Les Espaces Naturels Tropicaux
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Les Espaces Naturels Tropicaux
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Author : Jean Demangeot
language : fr
Publisher: Elsevier Masson
Release Date : 1976
Les Espaces Naturels Tropicaux written by Jean Demangeot and has been published by Elsevier Masson this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Physical geography categories.
Espaces Tropicaux Et Risques
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Author : Gilbert David
language : fr
Publisher: IRD Editions
Release Date : 2004
Espaces Tropicaux Et Risques written by Gilbert David and has been published by IRD Editions this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Environmental risk assessment categories.
En ce début de XXIe siècle, les risques occupent une place prépondérante dans l'actualité de la planète et structurent une nouvelle demande sociale à laquelle la recherche doit apporter des réponses. Au gré des événements qui affectent les rapports entre milieux et sociétés ou les dynamiques internes à ces dernières, de nouveaux risques émergent et les méthodes d'analyse se renouvellent ou se recomposent. Pour le géographe, la notion de risque conduit à une nouvelle manière de voir le monde. Jusqu'au milieu des années quatre-vingt-dix, la géographie tropicale a principalement traité du risque à l'échelle locale, et sous l'angle du risque naturel, souvent réduit à un aléa, dont il s'agissait avant tout de décrire les modalités de fonctionnement. Aujourd'hui, le champ spatial et thématique de l'analyse s'est considérablement élargi et enrichi. A l'emboîtement des échelles - du local au global - répond la grande diversité des problématiques d'étude concernées par le risque et une réflexion épistémologique sur les notions d'aléa, de vulnérabilité et d'enjeux, consubstancielles de la notion de risque. Les Xe journées de Géographie Tropicale qui se sont tenues à Orléans en septembre 2003 attestent de cette évolution et constituent une étape importante dans l'émergence du risque comme thème majeur de la géographie tropicale. Le présent ouvrage reprend 35 des 49 communications et conférences qui y ont été présentées. Il se structure en cinq chapitres respectivement consacrés aux risques naturels ; à la santé publique et aux risques sanitaire ; à la structuration des territoires sous contrainte des risques ; au rapport entre mondialisation et risque territorial ; à la gestion des risques. Le point de vue et les pratiques des communautés locales sont confrontés aux outils et méthodes de la géographie moderne que sont la télédétection et les systèmes d'information géographique.
Geomorphology Of The Tropics
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Author : Alfred Wirthmann
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Geomorphology Of The Tropics written by Alfred Wirthmann and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.
Geomorphological research in the humid to seasonal tropics has primarily concentrated on the most characteristic landform assemblage of this zone, namely that of stepped, largely undissected etchplains, often dotted with inselbergs and cutting across ancient basement rocks. Although the author discusses extensively this subject, he puts particular emphasis on the differences of chemical weathering and land-forming processes on rocks of various lithology and structure. This contrast becomes most evident, when comparing the highly resistant quartzitic sediments often covering the basement rocks with the easily weathered volcanics, e.g. the Deccan traps of India. The book was first published in German in 1987. However, the present version is much more than a translation, encompassing a range of new ideas and findings in the field of tropical geomorphology. The number of maps and illustrations has also been increased.
The Meteorology And Climate Of Tropical Africa
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Author : Marcel Leroux
language : en
Publisher: Springer Science & Business Media
Release Date : 2001-09-01
The Meteorology And Climate Of Tropical Africa written by Marcel Leroux and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-09-01 with Science categories.
This unique book includes 250 maps related to various factors of meteorology and climate and their effects on the African continent. It provides detailed coverage of fundamentally important issues concerning African meterology, climatology, tropical circulation, rainfall, drought and climate change.
Geomorphology
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Author : Mateo Gutierrez
language : en
Publisher: CRC Press
Release Date : 2012-12-07
Geomorphology written by Mateo Gutierrez and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-07 with Nature categories.
This book provides a detailed coverage of the landforms of Planet Earth and the processes that shaped them. The study of these morphologies, some of which formed during past geological periods under environmental conditions very different from those of today, makes it possible to reconstruct the evolution of relief and to infer environmental changes that have involved geological media, the climate, or human activity. A major advance of Geomorphology in recent decades is the development of techniques that make it possible to quantify morphogenetic processes and rates at which forms change under different environmental conditions. The development of Geochronology, or absolute dating methods, is helping us correct the limitations of relative dating that have prevailed in Geomorphology for many years. The ability to assign numerical ages to both landforms and deposits opens up multiple possibilities for reconstructing the evolution of relief, making correlations, calculating rates, and estimating recurrence periods. A theme of major concern facing people today is the possible warming of the planet due to the release of greenhouse gases into the environment. Investigations conducted by the scientific community show that this temperature increase is at least partially anthropogenic. Given this more-than-probable cause and effect relationship, the most sensible and prudent path is to design and apply mitigation measures to alleviate this heating that can negatively affect both the natural environment and human society. The information that Geomorphology can provide on the recent past (Historical Geomorphology) may be very useful in making predictions on the activity of these potentially dangerous processes in the future and on the possible effects of environmental changes. The aim of this book is to provide a general vision of the multiple aspects of Geomorphology and to provide a methodological foundation to approach the study of various branches of geomorphology. To this end, the book contains a basic bibliography that can be used for future research. In addition, applied aspects of Geomorphology are covered at the end of each chapter to provide knowledge of the activities of geomorphologists in the professional world.
Hispanic Lands And Peoples
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Author : William M. Denevan
language : en
Publisher: Routledge
Release Date : 2019-04-10
Hispanic Lands And Peoples written by William M. Denevan and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-10 with Political Science categories.
This anthology focuses on James J. Parsons' work in Latin America and in Spain, with the resulting neglect of his publications on other regions, particularly California. It includes the integration of economy and ecology. .
Technical Report On A Study Of The Agroclimatology Of The Humid Tropics Of Southeast Asia
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Author : L. R. Oldeman
language : en
Publisher: Food & Agriculture Org.
Release Date : 1982
Technical Report On A Study Of The Agroclimatology Of The Humid Tropics Of Southeast Asia written by L. R. Oldeman and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Technology & Engineering categories.
Biotic Diversity In Agroecosystems
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Author : D. Pimentel
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Biotic Diversity In Agroecosystems written by D. Pimentel and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.
The preservation of biodiversity is a high priority among biologists, ecologists and environmentalists. The impact that human activities have on biodiversity is clear; however, few studies have focused on the importance of biodiversity to natural and agricultural ecosystems. In fact, many natural species are essential to sustainable agricultural programs. A new school of thought is appreciating the ecological principles and benefits that diversity of natural biota have for humans and the environment. Landscape ecology and agroecology can play a major role in protecting the environment and conserving biological diversity. The practical opportunities for improving the sustainability of agriculture and making it more environmentally sound were discussed at the Symposium on Agroecology and Conservation Issues, from which 22 papers were collected for this volume. Strategies for increasing biodiversity in agricultural landscapes are provided alongside discussion that agriculture will continue to spread into forests, to meet the growing need for food. Although humans recognize the value of crop and livestock species, few really appreciate the fact that agriculture and forestry cannot function in a productive sustainable way when significant numbers of species in natural biota are lost.
Geomorphology In The Tropics
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Author : Michael F. Thomas
language : en
Publisher: John Wiley & Sons
Release Date : 1994-07-19
Geomorphology In The Tropics written by Michael F. Thomas and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-07-19 with Science categories.
Many advances have been made in our understanding of tropical geomorphology in recent decades, but the field remains relatively neglected. With current widespread concern about the damage to tropical ecosystems, it is time for a new study of geomorphology in the tropics. The author endeavours to provide a tropical perspective on geomorphology, rather than a compartmentalised "tropical" geomorphology. The importance of weathering and the materials of the weathered mantle in determining the outcome of erosional processes is emphasised. The impact of Quaternary climate changes in creating superficial forms and deposits is stressed as being fundamental in the tropics as in other parts of the world. Nevertheless, the tropical landscape exhibits forms and deposits that have evolved over long time-periods in the absence of frost and ice, justifying an evolutionary approach to the long-term development of landscape. The book is important to a broad spectrum of earth science interests including geotechnical and engineering studies, and soil science, as well as to students of geomorphology. People working in the tropics will encounter the processes and products of tropical denudation systems, and the fragile nature of many of the surface materials discussed in this volume demands a deeper understanding of their behaviour. No other book currently attempts this task and this study fills a serious gap in the literature of geomorphology.
Les Principaux Sols Du Monde
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Author : MATHIEU Clément
language : fr
Publisher: Lavoisier
Release Date : 2009-11-23
Les Principaux Sols Du Monde written by MATHIEU Clément and has been published by Lavoisier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-23 with categories.
La dégradation des sols, leur pollution, leur capacité à nourrir la population mondiale dans les prochaines décennies animent actuellement de grands débats. Afin d’y apporter les réponses les plus pertinentes, il est nécessaire de bien connaître tous les grands types de sol qui couvrent la planète et leur répartition dans les différentes zones bio-climatologiques. Après une présentation générale des fonctions vitales du sol et de ses propriétés fondamentales, cet ouvrage décrit les principaux sols du monde dans leur environnement bio-climatologique, physique et physico-chimique, sans oublier de mentionner leurs transformations anthropiques majeures ainsi que les dégradations subies depuis parfois de nombreuses décennies. Grâce à une abondante illustration (40 figures didactiques et près de 400 photos couleurs), un panorama général des principaux sols du monde et de leur fonctionnement se dessine au fil des pages et entraîne le lecteur dans un voyage scientifique et iconographique à travers l’épiderme vivant de la planète Terre. Les principaux sols du monde s’adresse non seulement aux spécialistes de la science du sol mais aussi aux étudiants et aux enseignants des sciences de la terre et des sciences de la vie. Il suscitera également un vif intérêt chez toutes les personnes concernées par l’aménagement, la protection des milieux naturels et la connaissance de la Terre. Clément Mathieu a été successivement pédologue à la station agronomique de Laon puis dans un grand périmètre irrigué au Maroc, fonctionnaire prinicipal des Nations Unies (FAO) en République centrafricaine, professeur de science du sol à l'université du Burundi et à l'ESA-Purpan de Toulouse. Il est également membre de l'Académie des sciences d'outre-mer et de la Société des explorateurs français.