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Remediation effect of compost on soluble mercury transfer in a crop of Phaseolus vulgaris 被引量:1
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作者 Nora E.Restrepo-Sánchez Liliana Acevedo-Betancourth +1 位作者 Beatriz Henao-Murillo Carlos Peláez-Jaramillo 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2015年第5期61-67,共7页
We studied the dynamics of mercury(Hg) transfer in Phaseolus vulgaris plants grown in soil with Hg-doped compost at the maximum levels permitted by Colombian law on organic amendments. Quantitative evaluation of tra... We studied the dynamics of mercury(Hg) transfer in Phaseolus vulgaris plants grown in soil with Hg-doped compost at the maximum levels permitted by Colombian law on organic amendments. Quantitative evaluation of transfer was made in different plant organs: roots,stem, leaves, pods and seeds. Matrix effect was determined in doped soil assays, using soil with and without addition of compost. Results showed that the use of organic matter reduced Hg transfer to the plant and the amount transferred was differentially distributed to the organs. We observed an inverse relationship between concentration and distance from the body to the root. It was evident that transfer was mediated by quantitative factors;the greater the presence of mercury in soil, the larger the amount that will be transferred.Results also indicate the remedial effect of compost and the presence of a barrier, at the root level, against mercury translocation to the plant aerial parts. 展开更多
关键词 Trophic transfer mercury organic matter Soil pollution Remediation
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