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首页> 外文期刊>Quaternary International >Late Holocene climatic impact on vegetation and human activity in central Japan, recorded in sediment at Arao-Minami archaeological site, northwestern Nobi Plain
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Late Holocene climatic impact on vegetation and human activity in central Japan, recorded in sediment at Arao-Minami archaeological site, northwestern Nobi Plain

机译：全新世晚气候对日本中部植被和人类活动的影响，记录在西北部Nobi平原Arao-Minami考古遗址的沉积物中

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摘要

Late Holocene histories of vegetation, human activity, and climate inland of the Nobi Plain, central Japan, were investigated using pollen, charcoal, and chronological (radiocarbon and pottery) analyses of the Arao-Minami archaeological sediment layers. This site was home to a large regional community from the Yayoi to Kofun periods. Agricultural production of buckwheat began before the Middle Yayoi (similar to 200 BC). Cultivated Poaceae increased in the warm period at ca. 2.2-1.7 cal ka BP (ca. 250 BC to ca. 250 AD), based on the pollen-based climate indices. This can be regarded as intensified wet rice agriculture occurring at this period because the archaeological examinations report the existence of paddy-field remains and rice phytoliths from the Late Yayoi to Early Kofun. This period approximately corresponds to the Roman Warm Period. Primary natural forests, such as Quercus subg. Lepidobalanus, Quercus subg. Cyclobalanopsis, Cupressaceae, and Cryptomeria, as well as cultivated Poaceae gradually decreased from ca. 1.7 to ca. 1.2 cal ka BP (ca. 250 AD to 750 AD), which corresponds to the Dark Age Cold Period. In contrast, an expansion of Pinus conifer forests and temporal rises of accumulation rates occurred in this period. Based on the evidences, we propose that the agriculture at this site temporarily changed to slash-and-burn cultivation at a nearby mountain, associated with the cold climate. In the warm period from ca. 1.2 cal ka BP (ca. 750 AD), cultivated Poaceae increased again, suggesting a return to wet rice agriculture around the site. In this paper, we conclude that ancient people who lived inland of the Nobi Plain adapted to global climate changes.
机译：日本中部Nobi平原的植被，人类活动和气候内陆的全新世晚期历史，通过对Arao-Minami考古沉积层的花粉，木炭和年代（放射性碳和陶器）分析进行了调查。从弥生时代到科峰时期，这里是一个大型区域性社区的所在地。荞麦的农业生产始于中弥生（大约公元前200年）之前。大约在温暖时期，栽培禾本科增加。 2.2-1.7 cal ka BP（约250 BC至约250 AD），基于基于花粉的气候指数。这可以看作是这一时期发生的集约化湿稻农业，因为考古调查报告说，从弥生后期到科峰初期，存在稻田残留物和水稻植石。这个时期大约对应于罗马温暖时期。原始天然林，如栎属subg。鳞翅目，栎亚目。青冈，柏科和柳杉以及栽培的禾本科植物从ca.逐渐减少。 1.7至1.2 cal ka BP（约250 AD至750 AD），对应于黑暗时代的寒冷时期。相反，在此期间，松树针叶林的扩张和蓄积率随时间上升。根据证据，我们建议该地点的农业暂时转变为与寒冷气候相关的附近山区的刀耕火种。在大约从温暖的时期。 1.2 cal ka BP（约公元750年），栽培禾本科再次增加，表明该地点已恢复湿稻农业。在本文中，我们得出的结论是，生活在诺比平原内陆的古代人适应了全球气候变化。

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