Phytoremediation of Cu-contaminated vineyard soils in Brazil: A compendium of Brazilian pot studies.

Autor: Marques ACR; Department of Biology, Federal University of Santa Maria, Santa Maria, Brazil., Tiecher TL; Federal Institute of Education, Science and Technology of Rio Grande do Sul (IFRS), Porto Alegre, Brazil., Brunetto G; Department of Soil, Federal University of Santa Maria, Santa Maria, Brazil., Vendruscolo D; Riograndense Association of Technical Assistance and Rural Extension Enterprises (EMATER / RS), Pinhal Grande, Brazil., De Conti L; Farroupilha Federal Institute of Education, Science and Technology, Santo Augusto, Brazil., Ambrosini VG; Department of Soils, Federal University of Rio Grande do Sul, Porto Alegre, Brazil., Miotto A; Federal Institute of Education, Science and Technology of Santa Catarina, São Miguel do Oeste, Brazil., Rosa DJ; Department of Biology, University of British Columbia, Kelowna, British Columbia, Canada., da Silva ICB; Department of Soil, Federal University of Santa Maria, Santa Maria, Brazil., Trentin E; Department of Soil, Federal University of Santa Maria, Santa Maria, Brazil., Ferreira PAA; Department of Soil, Federal University of Santa Maria, Santa Maria, Brazil., Jacques RJS; Department of Soil, Federal University of Santa Maria, Santa Maria, Brazil., Pescador R; Department of Phytotechnics, Federal University of Santa Catarina, Florianópolis, Brazil., Comin JJ; Department of Phytotechnics, Federal University of Santa Catarina, Florianópolis, Brazil., Ceretta CA; Department of Soil, Federal University of Santa Maria, Santa Maria, Brazil., de Melo GWB; Embrapa Grape and Wine, Bento Gonçalves, Brazil., Parent LÉ; Department of Soils and Agrifood Engineering, Université Laval, Québec, Quebec, Canada.
Jazyk: angličtina
Zdroj: Journal of environmental quality [J Environ Qual] 2023 Sep-Oct; Vol. 52 (5), pp. 1024-1036. Date of Electronic Publication: 2023 Aug 02.
DOI: 10.1002/jeq2.20503
Abstrakt: Vineyard soils can be contaminated by copper (Cu) due to successive applications of fungicides and organic fertilizers. Soil remediation can be addressed by altering soil properties or selecting efficient Cu-extracting cover crops tolerant to Cu toxicity. Our objectives were to synthesize the Cu-extracting efficiency by plant species tested in Brazil, classify them according to Cu resistance to toxicity, and assess the effect of soil properties on attenuating Cu toxicity. We retrieved results from 41 species and cultivars, totaling 565 observations. Freshly added Cu varied between 50 and 600 mg Cu kg -1 of soil across studies. The partition of Cu removal between the above- and below-ground portions was scaled as a logistic variable to facilitate data synthesis. The data were analyzed using the Adaboost machine learning model. Model accuracy (predicted vs. actual values) reached R 2  = 0.862 after relating species, cultivar, Cu addition, clay, SOM, pH, soil test P, and Cu as features to predict the logistic target variable. Tissue Cu concentration varied between 7 and 105 mg Cu kg -1 in the shoot and between 73 and 1340 mg Cu kg -1 in the roots. Among soil properties, organic matter and soil test Cu most influenced the accuracy of the model. Phaseolus vulgaris, Brassica juncea, Ricinus communis, Hordeum vulgare, Sorghum vulgare, Cajanus cajan, Solanum lycopersicum, and Crotolaria spectabilis were the most efficient Cu-extracting cover crops, as shown by positive values of the logistic variable (shoot removal > root removal). Those Cu-tolerant plants showed differential capacity to extract Cu in the long run.
(© 2023 The Authors. Journal of Environmental Quality © 2023 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.)
Databáze: MEDLINE
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