Articles | Volume 372
https://doi.org/10.5194/piahs-372-173-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/piahs-372-173-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Potential of Holocene deltaic sequences for subsidence due to peat compaction
E. Stouthamer
CORRESPONDING AUTHOR
Dept. of Physical Geography, Faculty of Geosciences, Utrecht University, Utrecht, the Netherlands
S. van Asselen
Dept. of Physical Geography, Faculty of Geosciences, Utrecht University, Utrecht, the Netherlands
Related authors
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The effects of land subsidence could be devastating on heavily settled coastal plains. In a scenario of sea-level rise, high costs are expected to protect coastal cities and touristic hotspots and to keep drained reclaimed lands. In this work, we calculated subsidence rates (SR) in the Po coastal plain, over the last 5.6 and 120 thousand years, providing information about land movements before human intervention became the main driver of subsidence, through water and gas withdrawal.
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For many subsiding coastal areas, solutions to subsidence are readily available, but difficult to implement. To facilitate decision making and implementation of measures to subsidence, a sound and shared knowlegde base is required. But how to start creating such a knowledge base? This paper presents a comprehensive, step-by-step approach to address land subsidence, illustrated by best practise examples from around the world. This 6M approach will contribute to lowering the threshold to act.
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Proc. IAHS, 372, 179–182, https://doi.org/10.5194/piahs-372-179-2015, https://doi.org/10.5194/piahs-372-179-2015, 2015
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Deltas are increasingly under pressure from human impact and climate change. Ensuring future delta life requires sustainable management of deltas. Future Deltas is an interdisciplinary research program of Utrecht University, The Netherlands, with an international focus. It aims to understand drivers of change in deltas, predict impacts and optimize solutions and importantly contributes to the development of integrated sustainable and resilient delta management strategies.
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Land subsidence rates of ~1-4 cm yr-1 are measured in the low-lying Vietnamese Mekong Delta. These relatively high subsidence rates are attributed to groundwater extraction, which has increased drastically over the past decades. There is an urgent need to go from measurements to predictions to test future groundwater management scenarios and reduce subsidence. In this study, we present an approach to build a 3D geo-hydrological model to determine the subsidence potential of the Mekong Delta.
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Proc. IAHS, 382, 285–290, https://doi.org/10.5194/piahs-382-285-2020, https://doi.org/10.5194/piahs-382-285-2020, 2020
Short summary
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The effects of land subsidence could be devastating on heavily settled coastal plains. In a scenario of sea-level rise, high costs are expected to protect coastal cities and touristic hotspots and to keep drained reclaimed lands. In this work, we calculated subsidence rates (SR) in the Po coastal plain, over the last 5.6 and 120 thousand years, providing information about land movements before human intervention became the main driver of subsidence, through water and gas withdrawal.
Esther Stouthamer, Gilles Erkens, Kim Cohen, Dries Hegger, Peter Driessen, Hans Peter Weikard, Mariet Hefting, Ramon Hanssen, Peter Fokker, Jan van den Akker, Frank Groothuijse, and Marleen van Rijswick
Proc. IAHS, 382, 815–819, https://doi.org/10.5194/piahs-382-815-2020, https://doi.org/10.5194/piahs-382-815-2020, 2020
Short summary
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Ongoing subsidence is a complex problem for the Netherlands. Old strategies for coping have limits. In the Dutch National Scientific Research Program on Land Subsidence (2020–2025), we will develop an integrative approach to achieve feasible, legitimate and sustainable solutions for managing the negative societal effects of land subsidence, connecting fundamental research on subsidence processes to socio-economic impact of subsidence and to governance and legal framework design.
Martijn van Gils, Esther Stouthamer, and Frank Groothuijse
Proc. IAHS, 382, 825–829, https://doi.org/10.5194/piahs-382-825-2020, https://doi.org/10.5194/piahs-382-825-2020, 2020
Short summary
Short summary
This paper analyses whether and to what extent public decision-making, which controls land subsidence due to groundwater table lowering and its societal impacts, is organised effectively to reduce these societal impacts, and how the legal framework can be improved to achieve that.
Gilles Erkens and Esther Stouthamer
Proc. IAHS, 382, 733–740, https://doi.org/10.5194/piahs-382-733-2020, https://doi.org/10.5194/piahs-382-733-2020, 2020
Short summary
Short summary
For many subsiding coastal areas, solutions to subsidence are readily available, but difficult to implement. To facilitate decision making and implementation of measures to subsidence, a sound and shared knowlegde base is required. But how to start creating such a knowledge base? This paper presents a comprehensive, step-by-step approach to address land subsidence, illustrated by best practise examples from around the world. This 6M approach will contribute to lowering the threshold to act.
E. Stouthamer and S. van Asselen
Proc. IAHS, 372, 179–182, https://doi.org/10.5194/piahs-372-179-2015, https://doi.org/10.5194/piahs-372-179-2015, 2015
Short summary
Short summary
Deltas are increasingly under pressure from human impact and climate change. Ensuring future delta life requires sustainable management of deltas. Future Deltas is an interdisciplinary research program of Utrecht University, The Netherlands, with an international focus. It aims to understand drivers of change in deltas, predict impacts and optimize solutions and importantly contributes to the development of integrated sustainable and resilient delta management strategies.
P. S. J. Minderhoud, G. Erkens, V. H. Pham, B. T. Vuong, and E. Stouthamer
Proc. IAHS, 372, 73–76, https://doi.org/10.5194/piahs-372-73-2015, https://doi.org/10.5194/piahs-372-73-2015, 2015
Short summary
Short summary
Land subsidence rates of ~1-4 cm yr-1 are measured in the low-lying Vietnamese Mekong Delta. These relatively high subsidence rates are attributed to groundwater extraction, which has increased drastically over the past decades. There is an urgent need to go from measurements to predictions to test future groundwater management scenarios and reduce subsidence. In this study, we present an approach to build a 3D geo-hydrological model to determine the subsidence potential of the Mekong Delta.
Cited articles
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Short summary
The potential for subsidence of Holocene deltas due to peat compaction is mainly determined by the 3D distribution of different lithologies, and associated geotechnical properties, in the subsurface. Our study shows that sequences containing thick high-organic peat layers with no or a thin clastic overburden have the highest potential for high amounts of subsidence due to compaction. In addition, peat layers above groundwater level have high potential for subsidence due oxidation and compaction.
The potential for subsidence of Holocene deltas due to peat compaction is mainly determined by...