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SF Box - A tool for evaluating the effects on soil functions in remediation projects

Yevheniya Volchko (Institutionen för bygg- och miljöteknik, Geologi och geoteknik ; FRIST kompetenscentrum ) ; Jenny Norrman (Institutionen för bygg- och miljöteknik, Geologi och geoteknik ; FRIST kompetenscentrum ) ; Lars Rosén (Institutionen för bygg- och miljöteknik, Geologi och geoteknik ; FRIST kompetenscentrum ) ; Tommy Norberg (Institutionen för matematiska vetenskaper, matematisk statistik ; FRIST kompetenscentrum )
Integrated Environmental Assessment and Management (1551-3793). Vol. 10 (2014), 4, p. 566-575.
[Artikel, refereegranskad vetenskaplig]

Although remediation is usually aimed at reducing the risks posed by contaminants to human health and the environment, it is also desirable that the remediated soil within future green spaces is capable of providing relevant ecological functions, e.g. basis for primary production. While addressing a contamination problem by reducing contaminant concentration/amounts in the soil, the remedial action itself can lead to soil structure disturbances, decline in organic matter and nutrient deficiencies, and in turn affect a soil's capacity to carry out its ecological soil functions. This paper presents the SF Box (Soil Function Box) tool that is aimed to facilitate integration of information from suggested soil quality indicators (SQIs) into a management process in remediation using a scoring method. The scored SQIs are integrated into a soil quality index corresponding to one of five classes. SF Box is applied on two cases from Sweden (Kvillebäcken and Hexion), explicitly taking into consideration uncertainties in the results by means of Monte Carlo simulations. At both sites the generated soil quality indices corresponded to a medium soil performance (soil class 3) with a high certainty. The main soil constraints at both Kvillebäcken and Hexion were associated with biological activity in the soil, as soil organisms were unable to supply plant-available nitrogen. At the Kvillebäcken site the top layer had a content of coarse fragment (ø > 2mm) higher than 35%, indicating plant rooting limitations. At the Hexion site, the soil had limited amount of organic matter, thus poor aggregate stability and nutrient cycling potential. In contrast, the soil at Kvillebäcken was rich in organic matter. The soils at both sites were capable to store a sufficient amount of water for soil organisms between precipitations.

Nyckelord: contaminated sites/soil; remediation; soil functions; soil quality index; soil quality indicators

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Denna post skapades 2014-08-19. Senast ändrad 2015-08-21.
CPL Pubid: 201580


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Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Geologi och geoteknik (2005-2017)
FRIST kompetenscentrum
Institutionen för matematiska vetenskaper, matematisk statistik (2005-2016)


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