干旱区生态环境知识资源中心(Arid): Rapid artificial biocrust development by cyanobacterial inoculation and clay amendment

Arid

DOI	10.1002/ldr.4716
	Rapid artificial biocrust development by cyanobacterial inoculation and clay amendment
	Keqiang, Zhou; Zijia, Zhang; Cui, Zhang; Ling, Xia; Delong, Meng; Li, Wu; Shaoxian, Song; Sancheze, Rosa Maria Torres; Farias, Maria E.
通讯作者	Ling, X
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2023
卷号	34 期号:12 页码:3728-3743
英文摘要	The establishment of biological soil crusts is widely perceived as a main strategy to improve the ecological environment in arid and semi-arid regions. However, artificial biocrusts fail to withstand environmental stresses when using traditional methods for initial establishment. Hence, in this study, kaolin, a common clay mineral, was introduced as a biocrust stabilizer by mixing at different mass ratios with Microcoleus steenstrupii for sand inoculation. The results showed that the addition of kaolin exhibited a significantly positive effect on promoting biocrust formation and accelerating biocrust development. Moreover, the artificial biocrust from 1:500 (algae: kaolin) inoculant achieved the best performance with coverage of 98%, and top layer thickness of 5.62 mm after 86 days of incubation. The highest contents of chlorophyll a, exopolysaccharides, and soluble protein were also observed in 1:500 mass ratio of algae: kaolin throughout the biocrust development process. As for the water retention performance, the results of contact angle, water drop penetration time (WDPT), and repellency index (RI) illustrated that biocrust improved water utilization in kaolin-treated groups by delaying the time of water infiltration, especially in 1:500 group. After 86 days post inoculation, a series of common bacteria appeared in the biocrusts such as actinobacteria and acidobacteria, and decomposed metabolites from cyanobacteria as an energy source. This study gains new insights into clay minerals on biocrust development and puts forward a new approach for rapid artificial biocrust establishment to reverse desertification.
英文关键词	biocrust clay mineral cyanobacteria hydrology inoculation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000979828200001
WOS关键词	BIOLOGICAL SOIL CRUSTS ; PHYSIOLOGICAL-CHARACTERISTICS ; KAOLIN ; DROUGHT ; DESERT ; SUCCESSION ; TOLERANCE ; BENTONITE ; ALLEVIATE ; STRESSES
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397750
推荐引用方式 GB/T 7714	Keqiang, Zhou,Zijia, Zhang,Cui, Zhang,et al. Rapid artificial biocrust development by cyanobacterial inoculation and clay amendment[J],2023,34(12):3728-3743.
APA	Keqiang, Zhou.,Zijia, Zhang.,Cui, Zhang.,Ling, Xia.,Delong, Meng.,...&Farias, Maria E..(2023).Rapid artificial biocrust development by cyanobacterial inoculation and clay amendment.LAND DEGRADATION & DEVELOPMENT,34(12),3728-3743.
MLA	Keqiang, Zhou,et al."Rapid artificial biocrust development by cyanobacterial inoculation and clay amendment".LAND DEGRADATION & DEVELOPMENT 34.12(2023):3728-3743.