Show simple item record

dc.contributor.authorSanchez, Deicy
dc.contributor.authorOblitas, Jimy
dc.contributor.authorHartshorn, Anthony
dc.contributor.authorMcDermott, Tim
dc.contributor.authorZabinski, nan
dc.contributor.authorNeuman, Dennis
dc.contributor.authorJennings, Stuart
dc.description.abstractThe landscape legacy of historical metal-mining activity can persist for decades. The most frequent strategies used for the remediation of contaminated soils include: the use of synthetic membranes to isolate contaminants, direct revegetation, or lime amendments. Looking for more cost-effective bioremediation approaches, we performed a set of greenhouse studies to determine what combinations of soil amendments would lead to the best vegetative response, and potentially associated reductions in soil arsenic (As) levels. In our first greenhouse experiment, we planted Leymus cinereus (basin wildrye) in tailings, compared (after 12 weeks) plant growth, and foliar metal concentrations across treatments. Amendments included single or factorial additions of lime, 5% organic matter (+OM), and an arsenic-oxidizing (+oxbact) strain of Agrobacterium tumefaciens (Agtu). For the first experiment, only one level of OM amendment was tested (5%) and a second greenhouse experiment with two levels of OM (1.5% and 5%). In this second experiment, Basin wildrye grown in soils amended with 5% OM generally did better than those grown in soils amended with 1.5% OM and even better in soils amendment with 5% OM + oxbact. These results suggest the combination of OM and Agtu oxbact strain could provide a potentially cost- effective approach to remediating As-contaminated soils.en_US
dc.publisherLACCEI Inc.en_US
dc.rightsLACCEI License
dc.subjectSoil Amendmentsen_US
dc.subjectMine Tailingsen_US
dc.subjectMining reclamationen_US
dc.titleEstablishment of vegetation in mine tailings using A. tumefaciens and organic matter
dc.description.countryUnited Statesen
dc.description.institutionMontana State Universityen
dc.description.trackBiotechnology, Bioinformatics and Nanotechnologyen

Files in this item


This item appears in the following Collection(s)

  • 2020 LACCEI - Virtual Edition
    The Eighteen LACCEI International Multi-Conference for Engineering, Education Caribbean Conference for Engineering and Technology.

Show simple item record