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个人简介

Ph.D. Minnesota B.S. Northern Illinois

研究领域

Dr. Vasudevan's research is concerned with the fate of synthetic and naturally occurring organic and inorganic compounds. Her work focuses on the mechanisms by which organic and inorganic compounds interact with mineral surfaces in soil and aquatic environments. Central research issues include the study of sorption, desorption and coordination chemistry; surface complexation theory; mineral precipitation, dissolution, and weathering; and surface-assisted chemical transformation processes. Dr. Vasudevan and her group use a combination of controlled laboratory experiments, molecular and surface complexation modeling, and statistical tools in their research. Completed and current projects have emphasized the study of iron oxide rich soils, and pure phase minerals (iron, aluminum and titanium oxides, silica, and kaolinite) and include: Polar and ionic organic compound (pesticides/herbicides, pharmaceuticals) sorption-desorption in soils;, Sorption of organic ligands with -OH, -COOH, -NH2, heterocyclic N groups at the metal-oxide water interface; Influence of phosphate on organic compound retention in soils; Fluoride sorption to soils and associated aluminum release. Sorption of approved tracers and their potential use as surrogates for pesticide fate and transport; Chemometric analysis of pesticide and pharmaceutical retention in soils

近期论文

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Ames, E. P. and J. Lichter. 2013. Gadids and alewives: structure within complexity in the Gulf of Maine. Fisheries Research 141:70-78. Lichter, J. and E.O. Ames. 2012. Reaching into the past for future relilience: Recovery efforts in Maine rivers and coastal waters. Maine Policy Review. 21:96-102. Lichter, J., M.E. H. Burton, S.L. Close, J.M. Grinvalsky, and J. Reblin. 2011. Waterfowl habitat change over five decades in a freshwater tidal ecosystem in mid-coast Maine. Northeastern Naturalist 18: 161-176. Drake, J. E., E. H. DeLucia, A. Gallet-Budynek, K. S. Hofmachel, E. S. Bernhardt, S. A Billings, R. D. Jackson, J. Lichter, M. L. McCormack, D. J. P. Moore, R. Oren, S. Palmroth, R. P. Phillips, J. S. Pippen, S. G. Pritchard, K. K. Treseder, and A. C. Finzi. 2011. Increase in the flux of carbon belowground stimulate nitrogen uptake and sustain the long-term enhancement of forest productivity under elevated CO2. Ecology Letters 14: 349-357. Billings, S. A., J. Lichter, S. E. Ziegler, B. A. Hungate, and D. B. Richter. 2010. A call to investigate drivers of soil organic matter retention vs. mineralization in a high CO2 world. Soil Biology and Biochemistry 42: 665-668. Lichter, J. S. Billings, S. Ziegler, D. Gaindh, R. Ryals, A. C. Finzi, R. B. Jackson, E. A. Stemmler, and W. H. Schlesinger. 2008. Soil carbon sequestration in a pine forest after nine years of atmospheric CO2 enrichment. Global Change Biology 14:2910-2922. *Nature Reports-Climate Change (January 2009) 3:2. Koster, D., J. Lichter, P. D. Lea, and A. Nurse. 2007. Historical eutrophication in a river-estuary complex in mid-coast Maine. Ecological Applications 17:765-778. Lichter, J., H. Caron, T. Pasakarnis, S. Rodgers, T. S. Squiers, Jr., and C. S. Todd. 2006. The ecological collapse and partial recovery of a freshwater tidal ecosystem. Northeastern Naturalist 13:153-178. Finzi, A., D. Moore, E. DeLucia, J. Lichter, K. Hofmackel, R. Jackson, H. Kim, R. Matamala, H. McCarthy, R. Oren, J. Pippen, and W. H. Schlesinger. 2006. Progrssive nitrogen limitation of ecosystem processes under elevated CO2 in a warm-temperate forest. Ecology 87:15-25. Peterson, T. S., A. Uesugi, and J. Lichter. 2005. Limitation of tree regeneration by introduced snowshoe hare on Kent Island, New Brunswick. Canadian Field Naturalist 119:569-572. Lichter, J., S.H. Barron, C. E. Bevacqua, A. C. Finzi, K.F. Irving, E.A. Stemmler, and W.H. Schlesinger. 2005. Soil carbon sequestration and turnover in a pine forest after six years of atmospheric CO2 enrichment. Ecology 86:1835-1847.

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