Rangelands In A Sustainable Biosphere

The science of range management, like many other resource disciplines, has embraced and integrated environmental concerns in the field, the laboratory, and policy. Rangeland Ecology and Management now brings this integrated approach to the classroom in a thoroughly researched, comprehensive, and readable text. The authors discuss the basics of ran

Rangelands are large natural landscapes that can include grasslands, shrublands, savannahs and woodlands. They are greatly influenced by, and often dependent on, the action of herbivores. In the majority of rangelands the dominant herbivores are found in domestic herds that are managed by mobile pastoralists. Most pastoralists manage their rangelands communally, benefitting from the greater flexibility and seasonal resource access that common property regimes can offer. As this book shows, this creates a major challenge for governance and institutions. This work improves our understanding of the importance of governance, how it can be strengthened and the principles that underpin good governance, in order to prevent degradation of rangelands and ensure their sustainability. It describes the nature of governance at different levels: community governance, state governance, international governance, and the unique features of rangelands that demand collective action (issues of scale, ecological disequilibrium and seasonality). A series of country case studies is presented, drawn from a wide spectrum of examples from Africa, the Middle East, Central Asia, Europe and North America. These provide contrasting lessons which are summarised to promote improved governance of rangelands and pastoralist livelihoods.

Desertification has occurred worldwide. The biophysical and socio-economic complexity of this phenomenon has challenged our ability to categorize, inventory, monitor and repair the condition of degraded lands. One of the most important distinctions to be made in relation to land degradation is between cultivated land used for annual crop production and `rangelands'. Grazing by free-roaming livestock is the traditional primary use of the world's rangelands. However, there is growing recognition of the importance of these vast acreages for wildlife habitat, hydrology and ground water recharge, recreation and aesthetics. This text focuses on the desertification of rangelands and explores processes, problems and solutions. Chapters in the first section evaluate interactions between `natural' and human-induced disturbance regimes, thresholds, and non-linear change with respect to vegetation, hydrology, nutrients and erosion. Chapters in the second section examine socio-economic constraints and approaches for preventing and reversing degradation. The book provides a contemporary, process-oriented perspective on rangeland degradation of value to students, policy-makers and professionals alike.