Land Subsidence In The U.s.

Land subsidence (LS) is a gradual settling or sudden sinking of the Earth's surface owing to subsurface movement of earth materials. More than 80% of the identified LS in the nation is due to our exploitation of underground water (UW). This report illustrates the 3 basic mechanisms by which human influence on UW causes land subsidence: compaction of aquifer systems, dewatering of organic soils, & mass wasting through dissolution & collapse of susceptible earth materials. Also examines the role that water-management groups play in mitigating subsidence damages. Color & B&W photos, maps, & drawings.Galloway, Devin L. is the author of 'Land Subsidence In The U.s.', published 1999 under ISBN 9780756711375 and ISBN 0756711371.