干旱区生态环境知识资源中心(Arid): Plant functional groups and species contribute to ecological resilience a decade after woodland expansion treatments

Arid

DOI	10.1002/ecs2.3325
	Plant functional groups and species contribute to ecological resilience a decade after woodland expansion treatments
	Freund, Stephanie M.; Newingham, Beth A.; Chambers, Jeanne C.; Urza, Alexandra K.; Roundy, Bruce A.; Cushman, J. Hall
通讯作者	Newingham, BA (corresponding author), Univ Nevada, Dept Nat Resources & Environm Sci, Reno, NV 89557 USA. ; Newingham, BA (corresponding author), USDA ARS, Great Basin Rangelands Res Unit, Reno, NV 89512 USA.
来源期刊	ECOSPHERE
ISSN	2150-8925
出版年	2021
卷号	12 期号:1
英文摘要	Woody plant expansions are altering ecosystem structure and function, as well as fire regimes, around the globe. Tree-reduction treatments are widely implemented in expanding woodlands to reduce fuel loads, increase ecological resilience, and improve habitat, but few studies have measured treatment outcomes over long timescales or large geographic areas. The Sagebrush Treatment Evaluation Project (SageSTEP) evaluated the ecological effects of prescribed fire and cut-and-leave treatments in sagebrush communities experiencing tree expansion in North American cold desert shrublands. We used 10 yr of data from the SageSTEP network to test how treatments interacted with pre-treatment tree dominance, soil climate, and time since treatment to affect plant functional groups and dominant species. Non-sprouting shrub (Artemisia spp.), sprouting shrub, perennial graminoid, and annual grass responses depended on tree dominance and soil climate, and responses were related to the dominant species' life-history traits. Sites with warm and dry soils showed increased perennial graminoid but reduced Artemisia shrub cover across the tree dominance gradient after prescribed burning, while sites with cool and moist soils showed favorable post-burn responses for both functional types, particularly at low to moderate tree dominance. Cut-and-leave treatments sustained or increased native perennial plant functional groups and experienced smaller increases in exotic annual plants in both soil climates across the tree dominance gradient. Both treatments reduced biocrust cover. Selecting appropriate tree-reduction treatments to achieve desired long-term outcomes requires consideration of dominant species, site environmental conditions, and the degree of woodland expansion. Careful selection of management treatments will reduce the likelihood of undesirable consequences to the ecosystem.
英文关键词	ecological resilience fuel treatments pinyon-juniper woodlands prescribed fire resistance to invasion restoration sagebrush steppe Special Feature Sagebrush Steppe Treatment Evaluation Project woodland expansion
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000614109800030
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347831
作者单位	[Freund, Stephanie M.; Newingham, Beth A.; Cushman, J. Hall] Univ Nevada, Dept Nat Resources & Environm Sci, Reno, NV 89557 USA; [Newingham, Beth A.] USDA ARS, Great Basin Rangelands Res Unit, Reno, NV 89512 USA; [Chambers, Jeanne C.; Urza, Alexandra K.] US Forest Serv, Rocky Mt Res Stn, USDA, Reno, NV 89509 USA; [Roundy, Bruce A.] Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA
推荐引用方式 GB/T 7714	Freund, Stephanie M.,Newingham, Beth A.,Chambers, Jeanne C.,et al. Plant functional groups and species contribute to ecological resilience a decade after woodland expansion treatments[J],2021,12(1).
APA	Freund, Stephanie M.,Newingham, Beth A.,Chambers, Jeanne C.,Urza, Alexandra K.,Roundy, Bruce A.,&Cushman, J. Hall.(2021).Plant functional groups and species contribute to ecological resilience a decade after woodland expansion treatments.ECOSPHERE,12(1).
MLA	Freund, Stephanie M.,et al."Plant functional groups and species contribute to ecological resilience a decade after woodland expansion treatments".ECOSPHERE 12.1(2021).