Constructed Technosols: A Strategy toward a Circular Economy
Open Access
- 12 April 2021
- journal article
- review article
- Published by MDPI AG in Applied Sciences
- Vol. 11 (8), 3432
- https://doi.org/10.3390/app11083432
Abstract
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.Keywords
This publication has 90 references indexed in Scilit:
- Structure development in aggregates of poorly developed soils through the analysis of the pore systemCATENA, 2012
- Biochars Impact on Soil-Moisture Storage in an Ultisol and Two AridisolsSoil Science, 2012
- Improvement of soil structure formation by degradation of coarse organic matterGeoderma, 2011
- Coupling biogeochemical cycles in urban environments: ecosystem services, green solutions, and misconceptionsFrontiers in Ecology and the Environment, 2011
- HUMANITY'S TRANSFORMATION OF EARTH'S SOILSoil Science, 2007
- Psychological benefits of greenspace increase with biodiversityBiology Letters, 2007
- Organic pollutants in compost and digestate. : Part 1. Polychlorinated biphenyls, polycyclic aromatic hydrocarbons and molecular markersJournal of Environmental Monitoring, 2007
- Effects of Hydrophilic Polymer on the Survival of Buttonwood Seedlings Grown Under Drought StressJournal of Plant Nutrition, 2007
- Soil science as an interdisciplinary synthetic scienceEurasian Soil Science, 2006
- Benefits of treating a sandy soil with a crosslinked-type polyacrylamideAustralian Journal of Experimental Agriculture, 2006