Impacts of 25 years of groundwater extraction on subsidence in the Mekong delta, Vietnam
Bibliographic Data
| ID | 15548567 |
|---|---|
| Authors | P S J Minderhoud (0000-0002-0940-5931, Delta Institute for Theoretical Physics, corresponding author), Gilles Erkens (0000-0002-9822-8913, Utrecht University), Pham Hung Viet (0000-0002-9016-0694, Utrecht University), V H Pham, Van Truong Bui (0000-0002-3155-8416, Thuyloi University), V T Bui, Laura Erban (0000-0002-0316-2967, Environmental Protection Agency), Henk Kooi (0000-0002-5808-5540, Deltares), Esther Stouthamer (Utrecht University) |
| Year | 2017 |
| Volume | 12 |
| Issue | 6 |
| Pages | 064006-064006 |
| Publication date | 2017-05-31 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/aa7146 |
| PMID | 30344619 |
| OpenAlex | W2621230877 |
| Language | EN |
| Citations received | 28 |
| References cited | 42 |
Many major river deltas in the world are subsiding and consequently become increasingly vulnerable to flooding and storm surges, salinization and permanent inundation. For the Mekong Delta, annual subsidence rates up to several centimetres have been reported. Excessive groundwater extraction is suggested as the main driver. As groundwater levels drop, subsidence is induced through aquifer compaction. Over the past 25 years, groundwater exploitation has increased dramatically, transforming the delta from an almost undisturbed hydrogeological state to a situation with increasing aquifer depletion. Yet the exact contribution of groundwater exploitation to subsidence in the Mekong delta has remained unknown. In this study we deployed a delta-wide modelling approach, comprising a 3D hydrogeological model with an integrated subsidence module. This provides a quantitative spatially-explicit assessment of groundwater extraction-induced subsidence for the entire Mekong delta since the start of widespread overexploitation of the groundwater reserves. We find that subsidence related to groundwater extraction has gradually increased in the past decades with highest sinking rates at present. During the past 25 years, the delta sank on average ∼18 cm as a consequence of groundwater withdrawal. Current average subsidence rates due to groundwater extraction in our best estimate model amount to 1.1 cm yr -1 , with areas subsiding over 2.5 cm yr -1 , outpacing global sea level rise almost by an order of magnitude. Given the increasing trends in groundwater demand in the delta, the current rates are likely to increase in the near future
Aquifer · Delta · Extraction (chemistry · Geomorphology · Groundwater · Groundwater-related subsidence · Hydrogeology · Hydrology (agriculture · Overexploitation · Saltwater intrusion · Structural basin · Subsidence · Water resource management · Environmental Science · Flood Risk Assessment and Management · Geological formations and processes · Synthetic Aperture Radar (SAR) Applications and Techniques · Geology
Reassessing the projections of the World Water Development Report
Projections of declining fluvial sediment delivery to major deltas worldwide in response to climate change and anthropogenic stress
A practical quantification of error sources in regional-scale airborne groundwater salinity mapping
Sea level rise projections up to 2150 in the northern Mediterranean coasts
Future sea level rise dominates changes in worst case extreme sea levels along the global coastline by 2100
Assessing households’ adaptive capacity to salinity intrusion in the Vietnam Mekong Delta
Land Subsidence Susceptibility Mapping in Ca Mau Province, Vietnam, Using Boosting Models
Managing cascading effects – Regional water sustainability from a crisis management perspective
Pluralizing climate change adaptation
Negotiating marginality
Managing Shoreline Degradation Caused by Sea‐Level Rise and Human Pressures in Coastal and Deltaic Environments
The salinization of the Mekong Delta
Integrating new sea‐level scenarios into coastal risk and adaptation assessments
How consistent are adaptation strategies with ongoing climatic and environmental changes in the Vietnamese Mekong Delta
Women and urban flooding vulnerability
Global change scenarios in coastal river deltas and their sustainable development implications
Sinking deltas
Sedimentation-enhancing strategies for sustainable deltas
Data, knowledge, and modeling challenges for science-informed management of river deltas
Sustainability of fresh groundwater resources in fifteen major deltas around the world
Offshore fresh groundwater in coastal unconsolidated sediment systems as a potential fresh water source in the 21st century
The worst 2020 saline water intrusion disaster of the past century in the Mekong Delta
Causes and consequences of tipping points in river delta social–ecological systems
Ho Chi Minh Ville, des inondations à la submersion
Landscape and Social Disruption from Sand Mining and Mining-Related Activities
Cumulative Socionatural Displacements
Compelled to Compete
Aquifer Aporias
| Unique citing works | 28 |
|---|---|
| Citations per year | 3,11 |
| Citation span | 2017 - 2026 (10) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 28 |