干旱区生态环境知识资源中心(Arid): Mechanisms underlying nitrous oxide emissions and nitrogen leaching from potato fields under drip irrigation and furrow irrigation

Arid

DOI	10.1016/j.agwat.2021.107270
	Mechanisms underlying nitrous oxide emissions and nitrogen leaching from potato fields under drip irrigation and furrow irrigation
	Yu, Yaze; Jiao, Yan; Yang, Wenzhu; Song, Chunni; Zhang, Jing; Liu, Yubin
通讯作者	Yang, WZ (corresponding author), Inner Mongolia Normal Univ, Inner Mongolia Key Lab Environm Chem, 81 Zhaowuda Rd, Saihan 010022, Hohhot, Peoples R China.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2022
卷号	260
英文摘要	Irrigation methods can affect nitrogen loss in agricultural soil. Exploring the effects of different irrigation methods on soil nitrogen losses in arid areas can provide a basis for more effective water and fertilizer management. A 2-year field experiment was performed, using a static chamber and soil solution extractor, to quantify nitrous oxide (N2O) emissions and nitrogen leaching from upland soils during various potato plant growth stages. The treatments included drip fertigation without fertilizer, drip fertigation + 500 kg N /hm2, drip fertigation + 1000 kg N /hm2, furrow irrigation without fertilizer, furrow irrigation + 500 kg N /hm2, and furrow irrigation + 1000 kg N /hm2. N2O emissions and nitrogen leaching were significantly different at the different potato growth stages (P<0.01). Under both irrigation methods, the peak N2O emissions appeared during the tuber setting and swelling stages, and the total emission ratios of the two stages under each treatment in these two periods were 56-89% in 2018 and 2019. Nitrogen dioxide (NO2- ) plays a crucial role in N2O emissions. A significant peak in N2O emissions was found to be related to the existence of NO2- . The correlation coefficient between NO2concentration and N2O emissions reached 0.6413 (P<0.05). Leaching losses also peaked during the tuber setting and swelling stages, with ratios of 51.14-84.22%. Compared with furrow irrigation, the N2O emissions from drip irrigation were decreased by 34.10-81.36%, nitrogen leaching decreased by 35.26-68.35%, and the N2O emission intensity decreased by 40.0-86.9%. Drip irrigation can effectively decrease nitrogen losses, and is an effective strategy to save water, to mitigate the emission of atmospheric pollutants such as N2O, and reduce nitrogen leaching.
英文关键词	Irrigation method Nitrogen dioxide Nitrate Ammonium N2O emission
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000719313900002
WOS关键词	N2O EMISSIONS ; MINERAL FERTILIZER ; CO2 EMISSIONS ; SOIL ; CH4 ; METHANE ; CARBON ; MITIGATION ; FLUXES ; GROWTH
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374537
作者单位	[Yu, Yaze; Jiao, Yan; Yang, Wenzhu; Song, Chunni; Zhang, Jing; Liu, Yubin] Inner Mongolia Normal Univ, Inner Mongolia Key Lab Environm Chem, 81 Zhaowuda Rd, Saihan 010022, Hohhot, Peoples R China
推荐引用方式 GB/T 7714	Yu, Yaze,Jiao, Yan,Yang, Wenzhu,et al. Mechanisms underlying nitrous oxide emissions and nitrogen leaching from potato fields under drip irrigation and furrow irrigation[J],2022,260.
APA	Yu, Yaze,Jiao, Yan,Yang, Wenzhu,Song, Chunni,Zhang, Jing,&Liu, Yubin.(2022).Mechanisms underlying nitrous oxide emissions and nitrogen leaching from potato fields under drip irrigation and furrow irrigation.AGRICULTURAL WATER MANAGEMENT,260.
MLA	Yu, Yaze,et al."Mechanisms underlying nitrous oxide emissions and nitrogen leaching from potato fields under drip irrigation and furrow irrigation".AGRICULTURAL WATER MANAGEMENT 260(2022).