干旱区生态环境知识资源中心(Arid): Snowpack shifts cyanobacterial community in biological soil crusts

Arid

DOI	10.1007/s40333-021-0061-x
	Snowpack shifts cyanobacterial community in biological soil crusts
	Zhang, Bingchang; Zhang, Yongqing; Zhou, Xiaobing; Li, Xiangzhen; Zhang, Yuanming
通讯作者	Zhang, YM (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China. ; Li, XZ (corresponding author), Fujian Agr & Forestry Univ, Fujian Prov Key Lab Soil Environm Hlth & Regulat, Coll Resources & Environm, Fuzhou 350002, Peoples R China.
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2021
英文摘要	Winter snowpack is an important source of moisture that influences the development of biological soil crusts (BSCs) in desert ecosystems. Cyanobacteria are important photosynthetic organisms in BSCs. However, the responses of the cyanobacterial community in BSCs to snowpack, snow depth and melting snow are still unknown. In this study, we investigated the cyanobacterial community composition and diversity in BSCs under different snow treatments (doubled snow, ambient snow and removed snow) and three snow stages (stage 1, snowpack; stage 2, melting snow; and stage 3, melted snow) in the Gurbantunggut Desert in China. In stages 1 and 2, Cyanobacteria were the dominant phylum in the bacterial community in the removed snow treatment, whereas Proteobacteria and Bacteroidetes were abundant in the bacterial communities in the ambient snow and doubled snow treatments. The relative abundances of Proteobacteria and Bacteroidetes increased with increasing snow depth. The relative abundances of Cyanobacteria and other bacterial taxa were affected mainly by soil temperature and irradiance. In stages 2 and 3, the relative abundance of Cyanobacteria increased quickly due to the suitable soil moisture and irradiance conditions. Oscillatoriales, Chroococcales, Nostocales, Synechococcales and unclassified Cyanobacteria were detected in all the snow treatments, and the most dominant taxa were Oscillatoriales and Chroococcales. Various cyanobacterial taxa showed different responses to snowpack. Soil moisture and irradiance were the two critical factors shaping the cyanobacterial community structure. The snowpack depth and duration altered the soil surface irradiance, soil moisture and other soil properties, which consequently were selected for different cyanobacterial communities. Thus, local microenvironmental filtering (niche selection) caused by snow conditions may be a dominant process driving shifts in the cyanobacterial community in BSCs.
英文关键词	cyanobacterial diversity community structure biological soil crusts snowpack niche selection
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000639712500001
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352311
作者单位	[Zhang, Bingchang; Zhang, Yongqing] Shanxi Normal Univ, Geog Sci Coll, Linfen 041004, Shanxi, Peoples R China; [Zhang, Bingchang; Zhou, Xiaobing; Zhang, Yuanming] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Li, Xiangzhen] Fujian Agr & Forestry Univ, Fujian Prov Key Lab Soil Environm Hlth & Regulat, Coll Resources & Environm, Fuzhou 350002, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Bingchang,Zhang, Yongqing,Zhou, Xiaobing,et al. Snowpack shifts cyanobacterial community in biological soil crusts[J]. 中国科学院新疆生态与地理研究所,2021.
APA	Zhang, Bingchang,Zhang, Yongqing,Zhou, Xiaobing,Li, Xiangzhen,&Zhang, Yuanming.(2021).Snowpack shifts cyanobacterial community in biological soil crusts.JOURNAL OF ARID LAND.
MLA	Zhang, Bingchang,et al."Snowpack shifts cyanobacterial community in biological soil crusts".JOURNAL OF ARID LAND (2021).