Frost heaving of tree seedlings

Frost heaving of tree seedlings

Author: L. J. Heidmann

Publisher:

Published: 1976

Total Pages: 20

ISBN-13:

DOWNLOAD EBOOK

Describes phenomenon. Suggested methods of control involve lowering freezing point of soil water or restricting water flow through soil to freezing front.


Reduction of Frost Heave by Surcharge Stress

Reduction of Frost Heave by Surcharge Stress

Author: George W. Aitken

Publisher:

Published: 1974

Total Pages: 36

ISBN-13:

DOWNLOAD EBOOK

The results of a six-year field test program conducted near Fairbanks, AK, to investigate the reduction in frost heave obtained by applying a surcharge stress on the soil are presented. Seasonal heaves of 25-ft-square test sections with nominal surcharge loads of 2, 4, 6, and 8 psi were compared with heaves at adjacent unloaded sections. The test sections were on a silt soil in an area where permafrost existed at about a seven-ft depth. Results showed that only a small surcharge load was needed to cause significant reductions in heave. Data are included that indicate that heave reduction was achieved by minimizing groundwater migration. A method for correlating field and laboratory rate-of-heave data is suggested. (Author).


Special Report

Special Report

Author: National Research Council (U.S.). Highway Research Board

Publisher:

Published: 1952

Total Pages: 306

ISBN-13:

DOWNLOAD EBOOK


Geotechnical Engineering Handbook, Procedures

Geotechnical Engineering Handbook, Procedures

Author: Ulrich Smoltczyk

Publisher: John Wiley & Sons

Published: 2003-03-14

Total Pages: 716

ISBN-13: 9783433014509

DOWNLOAD EBOOK

Volume 2 of the Handbook covers the geotechnical procedures used in manufacturing anchors and piles as well as for improving or underpinning foundations, securing existing constructions, controlling ground water, excavating rocks and earth works. It also treats such specialist areas as the use of geotextiles and seeding.


Highway Pavement Design in Frost Areas

Highway Pavement Design in Frost Areas

Author: National Research Council (U.S.). Highway Research Board

Publisher:

Published: 1959

Total Pages: 152

ISBN-13:

DOWNLOAD EBOOK

The information presented herein concerns the basic considerations of the frost action problem: namely, water temperature, soil, and the freezing mechanism of soil-water systems.


Food Security and Land Use Change under Conditions of Climatic Variability

Food Security and Land Use Change under Conditions of Climatic Variability

Author: Victor R. Squires

Publisher: Springer Nature

Published: 2020-05-12

Total Pages: 358

ISBN-13: 3030367622

DOWNLOAD EBOOK

This volume analyzes the global challenges of food security, land use changes, and climate change impacts on food production in order to recommend sustainable development policies, anticipate future food services and demands, and identify the economic benefits and trade-offs of meeting food security demands and achieving climate change mitigation objectives. The key points of analysis that form the conclusions of this book are based on measuring the quantity and quality of land and water resources, and the rate of use of sustainable management of these resources in the context of socio-economic factors, including food security, poverty, and climate change impacts. In six parts, readers will learn about these crucial dimensions of the affects of climate change on food security, and will gain a better understanding of how to assess the trade-offs when combating multiple climate change challenges and how to develop sustainable solutions to these problems. The book presents multidimensional perspectives from expert contributors, offering holistic and strategic approaches to link knowledge on climate change and food security with action in the form of policy recommendations, with a focus on sociological and socio-economic components of climate change impacts. The intended audience of the book includes students and researchers engaged in climate change and food security issues, NGOs, and policy makers.