Articles | Volume 9, issue 5
Earth Surf. Dynam., 9, 1323–1334, 2021
Earth Surf. Dynam., 9, 1323–1334, 2021

Research article 30 Sep 2021

Research article | 30 Sep 2021

Sand mining far outpaces natural supply in a large alluvial river

Christopher R. Hackney et al.

Related authors

The Coastline Evolution Model 2D (CEM2D) V1.1
Chloe Leach, Tom Coulthard, Andrew Barkwith, Daniel R. Parsons, and Susan Manson
Geosci. Model Dev., 14, 5507–5523,,, 2021
Short summary
Dynamics of salt intrusion in the Mekong Delta: results of field observations and integrated coastal–inland modelling
Sepehr Eslami, Piet Hoekstra, Herman W. J. Kernkamp, Nam Nguyen Trung, Dung Do Duc, Hung Nguyen Nghia, Tho Tran Quang, Arthur van Dam, Stephen E. Darby, Daniel R. Parsons, Grigorios Vasilopoulos, Lisanne Braat, and Maarten van der Vegt
Earth Surf. Dynam., 9, 953–976,,, 2021
Short summary
The Cambodian Mekong floodplain under the future development plans and climate change
Sokchhay Heng, Alexander Horton, Panha Hok, Sarit Chung, Jorma Koponen, and Matti Kummu
Nat. Hazards Earth Syst. Sci. Discuss.,,, 2021
Revised manuscript under review for NHESS
Short summary
Quantifying biostabilisation effects of biofilm-secreted and extracted extracellular polymeric substances (EPSs) on sandy substrate
Wietse I. van de Lageweg, Stuart J. McLelland, and Daniel R. Parsons
Earth Surf. Dynam., 6, 203–215,,, 2018
Short summary
Groundwater seepage landscapes from distant and local sources in experiments and on Mars
W. A. Marra, S. J. McLelland, D. R. Parsons, B. J. Murphy, E. Hauber, and M. G. Kleinhans
Earth Surf. Dynam., 3, 389–408,,, 2015
Short summary

Related subject area

Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
Sediment shell-content diminishes current-driven sand ripple development and migration
Chiu H. Cheng, Jaco C. de Smit, Greg S. Fivash, Suzanne J. M. H. Hulscher, Bas W. Borsje, and Karline Soetaert
Earth Surf. Dynam., 9, 1335–1346,,, 2021
Short summary
The formation and geometry characteristics of boulder bars due to outburst floods triggered by overtopped landslide dam failure
Xiangang Jiang, Haiguang Cheng, Lei Gao, and Weiming Liu
Earth Surf. Dynam., 9, 1263–1277,,, 2021
Short summary
Landslide-lake outburst floods accelerate downstream hillslope slippage
Wentao Yang, Jian Fang, and Jing Liu-Zeng
Earth Surf. Dynam., 9, 1251–1262,,, 2021
Short summary
The relative influence of dune aspect ratio and beach width on dune erosion as a function of storm duration and surge level
Michael Itzkin, Laura J. Moore, Peter Ruggiero, Sally D. Hacker, and Reuben G. Biel
Earth Surf. Dynam., 9, 1223–1237,,, 2021
Short summary
A temperature-dependent mechanical model to assess the stability of degrading permafrost rock slopes
Philipp Mamot, Samuel Weber, Saskia Eppinger, and Michael Krautblatter
Earth Surf. Dynam., 9, 1125–1151,,, 2021
Short summary

Cited articles

Anthony, E. J., Brunier, G., Besset, M., Goichot, M., Dussouillez, P., and Nguyen, V. L.: Linking rapid erosion of the Mekong River delta to human activities, Nat. Publ. Gr., 5, 14745,, 2015. 
Ashraf, M. A., Maah, M. J., Yusoff, I., Wajid, A., and Mahmood, K.: Sand mining effects, causes and concerns: A case study from Bestari Jaya, Selangor, Peninsular Malaysia, Sci. Res. Essays, 6, 1216–1231, 2011. 
Bagnold, R. A.: An empirical correlation of bedload transport rates in flumes and natural rivers, P. Roy. Soc. A, 372, 453–473, 1980. 
Barman, B., Kumar, B., and Sarma, A. K.: Turbulent flow structures and geomorphic characteristics of a mining affected alluvial channel, Earth Surf. Proc. Land., 43, 1811–1824,, 2018. 
Bendixen, M., Best, J. L., Hackney, C. R., and Iversen, L. L.: Time is running out for sand, Nature, 571, 29–31,, 2019. 
Short summary
Unsustainable sand mining poses a threat to the stability of river channels. We use satellite imagery to estimate volumes of material removed from the Mekong River, Cambodia, over the period 2016–2020. We demonstrate that current rates of extraction now exceed previous estimates for the entire Mekong Basin and significantly exceed the volume of sand naturally transported by the river. Our work highlights the importance of satellite imagery in monitoring sand mining activity over large areas.