干旱区生态环境知识资源中心(Arid): Quantitative analysis on the impact factors of salt weathering for sandstone grottoes along Silk Road, China

Arid

DOI	10.1016/j.culher.2024.04.011
	Quantitative analysis on the impact factors of salt weathering for sandstone grottoes along Silk Road, China
	Shen, Yunxia; Liang, Chuxin; Steiger, Michael; Cao, Zhangzhe; Sun, Manli
通讯作者	Sun, ML
来源期刊	JOURNAL OF CULTURAL HERITAGE
ISSN	1296-2074
EISSN	1778-3674
出版年	2024
卷号	67 页码:522-533
英文摘要	A large number of exquisite sandstone grottoes remaining along the Silk Road in Northwest China suffer from severe salt damage due to the vulnerability of the sandstone materials used and long-term continuous fluctuation of environmental conditions. Exploring the mechanism of salt weathering is crucial for the conservation of these grottoes. This study aims to quantitatively analyze the damage potential and the main impact factors of salt weathering in 14 grottoes along the Silk Road that were selected and investigated by using visual evaluation, salt analysis including thermodynamic modeling, and a comprehensive evaluation based on the entropy weight method. The results indicate that salt weathering of the sandstone grottoes is primarily characterized by efflorescences, peeling, and powdering. The overall salt content within the weathering layer typically exceeds a threshold of 1 %. Within the semi-arid area, the humidity fluctuations critical for significant volume changes in crystalline salts fall within the ranges 46-76 % and 16-30 %. In the semi-humid area, these ranges are 58-90 %, 42-50 %, and 16-30 %. A total of 14 salts can precipitate in the study area with NaCl, NaNO3 , KNO3 , Na2SO4xH(2)O and several double salts occuring most frequently. Generally, the damage degree of sandstones grottoes in the semi-humid area is more serious than that in the semi-arid area. Through a comparison of visual inspection and more comprehensive quantitative evaluation, it has been confirmed that the salt damage is primarily influenced by the factors salt content, salt type, and environmental conditions. Furthermore, the order of influence for each factor on salt weathering can be ranked as follows: salt content > salt type > environmental conditions. This study quantitatively reveals the impact of various factors on salt weathering and proposes a method to evaluate the salt damage potential, which is of great significance for the preventive conservation of sandstone grottoes. (c) 2024 The Authors. Published by Elsevier Masson SAS on behalf of Consiglio Nazionale delle Ricerche (CNR).
英文关键词	Sandstone grotto Salt weathering Thermodynamic behavior Quantitative analysis
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E ; AHCI
WOS记录号	WOS:001241416900001
WOS关键词	CRYSTALLIZATION BEHAVIOR ; ENVIRONMENTAL-CONDITIONS ; POROUS MATERIALS ; CLEEVE-ABBEY ; DAMAGE ; GENERATION ; TRANSPORT ; MIXTURES ; HERITAGE ; ENGLAND
WOS类目	Archaeology ; Art ; Chemistry, Analytical ; Geosciences, Multidisciplinary ; Materials Science, Multidisciplinary ; Spectroscopy
WOS研究方向	Archaeology ; Art ; Chemistry ; Geology ; Materials Science ; Spectroscopy
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404428
推荐引用方式 GB/T 7714	Shen, Yunxia,Liang, Chuxin,Steiger, Michael,et al. Quantitative analysis on the impact factors of salt weathering for sandstone grottoes along Silk Road, China[J],2024,67:522-533.
APA	Shen, Yunxia,Liang, Chuxin,Steiger, Michael,Cao, Zhangzhe,&Sun, Manli.(2024).Quantitative analysis on the impact factors of salt weathering for sandstone grottoes along Silk Road, China.JOURNAL OF CULTURAL HERITAGE,67,522-533.
MLA	Shen, Yunxia,et al."Quantitative analysis on the impact factors of salt weathering for sandstone grottoes along Silk Road, China".JOURNAL OF CULTURAL HERITAGE 67(2024):522-533.