【摘 要】
：
空气微生物是引发考古发掘现场微生物病害的主要因素,其直接威胁到出土文物的安全保存与合理防护.本研究利用Anderson FA-Ⅰ型六级筛孔撞击式空气微生物采样器在山东章丘东平陵考古发掘区第V9475探方区域采样,研究了采样点环境中可培养空气微生物浓度(Clone Forming Unit,CFU/m3)的日变化和时变化特征；同时结合现场环境监测数据,分析了空气微生物浓度与环境中温度、相对湿度、SO
【机 构】
：
国家古代壁画与土遗址保护工程技术研究中心,甘肃 敦煌 736200;甘肃省古代壁画与土遗址保护重点实验室,甘肃 敦煌 736200;古代壁画保护国家文物局重点科研基地,甘肃 敦煌 736200
【出 处】
：
第十六次全国环境微生物学学术研讨会
论文部分内容阅读
空气微生物是引发考古发掘现场微生物病害的主要因素,其直接威胁到出土文物的安全保存与合理防护.本研究利用Anderson FA-Ⅰ型六级筛孔撞击式空气微生物采样器在山东章丘东平陵考古发掘区第V9475探方区域采样,研究了采样点环境中可培养空气微生物浓度(Clone Forming Unit,CFU/m3)的日变化和时变化特征；同时结合现场环境监测数据,分析了空气微生物浓度与环境中温度、相对湿度、SO2浓度、CO2浓度、风速间相关性.结果表明：监测期内,考古现场环境中空气真菌浓度在624～1,403 CFU/m3间变化,与环境中相对湿度呈极显著正相关(r=0.643,p＜0.01)；空气细菌浓度在765～2,014 CFU/m3间变化,与环境相对湿度变化呈显著正相关(r=0.563,p＜0.05).同时,单日内不同时段空气真菌浓度在447～1,319 CFU/m3间变化,与环境相对湿度呈极显著正相关(r=0.936,p＜0.01),与环境温度呈极显著负相关(r=-0.856,p＜o.01)；空气细菌浓度在683～2,014 CFU/m3间变化,与环境相对湿度有 正相关性(r=0.628,p=0.07＞0.05),与环境温度呈显著负相关(r=-0.795,p＜0.05),并与环境中CO2浓度呈显著负相关(r=-0.673,p＜0.05).综上,监测期内考古现场空气微生物浓度相对较低,符合空气质量标准(GB/T 18883-2002)；空气微生物浓度具有日动态变化与时动态变化特征；相对湿度是影响考古发掘现场空气微生物浓度以及出土文物微生物病害发生的关键环境因子.本研究为考古现场微生物病害爆发的早期预测提供了重要依据,文物出土现场空气微生物浓度的变化可以作为考古环境质量控制的关键生态指示子.
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