This wide-ranging selection of original papers covers many aspects of desertification including environmental and weather factors, land management policy, groundwater resources, understanding biodiversity in fragile ecosystems, technological approaches to the study and remedy of desertification.

Here is a guide to the most beautiful and important sites of geological interest in England and Wales. Grouped by region, with clear topographical and geological maps, it may be used as a field-guide by students of geology and geography, as well as by interested walkers and ramblers.

A brand new edition of the definitive textbook on humankind's impact on the Earth's environment--now in full color This classic text explores the multitude of impacts that humans have had over time upon vegetation, animals, soils, water, landforms, and the atmosphere. It considers the ways in which climate changes and modifications in land cover may change the environment in coming decades. Thoroughly revised to cover the remarkable transformation in interest that humans are having in the environment, this book examines previously uncovered topics, such as rewilding, ecosystem services, techniques for study, novel and no analogue ecosystems, and more. It also presents the latest views on big themes such as human origins, the anthropocene, domestication, extinctions, and ecological invasions. Extensively re-written, Human Impact on the Natural Environment, Eighth Edition contains many new and updated statistical tables, figures, and references. It offers enlightening chapters that look at the past and present state of the world--examining our impact on the land itself and the creatures that inhabit it; the oceans, lakes, rivers and streams; and the climate and atmosphere. The book also takes a deep look at our future impact on the planet and its resources--our affect on the coastal environments, the cryosphere and the drylands, as well as the hydrological and geomorphological impacts. Fully updated to take account of recent advances in our understanding of global warming and other phenomena Offers current opinions on such topics as human origins, the anthropocene, domestication, extinctions, and ecological invasions Features a full-color presentation to allow for more and clearer photographs and diagrams Contains more international case studies than previous editions to balance UK examples Human Impact on the Natural Environment is essential reading for undergraduates in geography and environmental science, and for those who want a thorough, wide-ranging and balanced overview of the impacts of humans upon natural processes and systems from the Stone Age to the Anthropocene and who wish to understand the major environmental issues that concern the human race at the present time.

Low leakage power switch is proposed to allow saving in power dissipation of the Network on Chip (NoC). Two power reduction techniques are exploited to design the proposed switch. The proposed NoC switch employs power supply gating to reduce the power dissipation. Adaptive virtual channel (AVC) is proposed as a novel technique to reduce power dissipation of the NoC switch. AVC technique is proposed as an efficient technique to reduce the active area using hierarchical multiplexing tree. Moreover, power gating reduces the average leakage power consumption of proposed switch. The proposed techniques reduce the leakage and dynamic power dissipation of the switch.

Techniques for Desert Reclamation Edited by Andrew S. Goudie School of Geography, University of Oxford Major world environmental issues, such as the degradation of deserts and their margins, are covered in this book. Unlike many volumes which merely analyse the causes and consequences of desertification, this book concentrates on the methods that are available to contend with some of the main symptoms of desert degradation. These symptoms include soil erosion by wind, soil erosion by water, salinization, loss of tree and shrub cover, the loss of animal resources, and the depletion of water resources. If the utility, stability and diversity of arid environments is to be maintained, then the techniques described in this book will need to be employed. The book is global in perspective and is written by academics and consultants with long-continued and diverse experience of desert environments. It attempts to present techniques for desert reclamation in a concise, comprehensive and accessible way, and assumes no technical expertise in the reader.

This volume provides an overview of current and future trends in aeolian research. It is written by leading scientists from the UK, Canada, India, Australia and the USA, all of whom are actively involved in aeolian research. The book seeks to provide a comprehensive account of present aeolian processes, landforms and sediments, together with an analysis of past aeolian environments. Further, it looks at some of the anthropogenic pressures on aeolian processes, both on coasts and in deserts, and discusses some management solutions. The text is characterised by the wide perspective it provides and by the authority of its authors. Its fourteen chapters cover the history of desert dune studies, recent investigations of airflow and sand transport, sand seas, coastal dune dynamics, dune management, the physics of aeolian movement, wind erosion (especially of agricultural land), dust storms, loess deposition, the aeolian rock record, palaeoenvironments in the Quaternary, luminescence dating techniques, and aeolian research for the Millennium.

In this atlas the authors have brought together, in accessible form, a set of maps which portray a vivid picture of the physical environment of the British Isles. Each set of maps is accompanied by text that explains the nature and causes of the patterns that can be observed. The contents are broadly based, covering the geology, geomorphology, hydrology, climatolgoy, soils, biogeography, and seas of the British Isles and the human impact on each of these aspects. The maps are as uncomplicated as the subject matter allows and the text is designed to be accessible to a wide range of readers. The book was prepared to celebrate the centenary of the Geographical Assocation. From it emerges a remarkable picture of the physical landscape. Together with its companion volume, Britiain in the 1990s: A Social and Economic Atlas, it provides a comprehensive overview of the British Isles.