Xiahong Feng
Professor
Department of Earth Sciences
Dartmouth College
United States of America
Biography
Xiahong Feng is currently working as Professor of Earth Sciences at Dartmouth College, USA. The main feature of her research is the interdisciplinary approach to global and local environmental problems. She use major and trace element concentrations and variations of stable isotopic ratios of oxygen, hydrogen, carbon and nitrogen in natural materials, such as rocks, water, tree-rings, soils and air, to study the function and dynamics of natural systems, to trace the history of the climatic and environmental changes and to understand the mechanisms for such changes. Recent projects include solute and contaminant transport in watersheds or in snow and their effects on stream chemistry, rates and mechanisms of plant and soil organic matter decomposition and the implications to the global carbon cycle, and reconstruction of paleohumidity using oxygen and hydrogen isotopic compositions of tree rings.
Research Interest
Studies of climate and environmental change using stable isotopes and major, Trace elements
Publications
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Shu , Y., Feng, X. , Posmentier, E.S., Faiia, A.M., Ayres, M.P., Conkey L.E. and Sonder L.J. (2008) Isotopic studies of leaf water 2. Between-age isotopic variations in pine needles. Geochimica et Cosmochimica Acta, 72, 5189-5200.
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Lee, J., Feng, X. , Posmentier, E.S., Faiia A.M. and Taylor S. (2009) Stable isotopic exchange rate constant between snow and liquid water. Chemical Geology , 260, 57-62.
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Lee J., X. Feng , A.M. Faiia, E.S. Posmentier, J.W. Kirchner, R. Osterhuber, S. Taylor (2010) Evolution of the isotopic composition of an alpine snow cover and its melt by isotopic exchange between liquid and ice, Chemical Geology, 270, 126-134.
