These proceedings of a NATO Advanced Research Workshop on "Environmental Reconstruction in Headwater Areas" provide a landmark in the evolution of a distinctive movement, perhaps an emerging new philosophy, within the practice of headwater management. The Headwater Control movement traces its history back to the First International Conference on Headwater Control, Prague, 1989. Throughout this brief history, Headwater Control has remained a typical environment movement 'ad hocracy'. At its meetings, for every convert to the multidisciplinary, integrative, practical, interventionist, and above-all 'green' ideals of the group, there have been several delegates who have found the whole concept both new and slightly incomprehensible. One reason for this has been the Headwater Control practice of trying to bring together scientists, practitioners, policy-makers and non-government environmentalist organisations. The group's larger meetings have always been federal gatherings. Sponsorship has been shared with invited participation from associations representing hydrological science, soil conservation, erosion control, forestry, environmental activism and so forth. These delegations may have included fellow travellers in the work to protect headwater environments, but their main concerns have not necessarily coincided with the Headwater Control group's prescriptions for the environmental regeneration of headwater regions. The Liberec Workshop, whose proceedings are distilled into this volume, provided a first opportunity for the scattered supporters of Headwater Control to talk among themselves and fmd out to what degree there really is a shared vision of the way forward in headwater management, restoration and protection.

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Preface. Part 1: Overview. Impact of Human Activities in the Headwater Environment; H. Grip. Reviewing the Contexts of Headwater Control; J. Krecek, M.J. Haigh. Headwater Control: Despatches from the research front; M.J. Haigh. Holistic Approaches to Headwater Management. Perspectives from the Directorate of the European Union; A. Hocevar. Trees, Electricity and Folk Wisdom; F. Garczynski. Identification and Classification of European Headwaters; M.L. Paracchini, et al. Part 2: Headwater Control: Theory, Practice and Experience. Spatial Variability of the Hydrological Cycle and some Indicators of its State; A.F. Mandych. Application of Spatially Distributed Hydrological Models for Risk Assessment in Headwater Regions; G. Volk. Watershed Monitoring and Modelling: Remote Sensing and Gis Applications in the Mediterranean Environment; M.L. Paracchini, et al. Desertification / Aridification Monitoring of the Iberian Peninsula by Passive Microwave Remote Sensing; A.A. Van de Griend, et al. Erosion Area Assessment in Mountainous Basins using Gis Methods; L. Marchi, G. Dalla Fontana. Ravine and Gully Erosion in the Hilly Headwater Areas of Hungary; G. Gábris, et al. Prevention, Degradation and Rehabilitation: A New Dilmema in Himalayan Watersheds; H.S. Schreier, et al. Prevention of Nutrient Leaching from a Forst Regeneration Area Using Overland Flow Fields; E. Kubin, et al. Forest Management in Mountains. A Case study of a protection forest in Savoy, France; J.P. Renaud, F. Berger. Earthwatch Institute: Scientific Field Research, Public Education, and Global Responsibility; M.M. Studer. Part 3: Headwater Management: Some Regional Perspectives. Headwater Control in North America;H. Schreier. Headwater Problems in Africa; J. Balek. Headwater Control in Austria; G. Volk. Strategies for Headwater Control in Norway; E. Behiem. Groundwater Protection in Belarus; Y. Sedloukho. Part 4: Conclusions. Reconstructing Headwater Areas: Social and institutional considerations; B.P. Van Haveren. Conclusions and Recommendations; M.J. Haigh, J. Křeček. List of Contributors. List of Participants. Index.