Recupero ambientale di un suolo degradato e desertificato mediante una nuova tecnologia di trattamento di ricostituzione del terreno: indagini preliminari

Translated title of the contribution: [Autom. eng. transl.] Environmental recovery of degraded and desertified soil through a new soil reconstitution treatment technology: preliminary investigations

Chiara Cassinari, Marina Gatti, Marco Trevisan, Sotirios Vasileiadis, Claudio Baffi, Aldo Giomo, Paolo Manfredi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

[Autom. eng. transl.] The restoration of degraded soils takes on an important value in the field of environmental protection and available resources. The project LIFE10ENV IT 400 "New Life" (Life + 2010) aims to enhance an area of 200,000 m2, which is part of the river protection zone called Basso Trebbia Regional Park, located on the right bank of the river Trebbia in near its confluence with the Po. The area was used as an authorized MSW landfill from 1972 to 1985, and, once the activity was closed, covered with a layer of about 0.50 m of land in an attempt to favor the environmental restoration of places. The soil currently has many characteristics of degradation such as loss of structure, compaction and waterproofing, not able to support the development of tree and herbaceous species. The naturalistic restoration of this environment, which will involve the construction of a botanical park, involves the testing of a new reconstitution technology developed and patented by MCM Ecosystems (Pat N ° 0001363631). The first action of the project is aimed at the chemical-physical and microbiological characterization of the soil, the screening of the vegetation cover and of the hosted mesofauna. The purposes of this monitoring activity are those on the one hand to evaluate the endowment in stable organic substance and in potentially toxic elements (EPT) both from the quantitative and qualitative point of view, and on the other hand to provide timely information necessary for an intervention targeted on the recoverable soil thickness, and finally to set up experimental plots where the patented technology will be tested with the help of plots that will be studied. The sampling plan, according to a grid of regular meshes 75x75 m with a condensation up to meshes 25x25 m in areas with particular hydrodynamic effects, has identified 51 stations. The chemical-physical characterization of the subsoil concerning pH, CSC, total CaCO3, Ctot, Corg, Ntot, C / N ratio and the extractable content in aqua regia of the elements Al, As, Ba, Be, Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, Ni, Pb, Sb, Se, Sn, Te, Ti, Tl, V and Zn were followed by multivariate statistical analyzes such as hierarchical clustering (UPGMA algorithm) and principal component analysis (PCA ), through appropriate data standardization (Box-Cox transformation). According to the hierarchical analysis, 5 homogeneous groups of soils were identified which overlapped with the PCA results indicated a different influence of the factors considered on the observed variability: on the one hand the content of Corg, Ntot, EPT and high CSC, on the other High pH, CaCO3 and C / N, up to the largest group with modest content for all the parameters analyzed. Keywords: degraded soil, organic substance, potentially toxic elements
Translated title of the contribution[Autom. eng. transl.] Environmental recovery of degraded and desertified soil through a new soil reconstitution treatment technology: preliminary investigations
Original languageItalian
Title of host publicationatti del XXX Convegno Nazionale 2012 Società italiana di chimica agraria, la chimica agraria tra energia e ambiente
Pages43
Number of pages1
Publication statusPublished - 2012
EventLa chimica agraria tra energia e ambiente - Milano
Duration: 18 Sep 201219 Sep 2012

Conference

ConferenceLa chimica agraria tra energia e ambiente
CityMilano
Period18/9/1219/9/12

Keywords

  • suolo degradato

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