TITLE

甜菜-牧草体系对土壤中4种邻苯二甲酸酯的修复研究

AUTHOR(S)
魏丽琼; 呼世斌; 王娇娇; 柴琴琴; 刘晋波; 王梦柯; 史超
PUB. DATE
June 2016
SOURCE
Journal of Agro-Environment Science;2016, Vol. 35 Issue 6, p1097
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A pot experiment was conducted to study the phytoremediation of 4 phthalic acid esters(DEP, DBP, BBP and DEHP) by different planting patterns with beet and 3 grasses(ryegrass, sudangrass and alfalfa) in contaminated soil. Greater reduction of phthalic acid esters was observed in treatments with plants than without plants, and in intercropping than monoculture. Alfalfa monoculture and intercropping both had better remediation effects than other plants did. Beet/alfalfa intercropping removed over 65% of PAEs. Intercropping enhanced the activities of catalase and phosphatase in soil, thus promoting the degradation of PAEs. In both soil and the shoots of the tested plants, DEHP and DBP had much higher concentrations than the other PAEs studied did. Their removal efficiencies were also higher, with DEHP greater than 50% and DBP over 40%. Bioconcentration factor(BCF) of DEHP was significantly low in the shoots of the tested plants, while that of DBP and BBP was high. Alfalfa could be used as a phytoremediator of phthalic acid esters in soil. Plant intercropping would provide greater remediation efficiency than monoculture.
ACCESSION #
118016650

 

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