Soil degradation is a widespread problem in Africa resulting in decreased agricultural productivity while demand for food continues to increase. Degradation is caused by accelerated erosion, acidification, contamination, depletion of soil organic matter and plant nutrients, and salinization. The major cause of soil degradation in Africa is uncontrolled and excessive grazing in the savanna regions followed by deforestation and the use of inappropriate and extractive farming practices. Perpetual neglect of the health of soils in Africa can exacerbate the already serious problems of food and nutritional insecurity and environmental degradation. Food and nutritional security of the growing population of Africa can only be achieved if degraded soils are restored and soils of agroecosystems are managed prudently and sustainably. Ignoring soils and taking the fragile, finite and precious soil resources for granted is the principal cause of poverty, hunger, and environmental degradation. The downward spiral must be reversed through soil restoration measures based on translating science into action. This book describes the soils of Africa, processes of soil degradation, extent and severity of soil degradation, and the impacts of degradation processes on food and nutritional security. Features: Explores the extent and severity of soil degradation in Africa Analyzes the cause–effect relationship between anthropogenic activities and soil degradation Reviews processes of soil degradation in Africa including erosion, salinization, nutrient depletion, and decline of soil organic matter Addresses the effect of climate change on soil degradation in Africa. Explains how soil degradation causes food and nutritional insecurity Part of the Advances in Soil Sciences series, this volume is specifically devoted to the processes and factors that cause soil degradation and the challenges and potential for remediation and restoration of soil health in Africa.

Soil Degradation, Restoration and Management in a Global Change Context, volume four in the Advances in Chemical Pollution, Environmental Management and Protection series, explores a wide breadth of emerging and state-of-the-art technologies and provides the best practices to manage soils affected by degradation. Soils are the base of life, thus a sustainable soil management is crucial in a context of global environmental change. Chapters in this new release include Soil degradation, processes, future treats and possible solutions, Agriculture and grazing environments, Abandoned and afforested lands, Environments affected by fire, Mining environments, Urban areas, and Lands affected by war. - Covers a wide breadth of emerging and state-of-the-art technologies - Includes contributions from an international board of authors - Provides a comprehensive set of reviews - Synthesizes all aspects involved in soil degradation

In view of the grave consequences of soil degradation on ecosystem functions, food security, biodiversity and human health, this book covers the extent, causes, processes and impacts of global soil degradation, and processes for improvement of degraded soils. Soil conservation measures, including soil amendments, decompaction, mulching, cover cropping, crop rotation, green manuring, contour farming, strip cropping, alley cropping, surface roughening, windbreaks, terracing, sloping agricultural land technology (SALT), dune stabilization, etc., are discussed. Particular emphasis is given to soil pollution and the methods of physical, chemical and biological remediation of polluted soils. This book will lead the reader from the basics to a comprehensive understanding of soil degradation, conservation and remediation.

An authoritative investigation of the biology and management of wildland shrubs. Focuses on the development of the science of restoration ecology. An in-depth look at the restoration and revegetation of even the most rare shrubs. Divided into six sections: overview, restoration and revegetation, ecology, genetic integrity, and management options. Dozens of charts, graphs, and photos.

The book attempts to match user need to the level of technology required for management, planning and monitoring of natural resources. It provides clear guidance on the reliability, accuracy and cost of applications. Editors believe that this endeavour shall provide a valuable scientific basis to students and researchers to address the future challenges in natural resources monitoring and management. Accurate inventory, assessment and periodic monitoring of resources will enable the policy makers to keep an eye on optimal utilization of resources and development process to take timely interventions. We further hope this book will be a valuable reference and provide practical guidance for all who work towards the goal of the sustainable and judicious use of resources.

The objective of IFAD/FAO consultation was to bring together experts in order to review the state-of-the-art knowledge in carbon sequestration for the land management programmes IFAD and FAO in Latin America and the Caribbean. The main objectives addressed were: how to stabilize the atmospheric concentration of CO2; how to increase agricultural productivity and reduce rural poverty; in view of the Global Mechanism for Desertification Convention, how to activiate the flow of new funds for the benefit of Convention implementation through carbon sequestration, i.e. its binding and neutralisation. It is believed that carbon stock in soils is either stable or increasing and that it is was a major source of global carbon emission, a major cause of global climate change

Ecological restoration is a rapidly evolving discipline that is engaged with developing both methodologies and strategies for repairing damaged and polluted ecosystems and environments. During the last decade the rapid pace of climate change coupled with continuing habitat destruction and the spread of non-native species to new habitats has forced restoration ecologists to re-evaluate their goals and the methods they use. This comprehensive handbook brings together an internationally respected group of established and rising experts in the field. The book begins with a description of current practices and the state of knowledge in particular areas of restoration, and then identifies new directions that will help the field achieve increasing levels of future success. Part I provides basic background about ecological and environmental restoration. Part II systematically reviews restoration in key ecosystem types located throughout the world. In Part III, management and policy issues are examined in detail, offering the first comprehensive treatment of policy relevance in the field, while Part IV looks to the future. Ultimately, good ecological restoration depends upon a combination of good science, policy, planning and outreach – all issues that are addressed in this unrivalled volume.