干旱区生态环境知识资源中心(Arid): THE SYNERGISTIC EFFECTS OF DRIP SYSTEM UNIFORMITY AND SOIL VARIABILITY ON DRAINAGE AND NITRATE LEACHING UNDER ARID CONDITIONS: A NUMERICAL STUDY

Arid

DOI	10.1002/ird.2390
	THE SYNERGISTIC EFFECTS OF DRIP SYSTEM UNIFORMITY AND SOIL VARIABILITY ON DRAINAGE AND NITRATE LEACHING UNDER ARID CONDITIONS: A NUMERICAL STUDY
	Guan, Hongjie 1,2; Li, Jiusheng 2; Li, Yanfeng 2
通讯作者	Guan, Hongjie
来源期刊	IRRIGATION AND DRAINAGE
ISSN	1531-0353
EISSN	1531-0361
出版年	2019
卷号	68 期号:5 页码:950-960
英文摘要	Both irrigation and soil heterogeneities can affect drainage and nitrate leaching. However, the interactive effect of irrigation and soil heterogeneity under different irrigation levels still remains unclear. The irrigation and soil heterogeneity effects on drainage and nitrate leaching at a typical growth stage for cotton were evaluated using the HYDRUS-2D software. The results showed that increasing irrigation heterogeneity increased the average drainage and nitrate leaching; however, the opposite result was observed for the effect of soil heterogeneity. Both irrigation and soil heterogeneity had a negative effect on the Nemerow average drainage and nitrate leaching. The Nemerow average drainage and nitrate leaching that resulted from the combined heterogeneities were higher than those obtained when either irrigation or soil heterogeneity was considered. An increase in irrigation level increased the Nemerow average drainage and nitrate leaching. Both irrigation and soil heterogeneity had a substantial influence on the variability of drainage and nitrate leaching. Combined irrigation and soil heterogeneities resulted in a synergistic effect on the variability in nitrate leaching. An increase in irrigation level did not alleviate the negative effects of irrigation and soil heterogeneities on variability in nitrate leaching. A low drip system uniformity of 60% is not recommended because of the substantially increased risk of nitrate leaching in arid regions. (c) 2019 John Wiley & Sons, Ltd.
英文关键词	heterogeneity saturated hydraulic conductivity nitrogen loss Nemerow average HYDRUS-2D
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000497181700001
WOS关键词	SPRING MAIZE ; IRRIGATION ; NITROGEN ; YIELD ; WATER ; TRANSPORT ; QUALITY
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
EI主题词	2019-11-19
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310923
作者单位	1.Beijing Forestry Univ, State Forest Adm Soil & Water Conservat, Key Lab, Beijing 100083, Peoples R China; 2.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Guan, Hongjie,Li, Jiusheng,Li, Yanfeng. THE SYNERGISTIC EFFECTS OF DRIP SYSTEM UNIFORMITY AND SOIL VARIABILITY ON DRAINAGE AND NITRATE LEACHING UNDER ARID CONDITIONS: A NUMERICAL STUDY[J]. 北京林业大学,2019,68(5):950-960.
APA	Guan, Hongjie,Li, Jiusheng,&Li, Yanfeng.(2019).THE SYNERGISTIC EFFECTS OF DRIP SYSTEM UNIFORMITY AND SOIL VARIABILITY ON DRAINAGE AND NITRATE LEACHING UNDER ARID CONDITIONS: A NUMERICAL STUDY.IRRIGATION AND DRAINAGE,68(5),950-960.
MLA	Guan, Hongjie,et al."THE SYNERGISTIC EFFECTS OF DRIP SYSTEM UNIFORMITY AND SOIL VARIABILITY ON DRAINAGE AND NITRATE LEACHING UNDER ARID CONDITIONS: A NUMERICAL STUDY".IRRIGATION AND DRAINAGE 68.5(2019):950-960.