当前位置: X-MOL 学术Archaeol. Anthropol. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Evaluating erosional impacts on open-air archaeological sites along the Doring River, South Africa: methods and implications for research prioritization
Archaeological and Anthropological Sciences ( IF 2.1 ) Pub Date : 2020-04-24 , DOI: 10.1007/s12520-020-01061-x
Christopher J. H. Ames , Sherrie Chambers , Matthew Shaw , Natasha Phillips , Brian G. Jones , Alex Mackay

Open-air sites in arid and semi-arid landscapes are often subject to prolonged periods of exposure and episodes of erosion that can lead to the redistribution of artefacts and the loss of behaviorally significant spatial information. This is true along the Doring River, South Africa, where archaeologically rich sediment stacks with records exceeding 200,000 years are undergoing rapid erosion in response to modern climatic conditions and land use practices. This paper evaluates the impacts of past and future erosion on the disaggregation of artefacts from these open-air sites and the resulting loss of stratigraphic context and behaviorally significant spatial information. We use low elevation aerial images of the Klein Hoek 1 locality captured by an unmanned aerial vehicle (UAV) to develop a high-resolution local digital terrain model (DTM), which we use to model surface flow paths and quantify the potential for future sediment loss using the Revised Universal Soil Loss Equation (RUSLE). We compare the results of these analyses to the distribution of artefacts of different ages to assess artefact dispersion and to guide future research priorities at the locality. We find that some artefact clusters retain significant spatial integrity, whereas others are dispersed and likely out of primary context. The results also indicate that the geomorphic stability of a large part of Klein Hoek 1 has been compromised by erosion, with limited prospects for long-term survival given the present climate and land use practices.

中文翻译:

评估对南非多灵河沿岸露天考古遗址的侵蚀影响:研究优先次序的方法和意义

干旱和半干旱景观中的露天场所经常遭受长时间的暴露和侵蚀,这可能导致人工制品的重新分布和行为上重要的空间信息的丢失。南非多林河沿岸地区确实如此,由于现代气候条件和土地利用方式的影响,记录丰富的超过20万年的考古沉积物正经历着快速侵蚀。本文评估了过去和将来的侵蚀对这些露天地点的文物分解的影响,以及由此造成的地层环境和行为上重要的空间信息的损失。我们使用无人飞行器(UAV)拍摄的Klein Hoek 1地区的低海拔航空影像来开发高分辨率的本地数字地形模型(DTM),我们使用它来对地表径流路径进行建模,并使用经修订的通用土壤流失方程式(RUSLE)量化未来沉积物流失的潜力。我们将这些分析的结果与不同年龄的人工制品的分布进行比较,以评估人工制品的散布并指导当地的未来研究重点。我们发现,某些文物集群保留了显着的空间完整性,而另一些则分散且可能不在主要环境中。结果还表明,Klein Hoek 1大部分地区的地貌稳定性已受到侵蚀的损害,鉴于当前的气候和土地利用实践,长期生存的前景有限。我们将这些分析的结果与不同年龄的人工制品的分布进行比较,以评估人工制品的散布并指导当地的未来研究重点。我们发现,某些文物集群保留了显着的空间完整性,而另一些则分散且可能不在主要环境中。结果还表明,Klein Hoek 1大部分地区的地貌稳定性已受到侵蚀的损害,鉴于当前的气候和土地利用实践,长期生存的前景有限。我们将这些分析的结果与不同年龄的文物的分布进行比较,以评估文物散布并指导当地的未来研究重点。我们发现,一些文物集群保留了显着的空间完整性,而另一些则分散且很可能不在主要环境中。结果还表明,Klein Hoek 1大部分地区的地貌稳定性已受到侵蚀的损害,鉴于当前的气候和土地利用实践,长期生存的前景有限。
更新日期:2020-04-24
down
wechat
bug