Green roof ageing or Isolatic Technosol’s pedogenesis?
| Autor: | Geoffroy Séré, Ryad Bouzouidja, Violaine Galzin, Gustave Rousseau, David Lacroix, Rémy Claverie |
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| Přispěvatelé: | Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement - Direction Est (Cerema Direction Est), Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement (Cerema), Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement - Equipe-projet TEAM (Cerema Equipe-projet TEAM), Laboratoire d'Energétique et de Mécanique Théorique Appliquée (LEMTA ), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Énergies et Mécanique Théorique et Appliquée (LEMTA ) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Total organic carbon
Ecology Stratigraphy chemistry.chemical_element Soil science 04 agricultural and veterinary sciences Technosol 15. Life on land 010501 environmental sciences 01 natural sciences Nitrogen Pedogenesis chemistry Particle-size distribution Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Green roof Isolatic Technosols Substrate Temporal changes Runoff [SDE.BE]Environmental Sciences/Biodiversity and Ecology Porosity Chemical composition 0105 earth and related environmental sciences Earth-Surface Processes |
| Zdroj: | Journal of Soils and Sediments Journal of Soils and Sediments, Springer Verlag, 2018, 18 (2), pp.418-425. ⟨10.1007/s11368-016-1513-3⟩ |
| ISSN: | 1439-0108 1614-7480 |
| DOI: | 10.1007/s11368-016-1513-3⟩ |
| Popis: | International audience; Purpose Green roofs (GR) offer a way to improve several ecosystem services in cities. However, the performances of GR are basically considered as steady over time whereas they are living media subject to ageing that are rarely managed by their owners. This study transposes a pedological approach to evaluate changes in GR physical structure and chemical composition over time.Materials and methods A full-scale experimental plot with various vegetation cover was studied. A dedicated sampling strategy was implemented to monitor substrate’s evolution over 4 years. Then, physical and chemical characterisation (carbon and nitrogen contents, particle size distribution, porosity, soil water retention) was conducted and compared to results on the original substrate.Results and discussion The upper layer of the substrate (0 to 5 cm depth) contained a large amount of fine and short roots whereas the root density was much smaller in the lower layer of the substrate (5 to 10 cm depth). There was a global drop of the organic carbon content from 5 % in the initial substrate to 2 % in the 4-year-old substrate. On the contrary, the nitrogen concentration has increased by 0.4 % during the same period. Themesoporosity decreased drastically from 0.11 to 0.02 cm3 cm−3.On the whole substrate, the |
| Databáze: | OpenAIRE |
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