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Evaluating the effects of phytoremediation with biochar additions on soil nitrogen mineralization enzymes and fungi

journal contribution
posted on 13.02.2019, 00:00 by M Zhang, J Wang, Shahla Hosseini Bai, Y Teng, Z Xu
Phytoremediation with biochar addition might alleviate pollutant toxicity to soil microorganism. It is uncertain to what extent biochar addition rate could affect activities of enzymes related to soil nitrogen (N) mineralization and alter fungal community under the phytoremediation. This study aimed to reveal the effects of Medicago sativa L. (alfalfa) phytoremediation, alone or with biochar additions, on soil protease and chitinase and fungal community and link the responses of microbial parameters with biochar addition rates. The alfalfa phytoremediation enhanced soil protease activities, and relative to the phytoremediation alone, biochar additions had inconsistent impacts on the corresponding functional gene abundances. Compared with the blank control, alfalfa phytoremediation, alone or with biochar additions, increased fungal biomass and community richness estimators. Moreover, relative to the phytoremediation alone, the relative abundances of phylum Zygomycota were also increased by biochar additions. The whole soil fungal community was not significantly changed by the alfalfa phytoremediation alone, but was indeed changed by alfalfa phytoremediation with 3.0% (w/w) or 6.0% biochar addition. This study suggested that alfalfa phytoremediation could enhance N mineralization enzyme activities and that biochar addition rates affected the responses of fungal community to the alfalfa phytoremediation. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.

Funding

Other

History

Volume

25

Issue

23

Start Page

23106

End Page

23116

Number of Pages

11

eISSN

1614-7499

ISSN

0944-1344

Publisher

Springer, Germany

Peer Reviewed

Yes

Open Access

No

Acceptance Date

28/05/2018

External Author Affiliations

Griffith University; Chinese Academy of Sciences; University of the Sunshine Coast; Chongqing Research Academy of Environmental Sciences, China

Era Eligible

Yes

Journal

Environmental Science and Pollution Research

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