干旱区生态环境知识资源中心(Arid): Restoring Perennial Grasses in Medusahead Habitat: Role of Tilling, Fire, Herbicides, and Seeding Rate

Arid

DOI	10.1016/j.rama.2018.10.012
	Restoring Perennial Grasses in Medusahead Habitat: Role of Tilling, Fire, Herbicides, and Seeding Rate
	Schantz, Merilynn 1; Sheley, Roger 2; Hardegree, Stuart 3
通讯作者	Schantz, Merilynn
来源期刊	RANGELAND ECOLOGY & MANAGEMENT
ISSN	1550-7424
EISSN	1551-5028
出版年	2019
卷号	72 期号:2 页码:249-259
英文摘要	Restoring arid regions degraded by invasive annual grasses to native perennial grasses is a critical conservation goal. Targeting site availability, species availability, and species performance is a key strategy for reducing invasive annual grass cover while simultaneously increasing the abundance of seeded native perennial grasses. However, the potential for establishing successful seedings is still highly variable in rangeland ecosystems, likely because of variable year-to-year weather. In this study, we evaluated the independent and combined inputs of tilling, burning, applying imazapic herbicide, and varying seeding rates on existing species and seeded native perennial grass performance from 2008 to 2012 in a southwestern Idaho rangeland ecosystem. We found that combining tilling, fire, and herbicides produced the lowest annual grass cover. The combination of fire and herbicides yielded the highest seeded species density in the hydrologic year (HY) (October -September) 2010, especially at higher than minimum recommended seeding rates. Although the independent and combined effects of fire and herbicides directly affected the growth of resident species, they failed to affect seeded species cover except in HY 2010, when weather was favorable for seedling growth. Specifically, low winter temperature variability (few freeze-thaw cycles) followed by high growing season precipitation in HY 2010 yielded 14 x more seeded perennial grasses than any other seeding year, even though total annual precipitation amounts did not greatly vary between 2009 and 2012. Collectively, these findings suggest that tilling, applying prescribed fire, and herbicides before seeding at least 5 x the minimum recommended seeding rate should directly reduce resident annual grass abundance and likely yield high densities of seeded species in annual grass-dominated ecosystems, but only during years of stable winter conditions followed by wet springs. (C) 2018 Published by Elsevier Inc. on behalf of The Society for Range Management.
英文关键词	ecologically based invasive plant management imazapic herbicide prescribed fire restoration seed rate weather variability
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000460292800005
WOS关键词	GREAT-BASIN ; BROMUS-TECTORUM ; SAGEBRUSH STEPPE ; PLANT COMMUNITY ; RECRUITMENT ; VEGETATION ; RANGELAND ; EMERGENCE ; INVASIONS ; WILDFIRE
WOS类目	Ecology ; Environmental Sciences
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/2XILL650/218297
作者单位	1.Red Rock Resources LLC, 6 Bridger Circle, Miles City, MT 59301 USA; 2.USDA ARS, Eastern Oregon Agr Res Ctr, Burns, OR 97720 USA; 3.USDA ARS, Northwest Watershed Res Ctr, Boise, ID 83712 USA
推荐引用方式 GB/T 7714	Schantz, Merilynn,Sheley, Roger,Hardegree, Stuart. Restoring Perennial Grasses in Medusahead Habitat: Role of Tilling, Fire, Herbicides, and Seeding Rate[J],2019,72(2):249-259.
APA	Schantz, Merilynn,Sheley, Roger,&Hardegree, Stuart.(2019).Restoring Perennial Grasses in Medusahead Habitat: Role of Tilling, Fire, Herbicides, and Seeding Rate.RANGELAND ECOLOGY & MANAGEMENT,72(2),249-259.
MLA	Schantz, Merilynn,et al."Restoring Perennial Grasses in Medusahead Habitat: Role of Tilling, Fire, Herbicides, and Seeding Rate".RANGELAND ECOLOGY & MANAGEMENT 72.2(2019):249-259.