Author: Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 348
Book Description
Proceedings, International Symposium, Frozen Soil Impacts on Agricultural, Range, and Forest Lands
Author: Ground Freezing Effects on Soil Erosion of Army Training Lands
Author: Lawrence W. GattoPublisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 44
Book Description
Ground Freezing Effects on Soil Erosion of Army Training Lands: Part 1, Initial Test Results
Author: Publisher: DIANE Publishing
ISBN: 142891336X
Category :
Languages : en
Pages : 40
Book Description
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.
Permafrost Bibliography Update, 1988-1992
Author: Glaciological Data
Author: World Data Center A for GlaciologyPublisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 414
Book Description
Landscape Erosion and Evolution Modeling
Author: Russell S. HarmonPublisher: Springer Science & Business Media
ISBN: 1461505755
Category : Science
Languages : en
Pages : 120
Book Description
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.
Modelling Soil Erosion, Sediment Transport and Closely Related Hydrological Processes
Author: Wolfgang SummerPublisher: IAHS Press
ISBN: 9781901502503
Category : Sediment transport
Languages : en
Pages : 468
Book Description
Conservation Tillage in Temperate Agroecosystems
Author: M.R. CarterPublisher: CRC Press
ISBN: 1351367277
Category : Technology & Engineering
Languages : en
Pages : 406
Book Description
In this invaluable book, leading agronomic researchers provide in-depth reviews of present conservation tillage practices in a wide variety of temperate agroecosystems. Each chapter characterizes how conservation tillage has been developed and adapted or modified to fit specific environments, with the chapters divided into the following climate regions: Cool Humid, Cool Humid to Warm Humid, Warm Humid, and Sub-Humid to Semi-Arid Continental. Each chapter also discusses important topics such as weed problems, crop rotation, fertilizer requirements, soil properties and processes, soil erosion, soil chemistry, soil physics, and environmental issues. A perfect working reference, this resource provides a synthesis of existing research and practices and shows how soil, climatic, and biological constraints can be overcome or circumvented.
Host Bibliographic Record for Boundwith Item Barcode 30112050443578 and Others
Author: Principles of Soil Physics
Author: Rattan LalPublisher: CRC Press
ISBN: 9780824753245
Category : Technology & Engineering
Languages : en
Pages : 736
Book Description
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.