Mapping the global threat of land subsidence

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Title: Mapping the global threat of land subsidence
Authors: Herrera García, Gerardo | Ezquerro Martín, Pablo | Tomás, Roberto | Béjar Pizarro, Marta | López-Vinielles, Juan | Rossi, Mauro | Mateos, Rosa María | Carreón-Freyre, Dora | Lambert, John | Teatini, Pietro | Cabral-Cano, Enrique | Erkens, Gilles | Galloway, Devin | Hung, Wei-Chia | Kakar, Najeebullah | Sneed, Michelle | Tosi, Luigi | Wang, Hanmei | Ye, Shujun
Research Group/s: Ingeniería del Terreno y sus Estructuras (InTerEs)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Land subsidence | Groundwater depletion
Knowledge Area: Ingeniería del Terreno
Issue Date: 1-Jan-2021
Publisher: American Association for the Advancement of Science
Citation: Science. 2021, 371(6524): 34-36.
Abstract: Subsidence, the lowering of Earth's land surface, is a potentially destructive hazard that can be caused by a wide range of natural or anthropogenic triggers but mainly results from solid or fluid mobilization underground. Subsidence due to groundwater depletion (1) is a slow and gradual process that develops on large time scales (months to years), producing progressive loss of land elevation (centimeters to decimeters per year) typically over very large areas (tens to thousands of square kilometers) and variably affects urban and agricultural areas worldwide. Subsidence permanently reduces aquifer-system storage capacity, causes earth fissures, damages buildings and civil infrastructure, and increases flood susceptibility and risk. During the next decades, global population and economic growth will continue to increase groundwater demand and accompanying groundwater depletion (2) and, when exacerbated by droughts (3), will probably increase land subsidence occurrence and related damages or impacts. To raise awareness and inform decision-making, we evaluate potential global subsidence due to groundwater depletion, a key first step toward formulating effective land-subsidence policies that are lacking in most countries worldwide.
Sponsor: Funding for this study was provided partly by the Spanish Research Agency (AQUARISK, PRX19/00065, TEC2017-85244-C2-1-P projects) and PRIMA RESERVOIR project, and by all the institutions represented in the Land Subsidence International Initiative from UNESCO.
ISSN: 0036-8075 (Print) | 1095-9203 (Online)
DOI: 10.1126/science.abb8549
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2021, American Association for the Advancement of Science
Peer Review: si
Publisher version:
Appears in Collections:INV - INTERES - Artículos de Revistas

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