2015/01/01 by Patrice Cannavo, Cannavo, Patrice, Laure Vidal Beaudet +13
Agricultural and Biological Sciences · Engineering · #0 #0rganic matter #Agroforestry and silvopastoral systems #Arbre #Hydrodynamic properties #Matière organique #Propriétés hydrodynamiques #Racines #Roots #Technosol #Tree #Tree Root and Stability Studies #Urban Agriculture and Sustainability
paper · pdf · doi:10.15454/1.4622655320234775e12
openalex publication_date 2015/01/01 · openalex created_date 2021/02/15 · openalex updated_date 2026/07/15
People attracted by the cities use no reusable agricultural soil resource to extend cities and to provide green spaces of quality. Moreover, urban people produce large amounts of no reusable wastes. The objective of this study was to evaluate plant ability to develop in soils constructed with organic byproducts or mixed organic and mineral waste materials for urban greening. Since 2005, we carried out two studies on constructed soil hydrodynamic behavior in 500-l lysimeters and planted with trees. The first study consisted in studying the nature effect of organic products (green waste compost, sludge/wood chip cocompost) mixed to arable soil by 40% in volume on a growing media layer functioning, and the second consisted in studying soil support functioning constructed with various waste materials containing stony elements up to 70% (chalcedony or demolition rubble or track ballast). Results showed the importance of the nature and the maturity of the compost to create or maintain macroporosity (root aeration) and microporosity (water reserve) of constructed soils to favor root development. Soil-stone mixes constructed with wastes reduced soil compaction risk, proved their acceptable hydrodynamic functioning, and favored root development.