干旱区生态环境知识资源中心(Arid): Fall-Grazing and Grazing-Exclusion Effects on Cheatgrass (Bromus tectorum) Seed Bank Assays in Nevada, United States

Arid

DOI	10.1016/j.rama.2020.01.012
	Fall-Grazing and Grazing-Exclusion Effects on Cheatgrass (Bromus tectorum) Seed Bank Assays in Nevada, United States
	Perryman, Barry L.1; Schultz, Brad W.2; Burrows, Michelle 3,4; Shenkoru, Teshome 1; Wilker, Jon 1
通讯作者	Perryman, Barry L.
来源期刊	RANGELAND ECOLOGY & MANAGEMENT
ISSN	1550-7424
EISSN	1551-5028
出版年	2020
卷号	73 期号:3 页码:343-347
英文摘要	Cheatgrass (Bromus tectorum L.) seedlings suffer mortality if they do not occupy safe sites that provide establishment requirements. Previous research demonstrated that fall cattle grazing has strong potential for reducing invasive annual grass species dominance in winter-dominated precipitation areas of the Intermountain West. Fall cattle grazing reduces the volume of safe sites through the removal of standing dead biomass in the fall and early winter, when cheatgrass can actively germinate. This study continued an assessment of cheatgrass seed bank characteristics under fall-grazing and grazing exclusion treatments initiated by a previous study. A seed bank assay was organized into a randomized complete block, repeated measure design to assess cheatgrass seed bank characteristics from 2014 to 2017 in central Nevada. Across years, fall-grazed areas had about half the assayed seed bank levels (3 432 +/- 2 513 seeds . m(-2)) of ungrazed areas (7 187 +/- 1 569), (P<0.0001). There was also a difference among years with 2015 producing higher assayed numbers in both grazing treatments. Combined plotted data from this and the previous study indicated that after several years of fall-grazing treatments, removal of fall cattle grazing for only 1 yr can result in significant increases in cheatgrass seed bank size. Conversely, reapplication of fall cattle grazing can quickly decrease cheatgrass seed bank potential. (C) 2020 The Society for Range Management. Published by Elsevier Inc. All rights reserved.
英文关键词	Great Basin invasive annual grasses wildfire
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000537289300001
WOS关键词	POPULATION-DYNAMICS ; SOIL ; FIRE ; ESTABLISHMENT ; COMMUNITIES ; COMPETITION ; DOMINANCE ; DECLINE ; SYSTEMS ; DESERT
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/2XILL650/318602
作者单位	1.Univ Nevada, Dept Agr Vet & Range Sci, Mail Stop 202, Reno, NV 89557 USA; 2.Univ Nevada, Univ Nevada Cooperat Extens, Reno, NV 89557 USA; 3.Utah State Univ, Appl Sci Technol & Educ Dept, Logan, UT 84322 USA; 4.Acad Arts Careers & Technol, Nat Resources & Anim Sci, Reno, NV 89502 USA
推荐引用方式 GB/T 7714	Perryman, Barry L.,Schultz, Brad W.,Burrows, Michelle,et al. Fall-Grazing and Grazing-Exclusion Effects on Cheatgrass (Bromus tectorum) Seed Bank Assays in Nevada, United States[J],2020,73(3):343-347.
APA	Perryman, Barry L.,Schultz, Brad W.,Burrows, Michelle,Shenkoru, Teshome,&Wilker, Jon.(2020).Fall-Grazing and Grazing-Exclusion Effects on Cheatgrass (Bromus tectorum) Seed Bank Assays in Nevada, United States.RANGELAND ECOLOGY & MANAGEMENT,73(3),343-347.
MLA	Perryman, Barry L.,et al."Fall-Grazing and Grazing-Exclusion Effects on Cheatgrass (Bromus tectorum) Seed Bank Assays in Nevada, United States".RANGELAND ECOLOGY & MANAGEMENT 73.3(2020):343-347.