Table of Contents

PART ONE THE NATURAL HERITAGE AND THE SOILS RESOURCE: Soils and Sustainability - A Natural Heritage Perspective, J E Gordon, N Gubbins, A G Taylor and A P McKirdy; The Soil Ecosystem and Sustainability, M B Usher; Soil Change in Scotland - The Legacy of Past Improvement Processes, D A Davidson and T C Smout; The Monitoring of Soil Properties, M F Billett; The Scottish Soil Resource - its Current Status and Future Priorities for its Management, S J Langan, E Paterson and A G Taylor; Posters: Bellow-ground Biodiversity - A Literature Review for the British Isles, particularly Scotland, R Moore, A R Anderson, D Ray, C Walker, D G Pyatt, H F Evans, C I Carter, N A Straw, D Wainhouse and T G Winter; Organic and Physical Components of Soil Quality, B C Ball, M V Cheshire and A G Robertson; The Soil Resource of Scotland, J S Bell, F T Dry, J H Gauld, G Hudson, A Lilly and W Towers. PART TWO POLLUTION AND ENVIRONMENTAL CHANGE: Acid Deposition and Soils - A Perspective for Nature Conservation, S A Barcham; Climate Change, Soils and Sustainability, M D A Rounsevell, P Bullock and J Harris; Heavy Metals in Soils, I D Pulford; Sustainable Use of Sewage Sludge on Agricultural Land, M N Aitken; Posters: Nitrous Oxide Emissions from Soil Incorporation of Crop Residues, E M Baggs, R M Rees and K A Smith; Recycling of Sewage Sludge to Land, R Wolstenholme and B Davis; Restoration of Wet Heathland after Opencast Mining, D W Merrilees and G E D Tiley; Determination of Regeneration Times of Opencast Coal Spoil Planted with Alder, Using a Modelling Approach, R C Hood; Nitrate Leaching from Low and High Nitrogen Input Grassland Systems, P S Hooda, M Moynagh and I F Svoboda; Background Levels of Heavy Metals in Scottish Soils and the Implications for Recycling Sewage Sludge to Agricultural Land, W Towers and E Paterson. PART THREE SOILS AND LAND USE: Forestry, Soils and Sustainability, D C Malcolm and A J Moffat; One Approach to Sustainability in Agriculture: Applying Technology for the Benefit of Soils and the Natural Heritage, P H Pitkin and E J Tait; Soils and Sustainability - A Crofting View, M M Grantham; Soil Erosion and Sustainability, I C Grieve and J A Hipkin; Posters: The Impacts of Reindeer on Finnmark's Landscape, Northern Norway, R Evans; Soil Disturbance by Mechanical Scarification and Windthrow, E J F Cameron; Defining Biologically Sustainable Stocking Levels on Scottish Peatland: Shetland Case Study, R V Birnie; Catchment Water Quality in Relation to Land Use and Management Practices, P S Hooda, M Moynagh, I F Svoboda, H Anderson, M Thurlow and M Stewart; Application of Nitrogen Cycle Modelling to Land Use Policy Issues - Winter and Spring Cereal Cropping, A J A Vinten; A Snowmelt Generated Erosion Event in Fife, Scotland, R Wade. PART FOUR TOWARDS SUSTAINABILITY: Points of Departure in Soil Protection Policy in the Netherlands, F A M de Haan; Towards a Strategy for the Sustainability of the Soil.