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In the last 20 years, there has been a remarkable emergence of innovations and technological advances that are generating promising changes and opportunities for sustainable agriculture, yet at the same time the agricultural sector worldwide faces numerous daunting challenges. Not only is the agricultural sector expected to produce adequate food, fiber, and feed, and contribute to biofuels to meet the needs of a rising global population, it is expected to do so under increasingly scarce natural resources and climate change. Growing awareness of the unintended impacts associated with some agricultural production practices has led to heightened societal expectations for improved environmental, community, labor, and animal welfare standards in agriculture. Toward Sustainable Agricultural Systems in the 21st Century assesses the scientific evidence for the strengths and weaknesses of different production, marketing, and policy approaches for improving and reducing the costs and unintended consequences of agricultural production. It discusses the principles underlying farming systems and practices that could improve the sustainability. It also explores how those lessons learned could be applied to agriculture in different regional and international settings, with an emphasis on sub-Saharan Africa. By focusing on a systems approach to improving the sustainability of U.S. agriculture, this book can have a profound impact on the development and implementation of sustainable farming systems. Toward Sustainable Agricultural Systems in the 21st Century serves as a valuable resource for policy makers, farmers, experts in food production and agribusiness, and federal regulatory agencies.
Continued population growth, rapidly changing consumption patterns and the impacts of climate change and environmental degradation are driving limited resources of food, energy, water and materials towards critical thresholds worldwide. These pressures are likely to be substantial across Africa, where countries will have to find innovative ways to boost crop and livestock production to avoid becoming more reliant on imports and food aid. Sustainable agricultural intensification - producing more output from the same area of land while reducing the negative environmental impacts - represents a solution for millions of African farmers. This volume presents the lessons learned from 40 sustainable agricultural intensification programmes in 20 countries across Africa, commissioned as part of the UK Government's Foresight project. Through detailed case studies, the authors of each chapter examine how to develop productive and sustainable agricultural systems and how to scale up these systems to reach many more millions of people in the future. Themes covered include crop improvements, agroforestry and soil conservation, conservation agriculture, integrated pest management, horticulture, livestock and fodder crops, aquaculture, and novel policies and partnerships.
Holistic management considers humans, their economies, and the environment as inseparable. At the heart of the approach lies a simple testing process that enables people to make decisions that simultaneously consider economic, social and environmental realities, both short- and long-term. A useful handbook for anyone involved with land management and stewardship.
Systems approaches for agricultural development are needed to determine rational strategies for the role of agriculture in national development. Mathematical models and computer simulation provide objective tools for applying science to determine and evaluate options for resource management at field, farm and regional scales. However, these tools would not be fully utilizable without incorporating social and economic dimensions into their application. The second international symposium, Systems Approaches for Agricultural Development, held in Los Baños, 6-8 December 1995, fostered this link between the bio-physical sciences and the social sciences in the choice of keynote papers and oral presentations, a selection of which is included in this book. The book's contents further reflect how systems approaches have definitely moved beyond the research mode into the application mode. The large number and high quality of interdisciplinary research projects reported from different parts of the globe, to determine land use options that will meet multiple goals and yet sustain natural resource bases, is a key indicator of this `coming of age'. At the farm level, where trade-off decisions between processes and products (commodities) feature strongly, much progress is also evident in the development of systems-based tools for decision making. This book will be of particular interest to all agricultural scientists and planners, as well as students interested in multidisciplinary and holistic approaches for agricultural development.
This book examines the rationale for emphasizing productivity as the dominant goal of agricultural research and challenges in the form of alternative goals that scientists might seek in performing agricultural research. It presents bibliographic essays that review the criticisms of research.
While there continues to be refinement in defining and assessing sustainable management, there remains the urgent need for policies that create the conditions that support sustainability and can halt or slow destructive practices already underway. Carol Colfer and her contributors maintain that standardized solutions to forest problems from afar have failed to address both human and environmental needs. Such approaches, they argue, often neglect the knowledge that local stakeholders have accumulated over generations as forest managers and do not address issues involving the diversity and well-being of groups within communities. The contributors note that these problems persist despite clear evidence that equity and social relationships, including gender roles, are important factors in the ways that communities adapt to change and manage forest resources overall. The Equitable Forest offers an alternative to traditional, externally organized strategies for forest management. Termed adaptive collaborative management (ACM), the approach tries to better acknowledge the diversity, complexity, and unpredictability of human and natural systems. ACM works to strengthen local institutions and use the knowledge and capacity of groups in local communities to enhance the health and well-being of both forests and the people who live in and around them. The Equitable Forest provides a detailed explanation of the descriptive, analytical, and methodological tools of ACM, along with accounts of early stages of its implementation in tropical regions of Asia, Africa, and Latin America. Although the contributors make it clear that it is too soon to evaluate the efficacy of ACM, their work is supported by evidence that rural communities do make important contributions when involved in formal forest management; that management strategies are most effective when flexible and tailored to local contexts; and that efforts by outside governmental and nongovernmental organizations to support local management are feasible from the policymaking perspective, and desirable for their impact on human, economic, and environmental well-being.
Part I: Introduction; Part II: Valuation of ecosystem services and biophysical indicators of NRM impacts; Part III: Methodological advances for a comprehensive impact assessment; Part IV: NRM impact assessment in practice.
Sustainable intensification has recently been developed and adopted as a key concept and driver for research and policy in sustainable agriculture. It includes ecological, economic and social dimensions, where food and nutrition security, gender and equity are crucial components. This book describes different aspects of systems research in agriculture in its broadest sense, where the focus is moved from farming systems to livelihoods systems and institutional innovation. Much of the work represents outputs of the three CGIAR Research Programs on Integrated Systems for the Humid Tropics, Aquatic Agricultural Systems and Dryland Systems. The chapters are based around four themes: the conceptual underpinnings of systems research; sustainable intensification in practice; integrating nutrition, gender and equity in research for improved livelihoods; and systems and institutional innovation. While most of the case studies are from countries and agro-ecological zones in Africa, there are also some from Latin America, Southeast Asia and the Pacific.
Proceedings of the International Symposium on Systems Approaches for Agricultural Development, 2-6 December 1991, Bangkok, Thailand