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This book provides the reader with a comprehensive overview of the soils of Spain gathered by a variety of Spanish experts in the field. It presents soils in this country as particularly conditioned by the naturally diverse and drastic distribution of the Spanish landscape, characterized by mountainous ranges in the North, and arid areas in the South and the East. The first chapter sets the agricultural scenario in Spain as influenced by the Arabic culture and American agricultural products; the second chapter provides a classification and distribution of Spanish soils; the third chapter approaches the topic of soils in the characteristically humid Northern Iberia area as prone to diversity and soil evolution; the fourth focuses on the soils of the South and East of Spain as affected by lack of rainfall and abundance in calcic soil horizons; the fifth chapter deals with Mediterranean soils, having as a particular characteristic the dominance of red colors; and the last chapter discusses the challenges and future issues of Spanish soils.
Agriculture - General --- Ecology --- Earth & Environmental Sciences --- Agriculture --- Soils --- Earth (Soils) --- Mold, Vegetable --- Mould, Vegetable --- Soil --- Vegetable mold --- Agricultural resources --- Plant growing media --- Regolith --- Land capability for agriculture --- Soil conservation. --- Physical geography. --- Agriculture. --- Soil Science & Conservation. --- Physical Geography. --- Farming --- Husbandry --- Industrial arts --- Life sciences --- Food supply --- Land use, Rural --- Geography --- Conservation of soil --- Erosion control, Soil --- Soil erosion --- Soil erosion control --- Agricultural conservation --- Soil management --- Control --- Prevention --- Conservation --- Soil science. --- Pedology (Soil science) --- Earth sciences
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This book provides the reader with a comprehensive overview of the soils of Spain gathered by a variety of Spanish experts in the field. It presents soils in this country as particularly conditioned by the naturally diverse and drastic distribution of the Spanish landscape, characterized by mountainous ranges in the North, and arid areas in the South and the East. The first chapter sets the agricultural scenario in Spain as influenced by the Arabic culture and American agricultural products; the second chapter provides a classification and distribution of Spanish soils; the third chapter approaches the topic of soils in the characteristically humid Northern Iberia area as prone to diversity and soil evolution; the fourth focuses on the soils of the South and East of Spain as affected by lack of rainfall and abundance in calcic soil horizons; the fifth chapter deals with Mediterranean soils, having as a particular characteristic the dominance of red colors; and the last chapter discusses the challenges and future issues of Spanish soils.
Environmental protection. Environmental technology --- Pedology --- Agriculture. Animal husbandry. Hunting. Fishery --- Physical geography --- bodemkunde --- environment --- bodembescherming --- landbouw --- fysische geografie --- Spain
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Depuis le milieu du xxe siècle, du fait de la forte croissance démographique, les sols et la végétation des zones tropicales et méditerranéennes subissent d'importantes dégradations. Actuellement, plus de 20 % des terres cultivées sont dégradées chimiquement, physiquement et biologiquement. En effet, malgré la mise en œuvre de grands projets tels la conservation de l'eau et des sols (CES), la production agricole ne peut être maintenue à un niveau suffisant pour nourrir une population qui double tous les vingt ans dans les pays du Sud. Cet ouvrage a ainsi pour objectif de présenter les principaux résultats de la recherche dans le domaine de la restauration de la productivité des sols. Les causes de la dégradation des sols des régions chaudes sont présentées dans un premier temps. On évalue ensuite les divers modes de gestion de la biomasse et des nutriments, puis les techniques culturales et les systèmes de gestion de l'eau. Les nombreuses données expérimentales présentées montrent que la restauration durable des systèmes agroécologiques est possible, moyennant le respect de six règles : une bonne maîtrise de l'eau, l'apport de matières organiques, l'utilisation de compléments minéraux, la revitalisation du sol (fumier / compost), la correction du pH du sol et le choix judicieux de cultures à fort développement de biomasse. L'ouvrage, qui présente de nombreuses études de terrain originales, s'adresse tant aux chercheurs qu'aux enseignants, aux étudiants, aux décideurs et aux différents acteurs en charge du développement rural.
Economics --- Planning & Development --- Algérie --- Congo --- Cameroun --- Nigeria --- Maroc --- Madagascar --- Mali --- zone tropicale --- zone méditerranéenne --- Burundi --- Canaries --- Martinique
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