干旱区生态环境知识资源中心(Arid): Effect of water availability on induced cyanobacterial biocrust development

Arid

DOI	10.1016/j.catena.2020.104988
	Effect of water availability on induced cyanobacterial biocrust development
	Roman, J. R.; Roncero-Ramos, B.; Rodriguez-Caballero, E.; Chamizo, S.; Canton, Y.
通讯作者	Roman, JR (corresponding author), Univ Almeria, Agron Dept, Almeria 04120, Spain.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	197
英文摘要	Cyanobacteria inoculation has recently become an innovative biotechnological tool for restoring degraded arid soils. A major challenge for researchers, however, is the search for suitable species able to cope with water stress under field conditions. The aim of this study was to test the effect of water availability on induced biocrust growth in three different degraded soils from semiarid areas of Almeria (Spain). Three native N-fixing cyanobacterial strains, Nostoc commune, Scytonema hyalinum and Tolypothrix distorta, were inoculated on soil samples from the study areas, individually and as a consortium. Two different irrigation treatments simulating the water availability in the selected areas, in a dry year (180 mm/year) and a wet year (380 mm/year), were applied for three months under laboratory conditions. Cyanobacteria cover, chlorophyll a spectral absorption (Chla spectral absorption), soil organic carbon (SOC) and total exopolysaccharide (EPS) gains were measured as indicators of biocrust development. Cyanobacteria crust cover, SOC and EPS gains were higher in inoculated soils than in uninoculated soils. Even though the hydration regime had a generally significant effect on cyanobacteria cover, Chla spectral absorption and EPS, similar biocrust development and improvement in edaphic conditions were observed under both hydration regimes for all treatments. Of the candidate inoculants, N. commune showed remarkably higher performance under dry conditions than the rest, providing evidence of high potential for growing under water-limited conditions and being a good candidate inoculant for restoration of arid degraded areas.
英文关键词	Cyanobacteria inoculation Water availability Soil organic carbon Exopolysaccharides Biocrust restoration Semiarid
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000597208600031
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347788
作者单位	[Roman, J. R.; Rodriguez-Caballero, E.; Chamizo, S.; Canton, Y.] Univ Almeria, Agron Dept, Almeria 04120, Spain; [Roncero-Ramos, B.] Univ Liege, InBios Ctr Prot Engn, Liege, Belgium; [Rodriguez-Caballero, E.; Chamizo, S.; Canton, Y.] Univ Almeria, Ctr Invest Colecc Cient Univ Almeria CECOUAL, Almeria 04120, Spain
推荐引用方式 GB/T 7714	Roman, J. R.,Roncero-Ramos, B.,Rodriguez-Caballero, E.,et al. Effect of water availability on induced cyanobacterial biocrust development[J],2021,197.
APA	Roman, J. R.,Roncero-Ramos, B.,Rodriguez-Caballero, E.,Chamizo, S.,&Canton, Y..(2021).Effect of water availability on induced cyanobacterial biocrust development.CATENA,197.
MLA	Roman, J. R.,et al."Effect of water availability on induced cyanobacterial biocrust development".CATENA 197(2021).