My research concerns the impacts of human activity and Quaternary
climate change on vegetation and landscapes of tropical Latin America,
the Caribbean, and
With Dr. Ken Orvis of the Department of Geography, I co-direct a suite of laboratories in the Science and Engineering Research Facility that together make up the Laboratory of Paleoenvironmental Research. These include facilities for the study of ancient soils and sediments (and the plant and other fossils they contain) as recorders of past environmental conditions including past climate, vegetation, fire, and human history; of modern soils and sediments and their environmental relationships; and of modern and historic landscapes and climate. The analysis and modeling of contemporary patterns and processes are of interest in their own right, and are also fundamental to our ability to understand evidence of past conditions preserved in soils and sediments and to apply this knowledge to questions of future global change. The Laboratory of Paleoenvironmental Research originally included a small tree-ring lab, which was subsequently spun off and developed by Dr. Henri Grissino-Mayer into the Laboratory of Tree-Ring Science (of which Grissino-Mayer is Director and Dr. Orvis and I are Associate Directors). The Laboratory of Paleoenvironmental Research collaborates with the Laboratory of Tree-Ring Science, with Dr. Claudia Mora’s Stable Isotope Lab, with other labs at UTK through the Global Environmental Change Research Group, and with laboratories at other universities and research centers.
Click here for a list of Professor Horn's recent publications