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Flood Damage Reduction in Land Subsidence Areas by Groundwater Management

In: Recent Advances in Flood Risk Management

Author

Listed:
  • Yin-Lung Chang
  • Jinn-Chuang Yang
  • Yeou-Koung Tung
  • Chehao Chang
  • Tung-Lin Tsai

Abstract

Continuing land subsidence can diminish the effectiveness of an existing flood mitigation system and aggravate the flood hazard. This chapter demonstrates that, through groundwater management with an effective pumping scheme, flood hazard and related flood damage in land subsidence area can be reduced. The chosen study area is in the southwest coast of Taiwan, which has long been suffering from frequent and wide-spread flooding primarily due to land subsidence induced by groundwater overpumping. Numerical investigation in the study area clearly shows that effective management of groundwater pumping can play an important role in long-term sustainable solution for controlling the spatial-temporal variability of future land subsidence, preventing the flood hazard from worsening, reducing the flood damage, and satisfying the groundwater demand.

Suggested Citation

  • Yin-Lung Chang & Jinn-Chuang Yang & Yeou-Koung Tung & Chehao Chang & Tung-Lin Tsai, 2019. "Flood Damage Reduction in Land Subsidence Areas by Groundwater Management," Chapters, in: John Abbot & Andrew Hammond (ed.), Recent Advances in Flood Risk Management, IntechOpen.
    • Handle: RePEc:ito:pchaps:165622
    DOI: 10.5772/intechopen.80665
    as

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    More about this item

    Keywords

    flood hazard; flood damage reduction; risk analysis; groundwater management; land subsidence;
    All these keywords.

    JEL classification:

    • H84 - Public Economics - - Miscellaneous Issues - - - Disaster Aid

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