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Author : Anonim
Publisher : Unknown
Page : 348 pages
File Size : 50,8 Mb
Release : 1990
Category : Frozen ground
ISBN : PSU:000017180030
Author : Anonim
Publisher : Unknown
Page : 414 pages
File Size : 51,9 Mb
Release : 1993
Category : Frozen ground
ISBN : STANFORD:36105210360801
Author : World Data Center A for Glaciology
Publisher : Unknown
Page : 414 pages
File Size : 51,8 Mb
Release : 1977
Category : Frozen ground
ISBN : UIUC:30112002130208
Author : Lawrence W. Gatto
Publisher : Unknown
Page : 44 pages
File Size : 40,6 Mb
Release : 1997
Category : Frozen ground
ISBN : UCR:31210024759233
Author : Anonim
Publisher : DIANE Publishing
Page : 40 pages
File Size : 42,9 Mb
Release : 1997
Category : Electronic
ISBN : 9781428913363
Military maneuvers damage vegetation and compact and rut soils on training lands, thereby increasing the likelihood of hillslope runoff and soil erosion. Soil Freeze-Thaw (FT) processes can change the hydraulic geometry and roughness of vehicular ruts and reduce soil compaction, which often partially restores the water infiltration rate that existed before compaction. The efficiency of these FT-induced 'repairs' depends on soil water content and FT intensity. Initial tests showed that: (1) an experimental soil bin designed and constructed for rut experiments allows acceptable simulation of field soil FT, and (2) the hydraulic geometry of a rectangular rill in a fine silt soil with an initial volumetric water content of 36% changes dramatically due to rill sideslope slumping during thaw. Future experiments will compare differences in the response of natural rills and vehicular ruts to FT-induced soil failure, and investigate the effects of FT on soil erodibility and the influences of snow cover on soil erosion processes in the spring.
Author : Anonim
Publisher : Unknown
Page : 1168 pages
File Size : 54,9 Mb
Release : 1997
Category : Groundwater
ISBN : UCR:31210024755868
Author : David Edwin Daniel,Stephen J. Trautwein
Publisher : ASTM International
Page : 617 pages
File Size : 51,9 Mb
Release : 1994
Category : Bentonite
ISBN : 9780803114425
Author : Anonim
Publisher : Unknown
Page : 610 pages
File Size : 53,9 Mb
Release : 1998
Category : Hydrologic models
ISBN : MINN:31951D02264549R
Author : Rattan Lal,Manoj K. Shukla
Publisher : CRC Press
Page : 736 pages
File Size : 51,5 Mb
Release : 2004-05-28
Category : Technology & Engineering
ISBN : 0824753240
Principles of Soil Physics examines the impact of the physical, mechanical, and hydrological properties and processes of soil on agricultural production, the environment, and sustainable use of natural resources. The text incorporates valuable assessment methods, graphs, problem sets, and tables from recent studies performed around the globe and offers an abundance of tables, photographs, and easy-to-follow equations in every chapter. The book discusses the consequences of soil degradation, such as erosion, inhibited root development, and poor aeration. It begins by defining soil physics, soil mechanics, textural properties, and packing arrangements . The text continues to discuss the theoretical and practical aspects of soil structure and explain the significance and measurement of bulk density, porosity, and compaction. The authors proceed to clarify soil hydrology topics including hydrologic cycle, water movement, infiltration, modeling, soil evaporation, and solute transport processes. They address the impact of soil temperature on crop growth, soil aeration, and the processes that lead to the emission of greenhouse gases. The final chapters examine the physical properties of gravelly soils and water movement in frozen, saline, and water-repellant soils. Reader-friendly and up-to-date, Principles of Soil Physics provides unparalleled coverage of issues related to soil physics, structure, hydrology, aeration, temperature, and analysis and presents practical techniques for maintaining soil quality to ultimately preserve its sustainability.
Author : Edgar Michalson,R.I. Papendick,John Carlson
Publisher : CRC Press
Page : 260 pages
File Size : 49,5 Mb
Release : 1998-12-29
Category : Technology & Engineering
ISBN : 142004883X
Conservation Farming in the United States: The Methods and Accomplishments of the STEEP Program explains the success of the multidisciplinary STEEP (Solutions to Economic and Environmental Problems) conservation project, currently in its third decade, which focuses on the Palouse and the western Pacific Northwest. Topics addressed include integrated pest management; equipment for conservation farming; and conservation farming technology transfer to producers.
Author : Wolfgang Summer,Eduard Klaghofer,Wei Zhang
Publisher : IAHS Press
Page : 468 pages
File Size : 51,7 Mb
Release : 1998
Category : Sediment transport
ISBN : 1901502503
Author : Mark D.A. Rounsevell,Peter J. Loveland
Publisher : Springer Science & Business Media
Page : 310 pages
File Size : 49,7 Mb
Release : 2013-06-29
Category : Technology & Engineering
ISBN : 9783642792182
Soils will play a central role in mediating the impact of climate change on natural and managed ecosystems. The book addresses the various responses of soil processes and properties to environmental change and highlights their contribution to the proper understanding of ecosystem behaviour. Topics include: Soil hydrology; landscape evolution; salinisation; desertification; soil nitrogen dynamics; soil carbon; soil microbiology; soil erosion; crop modelling.
Author : Anonim
Publisher : Unknown
Page : 474 pages
File Size : 44,8 Mb
Release : 2013
Category : Electronic
ISBN : UIUC:30112120061723
Author : John Boardman,David Favis-Mortlock
Publisher : Springer Science & Business Media
Page : 552 pages
File Size : 43,6 Mb
Release : 2013-06-29
Category : Science
ISBN : 9783642589133
TO THE MODEL EVALUATION 1. MODELLING SOIL EROSION BY WATER l 2 John Boardman and David Favis-Mortlock 1 School of Geography and Environmental Change Unit Mansfield Road University of Oxford Oxford OX1 3TB UK 2 Environmental Change Unit University of Oxford 5 South Parks Road Oxford OX1 3UB UK Introduction This volume is the Proceedings of the NATO Advanced Research Workshop 'Global Change: Modelling Soil Erosion by Water', which was held on II-14th September 1995, at the University of Oxford, UK. The meeting was also one of a series organised by the IGBP 1 GCTE Soil Erosion Network, which is a component of GCTE's Land Degradation Task (3.3.2) (Ingram et aI., 1996; Valentin, this volume). One aim of the GCTE Soil Erosion Network is to evaluate the suitability of existing soil erosion models for predicting the possible impacts of global change upon soil erosion. Due to the wide range of erosion models currently, in use or under development, it was decided to evaluate models in the following sequence Favis-Mortlock et al., 1996): • field-scale water erosion models • catchmenr-scale water erosion models • wind erosion models • models with a landscape-scale and larger focus. As part of this strategy, the first stage of the GCTE validation of field-scale erosion models was carried out at the Oxford NATO-ARW. I A list of Acronyms fonns Appendix A.
Author : Jessica Elzea Kogel
Publisher : SME
Page : 1576 pages
File Size : 53,6 Mb
Release : 2006
Category : Nature
ISBN : 0873352335
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