干旱区生态环境知识资源中心(Arid): Invasive annual grass interacts with drought to influence plant communities and soil moisture in dryland restoration

Arid

DOI	10.1002/ecs2.3417
	Invasive annual grass interacts with drought to influence plant communities and soil moisture in dryland restoration
	Garbowski, Magda; Johnston, Danielle B.; Baker, Dirk V.; Brown, Cynthia S.
通讯作者	Garbowski, M (corresponding author), Colorado State Univ, Grad Degree Program Ecol, 102 Johnson Hall, Ft Collins, CO 80523 USA. ; Garbowski, M (corresponding author), Colorado State Univ, Dept Agr Biol, 307 Univ Ave, Ft Collins, CO 80521 USA.
来源期刊	ECOSPHERE
ISSN	2150-8925
出版年	2021
卷号	12 期号:3
英文摘要	Understanding the combined effects of drought and invasive species on plant community development and soil moisture could provide valuable insight into the mechanisms hindering successful native plant establishment in dryland restoration projects. We implemented a re-vegetation experiment at two sites in Colorado, USA (one each in the Western Great Plains and Cold Desert ecoregions) to investigate the effects of drought (66% reduction of ambient growing season rainfall), non-native Bromus tectorum seed addition (465 seeds/m(2)), and superabsorbent polymer soil amendment (25 g/m(2)) on plant community development and soil volumetric water content at 5 and 30 cm depth. Drought resulted in higher B. tectorum cover at the Western Great Plains site but lower B. tectorum cover at the Cold Desert site. These contrasting results suggest drought may interact with site-specific precipitation patterns to influence B. tectorum establishment. At the Western Great Plains site, drought reduced seeded forb cover and B. tectorum seed addition reduced seeded grass cover, highlighting how the effects of drought and invasive species may vary depending on which functional group is assessed. At the Cold Desert site, drought and B. tectorum seed addition each decreased seeded species cover from approximately 8% to 3%. Superabsorbent polymer effects were limited to slight increases in overall seeded grass cover at the Western Great Plains site from 2.2% to 4.9%. Both drought and B. tectorum seed addition reduced soil volumetric water content but in some cases effects depended on interactions between the two treatments, site, or soil depth. Notably, at the Cold Desert site the reduction in soil volumetric water content resulting from B. tectorum seed addition with ambient precipitation exceeded that of the drought treatment alone at 5 and 30 cm depth. Our results demonstrate that drought and invasive species both negatively influence native plant establishment and soil moisture, and in some cases may interact. Considering both abiotic and biotic stressors as well as their interactions in restoration planning could improve our understanding of native plant establishment and improve re-vegetation outcomes.
英文关键词	Bromus tectorum climate change drought invasive annual grass restoration soil amendment soil moisture
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000636318200002
WOS关键词	CHEATGRASS BROMUS-TECTORUM ; SUPER ABSORBENT POLYMER ; CLIMATE-CHANGE ; SUPERABSORBENT POLYMER ; TEMPORAL VARIABILITY ; PERENNIAL BUNCHGRASS ; HYDROGEL AMENDMENT ; NATIVE GRASSES ; RESOURCE USE ; WATER
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	Colorado State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350046
作者单位	[Garbowski, Magda; Brown, Cynthia S.] Colorado State Univ, Grad Degree Program Ecol, 102 Johnson Hall, Ft Collins, CO 80523 USA; [Garbowski, Magda; Brown, Cynthia S.] Colorado State Univ, Dept Agr Biol, 307 Univ Ave, Ft Collins, CO 80521 USA; [Johnston, Danielle B.] Colorado Div Parks & Wildlife, 711 Independent Ave, Grand Junction, CO 81505 USA; [Baker, Dirk V.] Campbell Sci Inc, 815 W 1800 N, Logan, UT 84321 USA
推荐引用方式 GB/T 7714	Garbowski, Magda,Johnston, Danielle B.,Baker, Dirk V.,et al. Invasive annual grass interacts with drought to influence plant communities and soil moisture in dryland restoration[J]. Colorado State University,2021,12(3).
APA	Garbowski, Magda,Johnston, Danielle B.,Baker, Dirk V.,&Brown, Cynthia S..(2021).Invasive annual grass interacts with drought to influence plant communities and soil moisture in dryland restoration.ECOSPHERE,12(3).
MLA	Garbowski, Magda,et al."Invasive annual grass interacts with drought to influence plant communities and soil moisture in dryland restoration".ECOSPHERE 12.3(2021).