干旱区生态环境知识资源中心(Arid): Microbial and geo-archaeological records reveal the growth rate, origin and composition of desert rock surface communities

Arid

DOI	10.5194/bg-18-3331-2021
	Microbial and geo-archaeological records reveal the growth rate, origin and composition of desert rock surface communities
	Wieler, Nimrod; Gini, Tali Erickson; Gillor, Osnat; Angel, Roey
通讯作者	Gillor, O (corresponding author), Ben Gurion Univ Negev, Zuckerberg Inst Water Res, Jacob Blaustein Inst Desert Res, Sede Boqer Campus, IL-8499000 Beer Sheva, Israel. ; Angel, R (corresponding author), Biol Ctr CAS, Soil & Water Res Infrastruct, Ceske Budejovice, Czech Republic. ; Angel, R (corresponding author), Biol Ctr CAS, Inst Soil Biol, Ceske Budejovice, Czech Republic.
来源期刊	BIOGEOSCIENCES
ISSN	1726-4170
EISSN	1726-4189
出版年	2021
卷号	18 期号:11 页码:3331-3342
英文摘要	Biological rock crusts (BRCs) are ubiquitous features of rock surfaces in drylands composed of slow-growing microbial assemblages. BRC presence is often correlated with rock weathering, soiling effect or mitigating geomorphic processes. However, their development rate is still unknown. In this work, we characterised and dated BRCs in an arid environment, under natural conditions, by integrating archaeological, microbiological and geological methods. To this end, we sampled rocks from a well-documented Byzantine archaeological site and the surrounding area located in the central Negev, Israel. The archaeological site, which is dated to the fourth to seventh centuries CE, was constructed from two lithologies, limestone and chalk. BRC started developing on the rocks after being carved, and its age should match that of the site. Using stable carbon and oxygen isotope ratios, we confirmed the biogenic nature of the crusts. The BRC samples showed mild differences in the microbial community assemblages between the site and its surroundings, irrespective of lithology, confirming the dominance of aeolian inoculation sources. All BRCs were dominated by Actinobacteria, Cyanobacteria and Proteobacteria. We further measured the BRC thickness on 1700-year-old building stone blocks and determined it to be 0.1-0.6 mm thick. Therefore, a BRC growth rate was estimated, for the first time, to be 0.06-0.35 mm kyr(-1). Our dating method was then validated on a similar archaeological site located ca. 20 km away, giving comparable values. We propose that BRC growth rates could be used as an affordable yet robust dating tool in archaeological sites in arid environments.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000661088300003
WOS关键词	BIOLOGICAL SOIL CRUSTS ; NEGEV DESERT ; HOT ; CYANOBACTERIAL ; COLONIZATION ; CARBONATES ; SIGNATURE ; SEQUENCES ; SEARCH ; ISRAEL
WOS类目	Ecology ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349695
作者单位	[Wieler, Nimrod; Gillor, Osnat] Ben Gurion Univ Negev, Zuckerberg Inst Water Res, Jacob Blaustein Inst Desert Res, Sede Boqer Campus, IL-8499000 Beer Sheva, Israel; [Gini, Tali Erickson] Israel Antiqu Author, IL-84965 Omer, Southern Region, Israel; [Angel, Roey] Biol Ctr CAS, Soil & Water Res Infrastruct, Ceske Budejovice, Czech Republic; [Angel, Roey] Biol Ctr CAS, Inst Soil Biol, Ceske Budejovice, Czech Republic
推荐引用方式 GB/T 7714	Wieler, Nimrod,Gini, Tali Erickson,Gillor, Osnat,et al. Microbial and geo-archaeological records reveal the growth rate, origin and composition of desert rock surface communities[J]. Ben-Gurion University of the Negev,2021,18(11):3331-3342.
APA	Wieler, Nimrod,Gini, Tali Erickson,Gillor, Osnat,&Angel, Roey.(2021).Microbial and geo-archaeological records reveal the growth rate, origin and composition of desert rock surface communities.BIOGEOSCIENCES,18(11),3331-3342.
MLA	Wieler, Nimrod,et al."Microbial and geo-archaeological records reveal the growth rate, origin and composition of desert rock surface communities".BIOGEOSCIENCES 18.11(2021):3331-3342.