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| Titel |
Late Holocene environmental reconstructions and their implications on flood events, typhoon, and agricultural activities in NE Taiwan |
| VerfasserIn |
L.-C. Wang, H. Behling, T.-Q. Lee, H.-C. Li, C.-A. Huh, L.-J. Shiau, Y.-P. Chang |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 10, no. 5 ; Nr. 10, no. 5 (2014-10-22), S.1857-1869 |
| Datensatznummer |
250117060
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| Publikation (Nr.) |
 copernicus.org/cp-10-1857-2014.pdf |
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| Zusammenfassung |
| We reconstructed paleoenvironmental changes from a sediment archive of a
lake in the floodplain of the Ilan Plain of NE Taiwan on multi-decadal
resolution for the last ca. 1900 years. On the basis of pollen and diatom
records, we evaluated past floods, typhoons, and agricultural activities in
this area which are sensitive to the hydrological conditions in the western
Pacific. Considering the high sedimentation rates with low microfossil
preservations in our sedimentary record, multiple flood events were.
identified during the period AD 100–1400. During the Little Ice Age phase 1 (LIA 1 – AD 1400–1620), the abundant occurrences of wetland plant (Cyperaceae) and
diatom frustules imply less flood events under stable climate conditions in
this period. Between AD 500 and 700 and the Little Ice Age phase 2 (LIA 2 – AD 1630–1850), the frequent typhoons were inferred by coarse sediments and planktonic
diatoms, which represented more dynamical climate conditions than in the
LIA 1. By comparing our results with the reconstructed changes in tropical
hydrological conditions, we suggested that the local hydrology in NE Taiwan
is strongly influenced by typhoon-triggered heavy rainfalls, which could be
influenced by the variation of global temperature, the expansion of the
Pacific warm pool, and the intensification of El Niño–Southern Oscillation (ENSO) events. |
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