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Frost Moisture And Erosion
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Author :National Research Council (U.S.). Transportation Research Board Publisher :National Academy Press ISBN 13 : Total Pages :116 pages Book Rating :4.3/5 ( download)
Book Synopsis Frost, Moisture, and Erosion by : National Research Council (U.S.). Transportation Research Board
Download or read book Frost, Moisture, and Erosion written by National Research Council (U.S.). Transportation Research Board and published by National Academy Press. This book was released on 1975 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ground Freezing Effects on Soil Erosion of Army Training Lands by :
Download or read book Ground Freezing Effects on Soil Erosion of Army Training Lands written by and published by . This book was released on 1998 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two areas were monitored at the Yakima Training Center (YTC) in central Washington to measure changes in M1A2 Abrams (M1) tank-rut surface geometry, and in- and out-of-rut saturated hydraulic conductivity (Ksubfs), soil penetration resistance (SPR), and bulk density over the 1995-1996 winter. Profile meter data show that rut cross-sectional profiles smoothed significantly and that turning ruts did so more than straight ruts. Rut edges were zones of erosion and sidewall bases were zones of deposition. Ksubfs values were similar in and out of ruts formed on soil with 0-5 percent water by volume, but were lower in ruts formed on soil with about 15 percent water. Mean SPR was similar in and out of ruts from 0- to 5-cm depth, increased to 2 MPa outside ruts and 4 MPa inside ruts at 10- to 15-cm depth, and decreased by 10-38 percent outside ruts and by 39-48% inside ruts at the 30-cm depth. Soil bulk density was similar in and out of ruts from 0- to 2.5-cm depth, and below 2.5 cm it was generally higher in ruts formed on moist soil, with highest values between 10- and 20-cm depth. Conversely, density in ruts formed on dry soil was similar to out-of-rut density at all depths. This information is important for determining impacts of tank ruts on water infiltration and soil erosion, and for modifying the Revised Universal Soil Loss Equation (RUSLE) and the Water Erosion Prediction Project (WEPP) models to more accurately predict soil losses on Army training lands.
Download or read book Erosion written by Becky Olien and published by Capstone. This book was released on 2003-07 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses water, wind, ice, and soil erosion.
Book Synopsis Overland Erosion Due to Freeze-thaw Cycling by : Lawrence W. Gatto
Download or read book Overland Erosion Due to Freeze-thaw Cycling written by Lawrence W. Gatto and published by . This book was released on 2003 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CRREL Report by : Cold Regions Research and Engineering Laboratory (U.S.)
Download or read book CRREL Report written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1984 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Significance of Frost Action and Surface Soil Characteristics to Wind Erosion at Rocky Flats, Colorado. Third Progress Report, October 1, 1976--June 30, 1977 by :
Download or read book Significance of Frost Action and Surface Soil Characteristics to Wind Erosion at Rocky Flats, Colorado. Third Progress Report, October 1, 1976--June 30, 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes information on soil frost effects collected on Rocky Flats during the 1976 and 1977 winter. The work has continued on two scales as in the previous two winters. Empirical surveys along 4 line transects during the second half of the winter support earlier conclusions that the frost susceptibility of the Rocky Flats soils is well keyed to topography. This has been used in testing a mapping procedure for potential soil frost activity in the entire Rocky Flats area. Instrumental records of weather and soil conditions have been maintained throughout the winter at the Lindsay Ranch study site, northwest of the Rocky Flats Plant. During the winter, 9 frost heave events have been recorded and are described here. This represents a low frequency of soil disturbance by frost and is accounted for by the drought conditions on the Colorado Piedmont during 1976 and 1977. Even the events which occurred were of relatively slight magnitude, a further reflection of the lack of soil moisture during the period.
Book Synopsis Landscape Erosion and Evolution Modeling by : Russell S. Harmon
Download or read book Landscape Erosion and Evolution Modeling written by Russell S. Harmon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landscapes are characterized by a wide variation, both spatially and temporally, of tolerance and response to natural processes and anthropogenic stress. These tolerances and responses can be analyzed through individual landscape parameters, such as soils, vegetation, water, etc., or holistically through ecosystem or watershed studies. However, such approaches are both time consuming and costly. Soil erosion and landscape evolution modeling provide a simulation environment in which both the short- and long-term consequences of land-use activities and alternative land use strategies can be compared and evaluated. Such models provide the foundation for the development of land management decision support systems. Landscape Erosion and Evolution Modeling is a state-of-the-art, interdisciplinary volume addressing the broad theme of soil erosion and landscape evolution modeling from different philosophical and technical approaches, ranging from those developed from considerations of first-principle soil/water physics and mechanics to those developed empirically according to sets of behavioral or empirical rules deriving from field observations and measurements. The validation and calibration of models through field studies is also included. This volume will be essential reading for researchers in earth, environmental and ecosystem sciences, hydrology, civil engineering, forestry, soil science, agriculture and climate change studies. In addition, it will have direct relevance to the public and private land management communities.
Book Synopsis Psychrophiles: From Biodiversity to Biotechnology by : Rosa Margesin
Download or read book Psychrophiles: From Biodiversity to Biotechnology written by Rosa Margesin and published by Springer. This book was released on 2017-06-22 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cold adaptation includes a complex range of structural and functional adaptations at the level of all cellular constituents, and these adaptations render cold-adapted organisms particularly useful for biotechnological applications. This book presents the most recent knowledge of (i) boundary conditions for microbial life in the cold, (ii) microbial diversity in various cold ecosystems, (iii) molecular cold adaptation mechanisms and (iv) the resulting biotechnological perspectives.
Book Synopsis Soil Freeze-Thaw Effects on Bank Erosion and Stability: Connecticut River Field Site, Norfolk, Vermont by :
Download or read book Soil Freeze-Thaw Effects on Bank Erosion and Stability: Connecticut River Field Site, Norfolk, Vermont written by and published by . This book was released on 2005 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bank recession resulting from surficial erosion and mass failure is a consequence of hydraulic forces and geotechnical processes. One important set of geotechnical processes in regions where seasonal frost forms is soil freeze-thaw (FT) cycling and associated ground-ice growth and melt. In cold regions soil FT processes usually cause more bank recession annually than other processes. The magnitude of FT effects is variable, depending on soil type, water content, and freezing rate. The banks along the Connecticut River at Norwich, Vermont are unstable and receding in certain locations. A 40-m-long segment of unstable east-facing bank was selected for intensive monitoring along with nearby north- and south-facing bank locations. This technical note documents our field observations, measurements, and analysis encompassing three years of monitoring. Our data acquisition equipment, focusing on FT processes, was installed in November through December 2002, and data collection continued through July 2005. The primary purposes of the field program were to evaluate: 1) the depth and duration of soil FT, and the effect of orientation and soil moisture on these parameters, 2) the effects of FT on soil strength and erosional processes, 3) the timing and depth of any slope failures of the east-facing bank, and 4) the hypothesis of soil FT as a primary contributor to slope failure. Results indicate that bank orientation and soil moisture can have dramatic effects on the depth, extent, and duration of soil freezing. FT of the monitored banks generally affected the soil to a depth of 0.75 m below the surface. The shallow nature of the bank erosion at this site is consistent with FT weakening of near surface soils. Subsequent rainfall and runoff are then able to readily move these sediments down slope causing progressive bank recession.
Book Synopsis Growth Control in Woody Plants by : Theodore T. Kozlowski
Download or read book Growth Control in Woody Plants written by Theodore T. Kozlowski and published by Elsevier. This book was released on 1997-01-21 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: The processes and mechanisms that control the growth of woody plants are of crucial importance for both economic and biological reasons. The comprehensive coverage of Growth Control in Woody Plants includes discussion of the growth controlling factors in both reproductive structures (flowers, fruit, seeds, pollen, etc.) and vegetative organs (stems, branches, leaves, and roots). Other major topics covered include seed germination, seedling growth, physiological and environmental regulation of growth, cultural practices, and biotechnology.This comprehensive treatment of the many factors that control the growth of woody plants can serve both as a valuable text and as a frequently used reference.* Includes comprehensive representation of a broad subject* Provides thorough bibliographic coverage * Well illustrated* Serves as a vital companion to Physiology of Woody Plants, Second Edition
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1976 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Survey of ... [various Counties, Etc.]. by :
Download or read book Soil Survey of ... [various Counties, Etc.]. written by and published by . This book was released on 1963 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ground Freezing Effects on Soil Erosion of Army Training Lands by : Lawrence W. Gatto
Download or read book Ground Freezing Effects on Soil Erosion of Army Training Lands written by Lawrence W. Gatto and published by . This book was released on 1997 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NUREG/CR. by : U.S. Nuclear Regulatory Commission
Download or read book NUREG/CR. written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1980 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Survey written by and published by . This book was released on 2004 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :CAgM Working Group on Meteorological Factors Associated with Certain Aspects of Soil Degradation and Erosion Publisher : ISBN 13 : Total Pages :176 pages Book Rating :4.3/5 (91 download)
Book Synopsis Meteorological Aspects of Certain Processes Affecting Soil Degradation, Especially Erosion by : CAgM Working Group on Meteorological Factors Associated with Certain Aspects of Soil Degradation and Erosion
Download or read book Meteorological Aspects of Certain Processes Affecting Soil Degradation, Especially Erosion written by CAgM Working Group on Meteorological Factors Associated with Certain Aspects of Soil Degradation and Erosion and published by . This book was released on 1983 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of the problem of soil degradation. Mechanisms and processes of soil degradation. Analysis of specfic meteorological factors affecting soil degradation. Degradation phenomena in selected climates.
Download or read book Science written by John Michels and published by . This book was released on 1922 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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