Effects of the long-term application of atrazine on soil enzyme activity and bacterial community structure in farmlands in China

Environmental Pollution
Yufei LiuFuqiang Song

Abstract

Atrazine has been used on Chinese farmlands for a long time and over a wide range. The concentration of atrazine (1.86-1100 mg kg-1) has exceeded the allowable limit in the soil (1.0 mg kg-1), and concern is increasing about the potential harm to farmland soil. Four treatments (AT0, AT6, AT10, AT16) were established to reveal the effects of the long-term application of atrazine on soil health. The results showed a nonlinear regulation of the atrazine residue concentrations in the four treatments. The highest concentration of atrazine residue was in AT6, at 167 mg kg-1, and the lowest concentration of atrazine residue was in AT16, at 102 mg kg-1, but there was no significant difference between AT10 and AT16. The soil urease activity decreased significantly with the increase in the years of atrazine application, the saccharase and cellulase activities in the AT6 were significantly higher than those observed in the other three treatments, the catalase activity gradually decreased with the increase in atrazine application years, and the activity in AT6 was significantly higher than that in AT16. A total of 238 genera were identified by Illumina MiSeq sequencing, and 28 dominant genera were screened. Atrazine significantly increased...Continue Reading

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Citations

Aug 29, 2020·Environmental Monitoring and Assessment·Swati MauryaSeema Makhija
Mar 5, 2021·Environmental Science and Pollution Research International·Longfei YuanYujian He
Mar 15, 2021·Environment International·Roberto Xavier Supe TulcanBaodong Wang
Apr 11, 2021·Journal of Hazardous Materials·Pengqiang DuYongquan Zheng
Jun 25, 2021·Ecotoxicology and Environmental Safety·Shuwen LuoYan-Qiu Liang

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