干旱区生态环境知识资源中心(Arid): Passive restoration of vegetation and biological soil crusts following 80 years of exclusion from grazing across the Great Basin

Arid

DOI	10.1111/rec.13021
	Passive restoration of vegetation and biological soil crusts following 80 years of exclusion from grazing across the Great Basin
	Condon, Lea A.; Pietrasiak, Nicole; Rosentreter, Roger; Pyke, David A.
通讯作者	Condon, LA
来源期刊	RESTORATION ECOLOGY
ISSN	1061-2971
EISSN	1526-100X
出版年	2020
卷号	28 页码:S75-S85
英文摘要	Restoration targets for biological soil crusts are largely unknown. We surveyed seven 80-year-old grazing exclosures across northern Nevada for biocrusts to quantify reference conditions at relatively undisturbed sites. Exclosures were associated with the following plant communities: Wyoming big sagebrush, black sagebrush, and areas co-dominated by winterfat and Wyoming big sagebrush. Cover of biocrusts and shrubs were generally higher than other plant groups at these sites, regardless of being inside or outside of the exclosures, suggesting these groups make up most of the native flora across the region. Important in forming soil structure, cyanobacteria of the order Oscillatoriales were less abundant and diverse in black sagebrush communities. Grazing had a negative effect on the abundance of Oscillatoriales but not the number of algal taxa, including cyanobacteria. Abundance of light algal crusts were not influenced by plant community or grazing. Dark algal crusts were generally less abundant on grazed sites. Influences of plant community and grazing were most apparent when accounting for reproductive rates of lichens and mosses based on establishment mechanisms. Abundance of shrubs, perennial grasses, Oscillatoriales, fast reproducing biocrusts and the number of algal and cyanobacterial taxa, varied by plant community, suggesting that restoration should be plant community specific. We demonstrate the affinity of rapidly reproducing biocrusts for winterfat-Wyoming big sagebrush co-dominated plant communities, regardless of grazing pressure. Across sites, the effects of grazing were most evident on the abundance of Oscillatoriales and slowly reproducing biocrusts following 80 years of cessation from grazing.
英文关键词	algae biocrusts black sagebrush cyanobacteria livestock grazing winterfat Wyoming big sagebrush
类型	Article
语种	英语
开放获取类型	Other Gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000558176500009
WOS关键词	SPATIAL-DISTRIBUTION ; BROMUS-TECTORUM ; DESERT ; RECOVERY ; INFILTRATION ; AEROBIOLOGY ; LANDSCAPE ; MOSSES ; STEPPE ; SHRUB
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	United States Geological Survey ; New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325544
作者单位	[Condon, Lea A.; Pyke, David A.] US Geol Survey, Forest & Rangeland Ecosyst Sci Ctr, Corvallis, OR 97331 USA; [Pietrasiak, Nicole] New Mexico State Univ, Plant & Environm Sci Dept, Las Cruces, NM 88003 USA; [Rosentreter, Roger] Boise State Univ, Biol Dept, Boise, ID 83725 USA
推荐引用方式 GB/T 7714	Condon, Lea A.,Pietrasiak, Nicole,Rosentreter, Roger,et al. Passive restoration of vegetation and biological soil crusts following 80 years of exclusion from grazing across the Great Basin[J]. United States Geological Survey, New Mexico State University,2020,28:S75-S85.
APA	Condon, Lea A.,Pietrasiak, Nicole,Rosentreter, Roger,&Pyke, David A..(2020).Passive restoration of vegetation and biological soil crusts following 80 years of exclusion from grazing across the Great Basin.RESTORATION ECOLOGY,28,S75-S85.
MLA	Condon, Lea A.,et al."Passive restoration of vegetation and biological soil crusts following 80 years of exclusion from grazing across the Great Basin".RESTORATION ECOLOGY 28(2020):S75-S85.