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Agricultural engineering --- Agronomy --- Agriculture --- Crops --- Soil management

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Over the past three decades, governments at the local, state, and federal levels have undertaken a wide range of bold innovations, often in partnership with nongovernmental organizations and communities, to try to address their environmental and natural resource management tasks. Many of these efforts have failed. Innovations, by definition, are transitory. How, then, can we establish new practices that endure? Toddi A. Steelman argues that the key to successful and long-lasting innovation must be a realistic understanding of the challenges that face it. She examines three case studiesùland ma

Environmental policy --- Conservation of natural resources --- Forest policy --- Soil management --- Government policy

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Major tree crops contribute substantially to the economy of many developing countries on the Asian, African and Latin American continents. For example, coffee is the main revenue earner for Kenya. This book provides a comprehensive review of the agronomy, botany, taxonomy, genetics, chemistry, economics, and future global prospects of a range of crops that have great food, industrial and economic value such as cocoa, coffee, cashew, oil palm and natural rubber. Discusses the major tree crops of great economic value to the developing worldThe author is an eminent

Agriculture --- Agronomy. --- Economic aspects --- Crops --- Soil management --- Tree crops --- Agronomy --- Utilization --- Tree crops - Economic aspects - Developing countries --- Tree crops - Utilization - Developing countries --- Agronomy - Developing countries

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The relationships between soils, microbes and humans are of crucial relevance in the tropics, where plant stress and microbial activity are exacerbated. This volume of Soil Biology presents the living component of tropical soils, showing how it is shaped by environmental conditions and emphasizing its dramatic impact on human survival and well-being. Following an introduction to the specificities of tropical soils and of their microbial communities, the biological aspects of soil management are examined, dealing with land use change, conservation and slash-and-burn agriculture, the restoration of hot deserts, agroforestry and paddy rice cultivation. As they are of particular relevance for tropical agriculture, symbioses of plants and microbes are thoroughly covered, as are the biodegradation of pesticides and health risks associated with wastewater irrigation. Lastly, traditional soil knowledge is discussed as a key to our sustainable presence in this world.

Agriculture -- Tropics. --- Soil management -- Tropics. --- Soil microbiology -- Tropics. --- Soil microbiology --- Soil management --- Agriculture --- Biology --- Agriculture - General --- Microbiology & Immunology --- Earth & Environmental Sciences --- Health & Biological Sciences --- Soil biology --- Tropical agriculture --- Life sciences. --- Sedimentology. --- Agriculture. --- Ecosystems. --- Microbiology. --- Soil science. --- Soil conservation. --- Sustainable development. --- Life Sciences. --- Soil Science & Conservation. --- Sustainable Development. --- Natural history

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Depuis plusieurs décennies, sous l’effet du défrichement, du surpâturage et de la pression démographique, les milieux naturels et les aires cultivées des régions semi-arides sont soumis à d’importantes dégradations. Malgré la mise en œuvre des grands projets de lutte antiérosive depuis les années 1950, les espaces ruraux nord-africains ont notamment connu d’importantes baisses de productivité accompagnées d’une augmentation du risque de ruissellement et d’érosion des versants. Devant ce constat et face à la nécessité d’optimiser concrètement la gestion de l’eau et de restaurer la fertilité des terres, l’amélioration des techniques traditionnelles est la voie recommandée dans cet ouvrage pour mettre en œuvre des projets intégrés de développement en milieu rural. Soutenue par le réseau érosion de l’AUF, l’équipe franco-marocaine de géographes, d’agronomes et de forestiers réunie pour cet ouvrage a analysé une trentaine de techniques traditionnelles de gestion de l’eau et des sols au Maroc. Testées dans différentes zones agro-écologiques et en tenant compte des facteurs économiques et humains, les techniques paysannes de lutte antiérosive sont présentées et commentées à la lumière des derniers acquis scientifiques. À partir de ces expériences, l’ouvrage propose des combinaisons de techniques traditionnelles de gestion des sols, optimisées et adaptées aux conditions locales. Il s’adresse aux enseignants, aux étudiants et aux chercheurs, mais également aux ONG et aux décideurs en charge des programmes de développement rural au Maghreb et dans les régions semi-arides.

Water resources development --- Soil management --- Sustainable development --- Traditional ecological knowledge --- Morocco - Water management --- Gestion des eaux --- water management --- Gestion du sol --- Conservation de l'eau --- Water conservation --- Érosion --- Erosion --- Ruissellement --- Runoff --- Lutte antiérosion --- erosion control --- Technologie traditionnelle --- Traditional technology --- Agriculture traditionnelle --- Traditional farming --- Connaissance indigène --- Indigenous knowledge --- Région méditerranéenne --- Mediterranean region --- Morocco --- Erosion. --- Water resources development - Morocco --- Soil management - Morocco --- Sustainable development - Morocco --- Traditional ecological knowledge - Morocco --- Atlas --- zone méditerranéenne --- lutte antiérosive --- conservation du sol --- participation populaire --- technique traditionnelle --- paysannerie --- zone aride --- sol --- irrigation --- aménagement hydroagricole --- agropastoralisme --- zone semi-aride --- Maroc --- pratique culturale --- société rurale