TY - CHAP
T1 - Reconstruction of an 8,000-year environmental history on pollen records from lake buyan, central bali
AU - Li, Xun
AU - Yasuda, Yoshinori
AU - Fujiki, Toshiyuki
AU - Okamura, Makoto
AU - Matsuoka, Hiromi
AU - Yamada, Kazuyoshi
AU - Flenley, John
N1 - Funding Information:
Acknowledgements We thank Ir. I G.P. Wirawan and I Wayan Ardika for support on coring Lake Buyan. We thank Akira Hayashida and Yukie Hata for helping with the magnetic susceptibility measurements. We acknowledge the support of X. Sun and X. Xie for helping on the XRF core scan analysis at the Marine Geology and Geophysics Department of Tongji University. We thank Peter Mathews for discussion on the manuscript. This project is funded by a Science and Technology Research Partnership for Sustainable Development in Japan and the Japan Society for the Promotion of Science, and executed at the International Research Center for Japanese Studies.
Publisher Copyright:
© Springer Japan 2013.
PY - 2013
Y1 - 2013
N2 - New evidence from Lake Buyan, a 65-m-deep caldera lake in central Bali, presents an 8,000-year record of vegetation and climate change through palynological and physio-geochemical analyses. The distinct sediment phases associated with relative vegetation fluctuations and change of physio-geochemical index suggest that Bali might have experienced cycles of wet and dry climate change over 8,000 years. Vegetation composed of marshland/gap-colonizers, being coeval with the intensive process of erosion as indicated by an increased input of minerogenic material from the catchment, characterizes the periods when homogeneous lake mud sediments are formed, indicating relatively higher rainfall at period of 8.0–6.6 ka BP, 5.1–3.6 ka BP and 2.8 ka BP to present. At the time when laminated lake sediments commence, e.g., 6.6–5.1 ka BP and 3.6–2.8 ka BP, vegetation of a rather dry and fire-resistant character dominates, in concomitant with lower input of minerogenic material and suggests drier episodes. Regional comparison indicates that human-induced vegetation destruction is insignificant in Bali, except that cultivation activities might have been manifested in the recent 3,000 years, and the climatic variability observed from this core was probably El Niño Southern Oscillation (ENSO)-related.
AB - New evidence from Lake Buyan, a 65-m-deep caldera lake in central Bali, presents an 8,000-year record of vegetation and climate change through palynological and physio-geochemical analyses. The distinct sediment phases associated with relative vegetation fluctuations and change of physio-geochemical index suggest that Bali might have experienced cycles of wet and dry climate change over 8,000 years. Vegetation composed of marshland/gap-colonizers, being coeval with the intensive process of erosion as indicated by an increased input of minerogenic material from the catchment, characterizes the periods when homogeneous lake mud sediments are formed, indicating relatively higher rainfall at period of 8.0–6.6 ka BP, 5.1–3.6 ka BP and 2.8 ka BP to present. At the time when laminated lake sediments commence, e.g., 6.6–5.1 ka BP and 3.6–2.8 ka BP, vegetation of a rather dry and fire-resistant character dominates, in concomitant with lower input of minerogenic material and suggests drier episodes. Regional comparison indicates that human-induced vegetation destruction is insignificant in Bali, except that cultivation activities might have been manifested in the recent 3,000 years, and the climatic variability observed from this core was probably El Niño Southern Oscillation (ENSO)-related.
KW - Bali
KW - Environmental change
KW - Holocene
KW - Palynology
UR - http://www.scopus.com/inward/record.url?scp=84931577387&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84931577387&partnerID=8YFLogxK
U2 - 10.1007/978-4-431-54111-0_13
DO - 10.1007/978-4-431-54111-0_13
M3 - Chapter
AN - SCOPUS:84931577387
T3 - Advances in Asian Human-Environmental Research
SP - 407
EP - 426
BT - Advances in Asian Human-Environmental Research
PB - Springer International Publishing
ER -
