干旱区生态环境知识资源中心(Arid): Comparison of Water- and Nitrogen-Use Efficiency over Drip Irrigation with Border Irrigation Based on a Model Approach

Arid

DOI	10.3390/agronomy10121890
	Comparison of Water- and Nitrogen-Use Efficiency over Drip Irrigation with Border Irrigation Based on a Model Approach
	Wang, Yahui; Li, Sien; Liang, Hao; Hu, Kelin; Qin, Shujing; Guo, Hui
通讯作者	Li, SE (corresponding author), China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China.
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2020
卷号	10 期号:12
英文摘要	Drip irrigation under film mulching is widely promoted to replace traditional border irrigation in order to meet water saving demand in arid and semiarid regions. Our study aims to investigate quantitatively the change in crop yield, water-use efficiency (WUE) and nitrogen-use efficiency (NUE) under film mulching drip irrigation. We conducted a 4-year contrastive experiment containing two treatments on flux measurement: (1) border irrigation (BI) under film mulching; (2) drip irrigation (DI) under film mulching. Soil water and nitrate transport and utilization in the Soil-Plants-Atmosphere Continuum system, and crop dry matter were all simulated based on an integrated model of a soil-crop system: water, heat, carbon and nitrogen simulator (WHCNS). Results showed soil water content (SWC), soil NO3--N content, evapotranspiration (ET), and crop dry matter (Wtotal) produced by the model were in agreement with those measured. Our study showed the irrigation and nitrogen input and output were significantly changed after BI was replaced by DI. Compared with BI treatment, DI treatment decreased ET consumption by 9% annually over four years, while it increased WUE and NUE on the farmland on average by about 28% and 39% yearly. The increase of WUE and NUE were mainly due to a significant decrease of about 56% and 68% in water and nitrogen leakage loss in DI treatment, respectively, during 2014-2017. Our study confirmed the economic and environmental benefits of the DI technology and showed its improvement prospect in the research field. Meanwhile, the results contributed to the improvement and more effective application of DI in a larger region, and provided a data basis for further study on water and fertilizer saving characteristics of DI technology.
英文关键词	drip irrigation film mulching water use efficiency nitrogen use efficiency nitrogen loss
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000601747000001
WOS关键词	CROP EVAPOTRANSPIRATION ; MANAGEMENT-PRACTICES ; WINTER-WHEAT ; RICE FIELDS ; BELL PEPPER ; MAIZE FIELD ; SAVE WATER ; SOIL ; YIELD ; EMISSIONS
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
来源机构	中国农业大学 ; 河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369222
作者单位	[Wang, Yahui; Li, Sien; Qin, Shujing; Guo, Hui] China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China; [Liang, Hao] Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China; [Hu, Kelin] China Agr Univ, Minist Agr, Key Lab Arable Land Conservat North China, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yahui,Li, Sien,Liang, Hao,et al. Comparison of Water- and Nitrogen-Use Efficiency over Drip Irrigation with Border Irrigation Based on a Model Approach[J]. 中国农业大学, 河海大学,2020,10(12).
APA	Wang, Yahui,Li, Sien,Liang, Hao,Hu, Kelin,Qin, Shujing,&Guo, Hui.(2020).Comparison of Water- and Nitrogen-Use Efficiency over Drip Irrigation with Border Irrigation Based on a Model Approach.AGRONOMY-BASEL,10(12).
MLA	Wang, Yahui,et al."Comparison of Water- and Nitrogen-Use Efficiency over Drip Irrigation with Border Irrigation Based on a Model Approach".AGRONOMY-BASEL 10.12(2020).