干旱区生态环境知识资源中心(Arid): Carbon footprint of maize-wheat cropping system after 40-year fertilization

Arid

DOI	10.1016/j.scitotenv.2024.172082
	Carbon footprint of maize-wheat cropping system after 40-year fertilization
	Shao, Guodong; Zhou, Jie; Liu, Buchun; Alharbi, Sulaiman Almwarai; Liu, Enke; Kuzyakov, Yakov
通讯作者	Liu, BC ; Liu, EK
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2024
卷号	926
英文摘要	Two main challenges which human society faces for sustainable development goals are the maintenance of food security and mitigation of greenhouse gas (GHG) emissions. Here, we examined the impacts of six fertilization treatments including unfertilized control (CK), mineral nitrogen (N, 90 kg N ha - 1 ), mineral N plus 30 kg P ha -1 phosphorus (NP), NP combined with 3.75 Mg ha - 1 straw (NP + Str), farmyard manure (Man, 75 Mg ha - 1 ), and NP combined with manure (NP + Man) on crop productivity and carbon emissions (soil GHG emission; GHGI, yield -based GHG intensity; NGHGB, net GHG balance; carbon footprint, CF) in a maize -wheat cropping system during two years (April 2018 - June 2020) in a semi -arid continental climate after 40 years of fertilization in the Northwest China. Manure and straw increased total GHG by 38 - 60 % compared to the mineral fertilizers alone, which was mainly due to the 49 - 80 % higher direct emissions of carbon dioxide (CO 2 ) rather than nitrous oxide (N 2 O). Compared to the N fertilizer alone, organic amendments and NP increased cumulative energy yield by 134 - 202 % but decreased GHGI by 38 - 55 %, indicating that organic fertilizers increased crop productivity at the cost of higher GHG emissions. When the soil organic carbon changes ( Delta SOC) were accounted for in the C emission balance, manure application acted as a net C sink due to the NGHGB recorded with -123 kg CO 2 -eq ha -1 year -1 . When producing the same yield and economic benefits, the manure and straw addition decreased the CF by 59 - 85 % compared to N fertilization alone. Overall, the transition from mineral to organic fertilization in the semi -arid regions is a two-way independent solution to increase agricultural productivity along with the reduction of C emissions.
英文关键词	Nitrogen fertilization Greenhouse gas emission Straw Manure Energy yield
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001224245600001
WOS关键词	ORGANIC AMENDMENTS ; SOIL CARBON ; GREENHOUSE ; DECOMPOSITION ; EMISSIONS ; SEQUESTRATION ; PRODUCTIVITY ; FERTILITY ; MATTER ; MANURE
WOS类目	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/2XILL650/405482
推荐引用方式 GB/T 7714	Shao, Guodong,Zhou, Jie,Liu, Buchun,et al. Carbon footprint of maize-wheat cropping system after 40-year fertilization[J],2024,926.
APA	Shao, Guodong,Zhou, Jie,Liu, Buchun,Alharbi, Sulaiman Almwarai,Liu, Enke,&Kuzyakov, Yakov.(2024).Carbon footprint of maize-wheat cropping system after 40-year fertilization.SCIENCE OF THE TOTAL ENVIRONMENT,926.
MLA	Shao, Guodong,et al."Carbon footprint of maize-wheat cropping system after 40-year fertilization".SCIENCE OF THE TOTAL ENVIRONMENT 926(2024).