干旱区生态环境知识资源中心(Arid): Natural Deterioration Processes of Salix psammophila Sand Barriers in Atmospheric Exposure Section

Arid

DOI	10.3389/fpls.2022.850391
	Natural Deterioration Processes of Salix psammophila Sand Barriers in Atmospheric Exposure Section
	Wang, Ruidong; Dang, Xiaohong; Gao, Yong; Yang, Xia; Liang, Yumei; Zhao, Chen; Duan, Xiaoting
通讯作者	Dang, XH
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2022
卷号	13
英文摘要	The atmospheric conditions of desert environments are important for the protection of Salix psammophila Sand Barrier, and these conditions can affect and change the structure and performance of the sand barrier, causing them to lose their wind proofing and sand fixing benefits. In this study, we have first examined the key environmental factors that affect the exposure of S. psammophila sand barrier. Then, we assessed how key factors in the desert atmospheric environment affect structural aging and performance. The relative crystallinity and chemical composition changes in the sand barrier were measured by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS), and the main degradation factors and processes were discussed. The results showed that the degradation degree of the exposed S. psammophila sand barrier was mainly affected by moisture and ultraviolet radiation. Lignin was the main component and the source of photodegradation and photodiscoloration observed in the sand barrier. However, other polysaccharides, such as cellulose and hemicellulose, were less affected by photodegradation. The stress generated by alternating desorption-absorption was the main cause of the expansion and contraction, deformation, cracking, and warping observed in S. psammophila sand barrier. We also found a series of irreversible changes and losses that occurred, which affected the natural material properties of S. psammophila sand barrier exposed to atmospheric conditions for several years. Exposure times between 5 and 7 years were the most important turning point in time for determining the deterioration of the S. psammophila sand barrier. Our results highlighted the importance of the interactions between atmospheric factors and the exposed atmospheric sections of the S. psammophila sand barrier from the perspective of environmental effects. However, the exact mechanisms of the sand barrier deterioration still need further investigation. Nevertheless, our overall findings advanced the current understanding of the environmental effects of S. psammophila sand barrier for ecological restoration and desertification reversal, especially in stressful desert environments.
英文关键词	desertification control soil and water conservation sand barrier natural degradation atmospheric exposure
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000791945400001
WOS关键词	WOOD ; FTIR ; SPECTROSCOPY ; COLOR
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392850
推荐引用方式 GB/T 7714	Wang, Ruidong,Dang, Xiaohong,Gao, Yong,et al. Natural Deterioration Processes of Salix psammophila Sand Barriers in Atmospheric Exposure Section[J],2022,13.
APA	Wang, Ruidong.,Dang, Xiaohong.,Gao, Yong.,Yang, Xia.,Liang, Yumei.,...&Duan, Xiaoting.(2022).Natural Deterioration Processes of Salix psammophila Sand Barriers in Atmospheric Exposure Section.FRONTIERS IN PLANT SCIENCE,13.
MLA	Wang, Ruidong,et al."Natural Deterioration Processes of Salix psammophila Sand Barriers in Atmospheric Exposure Section".FRONTIERS IN PLANT SCIENCE 13(2022).