Application Of A Physically Based Erosion Model In The Design Of Soil And Water Conservation Structures For Semi Arid Non Mechanised Agriculture
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Author | : Food and Agriculture Organization of the United Nations |
Publisher | : Food & Agriculture Org. |
Total Pages | : 104 |
Release | : 2019-05-16 |
Genre | : Technology & Engineering |
ISBN | : 9251314268 |
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.
Author | : Walter H. Wischmeier |
Publisher | : |
Total Pages | : 70 |
Release | : 1978 |
Genre | : Agricultural conservation |
ISBN | : |
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.
Author | : |
Publisher | : |
Total Pages | : 1052 |
Release | : 1995 |
Genre | : Agriculture |
ISBN | : |
Author | : Kenneth G. Renard |
Publisher | : |
Total Pages | : 412 |
Release | : 1997 |
Genre | : Geophysical prediction |
ISBN | : |
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.
Author | : |
Publisher | : |
Total Pages | : 858 |
Release | : 1970 |
Genre | : Hydrology |
ISBN | : |
Author | : Frank M. D'Itri |
Publisher | : Springer |
Total Pages | : 414 |
Release | : 1985-10 |
Genre | : Nature |
ISBN | : |
Author | : Humberto Blanco-Canqui |
Publisher | : Springer Science & Business Media |
Total Pages | : 617 |
Release | : 2008-09-16 |
Genre | : Nature |
ISBN | : 1402087098 |
“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.
Author | : J. de Graaff |
Publisher | : |
Total Pages | : 322 |
Release | : 1996 |
Genre | : Soil conservation |
ISBN | : |
Author | : W. B. Hoogmoed |
Publisher | : |
Total Pages | : 208 |
Release | : 1999 |
Genre | : Agricultural conservation |
ISBN | : |
Chapter 3 gives a review of the various tillage systems as they may be applied for soil and water conservation, based the soil characteristics and on different mechanization levels.
Author | : |
Publisher | : |
Total Pages | : 1732 |
Release | : 1976 |
Genre | : Agriculture |
ISBN | : |