Constructed Technosols: A Strategy toward a Circular Economy

Soil is a non-renewable natural resource. However, the current rates of soil usage and degradation have led to a loss of soil for agriculture, habitats, biodiversity, and to ecosystems problems. Urban and former industrial areas suffer particularly of these problems, and compensation measures to res...

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Main Authors: Debora Fabbri, Romeo Pizzol, Paola Calza, Mery Malandrino, Elisa Gaggero, Elio Padoan, Franco Ajmone-Marsan
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/8/3432
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author Debora Fabbri
Romeo Pizzol
Paola Calza
Mery Malandrino
Elisa Gaggero
Elio Padoan
Franco Ajmone-Marsan
author_facet Debora Fabbri
Romeo Pizzol
Paola Calza
Mery Malandrino
Elisa Gaggero
Elio Padoan
Franco Ajmone-Marsan
author_sort Debora Fabbri
collection DOAJ
description Soil is a non-renewable natural resource. However, the current rates of soil usage and degradation have led to a loss of soil for agriculture, habitats, biodiversity, and to ecosystems problems. Urban and former industrial areas suffer particularly of these problems, and compensation measures to restore environmental quality include the renaturation of dismissed areas, de-sealing of surfaces, or the building of green infrastructures. In this framework, the development of methodologies for the creation of soils designed to mimic natural soil and suitable for vegetation growth, known as constructed soils or technosols, are here reviewed. The possible design choices and the starting materials have been described, using a circular economy approach, i.e., preferring non-contaminated wastes to non-renewable resources. Technosols appear to be a good solution to the problems of land degradation and urban green if using recycled wastes or by-products, as they can be an alternative to the remediation of contaminated sites and to importing fertile agricultural soil. Nevertheless, waste use requires analysis to ensure the salubrity of the starting materials. Moreover, materials produced on site or nearby minimize the cost and the environmental impact of transport, thus the involvement of local stakeholders in the urban land management must be encouraged.
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spelling doaj.art-7962ea9b2acc4a52a8fbb3be951ae3052023-11-21T15:08:07ZengMDPI AGApplied Sciences2076-34172021-04-01118343210.3390/app11083432Constructed Technosols: A Strategy toward a Circular EconomyDebora Fabbri0Romeo Pizzol1Paola Calza2Mery Malandrino3Elisa Gaggero4Elio Padoan5Franco Ajmone-Marsan6Department of Chemistry, University of Turin, via P. Giuria 5, 10125 Turin, ItalyDepartment of Chemistry, University of Turin, via P. Giuria 5, 10125 Turin, ItalyDepartment of Chemistry, University of Turin, via P. Giuria 5, 10125 Turin, ItalyDepartment of Chemistry, University of Turin, via P. Giuria 5, 10125 Turin, ItalyDepartment of Chemistry, University of Turin, via P. Giuria 5, 10125 Turin, ItalyDepartment of Agricultural, Forestry and Food Sciences, University of Turin, 10095 Grugliasco, ItalyDepartment of Agricultural, Forestry and Food Sciences, University of Turin, 10095 Grugliasco, ItalySoil is a non-renewable natural resource. However, the current rates of soil usage and degradation have led to a loss of soil for agriculture, habitats, biodiversity, and to ecosystems problems. Urban and former industrial areas suffer particularly of these problems, and compensation measures to restore environmental quality include the renaturation of dismissed areas, de-sealing of surfaces, or the building of green infrastructures. In this framework, the development of methodologies for the creation of soils designed to mimic natural soil and suitable for vegetation growth, known as constructed soils or technosols, are here reviewed. The possible design choices and the starting materials have been described, using a circular economy approach, i.e., preferring non-contaminated wastes to non-renewable resources. Technosols appear to be a good solution to the problems of land degradation and urban green if using recycled wastes or by-products, as they can be an alternative to the remediation of contaminated sites and to importing fertile agricultural soil. Nevertheless, waste use requires analysis to ensure the salubrity of the starting materials. Moreover, materials produced on site or nearby minimize the cost and the environmental impact of transport, thus the involvement of local stakeholders in the urban land management must be encouraged.https://www.mdpi.com/2076-3417/11/8/3432constructed soilsland degradationremediationwaste recyclingorganic biowastes
spellingShingle Debora Fabbri
Romeo Pizzol
Paola Calza
Mery Malandrino
Elisa Gaggero
Elio Padoan
Franco Ajmone-Marsan
Constructed Technosols: A Strategy toward a Circular Economy
Applied Sciences
constructed soils
land degradation
remediation
waste recycling
organic biowastes
title Constructed Technosols: A Strategy toward a Circular Economy
title_full Constructed Technosols: A Strategy toward a Circular Economy
title_fullStr Constructed Technosols: A Strategy toward a Circular Economy
title_full_unstemmed Constructed Technosols: A Strategy toward a Circular Economy
title_short Constructed Technosols: A Strategy toward a Circular Economy
title_sort constructed technosols a strategy toward a circular economy
topic constructed soils
land degradation
remediation
waste recycling
organic biowastes
url https://www.mdpi.com/2076-3417/11/8/3432
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