Download or read book Eau et am nagement dans les r gions inter tropicales written by Pierre Vennetier and published by Presses Univ de Bordeaux. This book was released on 1990 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Freshwater Wetlands written by H. Roggeri and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetlands could be described as land and water at Tropical wetlands: one and the same time, and as such are very specific on the brink ecosystems. Their often rich variety of resources makes them highly valuable to the peoples who live With a few exceptions (like the Everglades in the or regularly stay in them. However, access to them United States), the last remaining large wetlands are to be found in developing countries. Perhaps this can is difficult and those unaware of their services be explained by insufficient financial resources, frequently associate wetlands with such nuisances and calamities as mosquitos, disease, floods, impen lower popUlation density or a different concept of etrable wastelands, etc. As a result these areas are development and well-being. Whatever the reasons, often perceived as obstacles to human development many tropical wetlands still exist and support the and well-being. subsistence of many communities. But for how much History reflects these two views. Wetlands may longer? have been the cradle of great civilizations (like the During the last few decades tropical wetlands Maya, Inca, Aztec, Nilotic and Mesopotamian have also been destroyed or considerably altered. Dams and embankments now prevent water from civilizations), but elsewhere their destruction allowed other societies to develop. For example the Nether spreading into the floodplains of several rivers, like lands literally 'emerged from the waters' thanks to the Senegal, Volta and Nile.
Download or read book Handbook of Climate Change Impacts on River Basin Management written by Saeid Eslamian and published by CRC Press. This book was released on 2024-08-26 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change not only involves rising temperatures but it can also alter the hydro-meteorological parameters of a region and the corresponding changes emerging in the various biotic or abiotic environmental features. One of the results of climate change has been the impact on the sediment yield and its transport. These changes have implications for various other environmental components, particularly soils, water bodies, water quality, land productivity, sedimentation processes, glacier dynamics, and risk management strategies to name a few. This volume presents a diverse collection of case studies from researchers across the globe examining the impacts of climate change on river basin management in various geographical, hydrological, and socioeconomic contexts. The case studies yield important insights that can inform strategies to build resilience and adapt river basins to a changing climate.
Download or read book The Regional Impacts of Climate Change written by Intergovernmental Panel on Climate Change. Working Group II. and published by Cambridge University Press. This book was released on 1998 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cambridge, UK : Cambridge University Press, 1998.
Download or read book The Environment Encyclopedia and Directory 2001 written by Europa Publications and published by Psychology Press. This book was released on 2001 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charts the emerging world awareness of environmental issues. Provides an A-Z glossary of key terms, a comprehensive directory, an extensive bibliography, detailed maps and a Who's Who.
Download or read book Alleviating Soil Fertility Constraints to Increased Crop Production in West Africa written by A. Uzo Mokwunye and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical Africa escaped from the glaciers that covered the temperate parts of the world during the Ice Age. The legacy is that most of the parent materials of the soils of tropical Africa are old, highly weathered and devoid of bases and phosphate-bearing minerals. Traditional farming systems which were relatively stable and sustainable relied on long fallow periods after one to two years of cropping to maintain the productive capacity of the soils. In recent times and especially in densely populated areas, a sizeable class of 'landless' farmers have begun to cultivate marginal lands or to invade the 'forest reserves' thereby exacerbating the problems of land and environ mental degradation. of soil fertility that will facilitate the production of adequate quantities of the principle Maintaining a level staples has become a major challenge to agricultural scientists in tropical Africa. To increase the nutrient supplying power of soils requires the inputs of fertilizers. These can be organic or inorganic. The efficiency with which these externally supplied inputs can increase agricultural production and reduce soil and environmental deterioration is dependent on the ability of scientists to determine the right types and quantities of the products to apply to each soil, crop and cropping system as well as the ability of farmers to acquire requisite farm manage ment skills.
Download or read book Adaptation to Climate Change in Southern Africa written by Steffen Bauer and published by Routledge. This book was released on 2015-02-13 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adverse climate impacts are already evident across Southern Africa and pose a serious threat to the development prospects of the region's societies. Sustainable development in this region will depend on the rapid development and implementation of effective adaptation measures. This volume identifies the new socioeconomic and political boundaries to development that result from ongoing climate change in Southern Africa. The collected papers explore the region's potential for a transition to development strategies that combine meaningful socioeconomic investment and adaptation measures while also improving livelihoods in the region. The chapters are backed up by detailed case studies which underscore the urgent need for national governments and multilateral agencies to develop strategies to support Southern Africa's societies in adapting to climate change.
Download or read book Tropical Forest Update written by and published by . This book was released on 1997 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Crop and Water Management Systems for Rainfed Agriculture in the Sudano Sahelian Zone written by International Crops Research Institute for the Semi-Arid Tropics and published by . This book was released on 1989 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water and Sustainability in Arid Regions written by Graciela Schneier-Madanes and published by Springer Science & Business Media. This book was released on 2009-12-01 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: International voices fill the pages of Water and Sustainability in Arid Regions, forming an original scientific exploration of current water research and management issues. In arid regions, agriculture that is ill-adapted to the environment, accelerated urbanization, poverty, and increasing pollution challenge access to and uses of water. Understanding these issues requires incorporating findings from both the physical and social sciences at different temporal and spatial scales. The chapters in this book were written by hydrologists, remote sensing specialists, ecologists, historians, economists, political scientists, architects, archaeologists, and other experts who live in and study arid lands. The authors present updates, overviews, and analyses of water challenges these areas have faced and are striving to address, from salinization in the fabled Taklimakan Desert in China to land degradation in the northern Mediterranean to groundwater over-exploitation in the southwestern United States. The book also examines desertification, remote sensing, qanat systems, architecture, arsenic contamination, and other case studies from Iran, the Maghreb region, Argentina and Chile, and Mexico. From this conceptual mosaic of comparative perspectives and research methods emerges a strong assumption: an interdisciplinary approach that combines physical and social sciences is the first step toward globally and comprehensively addressing water and sustainability."This book is a valuable and welcome contribution to the discussion of water and sustainable development. Through the collection of chapters, the book clearly illustrates the contemporary diversity of approaches to water scarcity and presents pertinent and new research findings that readers generally do not find compiled together. The result is a highly relevant, accessible, and timely resource that is unique in its international and interdisciplinary content. This is a must-read for anyone working on environmental and sustainability issues in arid lands."André Mariotti, University Pierre et Marie Curie, and INSU - CNRS (National Institute for Earth Sciences and Astronomy-National Center for Scientific Research/Centre National de la Recherche Scientifique), France "Anyone who reads this book will find himself or herself contemplating the need to rethink how we approach the issue of water and sustainability in arid lands. Drawing on the expertise of both physical and social scientists, the chapters taken as a whole present global, historic, and current perspectives on water scarcity in a multi-layered way that rarely has been done before." Miguel Solanes, Madrid Water Institute, Spain
Download or read book Abstracts on Tropical Agriculture written by and published by . This book was released on 1992 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate Change 2014 Impacts Adaptation and Vulnerability Part B Regional Aspects Volume 2 Regional Aspects written by Intergovernmental Panel on Climate Change (IPCC) and published by Cambridge University Press. This book was released on 2014-12-29 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: This latest Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) will again form the standard reference for all those concerned with climate change and its consequences, including students, researchers and policy makers in environmental science, meteorology, climatology, biology, ecology, atmospheric chemistry and environmental policy.
Download or read book Guidelines for Water Reuse written by and published by . This book was released on 2004 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Power profits and policy written by Anthony B. Cunningham and published by CIFOR. This book was released on 2014-08-20 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: After 42 years of international trade in wild harvested medicinal bark from Africa and Madagascar, the example of Prunus africana holds several lessons for both policy and practice in forestry, conservation and rural development. Due to recent CITES restrictions on P. africana exports from Burundi, Kenya and Madagascar, coupled with the lifting of the 2007 EU ban in 2011, Cameroon’s share of the global P. africana bark trade has risen from an average of 38% between 1995 and 2004, to 72.6% (658.6 (metric tons or t)) in 2012. Cameroon is therefore at the center of this international policy arena. First, despite the need to conserve genetically and chemically diverse P. africana, there are no populations in Cameroon that are completely protected. Commercial harvesting is allowed in Mount Cameroon National Park (MCNP) and enforcement within forest reserves such as Nkom-Wum Forest Reserve, Mount Manengouba is limited. Second, hopes of decentralized governance of this forest product are misplaced due to elite capture, concentration of power and “informal taxation” (bribery). Although shifts away from an export monopoly did occur, this resulted in “resource mining” rather than the intended sustainable resource management after 1987, when 50 Cameroonian entrepreneurs entered the bark trade. In 2004, this halved to 25 companies. In 2007, just nine companies received quotas, only one of which (Afrimed) actually exported bark. Afrimed continues to dominate the export trade to date. As one of four companies under the umbrella of a privately owned Cameroonian bank, Afrimed is different to other exporters in terms of power and influence. At the current European price for P. africana bark (USD 6 per kg), the 2012 bark quota (658.675 t) was worth over USD 3.9 million, most of it accruing to Afrimed. Third, in contrast to lucrative bark exports, livelihood benefits to local harvesters from wild harvests are low. For example, the 48 harvesters working within MCNP receive less than USD 1 per day from bark harvests, due to a net bark price of just USD 0.33 per kg (or 43% of the farm-gate price for wild harvested bark). The costs of maintaining an inventory, monitoring and managing sustainable wild harvests are far greater than the benefits to harvesters. Without the current substantial international donor subsidies, sustainable harvest cannot be sustained. To supply the current and future market, we must develop separate, traceable P. africana bark supply chains based on cultivated stocks. More Cameroonian small-scale farmers cultivate P. africana than farmers in any other country. This change requires CITES and EU support and would catalyze P. africana cultivation in Cameroon, doubling farm-gate prices to harvesters – from the current FCFA 150 per kg (USD 0.33) received by wild bark harvesters to FCFA 294 per kg (USD 0.66 ) – that could be paid to farmers after a 15% traceability cost was deducted.
Download or read book Forest Resources Management written by and published by . This book was released on 1984 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regional Hydrological Impacts of Climatic Change Impact assessment and decision making written by Thorsten Wagener and published by . This book was released on 2005 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation and Mapping of Tropical African Rangelands written by and published by ILRI (aka ILCA and ILRAD). This book was released on with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
