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Author : D. Michael Gee,Robert C. MacArthur
Publisher : Unknown
Page : 18 pages
File Size : 41,8 Mb
Release : 1996
Category : Erosion
ISBN : UCR:31210024979773
Author : L. D. Meyer,W. C. Harmon
Publisher : Unknown
Page : 68 pages
File Size : 55,7 Mb
Release : 1981
Category : Goodwin Creek Watershed (Miss.)
ISBN : UIUC:30112104633877
Well over half the sediment lost from many watersheds originates as eroded soil from their uplands and bottomlands. Such erosion occurs over such a large area that it often goes unnoticed in comparison to the more spectacular losses from stream channels and gullies, yet it may be an even greater sediment source. Upland erosion is sometimes noticeable when rilling occurs at serious rates, but the 'unseen' interrill erosion, caused primarily by raindrop impact on land between rills and gullies, may also produce great quantities of sediment. This research was conducted to study interrill erosion rates for the major soils and land uses in Goodwin Creek Watershed by applying hundreds of simulated rainstorms on many different soils and cropping conditions. The transport of sediment was studied for various conditions that are typical of intensively cropped land to evaluate how much sediment would be carried from the sources to the major stream systems. The capacity of runoff to transport sediment was affected most by the steepness of the runoff flow channel. Steepnesses exceeding 1% could transport large quantities of sediment. Transport capacity also increased rapidly as flow rate increased and as sediment size decreased. This research confirms that Goodwin Creek Watershed soils are very erodible and that the resulting sediment is readily transported.
Author : Earl E. Eiker
Publisher : Unknown
Page : 16 pages
File Size : 45,9 Mb
Release : 1996
Category : Environmental risk assessment
ISBN : UCR:31210024979781
Author : Mohamed Meddi,Gil Mahé,Hafzullah Aksoy
Publisher : MDPI
Page : 212 pages
File Size : 53,6 Mb
Release : 2019-09-17
Category : Technology & Engineering
ISBN : 9783039214310
Climate and anthropogenic changes impact the conditions of erosion and sediment transport in rivers. Rainfall variability and, in many places, the increase of rainfall intensity have a direct impact on rainfall erosivity. Increasing changes in demography have led to the acceleration of land cover changes in natural areas, as well as in cultivated areas, and, sometimes, in degraded areas and desertified landscapes. These anthropogenized landscapes are more sensitive to erosion. On the other hand, the increase in the number of dams in watersheds traps a great portion of sediment fluxes, which do not reach the sea in the same amount, nor at the same quality, with consequences on coastal geomorphodynamics. This book is dedicated to studies on sediment fluxes from continental areas to coastal areas, as well as observation, modeling, and impact analysis at different scales from watershed slopes to the outputs of large river basins. This book is concentrated on a number of keywords: “erosion” and “sediment transport”, “model” and “practice”, and “change”. The keywords are briefly discussed with respect to the relevant literature. The contributions in this book address observations and models based on laboratory and field data, allowing researchers to make use of such resources in practice under changing conditions.
Author : John Charles Peters
Publisher : Unknown
Page : 20 pages
File Size : 40,7 Mb
Release : 1996
Category : Hydrologic models
ISBN : UCR:31210024979807
Author : K. Malcolm Leytham,Robert C. Johanson
Publisher : Unknown
Page : 382 pages
File Size : 41,8 Mb
Release : 1979
Category : Erosion
ISBN : MINN:31951002851182A
Author : International Association of Hydrological Sciences. Scientific Assembly
Publisher : IAHS Press
Page : 324 pages
File Size : 44,7 Mb
Release : 1997
Category : Environmental degradation
ISBN : 1901502309
Author : Hossein Ghadiri,Calvin Rose
Publisher : CRC Press
Page : 240 pages
File Size : 53,6 Mb
Release : 1992-09-23
Category : Science
ISBN : 0873717473
Modeling Chemical Transport in Soils: Natural and Applied Contaminants provides a comprehensive discussion of mathematical models used to anticipate and predict the consequences and fate of natural and applied chemicals. The book evaluates the strengths, weaknesses, and possibilities for application of numerous models used throughout the world. It examines the theoretical support and need for experimental calibration for each model. The book also reviews world literature to discuss such topics as the movement of sorbed chemicals by soil erosion, the movement of reactive and nonreactive chemicals in the subsurface and groundwater, and salt transport in the landscape. Modeling Chemical Transport in Soils: Natural and Applied Contaminants is an important volume for environmental scientists, agricultural engineers, regulatory personnel, farm managers, consultants, and the chemical industry.
Author : Gary Parker,Marcelo H. Garcia
Publisher : CRC Press
Page : 1281 pages
File Size : 48,9 Mb
Release : 2005-09-29
Category : Technology & Engineering
ISBN : 9781439833896
The proceedings of the 4th Symposium on River, Coastal and Estuarine Morphodynamics offers the latest research results concerning quantitative modelling of the interaction of water and sediment and the shapes this interaction makes in rivers, watersheds, estuaries, the coast, the continental shelf and the deep sea. Morphodynamics is the study of the evolution of landscape and seascape features, from small scale to large.
Author : Anonim
Publisher : Government Printing Office
Page : 626 pages
File Size : 51,9 Mb
Release : 2006
Category : Science
ISBN : UOM:39015068765992
NOTE: NO FURTHER DISCOUNT FOR THIS PRINT PRODUCT--OVERSTOCK SALE --Significantly reduced list price while supplies last The Erosion and Sedimentation Manual provides a comprehensive coverage of subjects in nine chapters (i.e., introduction, erosion and reservoir sedimentation, noncohesive sediment transport, cohesive sediment transport, sediment modeling for rivers and reservoirs, sustainable development and use of reservoirs, river process and restoration, dam decommissioning and sediment management, and reservoir surveys and data analysis). Each chapter is self-contained, with cross references of subjects that are discussed in different chapters of this manual. The manual also includes a list of commonly used notations used in the erosion and sedimentation literature, conversion factors between the Imperial and metric units, physical properties of water, and author and subject indexes for easy reference. Each chapter has a list of reference for readers who would like to seek out more detailed information on specific subjects. Audience The manual would be useful for researchers, university professors, graduate students, geologists, hydrographic survey analysts, municipal and state water research specialists, and engineers in solving erosion and sedimentation problems. Related products: Earth Science resources collection can be found here: https: //bookstore.gpo.gov/catalog/science-technology/earth-science
Author : R. G. Willey
Publisher : Unknown
Page : 18 pages
File Size : 55,8 Mb
Release : 1996
Category : HEC-5 (Computer program)
ISBN : UCR:31210024979799
Author : Anonim
Publisher : Unknown
Page : 642 pages
File Size : 40,6 Mb
Release : 2002
Category : Electronic
ISBN : NWU:35556033431982
Author : Anonim
Publisher : DIANE Publishing
Page : 99 pages
File Size : 45,5 Mb
Release : 1997
Category : Electronic
ISBN : 9781428913271
The Department of Defense (DOD) is currently moving towards the concept of "ecosystem management" to more effectively protect, sustain, and/or enhance natural and cultural resources critical to the training mission. Ecosystem management is an approach to natural resources management that recognizes the interrelationships of ecological processes that link soils, plants, animals, minerals, climate, water, and topography as a living system. This system is important to and is affected by human activity beyond traditional commodity and amenity uses and acknowledges the importance of ecosystem services such as water conservation, oxygen recharge, and nutrient recycling. Some of the factors that must be considered in ecosystem management include the effects of soil erosion on water and air quality, potential damage to wildlife habitat, and in the case of DOD, the effects on the ability to train efficiently and effectively.
Author : Anonim
Publisher : Unknown
Page : 882 pages
File Size : 43,9 Mb
Release : 1991
Category : Water
ISBN : PSU:000068689094
Author : Anonim
Publisher : Unknown
Page : 520 pages
File Size : 51,8 Mb
Release : 1978
Category : Weights and measures
ISBN : UOM:39015029637330