title: The combination of compost addition and arbuscular mycorrhizal inoculation produced positive and synergistic effects on the phytomanagement of a semiarid mine tailing.
abstract: A field experiment was carried out to assess the effectiveness of combining mycorrhizal inoculation with a native AM fungus (Glomus sp.) and the addition of an urban organic waste compost (OWC) applied at two rates (0.5 and 2.0% (w:w)), with regard to promoting the establishment of Anthyllis cytisoides L. seedlings in a heavy metal polluted mine tailing, as well as stimulating soil microbial functions. The results showed that the combined use of the highest dose of OWC and AM inoculation significantly increased shoot biomass - by 64% - compared to the control value. However, the separate use of each treatment had no effect on the shoot biomass of this shrub species. At the 2% rate, OWC enhanced root colonisation by the introduced fungus as well as soil nutrient content and soil dehydrogenase and ß-glucosidase activities. The combined treatment increased the uptake of Zn and Mn in shoots, although only Zn reached excessive or potentially toxic levels. This study demonstrates that the combination of organic amendment and an AM fungus is a suitable tool for the phytomanagement of degraded mine tailings, although its effectiveness is dependent on the dose of the amendment.
authors: Freie Universität Berlin, Institut für Biologie, Plant Ecology, Altensteinstr. 6, D-14195 Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195 Berlin, Germany.
authors: J
authors: J
authors: Kohler
authors: CSIC-Centro de Edafología y Biología Aplicada del Segura, Department of Soil and Water Conservation, P.O. Box 164, Campus de Espinardo, 30100 Murcia, Spain. Electronic address: fcb@cebas.csic.es.
authors: F
authors: F
authors: Caravaca
authors: CSIC-Estación Experimental del Zaidín, Microbiology Department, Profesor Albareda, 1, 18008 Granada, Spain.
authors: R
authors: R
authors: Azcón
authors: Universidad Miguel Hernández de Elche, Department of Applied Biology, Avda, Ferrocarril, s/n. Edf. Laboratorios, 03202 Elche, Alicante, Spain.
authors: G
authors: G
authors: Díaz
authors: CSIC-Centro de Edafología y Biología Aplicada del Segura, Department of Soil and Water Conservation, P.O. Box 164, Campus de Espinardo, 30100 Murcia, Spain.
authors: A
authors: A
authors: Roldán
mesh_terms: D001673:Biodegradation, Environmental; D002980:Climate; D052918:Environmental Restoration and Remediation / Q000379:methods*; D019216:Metals, Heavy / Q000032:analysis; D008906:Mining; D038821:Mycorrhizae; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis
chemical_list: D019216:Metals, Heavy; D012989:Soil Pollutants
keywords: Heavy metal contamination; Legume shrub; Mycorrhizal inoculation; Organic residue; Phytostabilisation; Semiarid climate