Plant Microfossil Results from Old Kiyyangan Village: Looking for the Introduction and Expansion of Wet-field Rice (Oryza sativa) Cultivation in the Ifugao Rice Terraces, Philippine Cordilleras
Plant Microfossil Results from Old Kiyyangan Village: Looking for the Introduction and Expansion of Wet-field Rice (Oryza sativa) Cultivation in the Ifugao Rice Terraces, Philippine Cordilleras
Date
2018
Authors
Horrocks, Mark
Acabado, Stephen
Peterson, John
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Abstract
Pollen, phytolith, and starch analyses were carried out on 12 samples from two trenches in Old Kiyyangan Village, Ifugao Province, providing evidence for human activity from ca. 810–750 cal. b.p. Seed phytoliths and endosperm starch of cf. rice (Oryza sativa), coincident with aquatic Potamogeton pollen and sponge spicule remains, provide preliminary evidence for wet-field cultivation of rice at the site. The first rice remains appear ca. 675 cal. b.p. in terrace sediments. There is a marked increase in these remains after ca. 530–470 cal. b.p., supporting previous studies suggesting late expansion of the cultivation of wet-field rice in this area. The study represents initial, sediment-derived, ancient starch evidence for O. sativa, and initial, sediment-derived, ancient phytolith evidence for this species in the Philippines.
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Keywords
Philippines,
Ifugao Rice Terraces,
rice (Oryza sativa),
pollen,
phytoliths,
starch
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