Download or read book Soil Erosion by Overland Flow with Rainfall written by Raúl Emilio Zapata and published by . This book was released on 1987 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanics of Soil Erosion from Overland Flow Generated by Simulated Rainfall written by Mustafa Kilinc and published by . This book was released on 1973 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanics of Soil Erosion from Overland Flow Generated by Simulated Rainfall written by Harold Ray Duke and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Erosion by Overland Flow and Raindrop Splash on Three Mountain Soils written by Eugene E. Farmer and published by . This book was released on 1971 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanics of Soil Erosion from Overland Flow Generated by Simulated Rainfall written by and published by . This book was released on 1973 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rainfall Simulation Runoff and Soil Erosion written by Jan de Ploey and published by . This book was released on 1983 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanics of Soil Erosion by Rainfall and Overland Flow as Influenced by Slope Runoff Rate and Particle Size written by Lawrence Donald Meyer and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Reduction Through Watershed Rehabilitation written by Edward L. Noble and published by . This book was released on 1963 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Erosion by Overland Flow and Raindrop Splash on Three Mountain Soils Classic Reprint written by Eugene E. Farmer and published by Forgotten Books. This book was released on 2017-10-28 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Soil Erosion by Overland Flow and Raindrop Splash on Three Mountain Soils A voluminous amount of literature exists on soil erosion from forest and range lands. A large portion of this literature has been concerned with soil factors and their effects on erosion. Bryan (1968) worked with 22 indices of soil erodibility that have been reported in the literature. He concluded that none of the soil indices was reliable in operation and capable of universal application. He expressed doubt that such an index could be developed, but concluded that the percentage weight of water-stable aggregates greater than 3 mm. In diameter was probably the most reliable index of soil erodibility available. Many important questions concerning the influence of soil factors on erosion proc esses remain unanswered. This situation is partially due to the fact that soil factors are difficult to isolate in the presence of vegetal factors. Another difficulty has been the multiplicity of soil erosion criteria. Weight of eroded soil, numerous measures of soil aggregation, stream turbidity, measurements from various types of erosion gages, and several soil indices have all been used as erosion criteria. In addition to vegetal cover and soil variables, the dominant factors controlling erosion are rainfall characteristics and topography. However, on forest and range lands, the effect of these two factors is not well known. Most of our information concerning rainfall factors and topographic factors has been obtained from studies on farmlands. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Rainfall Erosivity in Soil Erosion Processes written by Gianni Bellocchi and published by MDPI. This book was released on 2020-04-21 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers recent international research on the association between aggressive rainfall and soil loss and landscape degradation. Different contributions explore these complex relationships and highlight the importance of the spatial patterns of precipitation intensity on land flow under erosive storms, with the support of observational and modelling data. This is a large and multifaceted area of research of growing importance that outlines the challenge of protecting land from natural hazards. The increase in the number of high temporal resolution rainfall records together with the development of new modelling capabilities has opened up new opportunities for the use of large-scale planning and risk prevention methods. These new perspectives should no longer be considered as an independent research topic, but should, above all, support comprehensive land use planning, which is at the core of environmental decision-making and operations. Textbooks such as this one demonstrate the significance of how hydrological science can enable tangible progress in understanding the complexity of water management and its current and future challenges.
Download or read book Erosion Transport and Deposition Processes written by H.-R. Bork and published by . This book was released on 1991 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Symposium dedicated to Heinrich Rohdenburg was held in August and September 1989 at Königslutter, FRG. The papers contained in this volume are a selection of those presented at the symposium. Reflecting the wide range of geomorphological, hydrological, pedological, and geoecological research fields of Heiner Rohdenburg the papers of this Catena Supplement vary from general diagnoses and considerations concerning the evolution of landscapes, process studies in the laboratory and in the field to process-orientated models. Honouring the extraordinary, ecosystem-oriented work of Heiner Rohdenburg, the papers present the state of the art, indicating many directions for future research.
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 Mathematical Modeling of Soil Erosion by Rainfall and Shallow Overland Flow written by Tingting Zheng and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: New analytical and numerical solutions are developed to both the kinematic approximation to the St Venant equations and the Hairsine-Rose (HR) soil erosion model in order to gain a better physical understanding of soil erosion and sediment transport in shallow overland flow. The HR model is unique amongst physically based erosion models in that it is the only one that: considers the entire distribution of the soil s sediment size classes, considers the development of a layer of deposited non-cohesive sediment having different characteristics to the original underlying cohesive soil and considers separately the erosion processes of rainfall detachment, runoff entrainment and gravitational deposition. The method of characteristics and the method of lines were used to develop both the analytical and numerical solutions respectively. These solutions were obtained for boundary and initial conditions typical of those used in laboratory flume experiments along with physically realistic constant and time dependent excess rainfall rates. Depending on the boundary and initial conditions, interesting new solutions of the kinematic wave equation containing expansion waves, travelling shocks as well as solutions which split into an upslope and downslope drying profiles were found. Numerical solutions of the HR model were applied to the experimental flume data of Polyakov and Nearing (2003) obtained under flow conditions which periodically cycled between net erosion and net deposition conditions. While excellent agreement was found with suspended sediment data, the analysis suggested that an additional transport mechanisms, traditionally not included in soil erosion models, was occurring. While the inclusion of bed-load transport improved the ii overall model prediction, it was still not sufficient. Subsequent asymptotic analysis then showed that the interaction of the flow with an evolving bed morphology was in fact far more important than bed load transport. A very interesting finding from this work showed that the traditional criterion of validating sediment transport model based solely on suspended sediment data was not sufficient as reliable predictions could be obtained even when important transport mechanisms were neglected. Experimental plots of sediment discharge or suspended sediment concentration against water discharge in overland flow have been shown to contain significant hysteresis between the falling and rising limbs of the discharge hydrograph. In the final Chapter, the numerical solution developed for the complete system of soil erosion and kinematic flow was used to show that it was possible for the HR model to simulate three of the four hysteresis loops identified in the literature. Counter clock-wise loops, clock-wise loops and figure 8 loops could all be produced as a result of starting with different initial conditions, being mi(x; 0) = 0, mi(x; 0) = pimt and mi(x; 0) = 0:5pimt respectively. This is the first time that these types of hysteresis loops have been produced by any erosion model. The generation of these hysteresis loops are physically explainable in terms of sediment availability and is consistent with data obtained on the field scale.
Download or read book Hillslope Hydrology written by M. J. Kirkby and published by John Wiley & Sons. This book was released on 1978 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete guide to the behavior of water on graded land Hillslope Hydrology provides a comprehensive introduction to the behavior of water on a slope. Describing the fates of precipitation, the mechanics of runoff, and the calculations involved in assessment, this book clarifies the complex interplay of soils, sediment, subsurface flow, overland flow, saturation, erosion, and more. An ideal resource for graduate students of Earth science, environmental science, civil engineering, architecture, landscape management, and related fields, this informative guide provides the essential information needed to work effectively with graded land or predict outcomes of precipitation.
Download or read book Rainfall runoff and soil erosion in the globally extreme humid area Cherrapunji region India written by Leszek Starkel and published by IGiPZ PAN. This book was released on 2004 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Erosion written by Jürgen Schmidt and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerated degradation of soils and surface waters produce increasing problems in many parts of the world. Within this context, the book addresses the topic Application of Physically Based Soil Erosion Models in order to present some essential tools for improving land-use strategies and conservation measures. Over the last 20 years, the need for more accurate assessments of soil losses and sediment yields has led to the development of some highly complex, process-based soil erosion models. In 14 papers, specialists from 5 European countries, the USA and Brazil report on practical applications of these models and give insight into the latest developments. This book will help to implement state-of-the-art soil erosion prediction technologies within soil and water conservation planning and assessment. Hence, the book should be of special interest to agricultural and environmental engineers, hydrologists, soil scientists and geoscientists.
Download or read book Assessment of Erosion written by M. de Boodt and published by John Wiley & Sons. This book was released on 1980 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
