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Technical Bulletin
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Major Soil Groups of the World
This profusely illustrated book gives an exhaustive account of the principal types of soils of our planet. The "progressive descent of weathering fronts" model, recognized and used by eminent international scientists is the guiding principle of choice to link the observations and to give the reader a synthetic and coherent view of the differentiation of soils. In each case, the introductory reminders summarize the physicochemical and mineralogical principles necessary for understanding the text. The nomenclatures rely systematically and simultaneously on the two most commonly used classifications: Soil Taxonomy and World Reference Base. This reference manual is aimed at students of the undergraduate and graduate courses, but is also intended for workers and scientists in this subject area (geologists, pedologists, agronomists, land-use planners, foresters, etc.) as well as for all those concerned with or interested in protection of the environment.
Les grands sols du monde
Les sols du monde présentent une diversité considérable, tant au niveau de leurs caractères et de leurs propriétés, que de leurs âges et de leurs conditions de genèse.Une bonne connaissance de ces caractéristiques constitue un viatique indispensable pour l'étude, l'utilisation et la conservation du milieu naturel. Cet ouvrage largement illustré offre une présentation exhaustive des principaux types de sols de notre planète. Le modèle d'" enfoncement progressif", reconnu et utilisé par de grands spécialistes internationaux, est ici le fil directeur choisi pour relier les observations et donner au lecteur une vision synthétique et cohérente de la différenciation des sols.Pou...
Bulletin
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Historical Dictionary of Guinea
Thoroughly updated and extensively revised, this 4th edition provides a very solid and substantial guide to a better understanding of this richly endowed but poorly understood nation. Students and others seeking information about the country will find an introductory narrative accounting of Guinea's political and economic history, a chronology that spans the earliest known history of the area to the present day Republic of Guinea, 400 dictionary entries covering the personalities and events that made contemporary Guinea, and an extensive bibliography of current publications.
Bulletin
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