater table control to realize the sustainable utilization of groundwater resources based on controlling the current groundwater exploitation amount. In this study, a method to determine the control index of the groundwater table is proposed. In the method, the reasonable relationship between the groundwater table and groundwater exploitation amount is ensured using the groundwater numerical simulation model. The operability of the index determination is improved using a surrogate numerical model, and the annual hydrological dynamic is simplified to three scenarios of dry, flat, and wet. To verify this method, the Minqin Basin in Northwest China was chosen as a typical study area. It is assumed that the control index of groundwater exploitation in 2020 is 85,00010<sup>3</sup>m<sup>3</sup>. Then, the preset annual water table index is calculated as [−0.70, 0.62, 1.13, −1.25, 1.36, 3.09] m [−0.77, 0.53, 1.05, −1.33, 1.27, 2.96] m, and [−0.83, 0.46, 0.99, −1.40, 1.20, 2.85] m for the chosen six monitoring wells, varying over the years with wet, flat, and dry scenarios. This method can ensure high precision, operability, and dynamic management when determining the control index of the groundwater table and satisfy the demand of managers.https://www.mdpi.com/2071-1050/12/14/5752groundwater managementcontrol index of groundwater exploitation amountcontrol index of groundwater tablenumerical simulation modelsurrogate modelMinqin Basin |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xiaowei Wang Jingli Shao Yali Cui Qiulan Zhang |
spellingShingle |
Xiaowei Wang Jingli Shao Yali Cui Qiulan Zhang Application of a Surrogate Model for a Groundwater Numerical Simulation Model for Determination of the Annual Control Index of the Groundwater Table in China Sustainability groundwater management control index of groundwater exploitation amount control index of groundwater table numerical simulation model surrogate model Minqin Basin |
author_facet |
Xiaowei Wang Jingli Shao Yali Cui Qiulan Zhang |
author_sort |
Xiaowei Wang |
title |
Application of a Surrogate Model for a Groundwater Numerical Simulation Model for Determination of the Annual Control Index of the Groundwater Table in China |
title_short |
Application of a Surrogate Model for a Groundwater Numerical Simulation Model for Determination of the Annual Control Index of the Groundwater Table in China |
title_full |
Application of a Surrogate Model for a Groundwater Numerical Simulation Model for Determination of the Annual Control Index of the Groundwater Table in China |
title_fullStr |
Application of a Surrogate Model for a Groundwater Numerical Simulation Model for Determination of the Annual Control Index of the Groundwater Table in China |
title_full_unstemmed |
Application of a Surrogate Model for a Groundwater Numerical Simulation Model for Determination of the Annual Control Index of the Groundwater Table in China |
title_sort |
application of a surrogate model for a groundwater numerical simulation model for determination of the annual control index of the groundwater table in china |
publisher |
MDPI AG |
series |
Sustainability |
issn |
2071-1050 |
publishDate |
2020-07-01 |
description |
The Chinese government hopes to implement groundwater table control to realize the sustainable utilization of groundwater resources based on controlling the current groundwater exploitation amount. In this study, a method to determine the control index of the groundwater table is proposed. In the method, the reasonable relationship between the groundwater table and groundwater exploitation amount is ensured using the groundwater numerical simulation model. The operability of the index determination is improved using a surrogate numerical model, and the annual hydrological dynamic is simplified to three scenarios of dry, flat, and wet. To verify this method, the Minqin Basin in Northwest China was chosen as a typical study area. It is assumed that the control index of groundwater exploitation in 2020 is 85,00010<sup>3</sup>m<sup>3</sup>. Then, the preset annual water table index is calculated as [−0.70, 0.62, 1.13, −1.25, 1.36, 3.09] m [−0.77, 0.53, 1.05, −1.33, 1.27, 2.96] m, and [−0.83, 0.46, 0.99, −1.40, 1.20, 2.85] m for the chosen six monitoring wells, varying over the years with wet, flat, and dry scenarios. This method can ensure high precision, operability, and dynamic management when determining the control index of the groundwater table and satisfy the demand of managers. |
topic |
groundwater management control index of groundwater exploitation amount control index of groundwater table numerical simulation model surrogate model Minqin Basin |
url |
https://www.mdpi.com/2071-1050/12/14/5752 |
work_keys_str_mv |
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