Dynamic models provide a key input to the forthcoming assessment of the Gothenburg Protocol and for input to any further emission reduction agreements by establishing the time-scale of the ecosystem recovery from acidification. Data from six sites belonging to the UN ECE ICP Integrated Monitoring Programme have been used here to test the MAGIC model predictions against several years of observations and to make predictions into the future assuming the agreed emission reductions under current legislation plans are achieved by 2010. A close match between observed and simulated under this rigorous test of the model using best available site information and input-output data clearly demonstrates that the model captures the key controls on mean annual surface water chemistry.

Tiivistelmä.

This book provides a unique overview of research methods over the past 25 years assessing critical loads and temporal effects of the deposition of air pollutants. It includes critical load methods and applications addressing acidification, eutrophication and heavy metal pollution of terrestrial and aquatic ecosystems. Applications include examples for each air pollution threat, both at local and regional scale, including Europe, Asia, Canada and the US. The book starts with background information on the effects of the deposition of sulphur, nitrogen and heavy metals and geochemical and biological indicators for risk assessments. The use of those indicators is then illustrated in the assessment of critical loads and their exceedances and in the temporal assessment of air pollution risks. It also includes the most recent developments of assessing critical loads and current and future risks of soil and water chemistry and biodiversity under climate change, with a special focus on nitrogen. The book thus provides a complete overview of the knowledge that is currently used for the scientific support of policies in the field of air pollution control to protect ecosystem services.

This Special Issue of Water, Air, and Soil Pollution offers original contributions from BIOGEOMON, The Third International Symposium on Ecosystem Behavior, which was held on the campus ofVillanova University from June 21-25, 1997. Previous meetings were held in Prague in 1987 and again in 1993. The BIOGEOMON series was initiated in 1987 when a group of researchers from the Czech Geological Survey organized a conference called GEOMON, Geochemical Monitoring in Representative Basins. GEOMON was fairly narrowly focused on monitoring of element pools and fluxes on a small watershed scale. As signalled by the change in name to BIOGEOMON, the second conference explicitly recognized that assessment of anthropogenic effects on ecosystem processes requires a combination of geochemical monitoring with other approaches, including watershed-level manipulations, use of radioactive and stable isotopic tracers, and both empirical and process modeling. The 1997 BIOGEOMON conference was the largest, with over 240 participants from 28 countries on five continents in attendance, and broadest in scope. The conference featured a plenary speaker, six keynote speakers, 35 invited speakers, over 60 oral contributed presentations, and over 75 poster presentations.

The demand for comparable, long-term, high quality data on forest ecosystems' status and changes is increasing at the international and global level. Yet, sources for such data are limited and in many case it is not possible to compare data from different monitoring initiatives across space and time because of methodological differences. Apart from technical manuals, there is no comprehensive multidisciplinary, scientific, peer-reviewed reference for forest monitoring methods that can serve and support the user community. This book provides in a single reference the state-of-the-art of monitoring methods as applied at the international level. The book present scientific concepts and methods that form the basis of the transnational, long-term forest monitoring in Europe and looks at other initiatives at the global level. Standardized methods that have been developed over two decades in international forest monitoring projects are presented. Emphasis is put on trans-nationally harmonized methods, related data quality issues, current achievements and on remaining open questions. A comprehensive overview of needs, requirements, organization and possible outcomes of an integrated monitoring program Tested and quality assured, internationally harmonized methodologies based on a complete revision of existing methods carried out in 2009-2011 Connection with monitoring results allows assessment of the potential of the monitoring method

The Times (Obituaries, 4 August 2008) reported that “John Thornes was one of the most eminent and influential physical geographers of his generation.” John’s keen interest in understanding landform processes and evolution was furthered through a variety of methods and informed across a range of disciplinary boundaries. In particular he pushed for better integration of monitoring, theoretical and simulation modelling, field and laboratory experimentation and remote sensing techniques. Although dominated by an interest in the Mediterranean region and problems of land degradation, his research activities ranged across a number of time scales and with other environmental perspectives. This collection of papers reflects this wide range of John’s interests through the recent work of scientists and professionals most strongly influenced by his rigorous training or leadership. The thematic focus of the book, which runs through all of the main contributions, is the integration of different methodologies and the application of this approach to improved understanding of natural systems and the development of appropriate strategies for environmental and resource management. Short overviews of John’s contributions to geomorphological research are also presented to provide context for the origins of this book.