Experimental investigation on the correlation between rainfall infiltration and the deterioration of wall paintings at Mogao Grottoes, China

Liu, Hongli; Wang, Xudong; Guo, Qinglin; Zhang, Mingquan; Wang, Yan‐Wu

doi:10.1007/s10064-019-01645-5

Cited by 15 publications

(5 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The climate is extremely arid, with average annual precipitation of 39 mm, of which more than 59% is concentrated mainly from June to August. The annual relative humidity is 31%, the annual average temperature is 11.2℃, and the annual evaporation is about 4348 mm (Liu et al, 2020).…”

Section: Study Areamentioning

confidence: 99%

Concentrations, sources, and influential factors of water-soluble ions of atmospheric particles in Dunhuang Mogao Grottoes, a world heritage site in China

Yang

et al. 2022

J. Arid Land

View full text Add to dashboard Cite

Atmospheric particle pollution is one of the major factors leading to degradation of ancient wall paintings, particularly heritage sites in arid and semi-arid regions. However, current systematic research on the changes, sources, and influential factors of atmospheric particulate matter and its water-soluble ion concentrations is not sufficient. Thus, the major water-soluble ion concentrations, sources, and influential factors of atmospheric particles PM2.5 and PM10 (particulate matter with an aerodynamic equivalent diameter ≤2.5 and 10.0 μm, respectively, in ambient air) were collected from Cave 16 and its ambient exterior environment in the Dunhuang Mogao Grottoes, China, between April 2015 and March 2016. Results showed that the concentrations of PM2.5 and PM10 inside and outside the cave were the highest in March 2016 and the lowest in December 2015. The higher particle concentration from March to May was related to the frequent occurrence of sand and dust events, and the lower particle concentration from June to September was associated with good diffusion conditions, increased precipitation, and an established cave shelterbelt. The concentration of particulate matter inside the cave was affected by the concentration of particles in the air outside the cave. Ca 2+ , NH + 4 , Na + , Cl -, and SO 2-4 were the main components of the total ions of PM2.5 and PM10 both inside and outside the cave. The total ions inside the cave were frequently affected by the disturbance of tourists' activities during the peak tourist season from May to August. Under the influence of dust, the total concentrations of Cl -, SO 2-4 , Na + , NH + 4 , and Ca 2+ in particles of different sizes inside and outside the cave increased, and the concentrations of Cl -, SO 2-4 , Na + , and Ca 2+ decreased during precipitation period. Backward air mass trajectory analysis suggested that the pollutants were mainly from Xinjiang, China. The pollutant sources of air particulates are straw burning, secondary pollution sources, soil dust, dry spring rivers, and tourist activities.

show abstract

Section: Study Areamentioning

confidence: 99%

Concentrations, sources, and influential factors of water-soluble ions of atmospheric particles in Dunhuang Mogao Grottoes, a world heritage site in China

Yang

et al. 2022

J. Arid Land

View full text Add to dashboard Cite

show abstract

“…Because of the poor thermal conductivity of the surrounding rock, the temperature inside the caves is relatively stable throughout the year. On sunny days in summer, the cave temperature is lower than the atmospheric environment [15,16] , and on rainy days, the atmospheric temperature decreases signi cantly and is even lower than the cave environment at certain times. Due to the reduced temperature difference between the inside and outside of the cave, the cave temperature remained largely unchanged despite the air ow exchange.…”

Section: Difference Analysis Of Microclimate Change In Different Type...mentioning

confidence: 99%

“…The occurrence and development of mural salt damage is a slow and cumulative process, which is highly susceptible to activation due to environmental changes [19,20] . Rainfall leads to increasing and highly uctuating humidity in caves, and high humidity provides su cient moisture for the deliquescence of soluble salts [15] , while humidity uctuations cause repeated deliquescence-recrystallization or deliquescence-hydration changes of labile salts, which triggers salt diseases on murals in turn [5] . To prevent the damaging effects of rainfall on murals, it is crucial to develop reasonable risk prevention measures.…”

Section: Risk Assessment Of Mural Deterioration In Rainy Weathermentioning

confidence: 99%

Rainfall influence on the microclimate of caves and the risk assessment of mural deterioration in Dunhuang Mogao Grottoes, China

Liu

Zhang

Tian

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

The Dunhuang Mogao Grottoes are famous for the exquisite murals and statues. The changes in temperature and humidity caused by rainfall easily trigger the salt diseases of murals. In order to prevent the further deterioration of murals, the influence of rainfall on the thermal and moisture environment of caves was analyzed through the environmental monitoring test. The results show that the temperature of the caves is basically unchanged, and the humidity changes in three stages of rising, maintaining and falling. The relative humidity and duration of high humidity show as of semi-closed cave > closed cave, small cave > large cave. The optimal time node of environment control of cave is aatm=acave, and the control condition is RH < 62%. The caves with small volume and large degree of connectivity to atmospheric environment are vulnerable objects. The disaster-deducing factor of mural deterioration is the accumulated rainfall in the next week, and the rainfall intensity is a reasonable parameter in risk monitoring and warning. The results have great significance for the risk prevention of mural deterioration and environment control of caves in Mogao grottoes.

show abstract

“…Grottoes are ancient artworks created by excavating rocks, and they possess significant historical, cultural, artistic and scientific value [1]. However, grotto cultural relics are susceptible to various diseases caused by long-term natural weathering and human activities.…”

Section: Introductionmentioning

confidence: 99%

Application of Ground-Penetrating Radar with the Logging Data Constraint in the Detection of Fractured Rock Mass in Dazu Rock Carvings, Chongqing, China

Yuan,

Liu,

Zhao

et al. 2023

Remote Sensing

View full text Add to dashboard Cite

Geologic interpretation results from conventional ground-penetrating radar (GPR) detection methods tend to have a certain degree of uncertainty. In order to improve the reliability of ground-penetrating radars in the detection of rock mass fissures in grottoes, this study proposes a ground-penetrating radar detection method with the logging data constraint, which is applied to detect the fractured rock mass in the Baodingshan Scenic Area of Dazu Rock Carvings, Chongqing, China. First, conventional logging and borehole televiewer data were compared and verified, yielding detailed lithological and wellbore fissure information. Next, electromagnetic wave velocity was calibrated using GPR profile and the depth of the stratigraphic interface determined by borehole data. Utilizing this calibrated velocity, we are able to accurately calculate the depth values of anomalies in GPR interpretation profiles. Subsequently, we compared the preliminary GPR interpretation profile with the borehole televiewer images. After eliminating false anomalies caused by interference, we obtained more reliable location information for detection targets such as fissures, fracture zones, and weak interlayers. The results of fissure detection in the Dazu Rock Carvings indicate that the detection results of ground-penetrating radar are verified and supplemented under the constraints of stratigraphic and well-wall fissure information obtained by logging. This effectively mitigates the influence of multiplicity and false anomalies of GPR detection on interpretation results. GPR with the logging data constraint enhances the accuracy of the fissure detection results, providing novel technical means for the protection and restoration of grotto relics.

show abstract

Experimental investigation on the correlation between rainfall infiltration and the deterioration of wall paintings at Mogao Grottoes, China

Cited by 15 publications

References 13 publications

Concentrations, sources, and influential factors of water-soluble ions of atmospheric particles in Dunhuang Mogao Grottoes, a world heritage site in China

Concentrations, sources, and influential factors of water-soluble ions of atmospheric particles in Dunhuang Mogao Grottoes, a world heritage site in China

Rainfall influence on the microclimate of caves and the risk assessment of mural deterioration in Dunhuang Mogao Grottoes, China

Application of Ground-Penetrating Radar with the Logging Data Constraint in the Detection of Fractured Rock Mass in Dazu Rock Carvings, Chongqing, China

Contact Info

Product

Resources

About