Agroforestry for Sustainable Land-Use: Fundamental Research and Modelling with Emphasis on Temperate and Mediterranean Applications - Selected Papers from a Workshop Held in Montpellier, France, 23-29 June 1997

This volume comprises a selection of original contributions presented at a workshop held in Montpellier, France, in June 1997. The two main objectives of the workshop were, firstly, to bring together what is understood about the processes underlying agroforestry practice, and, secondly, to provide a forum to explore relevant models and modelling approaches. The workshop was also able to play a role in examining the agroforestry systems encountered in temperate and Mediterranean areas, including both traditional and more innovative agroforestry practices. The main aspects discussed were: ecological interactions amongst components, environmental impact, economics and policy modelling. Front Matter....Pages i-4 A review of belowground interactions in agroforestry, focussing on mechanisms and management options....Pages 5-34 Adequate design of control treatments in long term agroforestry experiments with multiple objectives....Pages 35-48 Nutrient cycling in an agroforestry system with runoff irrigation in Northern Kenya....Pages 49-70 Growth and nitrogen status of young walnuts as affected by intercropped legumes in a Mediterranean climate....Pages 71-80 Testing the safety-net role of hedgerow tree roots by 15 N placement at different soil depths....Pages 81-93 Temperature and water-use efficiency by lucerne ( Medicago sativa ) sheltered by a tree windbreak in Tunisia....Pages 95-108 Developing a canopy closure model to predict overstorey/understorey relationships in Pinus radiata silvopastoral systems....Pages 109-119 A simplified description of the three-dimensional structure of agroforestry trees for use with a radiative transfer model....Pages 121-134 Competition for light, water and nitrogen in an association of hazel ( Corylus avellana L.) and cocksfoot ( Dactylis glomerata L.)....Pages 135-150 Growth of widely spaced trees. A case study from young agroforestry plantations in France....Pages 151-167 Diameter and height growth curves for widely-spaced trees in European agroforestry....Pages 169-181 A model of tree-crop competition for windbreak systems in the Sahel: description and evaluation....Pages 183-201 Analysis for dry and wet years with the WIMISA model of tree-crop competition for windbreak systems in the Sahel....Pages 203-215 WaNuLCAS, a model of water, nutrient and light capture in agroforestry systems....Pages 217-242 Incorporating agroforestry practices in the management of walnut plantations in Dauphiné, France: an analysis of farmers’ motivations....Pages 243-256 Simulating integration of agroforestry into livestock farmers’ projects in France....Pages 257-272 Back Matter....Pages 273-275