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| Author | : Henry N. Le Houerou |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 291 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 3642744575 |
Download The Grazing Land Ecosystems of the African Sahel Book in PDF, ePub and Kindle
7. 2 The Pilot Zone of the FerIo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 7. 2. 1 Geographical Zoning and Administrative Setup. . . . . . . . . . . . . 157 7. 2. 2 Climate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 7. 2. 3 The Substratum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 7. 2. 4 Surface Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 7. 2. 5 Vegetation and Rangelands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 7. 2. 6 Wildlife. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 7. 2. 7 Livestock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 7. 2. 8 Evolution of Land Use and History of Development . . . . . . . . 170 7. 3 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 7. 3. 1 Principles, Problems and Methods . . . . . . . . . . . . . . . . . . . . . . . . 181 7. 3. 2 Evaluation of Green Herbaceous Biomass by Orbital Remote Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 7. 3. 3 Evaluation of Range Production from Ground Sampling . . . . 207 7. 3. 4 Low Altitude Systematic Reconnaissance Flights (SRF) . . . . . . 211 7. 3. 5 Practical Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 7. 4 Conclusions on Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 8 General Conclusions: Towards an Ecological Management of the Sahelian Ecosystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 Subject Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269 of Scientific Names. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275 . . . . . . . . . . . . Index Animals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275 Plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 VII Abbreviations and Acronyms AVHRR Advanced Very High Resolution Radiometer CILSS Comite Inter-Etats de Lutte contre la Secheresse au Sahel CIPEA Centre International pour l'Elevage en Afrique CNRS Centre National de la Recherche Scientifique CP Crude Protein (N x 6.
| Author | : |
| Publisher | : |
| Total Pages | : 282 |
| Release | : 1989 |
| Genre | : |
| ISBN | : |
Download The grazing land ecosystems of the african-Sahel Book in PDF, ePub and Kindle
| Author | : Henry Nol Le Houérou |
| Publisher | : |
| Total Pages | : |
| Release | : 1989 |
| Genre | : |
| ISBN | : |
Download The grazing land ecosystems of the African Sahel Book in PDF, ePub and Kindle
| Author | : International Service for National Agricultural Research |
| Publisher | : |
| Total Pages | : 232 |
| Release | : 1995 |
| Genre | : Business & Economics |
| ISBN | : |
Download Survival in the Sahel Book in PDF, ePub and Kindle
Practical examples and data show how past development strategies have contributed to the deteriorating socio-economic and environmental conditions of the Sahel zone of Africa. It also shares some of the success stories, recommending new development approaches and presenting some alternative ways to deal with the present Sahelian situation
| Author | : Unesco |
| Publisher | : |
| Total Pages | : 664 |
| Release | : 1979 |
| Genre | : Technology & Engineering |
| ISBN | : |
Download Tropical Grazing Land Ecosystems Book in PDF, ePub and Kindle
| Author | : Unesco |
| Publisher | : Unesco Press |
| Total Pages | : 112 |
| Release | : 1975 |
| Genre | : Business & Economics |
| ISBN | : |
Download The Sahel Book in PDF, ePub and Kindle
UNESCO pub. Compilation of working papers on ecological approaches to land utilization in the Sahel arid zone of Africa - covers climatic influences, soil types, livestock, agricultural research into improved plant production and animal production, the role of forest conservation, human geography and pastoral nomadism, etc. Bibliographys, diagrams, maps and statistical tables.
| Author | : Jayalaxshm Mistry |
| Publisher | : Routledge |
| Total Pages | : 413 |
| Release | : 2014-09-15 |
| Genre | : Science |
| ISBN | : 1317880129 |
Download World Savannas Book in PDF, ePub and Kindle
An interdisciplinary text on the world's savannas, covering the geography, ecology, economics and politics of savanna regions. Savannas are a distinct vegetation type, covering a third of the world's land surface area and supporting a fifth of the world's population. There has been a wide range of literature on the subject, but the majority of work has focused on the ecology or development of savanna areas, ignoring the wider interdisciplinary issues affecting contemporary savannas. World Savannas aims to buck this trend, providing students with an up-to-date and comprehensive introduction to the global importance of savannas.
| Author | : Rattan Lal |
| Publisher | : CRC Press |
| Total Pages | : 2795 |
| Release | : 2017-01-11 |
| Genre | : Technology & Engineering |
| ISBN | : 1498738931 |
Download Encyclopedia of Soil Science Book in PDF, ePub and Kindle
New and Improved Global Edition: Three-Volume Set A ready reference addressing a multitude of soil and soil management concerns, the highly anticipated and widely expanded third edition of Encyclopedia of Soil Science now spans three volumes and covers ground on a global scale. A definitive guide designed for both coursework and self-study, this latest version describes every branch of soil science and delves into trans-disciplinary issues that focus on inter-connectivity or the nexus approach. For Soil Scientists, Crop Scientists, Plant Scientists and More A host of contributors from around the world weigh in on underlying themes relevant to natural and agricultural ecosystems. Factoring in a rapidly changing climate and a vastly growing population, they sound off on topics that include soil degradation, climate change, soil carbon sequestration, food and nutritional security, hidden hunger, water quality, non-point source pollution, micronutrients, and elemental transformations. New in the Third Edition: Contains over 600 entries Offers global geographical and thematic coverage Entries peer reviewed by subject experts Addresses current issues of global significance Encyclopedia of Soil Science, Third Edition: Three Volume Set expertly explains the science of soil and describes the material in terms that are easily accessible to researchers, students, academicians, policy makers, and laymen alike. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]
| Author | : Gregory H. Maddox |
| Publisher | : Bloomsbury Publishing USA |
| Total Pages | : 368 |
| Release | : 2006-03-24 |
| Genre | : Science |
| ISBN | : 1851095608 |
Download Sub-Saharan Africa Book in PDF, ePub and Kindle
A wealth of information and analysis on the environmental forces that have helped shaped the cultures of the African continent. A scholarly reference work that will also appeal to the general reader, Sub-Saharan Africa sets the story of the African environment within the context of geological time and shows how the continent's often harsh conditions prompted humans to develop unique skills in agriculture, animal husbandry, and environmental management. Part of ABC-CLIO's Nature and Human Societies series, this book enables readers to better grasp the extent of humanity's effect on our world. Of particular interest are the book's sections dealing with the impact of the Biafran famine of the 1960s, the Sahelian drought of the 1970s, population growth, and the ongoing challenges of war and HIV/AIDS. Crucially, the book also shows how, despite their relative poverty, many African states have coped admirably with rapid urbanization and have developed world-class conservation and sustainability programs in order to protect and harness some of the most endangered species in the world.
| Author | : Gerald E. Wickens |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 348 |
| Release | : 2013-04-17 |
| Genre | : Science |
| ISBN | : 3662037009 |
Download Ecophysiology of Economic Plants in Arid and Semi-Arid Lands Book in PDF, ePub and Kindle
This book deals with arid and semi-arid environments and their classification, and the physiological restraints and adaptations of plants to the environment. Further, it discusses economic botany and the needs and methods of conserving economic plants. A broad view is taken regarding the definition of economic plants, taking into account their value to the environment as well as to man and to livestock. The individual deserts and associated semi-arid regions are described in separate chapters, providing background information on the regional environments in terms of climate and major plant formations. The economic plants within these formations, their usages, geographical distribution together with their morphological and physiological adaptations are treated in detail.
