Description
| Summary: | 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, and mass wasting through dissolution and collapse of susceptible earth materials. Also examines the role that water-management groups play in mitigating subsidence damages. Color and B & W photos, maps, and drawings.
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| Physical Description: | viii, 177 p. : ill. (some col.), maps (some col.) ; 28 cm. |
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| Format: | Available via Internet from the USGS web site. Address as of 9/21/02: http://water.usgs.gov/pubs/circ/circ1182; current access is available via PURL. |
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| Bibliography: | Includes bibliographical references (p. [165]-175). |
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| ISBN: | 0607926961 |
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