Download or read book Low Level Aerial Survey Techniques written by International Livestock Centre for Africa and published by ILRI (aka ILCA and ILRAD). This book was released on with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Level Aerial Survey Techniques written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Level Aerial Survey Techniques written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low level aerial survey techniques written by and published by . This book was released on 1981 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vegetation mapping written by A.W. Küchler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: A. W. KOCHLER The intimate intercourse between two or more 2. vegetation maps are scientific tools for ana fields of knowledge often bears interesting and lyzing the environment and the relation valuable fruit. Vegetation maps are such fruit, ships between vegetation and the site on resulting from the union of botany and geogra which it occurs. This helps to explain the phy. The work of botanists can be comprehen distribution of plant communities on the sive only if it includes a consideration of plants basis of the physical and chemical features in space, i. e. in different types of landscapes. At of the landscape. On the other hand, plant this point, the work of geographers becomes communities allow conclusions on the natu important through their development of maps re of the environment; as tools to determine and to analyze distribu 3. vegetation maps are valuable standards of tions in space. Our highly developed knowledge reference for observing and measuring of vegetation is matched by the refinement of changes in the vegetation, their direction cartographic techniques, and maps can now be and their speed, i. e. the rate of change. This is important because the character ofvegeta made that will show the extent and geographical distribution of vegetation anywhere on the sur tion is dynamic and is increasingly affected face of our planet with a remarkable degree of by man; accuracy. 4.

Download or read book Low level Aerial Survey Techniques written by and published by . This book was released on 1981 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low level Aerial Survey Techniques written by and published by . This book was released on 1981 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sustainable Production from Livestock in Sub Saharan Africa written by International Livestock Centre for Africa and published by ILRI (aka ILCA and ILRAD). This book was released on 1988-01-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ILCA Annual Report 1987 written by International Livestock Centre for Africa and published by ILRI (aka ILCA and ILRAD). This book was released on 1982-01-01 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The productivity of small ruminants in the Maasai pastoral system Kajiado district Kenya An introduction to current research written by P. N. de Leeuw, C. P. Peacock and published by ILRI (aka ILCA and ILRAD). This book was released on with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pastoral Systems Research in Sub Saharan Africa written by and published by ILRI (aka ILCA and ILRAD). This book was released on 1983-01-01 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Land Observation by Remote Sensing written by Buiten and published by CRC Press. This book was released on 1994-03-07 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on land objects, this textbook for an advanced undergraduate or graduate course describes both the fundamentals of the theory of remote sensing as well as the application of this technique to the fields of agriculture, forestry, land use, land evaluation, agrohydrology, irrigation, nature conservation, and environmental pollution control. An updated translation of the 1990 Dutch edition. Annotation copyright by Book News, Inc., Portland, OR

Download or read book Proceedings written by and published by . This book was released on 1957 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of the International Agricultural Research and Development Centers written by and published by IRRI. This book was released on 1989 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ILCA Annual Report 1984 Livestock Research and Food Production in Africa written by International Livestock Centre for Africa and published by ILRI (aka ILCA and ILRAD). This book was released on with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Conservation by Sustainable Use written by H.H.T Prins and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the major challenges of sustainable development is the interdisciplinary nature of the issues involved. To this end, a team of conservation biologists, hunters, tourist operators, ranchers, wildlife and land managers, ecologists, veterinarians and economists was convened to discuss whether wildlife outside protected areas in Africa can be conserved in the face of agricultural expansion and human population growth. They reached the unequivocal - if controversial - conclusion that wildlife can be an economic asset, especially in the African savannas, if this wildlife can be sustainably utilized through safari hunting and tourism. Using the African savannas as an example, Wildlife Conservation by Sustainable Use shows that in many instances sustainable wildlife utilization comprises an even better form of land use than livestock keeping. Even when population pressure is high, as in agricultural areas or in humid zones, and wild animal species can pose a serious cost to agriculture, these costs are mainly caused by small species with a low potential for safari hunting. Although ranching has a very low rate of return and is hardly ever profitable, the biggest obstacle to the model of sustainable wildlife use outlined in Wildlife Conservation by Sustainable Use is from unfair competition from the agricultural sector, such as subsidies and lack of taxation, resulting in market distortion for wildlife utilization. This book thus gives valuable evidence for a different way of working, providing arguments for removing such distortions and thereby facilitating financially sound land use and making it a rationally sound choice to conserve wildlife outside protected areas. The expert team of authors, most of whom came together at a workshop to thrash out the ideas that were then developed into the various chapters, has written a superb account of recent research on this complex subject, resulting in a book that is a major contribution to our understanding of sustainable use of land. The important conclusion is that wildlife conservation can be possible for landholders and local communities if they have a financial interest in protecting wildlife on their lands.