title: Inter-regional variability in environmental availability of fungicide derived copper in vineyard soils: an Australian case study.
abstract: This study determined the environmental availability of copper (Cu) in Australian vineyard soils contaminated with fungicide derived Cu residues, and investigated the soil characteristics correlated with differences in Cu availability between regions. Concentrations of 0.01 M calcium chloride extractable Cu, measured in surface soils collected from 98 vineyards in 10 different grape-growing regions of Australia, ranged from <0.1 to 0.94 mg/kg and accounted for 0.10-1.03% of the total Cu concentrations in the soils. Differences in the calcium chloride extractable Cu concentrations were related to the total Cu concentration and soil properties, including pH, clay, exchangeable K, silt, and calcium carbonate. The information generated from this study may prove useful in devising strategies to reduce the availability and toxicity of Cu in agricultural soils.
authors.affiliation: School of Land, Crop and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia. adam.wightwick@dpi.vic.gov.au
authors.forename: Adam M
authors.initials: AM
authors.lastname: Wightwick
authors.forename: Scott A
authors.initials: SA
authors.lastname: Salzman
authors.forename: Suzanne M
authors.initials: SM
authors.lastname: Reichman
authors.forename: Graeme
authors.initials: G
authors.lastname: Allinson
authors.forename: Neal W
authors.initials: NW
authors.lastname: Menzies
mesh_terms: D001315:Australia; D003300:Copper / Q000737:chemistry*; D005659:Fungicides, Industrial / Q000737:chemistry*; D012987:Soil / Q000032:analysis; D012989:Soil Pollutants / Q000737:chemistry*; D027843:Vitis / Q000254:growth & development
chemical_list: D005659:Fungicides, Industrial; D012987:Soil; D012989:Soil Pollutants; D003300:Copper