River Sand and Gravel Mining: What 411 Studies Show About Drivers, Impacts and Management


A review whose co-authors include Dung Duc Tran (HAPRI Senior Research Associate) synthesizes 411 peer-reviewed studies and finds that, in most documented cases, annual removal of river sand and gravel exceeds bed-material supply several-fold. It also finds the evidence uneven: impacts are widely studied, while far fewer studies quantify extraction extent or analyze demand drivers, a gap the authors say hampers the design of effective interventions.
Context
River sand and gravel are mined worldwide at volumes that now rival their natural replenishment. Yet, as the authors note, quantitative knowledge of this mining activity and its consequences lags far behind many other global environmental pressures.

Methods
The authors synthesize 411 peer-reviewed studies published since 1974 within a new framework, the Driver-to-Management Pathway for Sustainable Sand and Gravel Mining. The framework links socio-economic demand, the spatial-temporal extent of extraction, hydrogeomorphic change, socio-ecological disruption, and management response.
Key findings
The evidence shows a pronounced scale mismatch: regional-to-global drivers fuel largely unreported local extraction, while impacts propagate well beyond mining sites.
In most documented cases, annual removal exceeds bed-material supply several-fold, producing channel incision, bank collapse, declining groundwater tables, deteriorating water quality, and inland migration of saline water in coastal areas.
These physical changes cascade into habitat loss, infrastructure damage, and livelihood insecurity, especially across rapidly developing regions of Asia and Africa.
Impact studies make up 69% of the literature, and research is dominated by hydrogeomorphic perspectives; only 27% of studies quantify extraction extent and 24% analyze demand drivers, which the authors say hampers the design of effective interventions.

Policy implications
These findings highlight the need for basin-scale monitoring, cross-boundary governance, and demand-side interventions that explicitly link extraction limits to sediment budgets.
Keywords:
Sand Mining
Gravel Mining
River Sediment
Sediment Budgets
Channel Incision
Resource Governance
Link:
Citation:
Park, E., Hackney, C. R., Tran, D. D., Bendixen, M., Best, J., Yuen, K. W., Runeckles, H., Chyon, M. S. A., Kästner, K., Kumar, S., Yusuf, H., Lamb, V., Iversen, L. L., Spiller, A., Sinha, R., Silva, E. F. D., Alcantara, E., Wu, C., Lu, C., Jian, C., Wang, J., Thien, N. D., Feng, L., Patel, P. P., Huang, J., & Switzer, A. D. (2026). River Sand and Gravel Mining: Global Drivers, Impacts, and Pathways for Sustainable Management. Reviews of Geophysics, 64(3).



