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dc.contributor.authorMachado, María José-
dc.contributor.authorPérez-González, Alfredo-
dc.contributor.authorBenito, Gerardo-
dc.identifier.citationQuateranary Research, 49, 312-321en_US
dc.description.abstractIn the Tigray region at the northern Ethiopian Highlands, paleoenvironmental reconstruction based on several infilled valley deposit sequences suggests that the past 4000 yr comprised three major wetter periods (ca. 4000–3500 yr B.P., 2500–1500 yr B.P., and 1000–960 yr B.P.), during which soils were formed, and two degradation episodes (ca. 3500–2500 yr B.P. and 1500–1000 yr B.P.), during which there was an increase of sediment yield from the slopes into the valleys. For the past 1000 yr, and in particular since the early 17th century, stratigraphic records together with historic chronicles suggest increasing aridity. Although difficulties arise in distinguishing between natural and human impacts, particularly in a region with a long established agricultural background, stratigraphical and proxy paleoclimatic data have indicated climate as the main controlling factor responsible for the environmental changes in the Tigray.en_US
dc.description.sponsorshipThis research was supported by the European Community STD3 Project Contract no. TS3-CT92-0049, as well as by the DGICYT (Dirección General de Investigación Científica y Te´cnica) project UE 94-0007, and by the Spanish Agency for International Co-operation (AECI/ICI) - Becas Mutisen_US
dc.format.extent579917 bytes-
dc.publisherUniversity of Washingtonen_US
dc.subjectPaleoenvironmental Changesen_US
dc.subjectNorthern Ethiopiaen_US
dc.titlePaleoenvironmental Changes during the Last 4000 yr in the Tigray, Northern Ethiopiaen_US
dc.description.peerreviewedPeer revieweden_US
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