2021/02-2023/07 @State Key Laboratory of Estuarine and Coastal Research

Supervised by Prof. Yanling ZHENG and Dr. Yuhui NIU 

I participated in the research on microbial dynamics and activity of denitrifying anaerobic methane oxidation (DAMO) and explored influencing factors of anthropogenic processes (eutrophication and antibiotics). The main work concentrated on the effects of antibiotic sulfamethazine (SMT) on DAMO in the estuarine sediments. 

I conducted long-term slurry incubation experiments of 3 months in SMT concentration gradients, measured environmental parameters, periodically measured DAMO rates with GC and GC-IRMS, quantified the genes related to DAMO, methane emission, and antibiotic resistance with molecular biology methods (PCR/qPCR and metagenomics), and analyzed data and mechanisms. The findings were interesting: low-dose promotion and high-dose inhibition in DAMO processes, which is crucial to coastal restoration and climate change. Molecular analyses suggest that the increased DAMO activity under high-dose SMT exposure may be driven by changes in microbial communities, especially because of the promotion of methanogens that provide more CH4 to DAMO microbes.

The work is published in the Journal of Hazardous Materials and Science of the Total Environment.

2023/09-Present @Z Lab

Supervised by Dr. Yulun ZHOU and Dr. Pingyu FAN 

I measured diurnal variations of urban net carbon dioxide (CO2) emissions in global cities, conducted data engineering based on satellite remote sensing, and investigated domain drivers of CO2 regional emission patterns with machine learning methods. The project served for high-resolution urban carbon management and carbon neutrality of the Chinese government.

Working on...