干旱区生态环境知识资源中心(Arid): Increase of moisture content in Mogao Grottoes from artificial sources based on numerical simulations

Arid

DOI	10.1016/j.culher.2020.05.004
	Increase of moisture content in Mogao Grottoes from artificial sources based on numerical simulations
	Liu, Benli; Peng, Wanyue; Li, Haidong; Qu, Jianjun
通讯作者	Liu, BL
来源期刊	JOURNAL OF CULTURAL HERITAGE
ISSN	1296-2074
EISSN	1778-3674
出版年	2020
卷号	45 页码:135-141
英文摘要	Moisture is a key factor that can lead to deterioration of cultural heritages in arid regions. The Mogao Grottoes at the center of the ancient Silk Road suffer from moisture problem due to a multiple natural water sources, including the nearby river and flood, underground water migration, and rainfall. How-ever, contributions by artificial sources remain unclear, which range from irrigation to the sand control vegetation belts on the sand dunes, plus the green field in the tourist and administrative area. Here, we use numerical simulations to examine if and how much these artificial sources increase the moisture in and around the grottoes. A wide range of factors are considered including both liquid and vapor phases of water, both steady and transient scenarios, local climate, and inputs by different water/vapor values and wind speeds. The results show that the drip irrigation on the sand dunes has little influence, because of its far distance to the grottoes, limited irrigation water supply, and strong evaporation on the desert surface; however, a threating potential exists if the water amount becomes too large. The green field close to the east of the grottoes with flood irrigation can increase the soil water content of the grottoes rock by about 1.5%, and the water vapor concentration by about 45% under a gentle easterly wind. Rainfall also increases the water content, with fluctuation, on the cliff surface where the grottoes are located. To prevent the manmade moisture-related damages to the grottoes, it is necessary to control the size of the green field, to convert flood irrigation to drip irrigation, and to change the trees to desert shrubs. A shield system can be applied to the cliff surface to reduce the damage from rainfall. (c) 2020 Elsevier Masson SAS. All rights reserved.
英文关键词	Mogao Grottoes Moisture Dry land Irrigation Green field Numerical simulation
类型	Article
语种	英语
收录类别	SCI-E ; AHCI
WOS记录号	WOS:000584553600014
WOS关键词	DUNHUANG ; WATER ; PAINTINGS ; WALL
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/2XILL650/327247
作者单位	[Liu, Benli; Peng, Wanyue; Qu, Jianjun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Dunhuang Gobi Desert Res Stn, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; [Peng, Wanyue] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Li, Haidong] Minist Ecol & Environm Peoples Republ China, Nanjing Inst Environm Sci, Nanjing 210042, Peoples R China; [Qu, Jianjun] Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Yinchuan 750021, Ningxia, Peoples R China
推荐引用方式 GB/T 7714	Liu, Benli,Peng, Wanyue,Li, Haidong,et al. Increase of moisture content in Mogao Grottoes from artificial sources based on numerical simulations[J],2020,45:135-141.
APA	Liu, Benli,Peng, Wanyue,Li, Haidong,&Qu, Jianjun.(2020).Increase of moisture content in Mogao Grottoes from artificial sources based on numerical simulations.JOURNAL OF CULTURAL HERITAGE,45,135-141.
MLA	Liu, Benli,et al."Increase of moisture content in Mogao Grottoes from artificial sources based on numerical simulations".JOURNAL OF CULTURAL HERITAGE 45(2020):135-141.