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首页> 外文期刊>Catena: An Interdisciplinary Journal of Soil Science Hydrology-Geomorphology Focusing on Geoecology and Landscape Evolution >New geoarchaeological investigations of the valley systems in the Aksum area of northern Ethiopia. (Special Issue: Developments in international geoarchaeology)
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New geoarchaeological investigations of the valley systems in the Aksum area of northern Ethiopia. (Special Issue: Developments in international geoarchaeology)

机译:埃塞俄比亚北部阿克苏姆地区山谷系统的新地质考古研究。 (特刊:国际地球考古学的发展)

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摘要

Recent geoarchaeological investigations of the valley systems to the north and northeast of Aksum have revealed indications of a relatively recent alluvial sequence, probably within the last millennium. The implication is that both during and prior to the Aksumite Period, there was considerable landscape stability and resilience. This is reflected in the development of soils with vertic-like properties, which instead appear to be more like organic brown earths that gradually begin to aggrade through colluvial and alluvial additions. How much this is the result of sympathetic, long-term landscape management by the expanding population, and how much is related to underlying and longer-term climatic and vegetational trends is open to question at this stage. But in the last four to five centuries, the pace of alluvial aggradation appears to have increased markedly, and has deposited at least half of the sediment captured in the valley systems and lower slopes to the north of Aksum. This no doubt reflects a growing population and arable intensification.
机译:最近对阿克苏姆北部和东北部山谷系统的地质考古调查表明,冲积层序相对较新,这可能是在上个千年之内。这意味着在阿克苏姆特时期和之前,都具有相当大的景观稳定性和复原力。这在具有垂直状特性的土壤的发展中得到了反映,相反,它看起来更像是有机棕土,通过添加冲积土和冲积土逐渐开始凝结。在这个阶段,这有多少是由不断增加的人口进行的富有同情心的长期景观管理的结果,还有多少与潜在的长期气候和植被趋势有关。但是在过去的四到五个世纪中,冲积作用的速度似乎显着增加,并且已经沉积了至少一半在谷地系统和阿克苏姆北部低坡上捕获的沉积物。毫无疑问,这反映了人口的增长和耕地集约化。

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