Holocene history of intentional fires and grassland development on the Soni Plateau, Central Japan, reconstructed from phytolith and macroscopic charcoal records within cumulative soils, combined with paleoenvironmental data from mire sediments

Autor:	Jun Inoue, Tatsuichiro Kawano, Ryota Okunaka
Rok vydání:	2011
Předmět:	Archeology Global and Planetary Change geography Plateau geography.geographical_feature_category Ecology Paleontology Sediment Wetland Grassland Phytolith visual_art Mire visual_art.visual_art_medium Physical geography Charcoal Holocene Geology Earth-Surface Processes
Zdroj:	The Holocene. 22:793-800
ISSN:	1477-0911 0959-6836
DOI:	10.1177/0959683611430409
Popis:	Phytolith and macroscopic charcoal in cumulative soils on the Soni Plateau, Central Japan, were evaluated to clarify the Holocene history of intentional fires and grassland development, and to compare the findings with those derived from pollen and charcoal records in sediments taken from a nearby mire in the previous study. Prior to ~1500 cal. BP, Bambusoid short-cell phytoliths and Pleioblastus-type and Bambusoideae-type bulliform cell phytoliths were abundant with scarce charcoal particles (3). In contrast, since ~1500 cal. BP Andropogoneae-type bulliform cell phytoliths and Bilobate short-cell phytoliths were dominant with abundant charcoal particles (>1000 particles/cm3). Based on correlating these records with pollen and charcoal records in mire sediments, prior to ~1500 cal. BP, dwarf bamboo flourished on the forest floor under largely fire-free conditions, whereas since ~1500 cal. BP, grassland dominated by Japanese pampas grass has been sustained by periodic intentional burning that has continued until the present day.
Databáze:	OpenAIRE
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