Estimation of the Groundwater Exploitation Based on Land Subsidence Numerical Model: a Case Study in the Plain Area of Tianjin

Abstract:

Historical data about withdrawal of regional groundwater serves as a foundation for better evaluating and scientifically managing the groundwater resource. However, due to limitations of management system and workload etc., statistical data shows that groundwater exploitation is much less than what we expect in fact. In this study, we take the plain area of Tianjin as an example, the historical dataset on groundwater withdrawal is estimated reversely based on the coupled numerical model-groundwater flow and land subsidence via Modflow2005. Specifically, pumping rate serving as an input in the model is continuously modified until the numerical head distribution simulates observed value at every county in a specific period. Nonetheless, the pumping rate is also constrained by the value estimated by statistical method and quota method. Finally, the mean annual value of groundwater exploitation during 1998 to 2008 is estimated to be 8.35×10⁸m³/a.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 2734-2739
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.2734
• Online since: December 2012
• Authors: Chen Su, Ya Li Cui, Li Chun Wang, Ling Li
• Keywords: Groundwater Exploitation, Groundwater Flow, Groundwater Level, Land Subsidence, Numerical Simulation

References

[1] M. T. Moreo, K. J. Halford, R.J. La Camera, and R. J. Laczniak, Estimated ground-water withdrawals from the Death Valley regional flow system, Nevada and California, 1913-98, Water-Resources Investigations Report 03-4245 ( 2003), 34p.

DOI: 10.2172/816939

[2] J. H. Kihm, J. M. Kim, S. H. Song, and G. S. Lee, Three-dimensional numerical simulation of fully coupled groundwater flow and land deformation due to groundwater pumping in an unsaturated fluvial aquifer system, Journal of Hydrology, Vol. 335 (2007), pp.1-14.

DOI: 10.1016/j.jhydrol.2006.09.031

[3] Lijun Zhang, A model for transient three-dimensional underground deformation in response to groundwater pumpage, Morgan State University (2009), 199p.

[4] Yuqun Xue, and Chunhong Xie, Numerical Simulation for Groundwater, Beijing: Science Press (2007), pp.30-49. (in Chinese)

[5] Xiaodong Cui, Application and development of MODFLOW and IDP in digital calculation of land subsidence in Tianjin, The Chinese Journal of Geological Hazard And Control, Vol. 9,No. 2 (1998), pp.122-128.(in Chinese)

[6] S. A. Leake, and D. L. Galloway, Land subsidence, use of the SUB-WT package for MODFLOW to simulation aquifer-system compaction in Antelope Valley, California, USA-proceedings of eighth international symposium on land subsidence, IAHS Publication, Oxfordshire UK: IAHS Press, Vol339 (2010), pp.61-67.

DOI: 10.3133/tm6a23

[7] C. C. Faunt, R. T. Hanson, P. Martin, and W. Schmid, Planned updates and refinements to the central valley hydrologic model, with an emphasis on improving the simulation of land subsidence in the San Joaquin Valley, World Environmental and Water Resources Congress: Bearing Knowledge for Sustainability-Proceeding of the 2011Word Environmental and Water Resources Congress (2011), pp.864-870.

DOI: 10.1061/41173(414)88

[8] M. O' Sullivan, A. Yen, and E. Clearwater, Three-dimensional model of subsidence at Wairakei-Tauhara, University of Auckland ( 2010), 85p.

[9] Yuqun Xue, Jichun Wu, Yun Zhang, Shujun Ye, Xiaoqing Shi, and Zixin Wei, et al, Simulation of regional land subsidence in the southern Yangtze Delta, Sci China Ser D-Earth Sci, Vol. 51, No. 6 (2008), pp.808-825.

DOI: 10.1007/s11430-008-0062-z

[10] J. Hoffmann, S. A. Leake, D. L. Galloway, and A. M. Wilson, MODFLOW-2000 ground-water model-user guide to the subsidence and aquifer-system compaction(SUB) package, U. S. Geological Survey Open-File Report 03-233 ( 2003), 52p.

DOI: 10.3133/ofr03233

[11] Wenyun Li, Yali Cui, Chen Su, Wei Zhang, and Jingli Shao, A study on an integrated numerical groundwater and land subsidence model of Tianjin, Journal of Jilin University (Earth Science Edition) (2012), submitted for publication.(in Chinese)

[12] Yabin Wang, Achievement report (Tianjin) of investigation and evaluation on groundwater sustained development in Huabei Plain, Tianjin: Tianjin Institute of Geological Survey (2007), pp.128-130. (in Chinese)

[13] Duo Li and Fanghong Li, Analysis report of volume sequence of groundwater exploration in Tianjing, Heibei: Shijiazhuang University of Economics (2010), 400p. (in Chinese)