干旱区生态环境知识资源中心(Arid): Dynamics and Distribution of Soil Salinity under Long-Term Mulched Drip Irrigation in an Arid Area of Northwestern China

Arid

DOI	10.3390/w11061225
	Dynamics and Distribution of Soil Salinity under Long-Term Mulched Drip Irrigation in an Arid Area of Northwestern China
	Guan, Zilong 1,2,3; Jia, Zhifeng 1,2,3; Zhao, Zhiqiang 1,3; You, Qiying 1,2,3
通讯作者	Jia, Zhifeng
来源期刊	WATER
ISSN	2073-4441
出版年	2019
卷号	11 期号:6
英文摘要	Mulched drip irrigation has been widely used in agricultural planting in arid and semi-arid regions. The dynamics and distribution of soil salinity under mulched drip irrigation greatly affect crop growth and yield. However, there are still different views on the distribution and dynamics of soil salinity under long-term mulched drip irrigation due to complex factors (climate, groundwater, irrigation, and soil). Therefore, the soil salinity of newly reclaimed salt wasteland was monitored for 9 years (2008-2016), and the effects of soil water on soil salinity distribution under mulched drip irrigation have also been explored. The results indicated that the soil salinity decreased sharply in 3-4 years of implementation of mulched drip irrigation, and then began to fluctuate to different degrees and showed slight re-accumulation. During the growth period, soil salinity was relatively high at pre-sowing, and after a period of decline soil salinity tends to increase in the late harvest period. The vertical distribution of soil texture had a significant effect on the distribution of soil salinity. Salt accumulated near the soil layer transiting from coarse soil to fine soil. After a single irrigation, the soil water content in the 30-70 cm layer under the cotton plant undergoes a high-low-high' change pattern, and the soil salt firstly moved to the deep layer (below 70 cm), and then showed upward migration tendency with the weakening of irrigation water infiltration. The results may contribute to the scientific extension of mulched drip irrigation and the farmland management under long-term mulched drip irrigation.
英文关键词	arid zone soil salinity long-term mulched drip irrigation soil texture cotton
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000475346300113
WOS关键词	SPATIAL-DISTRIBUTION ; WATER ; TILLAGE ; YIELD ; SALT ; MOISTURE ; FIELD
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219210
作者单位	1.Changan Univ, Sch Environm Sci & Engn, Xian 710054, Shaanxi, Peoples R China; 2.Changan Univ, Inst Water & Dev, Xian 710054, Shaanxi, Peoples R China; 3.Changan Univ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710054, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Guan, Zilong,Jia, Zhifeng,Zhao, Zhiqiang,et al. Dynamics and Distribution of Soil Salinity under Long-Term Mulched Drip Irrigation in an Arid Area of Northwestern China[J],2019,11(6).
APA	Guan, Zilong,Jia, Zhifeng,Zhao, Zhiqiang,&You, Qiying.(2019).Dynamics and Distribution of Soil Salinity under Long-Term Mulched Drip Irrigation in an Arid Area of Northwestern China.WATER,11(6).
MLA	Guan, Zilong,et al."Dynamics and Distribution of Soil Salinity under Long-Term Mulched Drip Irrigation in an Arid Area of Northwestern China".WATER 11.6(2019).