干旱区生态环境知识资源中心(Arid): Herbicide applications increase greenhouse gas emissions of alfalfa pasture in the inland arid region of northwest China

Arid

DOI	10.7717/peerj.9231
	Herbicide applications increase greenhouse gas emissions of alfalfa pasture in the inland arid region of northwest China
	Shi, Lina; Guo, Yarong; Ning, Jiao; Lou, Shanning; Hou, Fujiang
通讯作者	Hou, Fujiang
来源期刊	PEERJ
ISSN	2167-8359
出版年	2020
卷号	8
英文摘要	Herbicides are used to control weeds in agricultural crops such as alfalfa (Medicago sativa L.), which is a forage crop. It is unclear what, if any, effect herbicides have on greenhouse gas (GHG) emissions when used on alfalfa. Our study was conducted in 2017 and 2018 to investigate the effects of two herbicides (Quizalofop-p-ethyl, QE and Bentazone, BT) on methane (CH4), carbon dioxide (CO2) and nitrous oxide (N2O) emissions from soil planted with alfalfa. QE is used to control grasses and BT is used for broadleaf weed control. Soil CO2 emissions and soil uptake of CH4 increased significantly in both years following the QE and BT treatments, although CO2 emissions differed significantly between the trial years. N2O emissions decreased relative to the control and showed no significant differences between the trial years. The application of QE and BT on alfalfa resulted in a significant increase in CO2 emissions which contributed to a significant increase in GHG emissions. The application of QE influenced GHG emissions more than BT. We demonstrated the potential effect that herbicide applications have on GHG fluxes, which are important when considering the effect of agricultural practices on GHG emissions and the potential for global warming over the next 100 years.
英文关键词	Herbicides Weeds Control Greenhouse gases Alfalfa
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000535146400003
WOS关键词	METHANE EMISSION ; WEED MANAGEMENT ; CARBON-DIOXIDE ; SOIL-MOISTURE ; CO2 EMISSIONS ; CH4 ; RESPIRATION ; RESISTANCE ; RYEGRASS ; YIELD
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319170
作者单位	Lanzhou Univ, Coll Pastoral Agr Sci & Technol,Engn Res Ctr Gras, State Key Lab Grassland Agroecosyst,Minist Agr &, Minist Educ,Key Lab Grassland Livestock Ind Innov, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Shi, Lina,Guo, Yarong,Ning, Jiao,et al. Herbicide applications increase greenhouse gas emissions of alfalfa pasture in the inland arid region of northwest China[J]. 兰州大学,2020,8.
APA	Shi, Lina,Guo, Yarong,Ning, Jiao,Lou, Shanning,&Hou, Fujiang.(2020).Herbicide applications increase greenhouse gas emissions of alfalfa pasture in the inland arid region of northwest China.PEERJ,8.
MLA	Shi, Lina,et al."Herbicide applications increase greenhouse gas emissions of alfalfa pasture in the inland arid region of northwest China".PEERJ 8(2020).