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.

Download or read book USDA Water Erosion Prediction Project written by L. J. Lane and published by . This book was released on 1989 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Soil Erosion by Water written by Kenneth G. Renard and published by . This book was released on 1997 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction and history; Rainfall-runoff erosivity factor (R); Soil erodibility factor (K); Slope length and steepness factors (LS); Cover-management factor (C); Support practice factor (P); RUSLE user guide; Coversion to SI metric system; Calculation of EI from recording-raingage records; Estimating random roughness in the field; Parameter values for major agricultural crops and tillage operations.

Download or read book Root Zone Water Quality Model written by Lajpat Ahuja and published by Water Resources Publication. This book was released on 2000 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication comes with computer software and presents a comprehensive simulation model designed to predict the hydrologic response, including potential for surface and groundwater contamination, of alternative crop-management systems. It simulates crop development and the movement of water, nutrients and pesticides over and through the root zone for a representative unit area of an agricultural field over multiple years. The model allows simulation of a wide spectrum of management practices and scenarios with special features such as the rapid transport of surface-applied chemicals through macropores to deeper depths and the preferential transport of chemicals within the soil matrix via mobile-immobile zones. The transfer of surface-applied chemicals (pesticides in particular) to runoff water is also an important component.

Download or read book Predicting Rainfall Erosion Losses written by Walter H. Wischmeier and published by . This book was released on 1978 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Universal Soil Loss Equation (USLE) enables planners to predict the average rate of soil erosion for each feasible alternative combination of crop system and management practices in association with a specified soil type, rainfall pattern, and topography. When these predicted losses are compared with given soil loss tolerances, they provide specific guidelines for effecting erosion control within specified limits. The equation groups the numerous interrelated physical and management parameters that influence erosion rate under six major factors whose site-specific values can be expressed numerically. A half century of erosion research in many States has supplied information from which at least approximate values of the USLE factors can be obtained for specified farm fields or other small erosion prone areas throughout the United States. Tables and charts presented in this handbook make this information readily available for field use. Significant limitations in the available data are identified.

Download or read book Principles of Soil Conservation and Management written by Humberto Blanco-Canqui and published by Springer Science & Business Media. This book was released on 2008-09-16 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Principles of Soil Management and Conservation” comprehensively reviews the state-of-knowledge on soil erosion and management. It discusses in detail soil conservation topics in relation to soil productivity, environment quality, and agronomic production. It addresses the implications of soil erosion with emphasis on global hotspots and synthesizes available from developed and developing countries. It also critically reviews information on no-till management, organic farming, crop residue management for industrial uses, conservation buffers (e.g., grass buffers, agroforestry systems), and the problem of hypoxia in the Gulf of Mexico and in other regions. This book uniquely addresses the global issues including carbon sequestration, net emissions of CO2, and erosion as a sink or source of C under different scenarios of soil management. It also deliberates the implications of the projected global warming on soil erosion and vice versa. The concern about global food security in relation to soil erosion and strategies for confronting the remaining problems in soil management and conservation are specifically addressed. This volume is suitable for both undergraduate and graduate students interested in understanding the principles of soil conservation and management. The book is also useful for practitioners, extension agents, soil conservationists, and policymakers as an important reference material.

Download or read book A Compendium of Soil Erodibility Data from WEPP Cropland Soil Field Erodibility Experiments 1987 88 written by William J. Elliot and published by . This book was released on 1990 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modelling Soil Erosion by Water written by John Boardman and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Soil Erosion and Sediment Redistribution in River Catchments written by Philip Neil Owens and published by CABI. This book was released on 2006 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: There can be little doubt that issues relating to soils and sediments are moving up the political agenda, and a realization that we need to collectively manage and protect both soil and water resources. In order to manage this delicate interface, attention is being increasingly directed towards holistic land-river management, demanding a greater appreciation of the interaction between soils and sediments. This book reviews the major achievements recently made in soil erosion and sediment redistribution research and management, and identifies future requirements.

Download or read book Modelling Soil Erosion by Water written by John Boardman and published by Springer Science & Business Media. This book was released on 1998 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Section 1. Background to the Model Evaluation.- 1. Modelling Soil Erosion by Water.- 2. Towards an Improved Predictive Capability for Soil Erosion under Global Change.- 3. Modelling Soil Erosion in Real Landscapes: a Western European Perspective.- Section 2. Model Evaluation with Common Datasets.- 4. Evaluation of Plot Runoff and Erosion Forecasts using the CSEP and MEDRUSH Models.- 5. Evaluation of the Water Erosion Prediction Project (WEPP) Model for Hillslopes.- 6. GLEAMS Model Evaluation - Hydrology and Erosion Components.- 7. EUROSEM: an Evaluation with Single Event Data from the C5 Watershed, Oklahoma, USA.- 8. Comparison of Simulated and Observed Runoff and Soil Loss on Three Small United States Watersheds.- 9. Validation of Field-Scale Soil Erosion Models using Common Datasets.- Section 3. Model Evaluation with User-Supplied Datasets.- 10. Predicting Runoff in Semiarid Woodlands: Evaluation of the WEPP Model.- 11. Evaluation of Field-Scale Erosion Models on the UK South Downs.- Section 4. Modelling Issues.- 12. Modelling Across Scales: the MEDALUS Family of Models.- 13. Problems Regarding the Use of Soil Erosion Models.- 14. Cross-Scale Aspects of EPA Erosion Studies.- 15. Scale Issues and a Scale Transfer Method for Erosion Modelling.- 16. Infiltration for Soil Erosion Models: Some Temporal and Spatial Complications.- 17. Saturation Overland Flow on Loess Soils in the Netherlands.- 18. Incorporating. Crusting Processes in Erosion Models.- 19. The Role of Soil Aggregates in Soil Erosion Processes.- 20. Process-Based Approaches to Modelling Soil Erosion.- 21. Sensitivity of Sediment-Transport Equations to Errors in Hydraulic Models of Overland Flow.- 22. Gully Erosion: Importance and Model Implications.- 23. Field Data and Erosion Models.- 24. Effects of Agricultural Land Use on Spatial and Temporal Distribution of Soil Erosion in Small Catchments: Implications for Modelling.- 25. Sensitivity of the Model LISEM to Variables Related to Agriculture.- 26. Applying GIS to Catchment-Scale Soil Erosion Modelling.- 27. Snowmelt and Frozen Soils in Simulation Models.- 28. The Use of USLE Components in Models.- Section 5. Model Descriptions.- 29. The EUROSEM Model.- 30. Griffith University Erosion System Template (GUEST).- 31. A Continuous Catchment-Scale Erosion Model.- 32. LISEM: a Physically-Based Hydrologic and Soil Erosion Catchment Model.- 33. APEX: a New Tool for Predicting the Effects of Climate and CO2 Changes on Erosion and Water Quality.- 34. A Dynamic Model of Gully Erosion.- 35. Alternative Approaches to Soil Erosion Prediction and Conservation Using Expert Systems and Neural Networks.- Section 6. Model Applications: Actual and Potential.- 36. Soil Erosion Modelling in Hungary.- 37. Definition and Mapping of Desertification Units in Mediterranean Areas Under Rainfed Cereals.- 38. Hydrological and Erosion Processes in the Research Catchments of Vallcebre (Pyrenees).- Section 7. Conclusions.- 39. Modelling Soil Erosion by Water: Some Conclusions.- Appendices.- A. List of Acronyms Used.- B. Participants at 'Global Change: Modelling Soil Erosion by Water'.

Download or read book Erosion and Sediment Transport Measurement in Rivers written by Jim Bogen and published by . This book was released on 2003 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Hydrology Land Use and Agriculture written by Manoj Shukla and published by CABI. This book was released on 2011 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agriculture is strongly affected by changes in soil hydrology as well as changes in land use and management practices and the complex interactions between them. This book aims to develop an understanding of these interactions on a watershed scale, using soil hydrology models and addresses the consequences of land use and management changes on agriculture from a research perspective. It includes case studies that illustrate the impact of land use and management on various soil hydrological parameters under different climates and ecosystems. It is suitable for researchers and students in soil sc

Download or read book Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters written by United States. Environmental Protection Agency and published by . This book was released on 1993 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diagnosis and Improvement of Saline and Alkali Soils written by L. E. Allison and published by . This book was released on 1947 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Water and Crop livestock Management Systems for Rainfed Agriculture in the Near East Region written by and published by . This book was released on 1989 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil erosion the greatest challenge for sustainable soil management written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-05-16 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite almost a century of research and extension efforts, soil erosion by water, wind and tillage continues to be the greatest threat to soil health and soil ecosystem services in many regions of the world. Our understanding of the physical processes of erosion and the controls on those processes has been firmly established. Nevertheless, some elements remain controversial. It is often these controversial questions that hamper efforts to implement sound erosion control measures in many areas of the world. This book, released in the framework of the Global Symposium on Soil Erosion (15-17 May 2019) reviews the state-of-the-art information related to all topics related to soil erosion.

Download or read book Handbook of Erosion Modelling written by R. P. C. Morgan and published by John Wiley & Sons. This book was released on 2016-04-13 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The movement of sediment and associated pollutants over thelandscape and into water bodies is of increasing concern withrespect to pollution control, prevention of muddy floods andenvironmental protection. In addition, the loss of soil on site hasimplications for declining agricultural productivity, loss ofbiodiversity and decreased amenity and landscape value. The fate ofsediment and the conservation of soil are important issues for landmanagers and decision-makers. In developing appropriate policiesand solutions, managers and researchers are making greater use oferosion models to characterise the processes of erosion and theirinteraction with the landscape. A study of erosion requires one to think in terms ofmicroseconds to understand the mechanics of impact of a singleraindrop on a soil surface, while landscapes form over periods ofthousands of years. These processes operate on scales ofmillimetres for single raindrops to mega-metres for continents.Erosion modelling thus covers quite a lot of ground. This bookintroduces the conceptual and mathematical frameworks used toformulate models of soil erosion and uses case studies to show howmodels are applied to a variety of purposes at a range of spatialand temporal scales. The aim is to provide land managers and otherswith the tools required to select a model appropriate to the typeand scale of erosion problem, to show what users can expect interms of accuracy of model predictions and to provide anappreciation of both the advantages and limitations of models.Problems covered include those arising from agriculture, theconstruction industry, pollution and climatic change and range inscale from farms to small and large catchments. The book will alsobe useful to students and research scientists as an up-to-datereview of the state-of-art of erosion modelling and, through aknowledge of how models are used in practice, in highlighting thegaps in knowledge that need to be filled in order to develop evenbetter models.