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河南省安阳市内黄县三杨庄汉代遗址地层年代跨度从更新世晚期延续至今,多次的洪水泛滥和古土壤发育形成了三杨庄地层中洪积层与古土壤层的交替出现,距地表850~212cm处包含了5个洪积层和5个古土壤层。孢粉分析结果表明:三杨庄地区10200~7200cal.aB.P.期间孢粉浓度较低,气候较为暖湿;7200~4500cal.aB.P.期间孢粉浓度显著升高,进入全新世大暖期;4500~2000cal.aB.P.期间气候向降温变干的趋势发展,但仍比较温暖。洪积层和古土壤层的孢粉组合差异主要表现为洪积层中木本植物花粉(主要为松属)含量显著高于临近的古土壤层,而且人类活动强度越大,这种差距越明显。依据孢粉组合也能较好地划分本区地层中的洪积层和古土壤层。全新世早期该区可能已经有人类从事农业活动,之后虽然遭受多次洪水侵袭,但人类活动并未消失,大致在中全新世晚期之后(约6000cal.aB.P.),人类活动强度不断增强。
Anyang City, Anyang City, Henan Province, the three Yangzhuang Han Dynasty site stratigraphic span spanning from the late Pleistocene until now, many floods and paleozoic development of the formation of the formation of the three Yangzhuang stratigraphy alternating with the paleosol layer alternate, and the ancient soil layer spacing The surface at 850 ~ 212cm contains 5 alluvial layers and 5 paleosol layers. The results of sporopollen analysis showed that the sporopollen concentration was lower in 10200 ~ 7200cal.aB.P.and the climate was warmer and wetter in San Yangzhuang area. The sporopollen concentration in 7200 ~ 4500cal.aB.P. increased significantly during the period of Holocene Warm period; 4500 ~ 2000cal.aB.P.During the period the climate to cool down the trend of development, but still relatively warm. The differences of sporopollen assemblages in the alluvial and paleosol layers are mainly manifested by the significant increase in pollen (mainly Pinus) of the woody plants in the alluvium compared to the adjacent paleosol layer, and the greater the intensity of human activities, the greater the difference obvious. Based on the sporopollen assemblage, the alluvium and palaeosol in this area can also be well divided. In the early Holocene, mankind may have engaged in agricultural activities in the area, and then suffered numerous floods. However, human activities did not disappear. Generally, human activities intensified after the late Mid-Holocene (about 6000 cal.aB.P.) .