title: Model for the study of the impact of atmospheric heavy metals on soil microbial biomass.
abstract: In the Castelporziano (Rome) protected area the inputs of atmospheric heavy metals on the soil-plant system were evaluated by the analysis of stem-flowing water from Quercus ilex L. The heavy metals detected in the soil under the canopies exhibited higher concentrations near to the tree trunks, highlighting the tree's capacity to concentrate such polluting substances. Microbial biomass, its specific respiration and the biomass calculated as a percentage of total soil organic matter, were utilised as indicators of the state of the soil and consequently also its quality with respect to heavy metal contamination.
authors.affiliation: Istituto Sperimentale per la Nutrizione delle Piante, Rome. nutrazotata@isnp.it
authors.forename: M
authors.initials: M
authors.lastname: Marchionni
authors.forename: A
authors.initials: A
authors.lastname: Benedetti
authors.forename: C
authors.initials: C
authors.lastname: Riccardi
authors.forename: M
authors.initials: M
authors.lastname: Villarini
mesh_terms: D000393:Air Pollutants / Q000009:adverse effects* / Q000032:analysis; D018533:Biomass; D004784:Environmental Monitoring; D004787:Environmental Pollution / Q000009:adverse effects / Q000032:analysis / Q000331:legislation & jurisprudence; D019216:Metals, Heavy / Q000494:pharmacology* / Q000592:standards; D012384:Rome; D012987:Soil / Q000032:analysis; D012988:Soil Microbiology / Q000592:standards; D014197:Trees / Q000187:drug effects* / Q000502:physiology; D014874:Water Pollutants, Chemical / Q000009:adverse effects / Q000032:analysis
chemical_list: D000393:Air Pollutants; D019216:Metals, Heavy; D012987:Soil; D014874:Water Pollutants, Chemical