Testing the sustainability and sensitivity to climatic change of terrace agricultural systems in the Peruvian Andes: a pilot study |
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| Institution: | 1. Department of Geography, Royal Holloway, University of London, Egham Hill, Egham, Surrey TW20 0EX, UK;2. 2 Spinner''s Court, 55 West End, Witney, Oxon OX8 6NJ, UK;3. San Cristóbal de Huamanga National University, P.O. Box 220, Ayacucho, Peru;1. Departamento de Ingeniería Civil y Ambiental, Universidad de los Andes, Bogotá, Colombia;2. Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA, USA;1. International Potato Center (CIP), Apartado 1558, Lima, 12, Peru;2. University of Florida, North Florida Research and Education Center, Marianna, FL, 32446, USA;3. Gansu Provincial Key Laboratory of Aridland Crop Science, Crop Genetic and Germplasm Enhancement, Agronomy College, Gansu Agricultural University, Lanzhou, 730070, China;4. Département des sciences biologiques, Université du Québec à Montréal, Montréal, Québec, H2X 3Y5, Canada;1. Byrd Polar Research Center, The Ohio State University, Scott Hall Room 108, 1090 Carmack Road, Columbus, OH 43210, USA;2. Geology Department, Union College, Schenectady, NY 12308, USA;3. Department of Geology and Planetary Science, University of Pittsburgh, 4107 O''Hara St., Pittsburgh, PA 15260, USA;4. Department of Geography, The Ohio State University, 1036 Derby Hall, Columbus, OH 43210, USA;1. Instituto Geofísico del Perú, Lima, Peru;2. Instituto Cientifico del Agua, Pontificia Universidad Católica del Perú, Lima, Peru;3. Instituto de Geociências, Universidade de São Paulo, São Paulo, Brazil;4. University at Albany, SUNY, Albany, NY, USA;5. Institute of Earth and Environmental Science, University of Potsdam, Potsdam, Germany;6. GFZ German Research Centre for Geosciences, Section 5.2 Climate Dynamics and Landscape Development, Potsdam, Germany;7. UMR LOCEAN (IRD/UPMC/CNRS/MNHN), Paris-Jussieu, France;8. Departamento de Geoquimica, Universidade Federal Fluminense, Niterói, RJ, Brazil;9. UMR GET (IRD) Géosciences Environnement Toulouse, CNRS-IRD-UPS, OMP, Toulouse, France;10. Instituto de Geociências, Universidade de Brasilia, Brasilia, DF, Brazil;11. Institute of Global Environmental Change, Xi''an Jiaotong University, Xi''an, China;12. Department of Geology and Geophysics, University of Minnesota, Twin Cities, Minneapolis, MN, USA;1. Free University of Bozen-Bolzano, Italy;2. Soil and Water Management & Crop Nutrition Laboratory, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Seibersdorf, Austria;3. Universidad de Cuenca, Ecuador;1. Department of Earth Sciences, Lindenwood University, 209 S. Kingshighway, St. Charles, MO 63301, USA;2. Department of Anthropology, Field Museum of Natural History, 1400 S. Lake Shore Drive, Chicago, IL 60605, USA;3. Department of Civil and Mechanical Engineering, University of Missouri Kansas City, 5110 Rockhill Road, Kansas City, MO 64110, USA |
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| Abstract: | The results of an integrated geoarchaeological and palaeoecological pilot study of a prehistoric agricultural terrace and nearby mire basin are presented. They reveal two stages of terrace construction for the cultivation of Zea mays during the Middle Horizon (615–695 AD) and late, Late Intermediate Period (1200–1400 AD). These stages were strongly associated with evidence for vegetation succession, destabilisation and erosion of the surrounding landscape, and changes in mire surface wetness. The reasons for agricultural terrace abandonment and/or reconstruction are uncertain, with only circumstantial evidence for climatically induced agricultural change. |
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