摘要
为了降低莫高窟壁画由于赋存环境改变而引发病害深度恶化的风险,本文选取2011年8月-2012年8月间的监测数据,分析在突发性强降雨条件下,崖体同层、大小与形制相似的开放洞窟和不开放洞窟微环境的变化规律及差异性。研究表明,强降雨对窟内温度影响较小,但相对湿度出现了较大波动,具有时间滞后性。开放洞窟和不开放洞窟相比,相对湿度波动频率更明显,滞后时间均为10小时,要持续7小时才可达到另一种相对稳定的状态。本研究结果有助于洞窟管理者及调度人员合理安排洞窟排查时间及游客参观时间,并为决策者制订及时有效的防范措施提供理论依据。
In order to reduce the risk of severe deterioration in the Mogao Grottoes murals caused by unex- pected environmental changes, the monitoring data from August 2011 to August 2012 were selected to analyze the regular patterns and differences of the micro-environments of caves under sudden rainfall vis-a-vis open caves and closed caves of similar size and shape situated on the same level of the cliff. The research results show that rainfall has little influence on the temperature inside the caves, but the relative humidity fluctuates obviously with a time-lag effect. Comparing the open caves with closed caves, the fluctuation frequency of relative hu- midity seems to be more obvious with the same lag time of 10 hours. It has to last for seven hours before reach- ing another relatively stable state. Therefore, the results provide evidence for a reasonable cave checking and vis- iting schedule. Meanwhile, this paper provides a theoretical basis for decision-makers to establish ventive measures in a timely manner.
出处
《敦煌研究》
CSSCI
北大核心
2013年第1期120-124,共5页
Dunhuang Research
关键词
强降雨
温度
相对湿度
旅游开放
莫高窟
Heavy rainfall
Temperature
Relative humidity
Opening up of Tourism
Mogao caves
