Influence of rhizosphere microbial ecophysiological parameters from different plant species on butachlor degradation in a riparian soil

Journal of Environmental Quality
Changming YangJianhua Li

Abstract

Biogeochemical processes in riparian zones regulate contaminant movement to receiving waters and often mitigate the impact of upland sources of contaminants on water quality. However, little research has been reported on the microbial process and degradation potential of herbicide in a riparian soil. Field sampling and incubation experiments were conducted to investigate differences in microbial parameters and butachlor degradation in the riparian soil from four plant communities in Chongming Island, China. The results suggested that the rhizosphere soil had significantly higher total organic C and water-soluble organic C relative to the nonrhizosphere soil. Differences in rhizosphere microbial community size and physiological parameters among vegetation types were significant. The rhizosphere soil from the mixed community of Phragmites australis and Acorus calamus had the highest microbial biomass and biochemical activity, followed by A. calamus, P. australis and Zizania aquatica. Microbial ATP, dehydrogenase activity (DHA), and basal soil respiration (BSR) in the rhizosphere of the mixed community of P. australis and A. calamus were 58, 72, and 62% higher, respectively, than in the pure P. australis community. Compared with t...Continue Reading

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Citations

Aug 20, 2016·Environmental Science and Pollution Research International·Shahla Hosseini Bai, Steven M Ogbourne
May 22, 2020·Current Microbiology·Ravneet Kaur, Dinesh Goyal

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