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Table 4 Weathering deterioration data

From: A quantitative evaluation based on an analytic hierarchy process for the deterioration degree of the Guangyuan Thousand-Buddha grotto from the Tang Dynasty in Sichuan, China

No Name Weathering deterioration
Rock powdering weathering (m2) Deep loss (m2) Salt crystallization (m2) Pigment layer peeled off (m2) Paint layer craquelure (m2)
86 Amitabha grotto 7.67 0.01 0.60 2.76 1.59
211 Suting grotto 0.15 0.00 0.09 0.13 0.00
213 / 2.95 0.03 0.13 1.14 0.31
214 Vairocana Buddha cave 0.10 0.07 0.00 0.36 0.48
400 Central Stupa grotto 15.92 0.58 5.91 0.26 0.06
512 Dayun old cave 19.16 0.06 4.98 1.92 0.01
513 Weikang grotto 4.49 0.02 0.00 2.24 0.00
535 Lotus cave 12.47 0.01 1.71 5.25 0.09
689 Thousand-Buddha cave 7.62 0.01 0.86 4.27 0.00
805 Benefactor’s grotto 18.67 0.00 0.72 0.12 3.27
806 Shakyamuni and Prabhutaratna grotto 17.69 0.00 0.14 5.27 0.78
No Name Weathering deterioration
Scratch or graffiti (m) Improper repairing (m2) Surface pollution (m2) Microorganism pollution (m2)
86 Amitabha grotto 0.00 0.10 5.79 0.01
211 Suting grotto 0.00 0.00 1.48 0.00
213 / 0.00 0.63 1.46 0.00
214 Vairocana Buddha cave 5.90 0.12 0.00 0.01
400 Central Stupa grotto 36.94 0.07 2.61 1.35
512 Dayun old cave 15.15 3.00 10.86 0.37
513 Weikang grotto 21.07 0.05 1.27 0.05
535 Lotus cave 12.83 0.84 8.60 5.70
689 Thousand-Buddha cave 88.53 0.09 3.18 0.01
805 Benefactor’s grotto 58.17 0.01 3.57 1.86
806 Shakyamuni and Prabhutaratna grotto 70.65 0.05 3.01 1.70