莫高窟第276窟可溶盐测定与环境监测分析

Soluble salt distribution and environmental monitoring of Cave 276 in the Mogao Grottoes

通过Merckoquant定性试纸法对莫高窟第276窟进行了可溶盐测定.结果表明,硫酸盐与氯化物是导致酥碱病变最重要的可溶盐,与已有研究成果符合较好, Merckoquant定性试纸法用于壁画现场调查与预分析方便可靠.对第276窟进行环境监测,比较窟门在开启和关闭状态下人为活动和降雨对窟内微环境的影响,发现窟门开启在一定程度上可以缓解人为活动对窟内相对湿度的提高.人为活动对窟内微环境的影响较降雨时间更短,波动也更大.

The paper presented a soluble salt test at Cave 276 of Mogao Grottoes by the Machckoquant semi-quantitative test strips. The results showed that crisp lesions were caused by sulfate and chloride,which was in good agreement with the existing research results;thus the Merckoquant semi-quantitative test strips method should be reliable and accurate. The environmental monitoring of the inside and outside of Cave 276 and the human activities and rainfall on the microenvironment in the cave were compared and analyzed. The results indicated that opening of the cave gate could alleviate the increase of cave relative humidity caused by human activities to some extent, and the effect of human activities on the microenvironment of the cave was more intense than that of the rain, and attention should be paid to the damage to the murals.