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Subject listing for: Soil Erosion |
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The Wet Tropics (i.e. the Southeast Asian monsoon belt) is subjected to one of the most intense and frequent rainfall incidences in the world. Infrastructure projects in this region are known to be fraught with rainfall-induced erosion, shallow mass movement or deep-seated stability problems caused by the absence of protective natural vegetation. Conventional ‘hard’ approach for solving these problems is gradually giving way to ‘soft’ or ‘bioengineering’ approach due to concern over the degradation of the environment coupled with the fact that more knowledge on vegetation, especially from the engineering aspects, has now come to light.
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Este informe presenta detalles de como y cuando preparar canales o zanjas trazadas sobre curvas a nivel en una manera menos costosa que hacerlas de forma manual. Experiencia en conservación del suelo compartido por Programa Regional de Fomento de la Tracción Animal, FOMENTA.
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Seis fichas técnicas sobre laboreo de conservacion; siembra directa; cubiertas vegetales y control de erosión.
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This article discusses agroforestry and includes definitions of the major types of agroforestry practices, a section on business concens, and references for further information.
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This site is the Purdue University (USA) Agronomy Extension publications list. Most of the publications are available on-line and include topics such as alternative crops, conservation tillage, erosion control, pests and pesticides, soils, and weeds. The publications may also be purchased.
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This article gives an overview of alley cropping in the tropics. It includes an interview with Dr. P. K. Nair about an ICRAF report saying alley cropping has been too widely promoted in areas where it is not suitable. Free user ID necessary to access site.
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This Texas A&M University Technical Bulletin assesses the effectiveness of some of the soil and water conservation techniques being used by the LUPE (Land Use Productivity Enhancement) project in southern Honduras.
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A brief on-line article on the use of bamboos in agroforestry, including erosion control barriers and soil conservation. There are several links to other Web resources on bamboo.
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Primer cartel con dibujos sobre métodos para controlar la erosión. Sección del libro en internet "Mejorando la Nutrición a través de Huertos y Granjas Familiares: manual de capacitación para trabajadores de campo en América Latina y el Caribe" (FAO, 2000).
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Iowa State University Extension pamphlet provides detailed information on conservation buffers and how it relates to soil quality.
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Iowa State University Extension Service pamphlet provides information on considerations when deciding on a no-till system, including weed control, residue management, equipment, nutrients and economic returns. (pdf only).
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Published by Colorado State University in 2001, this fact sheet outlines the causes and consequences of wind erosion, and discusses possible control and reduction measures.
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Colorado State University Extension Fact Sheet explains soil erosion from wind, barriers that can be set up, and the use of ridges, cover crops and crop residues to help control erosion.
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A paper on the devastating ecological impacts to Central America brought about by Hurricane Mitch
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In pdf format, this paper on alley cropping with long-term tree crops and agricultural crops is part of the proceedings of Wind Erosion: An International Symposium/Workshop held at Kansas State University (USA) in 1997.
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Published in the Indigenous Knowledge and Development Monitor, this illustrated report of a case study carried out in Zululand, South Africa looked at farmer and scientist perceptions on soil erosion.
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Este estudio evaluó, bajo lluvia simulada, las pérdidas de suelos y agua donde se aplicaron coberturas de barbecho mejorado solas o combinadas con estiércol de pollo, en calidades y cantidades diferentes. Los residuos utilizados fueron de Crotalaria juncea y Cajanus cajan. Revista VENESUELOS (1996).
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Kansas State Research and Extension provides a report detailing information on wind erosion control through the use of mulching, as well as using emergency tillage as a last resort to control wind erosion.
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En Visayas oriental los agricultores prefieren utilizar la técnica de cultivo que se adopta en las tierras agrícolas en declive y los sistemas de cultivo en hileras, que se consideran métodos adecuados para la agrosilvicultura.
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Dans les Visayas orientales, les agriculteurs ont opté pour la technique des cultures sur pentes et les programmes de cultures en bandes comme programmes agroforestiers appropriés. La préférence des agriculteurs pour cette technique et les cultures en bandes s'explique par la possibilité d'obtenir un meilleur revenu en espèces grâce aux programmes agroforestiers et par le fait que ces cultures donnent de bons rendements.
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This 126 page extension bulletin provides information on sustainable soil moisture management, with an emphasis on tropics and sub-tropics. FAO, 2003, pdf format.
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This paper, based on the author's MSc thesis, discusses a study of farmer perceptions of agroforestry adoption for soil erosion control.
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An on-line version of a book published by the Food and Agriculture Organization of the United Nations. Includes such topics as experimental design, reconnaissance methods, field plots, streamflow, sediment transport, rainfall simulators, and estimating from models. there is a list of references.
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This on-line slide show follows the history of wind erosion research by the US Department of Agriculture at Kansas State University.
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This site has information on soil erosion and its damaging impact on fires. Increased soil erosion can be an important damaging impact of intense fire late in the dry season. The storms of the following wet season, initially striking soil bared by the fire, are likely to wash substantial quantities of topsoil and ash into streams. Results include a loss of nutrients from the land and reduced stream water quality. This site has links to publications, brochures, events, websites, and newsletters.
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Global Change and Terrestrial Ecosystem (GCTE) Focus 3 involves interdisciplinary research to improve our general predictive ability for selected agronomic species, grasslands and rangelands; for multi-species cropping systems; for managed forests; for major pests, diseases and weeds; and for soils. The research results will help national programmes to plan site-related management strategies and adaptive research for both today's rapidly changing environment, and for future conditions. The work of this Focus will interact with, and strongly build on, the very large body of existing and ongoing agronomic and forestry related work throughout the world.
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This site contains a thorough scientific description of alley cropping's problems and potentials in the humid and sub-humid tropics.
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This is a global assessment report of wind and water erosion. The global assessment of wind and water erosion reported in this empirical study employs a simplified model considering only soil and climatic variables. The purpose is to obtain global and regional estimates of areas of land susceptible to different intensities of erosion. By relating to population densities, the areas of high risk for water erosion are demarcated on maps and they help to identify regions that require additional attention to conservation. The actual intensity of erosion is a function of many factors, the most important of which is the level of management as determined partly by the socioeconomic status of the land users. The relationship between erosion vulnerability and the inherent land quality (ILQ) is employed to compute magnitudes of global soil loss through water erosion.
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The global assessment of wind and water erosion reported in this empirical study employs a simplified model considering only soil and climatic variables. The purpose is to obtain global and regional estimates of areas of land susceptible to different intensities of erosion. By relating to population densities, the areas of high risk for water erosion are demarcated on maps and they help to identify regions that require additional attention to conservation. The actual intensity of erosion is a function of many factors, the most important of which is the level of management as determined partly by the socioeconomic status of the land users. The relationship between erosion vulnerability and the inherent land quality (ILQ) is employed to compute magnitudes of global soil loss through water erosion.
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This paper (pdf) originally published in the Journal of Range Management in 1990 discusses a study assessing seasonal hydrologic responses of the arid Somali rangelands as influenced by clay and sandy soils, grazing intensity, and shrub cover types.
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This 1997 proceedings of an expert consultation was published by FAO in 1999 in a pdf format (the 407 page document takes several minutes to download). It contains maps
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This is a searchable homepage for IUFRO (International Union of Forest Research Organizations). IUFRO is a network of forest scientists who work to promote international cooperation on forestry and forest product research. The site provides links to regional offices, publications, newsletters, other organizations, events, and news.
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An overview of Vigna unguiculata (cowpea)
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This FAO soils bulletin (50) discusses the causes and implications of soil erosion, aspects of soil conservation, and aims and techniques of soil management.
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Cet article édité par GTZ dans 2001 décrit la recherche dans la praticabilité d'utilisation des images satellites pour étudier les results des measures anti-erosives et rehabilitation des terres degradees au Niger.
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Manual disponible en internet con enlaces a hojas de información y cartillas tecnológicas ilustradas sobre manejo de suelos, agua, y malezas mejoramiento del suelo uso de terrenos en ladera cultivos de cobertura y cultivos asociados.
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The National Soil Erosion Research Laboratory or NSERL is the facility for the US Government's national research program in soil erosion. It is located on the Purdue University campus in West Lafayette, Indiana.
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Captioned "The Farmer Speaks", this page is about a farmer's experience and approach to no-till. There are also links to proceedings from conferences that this farmer has spoken at.
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This site is a table of contents for an on-line handbook providing information on new research developments on conservation farming systems in the Pacific Northwest (USA) including topics such as soil erosion, conservation tillage, weed control, and fertility management.
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Publications, a list-serv, research reports, a newsletter, web resources, and other resources related to conservation tillage can be found on this searchable site developed by three US universities.
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This soil quality links page is an eclectic listing of links to organizations, information sources, and ongoing discussions on management for soil health.
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This FAO database contains photos concerning land degradation, crop rotation and intercrops, farmer training, conservation agriculture impact on soil property, direct seeding, cover crops, microcatchment, conservation agriculture and environment, tools and equipment for zero-tillage, soil restoration, food security and conservation agriculture, and agriculture and livestock interaction.
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This site contains the thesis abstract on a study of scientific and economic aspects of adoption of an alley cropping system. The parent page of this article is available in English and Thai.
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This brief 1996 University of Nebraska (USA) extension article discusses using stubble-mulch farming for erosion control, and increased soil moisture in the Great Plains region.
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This site contains an article which discusses the SALT project.
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This is an article about a farming system called SALT-2 that grazes livestock on sloping land with forage (usually leguminous shrubs) crops planted in contour hedgerows and on the boundary of the farm. Between the hedgerows, cash crops are grown.
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mantiene algunos mapas de Sistema de Información Geográfica que muetra datos con relación a los suelos (Argentina).
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Developed by the Mindanao Baptist Rural Life Center (MBRLC), SALT is a diversified agroforestry farming system that adequately controls soil erosion while helping restore soil structure and fertility. A fully-illustrated manual on how to farm the hilly land without losing the topsoil. Includes history of the system.
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This University of Florida extension materials main page connects to information on soil fertility, quality, testing, surveys, properties, field methods, nutrient management, plant nutrition, and related topics. Connects to Spanish publications.
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Soil conservation articles from a number of scientific journals can be accessed through this ASA-CSSA-SSSA collection. Abstracts are freely accessible; access to full text may require payment. Browsing and search functions for related agricultural topics can be found at http://soil.scijournals.org/collections/.
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This is a paper that tries to improve the debate over the soil-degradation consequences of developing-country agriculture on several fronts. First, Part II notes some inadequacies in recent writings on soil degradation trends. Part III re-thinks the requirements for a good empirical test of how agriculture and the soil really interact over the long run. That sets the stage for new historical soil data from China and Indonesia, two countries on which much of the soil-degradation debate has long centered.
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This 8 page pdf publication describes the erosion problem in Iowa (USA), and defines several practices (ie terracing, residue management, and others) landowners may find helpful for reducing erosion.
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Iowa State University Extension Service has published an article dealing with the relationship between cultural practices, crop productivity and soil erosion. (pdf only).
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This four page extension publication in pdf format from Iowa State University (USA) discusses the effects of soil erosion on crop productivity, and the potential of management practices to reduce erosion.
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This is the products page from the Worldwide Portal to
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An unpublished consultancy report for the National Land and Water Resources Audit of Australia. This paper considers hillslope soil erosion by water; gully and stream bank erosion (collectively termed channel erosion); and delivery of sediments, nutrients and pesticides to streams.
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Factsheets, infosheets, and publications regarding soil management, soil erosion, and tillage from the Ontario Ministry of Agriculture and Food.
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This infosheet, put out by the Ontario Ministry of Agriculture and Food, provides information on various soil management issues, and suggests options for action.
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This FAO Soils Bulletin resulted from a 1991 training course on tillage and residue management in Africa. Its 10 on-line chapters cover erosion control, soil moisture conservation, agroforestry and alley farming, runoff, and conservation tillage.
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This 45 page pdf document is the report of a US Geological Survey project that looked at 1970-98 to discover if increases in conservation tillage and decreases in erosion could be related to decreases in suspended sediment discharge from streams.
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This paper outlines the research results for various case studies regarding corn and soybeans and the effect of strip preparation on temperature and yield. It outlines a procedure to avoid soil erosion and undergo strip preparation.
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This publication covers basic soil properties and management steps toward building and maintaining healthy soils. The publication is divided into three distinct sections, each with its own purpose. Section 1 deals with basic soil principles and provides a understanding of living soils and how they work. In section 1 you will find answers to why soil organisms and organic matter are important. Section 2 covers management steps to build soil quality on your farm. The last section covers farmer stories of people who have successfully built up their soil. A large resource section of other available information concludes the publication.
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This site has links to soil erosion paper titles with names of their author(s), interpretive summaries, contact address, and keywords.
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This 2004 searchable Pennsylvania State University (USA) publication contains a variety of information related to agronomy including pest management, soil fertility management, cover crops and conservation tillage, soil erosion, and more.
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First published in Biological Agriculture and Horticulture in 1987, this article discusses soil erosion, its relation to conventional and organic farming systems, and its effects.
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Published by Agriculture and Agri-Food Canada in 1995, this on-line book contains 10 chapters that explore soil health subjects such as soil organic matter, soil quality, erosion, and more.
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An online book that reports on the health and condition of Canada's soils, and what measures have been taken to reverse soil degradation and to build the soils back up. Focuses on farming systems as the main vehicle for halting soil degradation, and maintaining or improving soil health.
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An on-line version of a paper that is one of a series published by Volunteers in Technical Assistance (VITA) to provide an introduction to specific state-of-the-art technologies of interest to people in developing countries. This electronic version of the paper does not show photos, figures, etc. that are included in the paper version, which is available for sale from VITA.
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This is a basic fact sheet about conservation tillage, including information on no-till, ridge-till and mulch till.
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This site is the homepage for the USDA and Kansas State University Wind Erosion Research Unit. It includes information on wind erosion, simulation models, a wind erosion discussion list, and other wind erosion resources.
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This 1999 article published in the Journal of Cotton Science discusses a study conducted in Blackstone and Dothan-Norfolk, Virginia (USA) from 1995 to 1997. Cotton crops in this area may not produce enough crop residue to reduce erosion and protect soil between crops. Consequently, the objectives of the study were to evaluate selected cover crops in terms of biomass production, percentage ground cover, and aboveground nitrogen assimilation.
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This site contains the summary of a paper evaluating agroforestry schemes in Eastern Visayas, Philippines submitted to the World Forestry congress XI volume 1, topic 2.
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