干旱区生态环境知识资源中心(Arid): Crust cover and prior soil moisture status affect the response of soil microbial community and function to extreme rain events in an arid area

Arid

DOI	10.1016/j.ejsobi.2020.103243
	Crust cover and prior soil moisture status affect the response of soil microbial community and function to extreme rain events in an arid area
	Papatheodorou, E. M.; Papapostolou, A.; Monokrousos, N.; Jones, D. -W.; Scullion, J.; Stamou, G. P.
通讯作者	Papatheodorou, EM (corresponding author), Aristotle Univ Thessaloniki, Biol Sch, Dept Ecol, Thessaloniki, Greece.
来源期刊	EUROPEAN JOURNAL OF SOIL BIOLOGY
ISSN	1164-5563
EISSN	1778-3615
出版年	2020
卷号	101
英文摘要	Biological soil crusts (BSC) are an important multi-trophic component of arid ecosystems in the Mediterranean region, considered to have an important role in protecting the underlying soil from erosion and enhancing soil ecosystem functions. Using mesocosms in a 48 days glasshouse experiment, we investigated how previously hydrated (+W) and dried (-W) crust (+BSC) and uncrust (-BSC)-soil samples influenced microbial community structure, biomass and soil functionality of the underlying soils when exposed to two simulated extreme rain events. Community structure was assessed by phospholipid fatty acids analysis (PLFAs) and soil functionality by the activity of b-glucosidase, polyphenol oxidase, N-acetylglucosaminidase, acid phosphomoesterase and urease involve in C, P and N cycles. Crust increased the soil water content. In contrast, NH4 and NO3 were unaffected by the presence of the crust or its previous hydration status. N availability was affected by rain events; it declined from first to second event. Microbial biomasses were affected by the interaction crust x watering. Significant decline in biomasses was recorded in +BSC + W soils as a response to rain events. Little effects of treatments on soil enzymes were noticed; crust presence had a positive influence on the activity of phenol oxidase and a negative one on acid phosphomoesterase activity. The first rainfall had the greatest impact on microbial community structure, with communities in the previously hydrated crust affected most. These effects were less pronounced for the second rain event possibly due to microbial acclimation. Responses in enzyme profiles were consistent with those of communities, but delayed, with more marked responses following the second rainfall. We concluded that the effect of this lichen crust from the Mediterranean area on the response of soil microbial communities and enzymes to rainfall events depended strongly on the prior hydration status of the crust-soil complex.
英文关键词	Mediterranean ecosystem Climate change Community resistance Lichen crust Cladonia rangiformis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000600363100007
WOS关键词	ENZYME-ACTIVITIES ; PRECIPITATION ; TEMPERATURE ; BACTERIAL ; DESERT ; CARBON
WOS类目	Ecology ; 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/2XILL650/348842
作者单位	[Papatheodorou, E. M.; Papapostolou, A.; Stamou, G. P.] Aristotle Univ Thessaloniki, Sch Biol, Dept Ecol, Thessaloniki, Greece; [Papatheodorou, E. M.] Int Hellen Univ, Sch Econ Business Adm & Legal Studies, Thessaloniki, Greece; [Monokrousos, N.] Int Hellen Univ, Sch Sci & Technol, Thessaloniki, Greece; [Jones, D. -W.; Scullion, J.] Aberystwyth Univ, Inst Biol Environm & Rural Sci, Sch Econ Business Adm & Legal Studies, Ceredigion, Wales
推荐引用方式 GB/T 7714	Papatheodorou, E. M.,Papapostolou, A.,Monokrousos, N.,et al. Crust cover and prior soil moisture status affect the response of soil microbial community and function to extreme rain events in an arid area[J],2020,101.
APA	Papatheodorou, E. M.,Papapostolou, A.,Monokrousos, N.,Jones, D. -W.,Scullion, J.,&Stamou, G. P..(2020).Crust cover and prior soil moisture status affect the response of soil microbial community and function to extreme rain events in an arid area.EUROPEAN JOURNAL OF SOIL BIOLOGY,101.
MLA	Papatheodorou, E. M.,et al."Crust cover and prior soil moisture status affect the response of soil microbial community and function to extreme rain events in an arid area".EUROPEAN JOURNAL OF SOIL BIOLOGY 101(2020).