干旱区生态环境知识资源中心(Arid): Planting practices and mulching materials improve maize net ecosystem C budget, global warming potential and production in semi-arid regions

Arid

DOI	10.1016/j.still.2020.104850
	Planting practices and mulching materials improve maize net ecosystem C budget, global warming potential and production in semi-arid regions
	Jia, Qianmin; Zhang, Haixing; Wang, Jia; Xiao, Xiangming; Chang, Shenghua; Zhang, Cheng; Liu, Yongjie; Hou, Fujiang
通讯作者	Jia, QM ; Hou, FJ (corresponding author), Lanzhou Univ, State Key Lab Grassland Agroecosyst,Coll Pastoral, Key Lab Grassland Livestock Ind Innovat,Minist Ed, Minist Agr & Rural Affairs,Engn Res Ctr Grassland, Lanzhou 730020, Peoples R China.
来源期刊	SOIL & TILLAGE RESEARCH
ISSN	0167-1987
EISSN	1879-3444
出版年	2021
卷号	207
英文摘要	Planting and mulching practices have long been used to change soil water storage, which may increase crop yields in dry-land farming systems. But, few research works have focused on mulching practices on the greenhouse gas intensity (GHGI), global warming potential (GWP), and net ecosystem C budget (NECB). Therefore, a two years field study was carried out in 2017-2018 to evaluate NECB, GWP, GHGI, biomass and maize production under six treatments: RPS: ridge tillage with film mulch on ridges and straw on furrows; RP: ridge tillage with film mulch on ridges; RT: ridge tillage without film mulch; FM: film mulching; SM: straw mulching; CT: conventional tillage. Finding of our results showed that both plastic film and straw mulching under two planting methods considerable reduced (41.3 %) GHGI, and improving the maize production and soil water status. The RPS treatment improved the soil environment, thus significantly increased corn productivity, C breathing loss, NECB, GWP, N2O, and CH4 emissions. The improve in NPP through RPS treatment is higher than the C loss in respiration, but seasonal NECB shows larger negative values because more NPP is removed as grain and straw. In the RPS treatment increased (22.3 %) the net GWP over flat planting without mulched, but decreased GHGI, due to increased (42.1 %) biomass productivity. The RPS treatment results in higher N2O, CO2 emissions and GWP, and therefore, has an adverse impact on the environment compared to CT treatment. However, the higher WUEg (72.1 %), WUEb (34.4 %), biomass and (83.1 %) grain yields obtained through RPS treatment may balance the negative ecological impacts associated with climate change. Thus, under dry farming systems, RPS treatment may be an effective water-saving management strategy that can increase WUE, biomass, corn yield and reduce the impact of global warming by increasing crop yields.
英文关键词	Biomass production Farming practices Greenhouse gas emissions Mulching strategies Net ecosystem C budget
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000603542400005
WOS关键词	WATER-USE EFFICIENCY ; GREENHOUSE-GAS EMISSIONS ; SOIL CARBON SEQUESTRATION ; TEMPERATE UPLAND SOIL ; ORGANIC-CARBON ; NITROUS-OXIDE ; WINTER-WHEAT ; CROPPING SYSTEMS ; DRIP IRRIGATION ; PLASTIC MULCH
WOS类目	Soil Science
WOS研究方向	Agriculture
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/2XILL650/348210
作者单位	[Jia, Qianmin; Zhang, Haixing; Wang, Jia; Xiao, Xiangming; Chang, Shenghua; Zhang, Cheng; Liu, Yongjie; Hou, Fujiang] Lanzhou Univ, State Key Lab Grassland Agroecosyst,Coll Pastoral, Key Lab Grassland Livestock Ind Innovat,Minist Ed, Minist Agr & Rural Affairs,Engn Res Ctr Grassland, Lanzhou 730020, Peoples R China
推荐引用方式 GB/T 7714	Jia, Qianmin,Zhang, Haixing,Wang, Jia,et al. Planting practices and mulching materials improve maize net ecosystem C budget, global warming potential and production in semi-arid regions[J]. 兰州大学,2021,207.
APA	Jia, Qianmin.,Zhang, Haixing.,Wang, Jia.,Xiao, Xiangming.,Chang, Shenghua.,...&Hou, Fujiang.(2021).Planting practices and mulching materials improve maize net ecosystem C budget, global warming potential and production in semi-arid regions.SOIL & TILLAGE RESEARCH,207.
MLA	Jia, Qianmin,et al."Planting practices and mulching materials improve maize net ecosystem C budget, global warming potential and production in semi-arid regions".SOIL & TILLAGE RESEARCH 207(2021).