Woody Plants In Agro Ecosystems Of Semi Arid Regions
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| Author | : Henk Breman |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 353 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 3642792073 |
This book provides a quantitative analysis of the role of woody plants in semi-arid regions, for the aSSessment of their benefits in agrosylvopastoralland-use systems with productive and sus tainability objectives. The insights presented and conclusions drawn allow the additional benefits of woody plants for specific climatic and physical site conditions and land-use systems to be estimated. The Sahel and Sudan zones in West Africa, on which the book focusses, represent resource-poor conditions, whose ecological dynamics have been relatively well studied. The role of woody plants in this region, as assessed in this book, is extrapolated to other semi-arid regions, leading to general conclusions on agroforestry's potential as an option for sustainable land use in semi-arid regions. The origins of this book go back to 1982, when the Club du Sahel requested that available data on woody plants in the Sahel region be synthesised, to provide basic information to enable better attention to be given to woody plants in rural development programmes. We are grateful to the Club du Sahel for this challenge. Various people contributed to studies used in this book. The preliminary inventory of the data available was made by Frits Ohler; later his work was continued by Franciska Dekker.
| Author | : David D. Briske |
| Publisher | : Springer |
| Total Pages | : 664 |
| Release | : 2017-04-12 |
| Genre | : Technology & Engineering |
| ISBN | : 3319467093 |
This book is open access under a CC BY-NC 2.5 license. This book provides an unprecedented synthesis of the current status of scientific and management knowledge regarding global rangelands and the major challenges that confront them. It has been organized around three major themes. The first summarizes the conceptual advances that have occurred in the rangeland profession. The second addresses the implications of these conceptual advances to management and policy. The third assesses several major challenges confronting global rangelands in the 21st century. This book will compliment applied range management textbooks by describing the conceptual foundation on which the rangeland profession is based. It has been written to be accessible to a broad audience, including ecosystem managers, educators, students and policy makers. The content is founded on the collective experience, knowledge and commitment of 80 authors who have worked in rangelands throughout the world. Their collective contributions indicate that a more comprehensive framework is necessary to address the complex challenges confronting global rangelands. Rangelands represent adaptive social-ecological systems, in which societal values, organizations and capacities are of equal importance to, and interact with, those of ecological processes. A more comprehensive framework for rangeland systems may enable management agencies, and educational, research and policy making organizations to more effectively assess complex problems and develop appropriate solutions.
| Author | : Jean-Marc Boffa |
| Publisher | : Food & Agriculture Org. |
| Total Pages | : 256 |
| Release | : 1999 |
| Genre | : Business & Economics |
| ISBN | : 9789251043769 |
This document attempts to present the current state of knowledge on agroforestry parkland systems. These systems, which for many local populations are very important for food security, income generation and environmental protection, are found primarily in the semi-arid and sub-humid zones of West Africa. The document first provides a thorough description of their distribution and diversity and discusses different ways of classifying them. It also presents data on current trends in parkland development and assesses determining factors. The document then provides an in-depth analysis of biophysical tree-soil-crop interactions and the factors regulating them, and describes various improved parkland management techniques. It goes on to examine the strength and limitations of institutional arrangements as well as the constraints imposed by Sahelian forest policies on the sustainable management of parklands. The production, use and marketing of parkland products is reviewed with an emphasis on their contribution to food security, local and national income as well as social values. Overall costs and benefits of the practice of parkland agroforestry are evaluated. In conclusion, the document identifies crucial research needs and promising avenues for promoting sustainable management of parkland systems.
| Author | : Christiane Runyan |
| Publisher | : Cambridge University Press |
| Total Pages | : 277 |
| Release | : 2016-04-18 |
| Genre | : Business & Economics |
| ISBN | : 1107135265 |
A concise but comprehensive interdisciplinary examination of global deforestation for a broad audience of scientists and policymakers.
| Author | : Andrea Berardi |
| Publisher | : Routledge |
| Total Pages | : 294 |
| Release | : 2017-05-15 |
| Genre | : Science |
| ISBN | : 1351902083 |
Parched landscapes, biodiversity loss, encroaching deserts and deforestation are some of the environmental crises taking place in tropical savannas and dry forests throughout the world. To date, much research into these regions has treated humans as 'outside' or as an 'impact' only. However, over and over again, examples show that, in fact, humans are not external factors, but integral components of these systems. Humans are key determinants of savannas and dry forests, affecting patterns and processes, as well as impacts on natural resources. Unless we understand the human-environment relationship in these regions, we will never truly identify the causes or be able to provide solutions. This book therefore focuses on the roles of the past, present and future human perceptions and actions on savannas and dry forests. It examines how the views of local farmers, NGO workers, government officials and international scientists differ on the links between the social and ecological components of savannas. It deals with these multiple perspectives by using systems diagramming and conceptual modelling to provide a clearer and more explicit understanding and to promote better communication between the various actors concerned.
| Author | : Daizy Rani Batish |
| Publisher | : CRC Press |
| Total Pages | : 400 |
| Release | : 2007-11-15 |
| Genre | : Nature |
| ISBN | : 1420043366 |
Faced with the growing problems of climate change, ecosystem degradation, declining agricultural productivity, and uncertain food security, modern agricultural scientists look for potential relief in an ancient practice. Agroforestry, if properly designed, can mitigate greenhouse effects, maintain ecosystem health and biodiversity, provide food sec
| Author | : Nkonya, Ephraim |
| Publisher | : Intl Food Policy Res Inst |
| Total Pages | : 132 |
| Release | : 2008-01-01 |
| Genre | : Social Science |
| ISBN | : 0896291685 |
Most African countries strive for both poverty reduction and sustainable land management, yet information on the exact relationship between these goals is limited. This report seeks to fill the gap by demonstrating a strong linkage between poverty and land management. Using Uganda as a case study, the authors show that certain policies, such as investments in soil and water conservation and agroforestry, may simultaneously increase productivity and reduce poverty and land degradation. Other strategies, including development of rural roads, non-farm activities, and rural finance, may reduce poverty without significantly affecting productivity or land management. Some policies, however, will likely involve trade-offs among different goals and will need to have their negative impacts minimized. Those in government, NGOs, the private sector, or academia who are concerned about sustainably reducing poverty in Sub-Saharan Africa will benefit from this analysis of how to pursue these key development goals.
| Author | : |
| Publisher | : CABI |
| Total Pages | : 372 |
| Release | : 2002 |
| Genre | : Technology & Engineering |
| ISBN | : 9780851998855 |
Soil degradation and nutrient depletion have become serious threats to agricultural productivity in Africa. Soils cannot supply the quantities of nutrients required and yield levels decline rapidly once cropping commences. This book addresses these issues and includes papers from an international symposium held at Cotonou, Benin, October 9-12, 2000, organized by the International Institute of Tropical Agriculture, Ibadan, Nigeria and the Department of Land Management of the Katholieke Universiteit Leuven, Belgium. In five main parts it marks the end of a first phase of collaborative research on "Balanced Nutrient Management Systems for the Moist Savanna and Humid Forest Zones of Africa" and concludes with recommendations, providing essential reading for crop and soil scientists.
| Author | : Amelie Berger |
| Publisher | : Nordic Africa Institute |
| Total Pages | : 192 |
| Release | : 1998 |
| Genre | : Business & Economics |
| ISBN | : 9789171064158 |
David Sheppard's particular blend of interests single him out as unique among Anglican bishops. An outstanding sportsman as well as a dedicated cleric, many will remember him first and foremost as an English cricket captain. Others will recall his ecumenical strengths and his partnership with the Roman Catholic Archbishop, Derek Warlock, when they were both incumbents in Liverpool.
| Author | : Jane Carter Ingram |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 433 |
| Release | : 2012-02-15 |
| Genre | : Technology & Engineering |
| ISBN | : 1441906320 |
In the past, the science of ecology has frequently been excluded from the development agenda for various reasons. Increasingly however there has been a renewed interest in finding more ecologically sustainable means of development that have required a strong foundation in ecological knowledge (for example EcoAgriculture Partnerships, EcoHealth presented at ESA, and EcoNutrition proposed by Deckelbaum et al). Each of these examples has already taken the critical first step at integrating ecological knowledge with agriculture, health and nutrition, respectively. However, this is only the first step; more attention needs to be placed not only on the role that two fields can play towards poverty alleviation, but on the role of a truly integrated, interdisciplinary approach towards development goals that is firmly grounded in ecological understanding. We feel that a critical look at what ecology can and cannot provide to the development agenda, in light of the Millennium Development goals, is timely and crucial. The introduction and the final section of the book will then integrate the lessons and principles outlined in each of the chapters. All chapter authors will be heavily encouraged to focus on how their sub-discipline in ecology impacts overall human well-being and environmental sustainability.
