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Cropping systems. --- Agricultural systems --- Soil management

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Soil management --- Soil microbiology --- Soil conservation

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La quatrième de couverture indique : "2015, année internationale des sols, a attiré l'attention sur le rôle crucial et la vulnérabilité de cette ressource, véritable épiderme de la Terre, à la fois produit du vivant et support de toute vie terrestre. Essentiels à notre alimentation, les sols nous fournissent fibres, matériaux et énergie ; ils portent nos infrastructures ; ils contribuent au cycle de l'eau et à la qualité de l'air. Formidable réservoir de biodiversité, ils abritent environ un quart des espèces vivantes décrites à ce jour. À l'échelle globale, ils jouent un rôle majeur dans la régulation du climat et stockent, dans les seuls 30 premiers centimètres, l'équivalent de 90 années des émissions mondiales de gaz à effet de serre. Alors que leur disponibilité et leur bon fonctionnement sont couramment considérés comme acquis, ils font l'objet de pressions de plus en plus fortes : demandes croissantes et antagonistes en logements, infrastructures, nourriture, matières premières, énergie et espaces de nature. Le programme Gessol, créé en 1998 par le ministère en charge de l'Écologie et animé depuis 2006 par l'Ademe, a permis de structurer une communauté de recherche sur la gestion des sols et ainsi de fournir aux décideurs publics et aux usagers des sols des connaissances et des outils opérationnels pour évaluer, surveiller, gérer et améliorer leur qualité. De la mise en place d'indicateurs pour la planification urbaine à la mesure des stocks de carbone, en passant par les instruments juridiques et économiques pour la protection des sols, cet ouvrage synthétise les dernières connaissances biotechniques et sociétales sur le sujet. Il souligne l'importance d'une gestion durable des sols dans les enjeux globaux et identifie les leviers d'actions possibles."

Alternative agriculture --- Sustainable agriculture --- Soil science --- Pédologie --- Agriculture durable --- Pédologie. --- Agriculture durable. --- Pédologie. --- Soil management --- Land use --- Conservation tillage --- Soil restoration

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This book is a critical account of the disconnected nature of governance, conservation and livelihood initiatives in the Indian Sundarbans, an active delta that spreads over 25,500 sq. km across India and Bangladesh and lies in the Bay of Bengal. It draws a holistic picture of the disaster-prone delta in eastern India, which is a UNESCO World Heritage Site and also one of the largest tracts of mangrove forests in the world. The author juxtaposes the vulnerable lives and frequently displaced existence of the islanders against the dominant strategies of conservation and development followed by the state.

Community development --- Soil erosion --- Soil management --- Natural disasters --- Natural calamities --- Disasters --- Soils --- Soil science --- Agronomy --- Accelerated erosion --- Erosion --- Regional development --- Economic assistance, Domestic --- Social planning --- Management --- Citizen participation --- Government policy

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Soil is the most important natural non-renewable resource developed over a longer period of time due to weathering of rocks and subsequently enrichment of organic matter. Soil provides habitat for numerous microorganisms and serves as a natural medium for plant growth, thereby providing the plants with anchorage, nutrients and water to sustain the growth. Soil also serves as a universal sink for all types of pollutants, purifies ground water and is a major reserve of carbon in the universe. The role of soils to provide ecosystem services, maintenance of environmental/human health and ensuring the food security makes it as the most important and basic natural resource. Soil Science helps us to elaborate and understand how the soils provide all these services. Soil Science also provides us the basic knowledge dealing with the origin of the soil parent material, weathering of parent material and the formation of soils, morphological, physico-chemical and biological features of soils, classification of soils and role of soils in the provision and maintenance of ecosystem services, food security and environmental quality. This book encompasses the various processes, functions and behaviour of soils very comprehensively to acquaint the students of soil, plant and environmental sciences about their role to perform different agricultural and environmental functions.

Life sciences. --- Agriculture. --- Plant breeding. --- Environmental chemistry. --- Soil science. --- Soil conservation. --- Life Sciences. --- Soil Science & Conservation. --- Environmental Chemistry. --- Plant Breeding/Biotechnology. --- Pedology (Soil science) --- Agriculture --- Earth sciences --- Farming --- Husbandry --- Industrial arts --- Life sciences --- Food supply --- Land use, Rural --- Chemistry, Environmental --- Chemistry --- Ecology --- Crops --- Breeding --- Conservation of soil --- Erosion control, Soil --- Soil erosion --- Soil erosion control --- Soils --- Agricultural conservation --- Soil management --- Control --- Prevention --- Conservation