Skip to Main content Skip to Navigation
Journal articles

Potential of technosols created with urban by-products for rooftop edible production

Abstract : Urban agriculture is sprouting throughout the world nowadays. New forms of urban agriculture are observed such as rooftop farming. In the case of low-tech rooftop farming projects, based on recycled urban waste, one of the key issues is the type of substrate used, as it determines the functions and ecosystem services delivered by the green roof. Using a five year experimental trial, we quantified the food production potential of Technosols created only with urban wastes (green waste compost, crushed wood, spent mushroom), as well as the soil fertility and the potential contamination of food products. Regarding food production, our cropping system showed promising results across the five years, in relation with the high fertility of the Technosols. This fertility was maintained, as well as the nutrients stocks after five cropping years. Most of the edible crops had trace metals contents below existing norms for toxic trace metals with nevertheless a concern regarding certain some trace metals such as Zn and Cu. There was no trace metal accumulation in the Technosols over time except for Zn. This study confirmed that constructing Technosols only from urban wastes is a suitable and efficient solution to design rooftops for edible production.
Document type :
Journal articles
Complete list of metadatas

Cited literature [53 references]  Display  Hide  Download

https://hal.inrae.fr/hal-02882344
Contributor : Marina Pavlidès <>
Submitted on : Friday, June 26, 2020 - 4:14:31 PM
Last modification on : Friday, October 9, 2020 - 12:30:28 PM

File

2020Grard-IJERPH.pdf
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

Baptiste Grard, Nastaran Manouchehri, Christine Aubry, Nathalie Frascaria-Lacoste, Claire Chenu. Potential of technosols created with urban by-products for rooftop edible production. International Journal of Environmental Research and Public Health, MDPI, 2020, 17 (9), ⟨10.3390/ijerph17093210⟩. ⟨hal-02882344⟩

Share

Metrics

Record views

95

Files downloads

69