Environmental Sedimentology by Chris Perry, Kevin Taylor

By Chris Perry, Kevin Taylor

Environmental Sedimentology offers a entire creation to this speedily increasing box which addresses the functioning and dynamics of latest sediment platforms and the way those platforms reply to a number either common and anthropogenically-induced disturbance occasions. considers various sedimentary environments; mountain and upland, fluvial, lacustrine, arid, city, deltaic and estuarine, temperate coastal, tropical coastal, and continental shelf elements of sediment administration and remediation also are regarded as are the capability affects of on-going and destiny climatic and environmental swap Readership: complex point undergraduates in earth technology, environmental technology and actual geography, and graduate scholars within the earth and environmental sciences with an curiosity in modern sediment platforms

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G. see Chapter 10). It is also important that the full range of scales on which sedimentary processes operate is considered in sediment management. For example, within river basins a number of models have recently been produced to manage sediment at the catchment scale (Apitz & White 2003; Owens et al. 2004). Such approaches are important for compliance with, and implementation of, legislations and guidelines; for example, the European Community Water Framework Directive (2000/60/EC). Sediment is also increasingly being considered as an economic, ecological and social resource, and as such needs to be managed sustainably.

Much better information may be acquired through determining the ecological response to the sediment. The most appropriate way to do this uses ecotoxicity tests. Such tests use organisms (either benthic or water column) to determine the toxicity of a sediment, the benefit of these being that they provide information on ecological risk. However, the test does not provide information on which contaminant (or combination of contaminants) is responsible for this risk. Recently, a triad approach has been gaining favour (Sediment Quality Triad; Chapman 1986).

2 Contrasting relief regimes from different mountain systems. (Source: Barsch & Caine (1984). ) Continental shields Table lands Cuestas, eroded old mountain systems Mountain - high mountain systems Alluvial plains Ice shields (b) > 1000 750–1000 500–750 250–500 100–250 50–100 0–50 Deser ts and permanent ice Fig. 2 (a) Global map of the major relief elements of the earth surface (Dongus 1980; as cited in Barsch & Caine 1984). ) (b) Global distribution of suspended sediment yield. (From Walling & Webb 1983, Background to Palaeohydrology.

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