成都天府广场出土石兽保存状况的统计学方法评估  

Evaluation of the Preservation Status of the Stone Beast Unearthed from Tianfu Square in Chengdu Based on Several Statistical Methods

作　　者：雷欣怡 杨盛 任舸 Lei Xinyi;Yang Sheng;Ren Ge

机构地区：[1]成都博物馆 [2]四川省文物考古研究院

出　　处：《四川文物》2024年第4期108-118,共11页Sichuan Cultural Relics

摘　　要：为评估成都天府广场出土石兽的保存状况,采用一种新的数据研究方法,利用统计理论处理数据,得到它们的分布特征、集中趋势和波动性,由此排查文物存在劣化风险的突变点位,实现预控文物病害的目的。在非线性拟合连续曲面上显示的数值趋势,并不代表数据系列,而是代表实际水平相对于平均水平的偏离。此方法可以快速找到文物表面性质异于其他部分的点位,这些点位可能是病害劣化高风险区域。精准评估文物保存状况,为下一步制订合适的保护方案做好准备。对测试值的离散程度、集中趋势和偏斜程度等分布特征的研究,除了对文物现状的了解和评估外,还能部分反映保存经历对文物的影响,可以继续尝试此类方法的可能性。The stone beast unearthed on the northeast side of Tianfu Square in Chengdu,Sichuan Province is carved out of a single piece of red sandstone,which has good overall homogeneity in the initial state.However,its cementitious material is prone to absorbing water and swelling,which can easily damage the rock structure of red sandstone in humid and freezing environments.Coupled with the later stratum burying and cement pollution disturbance,the material foundation of this artifact is sensitive and fragile.After being unearthed,the preservation environment of the artifact is completely different,therefore the material may undergo physical,chemical,and biological changes.Without pre-judgment and control of these changes,deterioration of the artifact is inevitable.In order to ensure its safe,stable,and long-term preservation,it is necessary to conduct in-depth research on its preservation status and investigate and control the potential risk points of disease.This article proposes a new data research method for evaluating the preservation condition of the stone beast unearthed from Chengdu Tianfu Square.Using statistical theory to process data,we obtain their distribution characteristics,central tendency,and volatility,and thus identify the sudden changes in the deterioration of cultural relics,achieving the purpose of pre-controlling risks.The numerical trend displayed on the non-linear fitting continuous surface does not represent the data series,but represents the deviation of the actual level relative to the average level.This method can quickly find points on the surface of cultural relics that are different from other parts,which may be areas with high risk of deterioration.Accurate assessment of the preservation condition of cultural relics helps to prepare for the next step of developing appropriate protection plans.The study of distribution characteristics such as dispersion,central tendency,and skewness of test values can not only provide an understanding and evaluation of the current condition of cultural reli

关 键 词：石兽 统计学方法 文物保护 数据分析 

分 类 号：C81[社会学—统计学] K879.3[历史地理—考古学及博物馆学]