How the change works
- 01 / Public decision
Water supply and well rules
- 02 / Physical change
Less dependence on the aquifer
- 03 / Possible outcome
Subsidence to contain
Groundwater extraction can contribute to subsidence: reliable supply alternatives are needed to reduce it, in addition to limits on wells.
Research and local documents ↓What the evidence tells us
Research in Jakarta documents variable subsidence in space, linked to groundwater extraction, urban loads and subsoil conditions. The answer must combine water, planning and monitoring.
Putting the choices into practice
Supply
The challengeDependence on wells
The responseReliable network
Soil
The challengeUnmeasured land subsidence
The responseMonitoring by neighborhood
Expectation
The challengeGround expected to rise again
The responseReduce further subsidence
The diagram compares choices and conditions for putting them into practice. Measured outcomes and their limits are discussed in the evidence.
Research and local documents ↓Conditions and limits
Reducing withdrawals does not automatically raise the ground. The causes and speeds differ between neighborhoods; moving administrative functions does not heal Jakarta alone.
Other possible benefits
More reliable water services and better flood risk planning.
Research and local documents
- Local document and reported findingAbidin et al., 2015 · Land subsidence and urban development in Jakarta ↗
Research on the case, mechanism, or measures discussed in the sheet.
