北京路县故城城郊遗址F13土壤元素研究

Study on Soil Elements of F13 in the Suburb of Heritage Site at the Ancient Government Seat of Luxian County,Beijing

对北京路县故城城郊遗址的未知功能区F13内部及其周围土壤进行全磷测定和土壤元素分析,双尾检验显示F13内、外土壤元素中P、Cu、MgO、Sr、CaO、Zn、Fe_(2)O_(3)和MnO的含量存在显著差异,其中P、Cu、MgO、Sr、CaO、Zn和Fe_(2)O_(3)在F13内部的土壤中含量相对较高。结合综合聚类分析和主成分分析发现,在这些差异元素中,Cu、MgO、Sr、CaO、Zn和P具有共同或相似的来源和主导因素,Fe_(2)O_(3)与其他6种富集元素来源不同,推测Fe2O3的富集与人类清理F13时所使用的铁质工具相关;MnO在F13内部土壤中含量较低,在周围土壤中含量较高,应与同时期路县故城城郊地区的手工业活动有关。综合未知功能区的形制判断,F13为北朝时期手工业者搭建的简易公共厕所。

Phosphorus content and soil elements analysis were carried out on the unknown functional area F13 and its surrounding soil in the suburb of heritage site at the ancient government seat of Luxian County.The two-tailed test showed significant differences in the contents of soil elements P,Cu,MgO,Sr,CaO,Zn,Fe_(2)O_(3),and MnO in the soil inside and outside F13,with higher content of P,Cu,MgO,Sr,CaO,Zn and Fe_(2)O_(3) in the soil inside F13.Combined with comprehensive cluster analysis and principal component analysis,it was found that Cu,MgO,Sr,CaO,Zn and P had common or similar sources and dominant factors among these different elements.The enrichment of Fe_(2)O_(3)was different from that of the other six enriched elements,and it was speculated that the enrichment of Fe_(2)O_(3)was related to the iron tools used by humans to clean F13.The content of MnO in the soil inside F13 was lower,while it was higher in the surrounding soil,which was related to handicraft activities in the Suburb of heritage site at the ancient government seat of Luxian during the same period.Judging from the shape of the unknown functional area,F13 is a simple public toilet built for artisans during theNorthern Dynasty.