Holocene Palaeoenvironmental Reconstruction Based on Microfossil Analysis of a Lake Sediment Core, Nong Han Kumphawapi, Udon Thani, Northeast Thailand

Pollen, phytolith, and charcoal analyses are presented for a Holocene lake sediment core taken from Nong Han (Lake) Kumphawapi, Udon Thani, Northeast Thailand. Major changes appear in the record at approximately 6500 calibrated years B.P. with the establishment of permanent swamp or lake conditions...

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Bibliographic Details
Main Authors: PENNY, DAN, GRINDROD, JOHN, BISHOP, PAUL
Format: Conference Proceeding
Language:English
Subjects:
Charcoal
Deciduous forests
Environmental studies
Geology and climatology
Methodology and general studies
Microfossils
Palynology
Phytoliths
Pollen
Prehistory and protohistory
Rice
Swamps
Taxa
Vegetation
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Summary:Pollen, phytolith, and charcoal analyses are presented for a Holocene lake sediment core taken from Nong Han (Lake) Kumphawapi, Udon Thani, Northeast Thailand. Major changes appear in the record at approximately 6500 calibrated years B.P. with the establishment of permanent swamp or lake conditions at the core site and a decline in regional arboreal taxa. These changes are difficult to explain in simple climatic terms and are inconsistent with other climatic reconstructions for the region. A coincident increase in disturbance indicators in the microfossil record may reflect human activities, particularly changes to dryland vegetation through the use of fire. The technique appears to be insensitive to the development of intensive wet-rice agriculture, which almost certainly occurred during the period represented by the microfossil record. Despite this, the results indicate good potential for further detailed microfossil analyses at Nong Han Kumphawapi.
ISSN:0066-8435
1535-8283