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Journal of Shanghai University >

2022 , Vol. 28 >Issue 1: 31 - 39

DOI: https://doi.org/10.12066/j.issn.1007-2861.2233

Research Articles

Effects of diesel fuel and Cd pollution on enzyme activity and microbial biomass in the soil

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  • School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China

Received date: 2019-11-07

  Online published: 2020-06-30

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Abstract

A pot experiment was conducted to study the effects of pollutants of diesel fuel and Cd alone or in combination on the activities of urease (UR) and dehydrogenase (DE) and microbial biomass in non-polluted paddy soil collected from an urban setting in Shanghai. The experiment included seven treatments: control (CK), low content of diesel fuel (CYL), high content of diesel fuel (CYH), low content of Cd (CdL), high content of Cd (CdH), combination of high content of diesel fuel and Cd (CYH+CdH), and combination of high content of diesel fuel, Cd and crop seedlings (CYH+CdH+P). The activity of UR was significantly raised when the soil was polluted with CYH and Cd for the treatments of CYH and CYH + CdH. The maximum UR for the two treatments was 5.25 and 2.63 times that of CK, respectively. The microbial biomass for the treatments was also correspondingly raised to some extent. Conversely, the activity of DE in the soil for the CYL, CYH and CYH + CdH treatments was significantly inhibited. The influence of Cd on DE activity in the soil was relatively mild. DE was activated even when the soil was polluted with CdL.

Key words： diesel fuel; Cd; soil; urease (UR); microbial biomass

Cite this article

HE Zichen, HU Xuefeng, LU Siwen, ZHAO Jinglong, LAN Guojun, LI Mei, ZHANG Weijie . Effects of diesel fuel and Cd pollution on enzyme activity and microbial biomass in the soil[J]. Journal of Shanghai University, 2022 , 28(1) : 31 -39 . DOI: 10.12066/j.issn.1007-2861.2233

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