Microbial changes in rhizospheric soils contaminated with petroleum hydrocarbons after bioremediation

Article type: Research Article

Authors: LIN, Xin^; | LI, Pei-jun | XU, Hua-xia^; | ZHOU, Qi-xing | ZHANG, Hai-rong

Affiliations: Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China | Graduate School of Chinese Academy of Sciences, Beijing 100039, ChinaGraduate School of Chinese Academy of Sciences, Beijin 100039, China

Note: [] E-mail: [email protected]

Note: [] Corresponding author. E-mail: [email protected]

Abstract: Effects of bioremediation on microbial communities in soils contaminated with petroleum hydrocarbons are a scientific problem to be solved. Changes in dominate microbial species and the total amount of microorganisms including bacteria and fungi in rhizospheric soils after bioremediation were thus evaluated using field bioremediation experiments. The results showed that there were changed dominant microorganisms including 11 bacterial strains which are mostly Gram positive bacteria and 6 fungal species which were identified. The total amount of microorganisms including bacteria and fungi increased after bioremediation of microbial agents combined with planting maize. On the contrary, fungi in rhizospheric soils were inhibited by adding microbial agents combined with planting soybean.

Keywords: bioremediation, rhizosphere, microbial community, contaminated soil, petroleum hydrocarbon

Journal: Journal of Environmental Sciences, vol. 16, no. 6, pp. 987-990, 2004