Post-Doctoral Scholar，Xiamen University (1998-2000)
Professor, Xiamen University (1999--)
Visiting Professor，Exeter University，UK（2004）
Visiting Professor，Imperial College London，UK（2007）
Our major research focus on the biogeochemical process of heavy metals and organic pollutants (POPs) in wetland ecosystem（water/sediment/plant）. We have made some progress in distribution of heavy metals and the relationship between them and plants, environmental conditions and chemical-physical properties in estuary sediments, speciation distribution of heavy metal in the mangrove sediment，the influence of mangrove roots on bio-availability of heavy metals.