Описание: This report examines the scientific basis for the use of remotely sensed data, particularly Normalized Difference Vegetation Index (NDVI), primarily for the assessment of land degradation at different scales and for a range of applications, including resilience of agro-ecosystems.
Автор: Eva Nora Mueller; John Wainwright; Anthony J. Pars Название: Patterns of Land Degradation in Drylands ISBN: 9400799616 ISBN-13(EAN): 9789400799615 Издательство: Springer Рейтинг: Цена: 14365.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: A vital, multi-disciplinary addition to the literature, this ground-breaking publication studies a problem faced by two billion people, interweaving ecology and geomorphology for a better grasp of the environmental and anthropogenic causes of land degradation.
Описание: This book report research results in sustainable land management and land degradation status and mitigation in 36 countries around the world. It includes also background papers with continental and international perspectives dealing with land degradation and desertification studies. The book assembles various topics of interest for a large audience. They include carbon sequestration and stocks, modern techniques to trace the trends of land degradation, traditional and modern approaches of resource-base conservation, soil fertility management, reforestation, rangeland rehabilitation, land use planning, GIS techniques in desertification risk cartography, participatory ecosystem management, policy analyses and possible plans for action. It covers various climatic domains in Africa, Asia, Europe and The Americas. The book will be of interest to a variety of environmental scientists, agronomists, national and international policy makers and a number of organizations dealing with sustainable management of natural resources.
Описание: This book report research results in sustainable land management and land degradation status and mitigation in 36 countries around the world. It includes also background papers with continental and international perspectives dealing with land degradation and desertification studies. The book assembles various topics of interest for a large audience. They include carbon sequestration and stocks, modern techniques to trace the trends of land degradation, traditional and modern approaches of resource-base conservation, soil fertility management, reforestation, rangeland rehabilitation, land use planning, GIS techniques in desertification risk cartography, participatory ecosystem management, policy analyses and possible plans for action. It covers various climatic domains in Africa, Asia, Europe and The Americas. The book will be of interest to a variety of environmental scientists, agronomists, national and international policy makers and a number of organizations dealing with sustainable management of natural resources.
Автор: Kam-Tim Chau; Jidong Zhao Название: Bifurcation and Degradation of Geomaterials in the New Millennium ISBN: 3319135058 ISBN-13(EAN): 9783319135052 Издательство: Springer Рейтинг: Цена: 26122.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Simulations of shear zones and cracks in engineering materials using extended Finite Element Method.- Discrete modelling of micro-structural phenomena in granular shear zones.- Modelling hydromechanical dilation geomaterial - cavitation and localization.- Fabric evolution and its effect on strain localization in sand.- Micro-mechanical observations of strain localization in granular soils during simple shear loading.- Grainsize evolution in open systems.- Numerical modeling of failure process in cohesive geomaterials.- Hydromechanical modelling of an initial boundary value problem: Studies of non-uniqueness with a second gradient continuum.- A FE model for hydro-mechanical coupling.- Numerical simulation and length scale calibration of micropolar hypoplastic model.- Micromechanical analysis of second order work in granular media.- Stability and bifurcation in reinforced boreholes.- Shear banding in torsion shear tests on cross-anisotropic deposits of fine Nevada sand.- Effects of flooding on crushable sand.- Numerical analysis of 1D seepage failure process of sandy materials by CWENO method.- Mechanisms of deformation in porous rocks at the grain scale.- The influence of fines content on the onset of instability and critical state line of silty sand.- A multiscale investigation of strain localization in cohesionless sand.- The effect of rotational degrees of freedom on the formation of deformation patterns in granular materials using digital image correlation.- Stick-slip motion and the associated frictional instability caused by vertical oscillations.- Investigation of direct shear interface test using micro-polar continuum approach.- Energy criterion of in-plane fracture propagation in geomaterials with rotating particles.- Dynamic instability in geomaterials associated with the presence of negative stiffness elements.- Numerical modeling of particle breaking process in granular materials: compaction and evolution of size distribution.- Onset of strain localization in unsaturated soils subjected to constant water content loading.- Double-scale assessment of micro-mechanics based constitutive models for granular materials undergoing mechanical degradation.- Hypoplastic constitutive modelling of grain damage under plane shearing.- Hierarchy of failure indicators in the failure analysis of geomaterials.- Static liquefaction of granular soils: the role of grain shape and size.- Static liquefaction and instability in granular media subjected to monotonic loading - A micromechanical investigation.- Capillary effect on critical length of force chains in partially saturated granular materials within the pendular regime.- Study on the initiation of strain localization in soils by 3D non-coaxial plasticity.- Micromechanics-based constitutive modeling and DEM simulation of localized failure in soil.- Thermally induced deformation and failure in shale under drained and undrained heating.- Instability of dissociation process of methane hydrate bearing soil.- Development of image analysis tools to evaluate in-situ evolution of the grain size distribution in sand subjected to breakage.- FEMНDEM multi-scale analysis of boundary value problems involving strain localization.- Evolution of packing structure in cyclic mobility and post-liquefaction of granular soils.- Experimental versus finite element approach to study scale dependent features in granular materials' stress and deformation fields.- Onset of strain localization in fiber reinforced composites subjected to plane stress loading.- Using shear strain localisation to model the fracturing around gallery in unsaturated Callovo-Oxfordian claystone.- Experimental study on the behavior of a plasticine material.- Thermodynamic analysis of instability in unsaturated soils.- Plastic deformations in granular materials with rotation of principal stress axes.- A framework to assess the controllability of wetting on unsaturated collapsible soils.- Model tensile cracking in soil
Автор: Janet Hooke; Peter Sandercock Название: Combating Desertification and Land Degradation ISBN: 3319444492 ISBN-13(EAN): 9783319444499 Издательство: Springer Рейтинг: Цена: 7685.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book reports an approach developed to research and apply methods of assessing patterns of processes in the landscape, and suitability of different types of vegetation to mitigate soil erosion and sediment flux.
Автор: St?phane Bonelli; Cristian Dascalu; Fran?ois Nicot Название: Advances in Bifurcation and Degradation in Geomaterials ISBN: 9400737793 ISBN-13(EAN): 9789400737792 Издательство: Springer Рейтинг: Цена: 22201.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Preface; Introduction; Instability and bifurcation for inelastic geomaterials, by R. Chambon; Part 1 Micromechanical origins and multiscale analysis of instabilities in geomaterials; Deciphering D'Alemberts dream: new tools for uncovering rules for self-organized pattern formation in geomaterials, by A. Tordesillas and D. M. Walker; Microscopic origins of shear strength in packings composed of elongated particles, by E. Azйma, F. Radjai; Multi-Scale Analysis of Instability in Sand, by C. S. Chang, Z.-Y. Yin and P-Y. Hicher; Observation of Microstructural Changes and Strain Localization of Unsaturated Sands Using Microfocus X-ray CT, by Y. Higo, F. Oka, S. Kimoto, T. Sanagawa and Y. Matsuhima; Signature of Anisotropy in Liquefiable Sand under Undrained Shear, by J. Zhao & N. Guo; Friction and localization associated with non- spherical particles, by A.V. Dyskin and E. Pasternak; Length scales for nonaffine deformation in localized, granular shear, by A. L. Rechenmacher, Sara Abedi;Discovering community structures and dynamical networks from grain-scale kinematics of shear bands in sand, by A. Tordesillas, D. M. Walker, A. Rechenmacher and S. Abedi; Slip and dislocation in crystalline solids as precursors to localized deformation, by R. I. Borja, H. Rahmani, F. Liu; Part 2 Geo-environmental applications; A Chemo-Thermo-Mechanically Coupled Behavior during Gas Hydrate Dissociation and its Numerical Analysis, by S. Kimoto, F. Oka, Y. Miki, T. Fukuda and H. Iwai; Stability of nail reinforced boreholes, by E. Papamichos; Stability analysis of creeping faults: the role of chemical decomposition of minerals, by J. Sulem, N. Brantut; Onset of immersed granular avalanches by DEM-LBM approach, by J.-Y. Delenne, M. Mansouri, F. Radjai, M. S. El Youssoufi, A. Seridi; Multi-scale periodic homogenization of ionic transfer in cementitious materials, by K. Bourbatache, O. Millet, A. Aпt-Mokhtar; Chimney of fluidization and "sandboil" in a granular soil, by P. Philippe and M. Badiane; Experimental study of contact erosion at a granular interface, by R. Beguinabc, P. Philippe and Y-H. Faure; Numerical modeling of hydrofracturing using the damage theory, by A. Guest and A. Settari; Polydisperse segregation down inclines: towards degradation models of granular avalanches, by B. Marks, I. Einav and P. Rognon; Numerical Modelling of Interaction between Snow Avalanche and Protective Structures, by M. Wawra, Y. Wang, W. Wu; Crack propagations on the rock face at Glacier Point of the Yosemite National Park after the 1999 rockfall, by K.T. Chau and P. Lin; Soil - Machine Interaction: Simulation and Testing, by M. Alsaleh; Part 3 Numerical modeling of failure and localized deformation in geomaterials; Multiscale Semi-Lagrangian Reproducing Kernel Particle Method for Modeling Damage Evolution in Geomaterials, by J. S. Chen, P. C. Guan, S. W. Chi, X. Ren, M. J. Roth, T. R. Slawson, M. Alsaleh; Tunnel excavation modeling with micromechanical approaches, by S. Levasseur, F. Collin, R. Charlier, D. Kondo; Coupling discrete elements and micropolar continuum through an overlapping region in one dimension, by Richard A. Regueiro and Beichuan Yan; On the numerical implementation of a multi-mechanism cyclic plasticity model associated to a dilation second gradient model aiming strain localization mitigation, by A. Foucault, F. Voldoire and A. Modaressi; 2 D and 3 D modelling of geomaterials using a second gradient dilation model, by R. Fernandes, B. Ducoin and R. Chambon; Local second gradient models for thermo-hydro-mechanical coupling in rock like materials, by Y. Sieffert, F. Marinelli, R. Chambon; Two scale model (fem-dem) for granular media, by M. Nitka, G. Combe, C. Dascalu and J. Desrues; Finite element modelling of material instability via an enriched elastoplastic model, by R. Wan and M. Pinheiro; Comprehensive DEM study of the effects of rolling resistance on strain localization in granular materials, by M. Gutierrez and M. Abdalsala
Автор: Euripides Papamichos; Panos Papanastasiou; Elena P Название: Bifurcation and Degradation of Geomaterials with Engineering Applications ISBN: 3319563963 ISBN-13(EAN): 9783319563961 Издательство: Springer Рейтинг: Цена: 39130.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book contains the scientific contributions to the 11th International Workshop on Bifurcation and Degradation in Geomaterials (IWBDG) held in Limassol-Cyprus, May 21-25, 2017.
Автор: Khan Towhid Osman Название: Soil Degradation, Conservation and Remediation ISBN: 940077589X ISBN-13(EAN): 9789400775893 Издательство: Springer Рейтинг: Цена: 15672.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Soil is a fundamental resource that urgently needs to be protected and, where damaged, restored. This text gives readers a comprehensive understanding of soil conservation including its long-term benefits to agriculture and its role in terrestial ecosystems.
Автор: Kam-Tim Chau; Jidong Zhao Название: Bifurcation and Degradation of Geomaterials in the New Millennium ISBN: 3319356402 ISBN-13(EAN): 9783319356402 Издательство: Springer Рейтинг: Цена: 22201.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Simulations of shear zones and cracks in engineering materials using extended Finite Element Method.- Discrete modelling of micro-structural phenomena in granular shear zones.- Modelling hydromechanical dilation geomaterial - cavitation and localization.- Fabric evolution and its effect on strain localization in sand.- Micro-mechanical observations of strain localization in granular soils during simple shear loading.- Grainsize evolution in open systems.- Numerical modeling of failure process in cohesive geomaterials.- Hydromechanical modelling of an initial boundary value problem: Studies of non-uniqueness with a second gradient continuum.- A FE model for hydro-mechanical coupling.- Numerical simulation and length scale calibration of micropolar hypoplastic model.- Micromechanical analysis of second order work in granular media.- Stability and bifurcation in reinforced boreholes.- Shear banding in torsion shear tests on cross-anisotropic deposits of fine Nevada sand.- Effects of flooding on crushable sand.- Numerical analysis of 1D seepage failure process of sandy materials by CWENO method.- Mechanisms of deformation in porous rocks at the grain scale.- The influence of fines content on the onset of instability and critical state line of silty sand.- A multiscale investigation of strain localization in cohesionless sand.- The effect of rotational degrees of freedom on the formation of deformation patterns in granular materials using digital image correlation.- Stick-slip motion and the associated frictional instability caused by vertical oscillations.- Investigation of direct shear interface test using micro-polar continuum approach.- Energy criterion of in-plane fracture propagation in geomaterials with rotating particles.- Dynamic instability in geomaterials associated with the presence of negative stiffness elements.- Numerical modeling of particle breaking process in granular materials: compaction and evolution of size distribution.- Onset of strain localization in unsaturated soils subjected to constant water content loading.- Double-scale assessment of micro-mechanics based constitutive models for granular materials undergoing mechanical degradation.- Hypoplastic constitutive modelling of grain damage under plane shearing.- Hierarchy of failure indicators in the failure analysis of geomaterials.- Static liquefaction of granular soils: the role of grain shape and size.- Static liquefaction and instability in granular media subjected to monotonic loading - A micromechanical investigation.- Capillary effect on critical length of force chains in partially saturated granular materials within the pendular regime.- Study on the initiation of strain localization in soils by 3D non-coaxial plasticity.- Micromechanics-based constitutive modeling and DEM simulation of localized failure in soil.- Thermally induced deformation and failure in shale under drained and undrained heating.- Instability of dissociation process of methane hydrate bearing soil.- Development of image analysis tools to evaluate in-situ evolution of the grain size distribution in sand subjected to breakage.- FEMНDEM multi-scale analysis of boundary value problems involving strain localization.- Evolution of packing structure in cyclic mobility and post-liquefaction of granular soils.- Experimental versus finite element approach to study scale dependent features in granular materials' stress and deformation fields.- Onset of strain localization in fiber reinforced composites subjected to plane stress loading.- Using shear strain localisation to model the fracturing around gallery in unsaturated Callovo-Oxfordian claystone.- Experimental study on the behavior of a plasticine material.- Thermodynamic analysis of instability in unsaturated soils.- Plastic deformations in granular materials with rotation of principal stress axes.- A framework to assess the controllability of wetting on unsaturated collapsible soils.- Model tensile cracking in soil
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