Download or read book EMASAR Phase II written by and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EMASAR Phase II Boudet G Delpiano P G Abdallah A Sudan written by and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EMASAR Phase II Calembert J et al Middle East written by and published by Nicholson. This book was released on 1978 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Management of Arid and Semi arid Rangelands of Africa the Near and Middle East written by and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adapting to Drought written by Michael Mortimore and published by Cambridge University Press. This book was released on 1989-03-30 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book embodies the results of thirteen years of research in drought-prone rural areas in the semi-arid zone of northern Nigeria. It describes the patterns of adaptive behaviour observed among Hausa, Ful'be and Manga communities in response to recurrent drought in the 1970s and 1980s. The question of desertification is explored in an area where the visible evidence of moving sand dunes is dramatic blame are examined in relation to the field evidence. A critique is offered of deterministic theories and authoritarian solutions. Professor Mortimore demonstrates a parallel between the observable resilience of semi-arid ecosystems and the adaptive strategies of the human communities that inhabit them and suggests policy directions for strengthening that resilience.
Download or read book Plants for Arid Lands written by G.E. Wickens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic plants have been defined by SEPASAT as those plants that are utilised either directly or indirectly for the benefit of Man. Indirect usage includes the needs of Man's livestock and the maintenance of the environment; the benefits may be domestic, commercial or aesthetic. Economic plants constitute a large and so far uncalculated percentage of the quarter of a million higher plants in the World today. However, it has been calculated that 10% (25 000) of these species are now on the verge of extinction and extinction means that a genetic resource that could be of benefit to Man will be lost for ever. Furthermore, for every species lost an estimated 10-30 other dependent organisms are also doomed. Fewer than 1 per cent of the World's plants have been sufficiently well studied for a true evaluation of the potential floral wealth awaiting discovery, not only in the rain forests, which man is now actively destroying at a rate of 20 ha a minute, but also in the very much neglected dry areas of the World.
Download or read book Systematic Pomology Vol 1 2 Set written by O.P. Pareek and published by Scientific Publishers. This book was released on 2017-01-01 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is aimed to be a treatise on the ‘Systematic Pomology’, the primary component of science of fruits, dealing with identification, nomenclature and classification of fruit species based on the descriptions of characteristics related to their morphological, genetical, physiological, biochemical, biotechnological and eco-attributes. Besides taxonomic narrative of each species under the respective orders and genera, considerable emphasis has been laid on cultivars. The treatment is based on the latest version of Nomenclature and Phylogenetic System of Classification (APG III). The book is richly illustrated with diagrams and colour plates and carries fairly exhaustive bibliography and glossary. Thus, the book is of high academic value for research workers/teachers, students and anyone interested in advanced fruit culture to provide insight in identifying and classifying fruit plants, providing standard nomenclature and terminology, in avoiding the confusion from synonymy and promoting correct labeling, to understand their genetic relations, in establishing or maintaining a garden, a germplasm block, a research orchard or even herbaria, in identification of new genotypes or cultivars for introduction and in deciding orchard management practices as well as methods of utilization, in using the correct related cultivars kept in a genetic resources repository for improvement considering the limits of hybridization, and in selecting genetic material for a breeding programme considering their taxonomic proximities and specific characters related to fruit bearing, regularity, nutritive and edible quality, resistance to biotic and abiotic stresses and plant stature and form.
Download or read book Notes on Trees and Shrubs in Arid and Semi arid Regions written by Michel Baumer and published by Food & Agriculture Org.. This book was released on 1983 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Range Management In Arid Zones written by Samira A.S. Omar and published by Routledge. This book was released on 2014-09-19 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1995. This title presents the proceedings of The Second International Conference on Range Management in the Arabian Gulf, 1990. The objectives of the Conference were to: evaluate progress made following the First Conference; exchange information on range management development; review advances in applicable technologies; discuss potential strategies for range enhancement and assemble pertinent recommendations for enactment. As such, these proceedings will serve as a reference base for researchers, professors, lecturers, and students alike, both at advanced undergraduate and graduate levels.
Download or read book Plant Genetic Resources of Legumes in the Mediterranean written by Nigel Maxted and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic erosion, that is, the loss of native plant and genetic diversity has been exponential from the Mediterranean Basin through the Twentieth century. This careless eradication of species and genetic diversity as a result of human activities from a 'hot-spot' of diversity threatens sustainable agriculture and food security for the temperate regions of the world. Since the early 1900s there has been a largely ad hoc movement to halt the loss of plant diversity and enhance its utilisation. The Convention on Biological Diversity and Food and Agriculture Organisation of the United Nations International Undertaking on Plant Genetic Resources, both highlight the need to improve conservation methodologies and enhance utilisation techniques. It has been argued that the most important component of biodiversity is the genetic diversity of crop and forage species used to feed humans and livestock. These cultivated and related wild species provides the raw material for further selection and improvement. Leguminosae species are of major economic importance (peas, chickpeas, lentils and faba beans, as well as numerous forage species) and provide a particularly rich source of protein for human and animal foods. Their distribution is concentrated in the Mediterranean region and therefore the improvement of their conservation and use in the region is critical. This text is designed to help ensure an adequate breadth of legume diversity is conserved and to help maximise the use of that conserved diversity. The subjects of conservation and use of legume diversity, the Mediterranean ecosystem and taxonomy of legumes are introduced. Generic reviews of the taxonomy, centre of diversity, ecogeographic distribution, genetic diversity distribution, conservation status, conservation gaps and future research needs are provided, along with a discussion of the importance of rhizobia to the maintenance of legume diversity. Current ex situ and in situ conservation activities as well current legume uses are reviewed. In conclusion future priorities for ex situ and in situ plant genetic conservation and use of Mediterranean legumes are highlighted. All contributors look forward rather than simply reviewing past and current activities and therefore it is hoped that the identification of genetic erosion, location of taxonomic and genetic diversity and promotion of more efficient utilisation of conserved material will be enhanced.
Download or read book The Grazing Land Ecosystems of the African Sahel written by Henry N. Le Houerou and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Non timber Uses of Selected Arid Zone Trees and Shrubs in Africa written by Frances E. M. Booth and published by Food & Agriculture Org.. This book was released on 1988 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Role of Acacia Species in the Rural Economy of Dry Africa and the Near East written by G. E. Wickens and published by Food & Agriculture Org.. This book was released on 1995 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alfalfa and Relatives written by Ernest Small and published by NRC Research Press. This book was released on 2011 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: Best known as an animal feed, Alfalfa Medicago sativa is one of the most important and widely produced livestock crops grown throughout the temperate world. "Alfalfa and Relatives: Evolution and Classification of Medicago" provides an in-depth introduction to the Medicago genus, exploring its evolution, breeding and adaptation. Not only are Alfalfa's agricultural and environmental benefits unsurpassed but, due to technological advances, this staple crop is now being developed as a source of human food extracts, pharmaceuticals, enzymes, industrial chemicals, and biofuels. Through this detailed text the authors define the ecological applications of the plant whilst carefully illustrating its economic value and its growing importance as a genetic resource
Download or read book The Gift of Water written by Sebastian Zug and published by LIT Verlag Münster. This book was released on 2014 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Pierre Bourdieu conceptualizes the social as an economy. With an empirical example of free water transfers between 'water rich' and 'water poor' neighbours, this book demonstrates the relevance of moral considerations in habitualized everyday practice. Using Luc Boltanski's work on Justifications, the analysis introduces economic imperfection into Bourdieu's 'perfect' Economy of Symbolic Goods. By presenting a Poltiical Ecology of the neighbourly waterscape from the perspective of water consumers, this book is a scientific plea for a holistic analysis of water beyond the scale of policy making"--Publisher's description
Download or read book Reproductive Versatility in the Grasses written by Geoffrey Peter Chapman and published by Cambridge University Press. This book was released on 1990-11-30 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1990 text brings together a detailed review by acknowledged authorities of grass reproductive biology. Essential to contemporary awareness of grasses is an understanding of their role in sustaining ecologically fragile environments, and the relative importance of annual and perennial reproduction is examined here.
Download or read book The Future is an Ancient Lake written by Caterina Batello and published by Food & Agriculture Org.. This book was released on 2004 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This art book contains over 350 color photographs by Marzio Marzot, documenting information on traditional food production systems, scientific details and notes from a journey through one of the world' s outstanding region: the Lake Chad Basin in Africa. It provides an insight into the life and customs of the local farmers, fishermen and pastoralists who foster, maintain and utilize biodiversity in their traditional agricultural systems, thereby deploying the knowledge and techniques that they have accumulated over many centuries. FAO promotes the sharing of experiences and awareness related to the role of rural people in conserving and sustainably using agricultural biodiversity. Building on the local knowledge and social organization of farmers is indispensable. The images in this book are a tribute to the knowledge and work of farmers and their care for the land.
