Multiple complementary techniques were applied to track the composition and property changes of DOM along the vertical profile in a large deep tributary of the world’s largest Three Gorges Reservoir. The vertical increase of DOM recalcitrance likely contributes to the enhancement of organic carbon burial in TGR during the water-level rising period. (Wang et al., 2021, WR, advised by Prof. He)

The release and oxic transformation of oxygen-deficient aromatic compounds from sediment porewater could contribute to the refractory carbon pool of estuarine water, impacting the carbon transport from the land to the ocean. (Zhou et al., 2022, WR, advised by prof. He)

Abundances of δ²H and δ¹³C values of n-alkanes were measured from plants across a coastal wetland. Most of the geochemical proxies differed among plant habitats and between leaves and roots. Differences in the isotopic values are larger among plants than between the leaves and roots. (He et al., 2020, GCA)

Stable isotopes of taraxerol in mangroves leaves were imprinted in surface sediments, and early diagenesis may not significantly alter δ²H values of taraxerol. (He et al., 2022, GCA)

Random Forest classification models were used to effectively distinguish the samples from different habitats, and further assess the environmental specificity among the 123 biomarker compounds. (Tao et al., 2021, Chemical Geology, advised by Prof. He)

Predicting the carbon stable isotope compositions offshore China by using the inherent molecular compositions of SPE-DOM based on advanced machine learning models. (Yi et al., In Preparation)