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Reconstruction of humidity in a dry forest and a humid forest in southern Ecuador
Presented by Ms. Darwin Alexander PUCHA COFREP on 17 May 2013 from 08:50 to 09:10
Type: Oral Presentation
Session: Tropical Dendrochronology
Track: Tropical dendrochronology
Dendrochronological studies are an important tool to provide important paleoclimatic data. In the tropics, however, dendroecology is still a rather young science and little is known about how climate affects the development of these sensitive ecosystems. We present the first tree-ring chronology of a dry forest and a humid forest in southern Ecuador and compare it with the ENSO index. Therefore, we combine measurements of individual annual growth rings with the variations of stable carbon isotope (13C and 18O) variations to obtain information about how different climatic conditions influence the short-term and the long-term growth of the trees. A reconstruction of the variations of humidity conditions during the past decades was prepared using stable carbon isotopes and ring width measurements. Consequently, we verify our hypothesis that the stable carbon isotopes in the wood reflect variations of moisture variability during the past decades.
Room: Salon B
- Ms. Darwin Alexander PUCHA COFREP University of Erlangen-Nuremberg, Institute of Geography, Erlangen, Germany and National University of Loja, School of Forestry, Loja, Ecuador
- Prof. Achim BRäUNING University of Erlangen-Nuremberg, Institute of Geography, Erlangen, Germany.
- Carlos VALAREZO MANOSALVAS National University of Loja