报告（一）：Mineral Surface Catalyzed Polymerization of Chemicals of Emerging Concern and Microbial Deactivation by Fe3+-Saturated Montmorillonite
报告人：Kang Xia，美国Virginia Tech教授
报告（二）：Microbial diversity in soils, roots and nodules of soybean: Bradyrhizobium spp variation across soils and plants
报告人：Mark Williams，美国Virginia Tech副教授
Dr. Kang Xia is a professor in Environmental Chemistry in the Department of Crop and Soil Environmental Sciences at Virginia Tech. USA. Her interdisciplinary research and teaching programs are focused on: 1) environmental occurrence and fate of anthropogenic organic chemicals and their impact on environmental health; 2) Analytical method development for organic chemicals in various complex environmental matrixes; 3) Wastewater treatment technologies for resource recovery and reuse; and 4) biogeochemistry of natural organic matter and its impact on terrestrial carbon, nitrogen, and phosphorus dynamics. Over the past 20 years Dr. Xia has worked with collaborators from a diverse academic, government, and industry backgrounds on various environmental related projects. She has obtained, as principle investigator and co-principle investigator, close to $9 million competitive research funding from state and federal funding agencies. She has taught 12 different environmental science related undergraduate and graduate courses. Dr. Xia has authored or co-authored 168 professional publications, including 48 peer-reviewed journal articles, 5 book chapters, 3 refereed conference proceeding papers, 14 invited presentations, and 110 conference presentation abstracts.
Dr. Mark Williams is an Associate Professor in Microbial Ecology in the Department of Department of Horticulture at Virginia Tech. USA. His interdisciplinary research and teaching programs are focused on: 1) Microbial ecology in plant rhizosphere and roots in relation to ecosystems processes; 2) microbial community responses to disturbances in plants, soil, and honeybees; 3) special focus on mutualistic plant interactions with Diazotrophs and mycorrhizal fungi; and4) biogeochemistry and soil community ecology of organic matter dynamics during ecosystem development. Over the last 15 years he has received a prestigious post-doctoral research award, over $3 million in research funding as lead and co-investigator from sources such as the U.S. National Science Foundation, the Bill and Melinda Gates foundation, and Department of Energy. Dr. Williams has taught five different courses, mostly at the graduate level, in the microbial, ecological, and microbiological sciences. He has published 42 peer reviewed articles in addition to many presentations at the national and international conferences.