干旱区生态环境知识资源中心(Arid): Dynamic Simulation of Soil Salt Transport in Arid Irrigation Areas under the HYDRUS-2D-Based Rotation Irrigation Mode

Arid

DOI	10.1007/s11269-019-02312-w
	Dynamic Simulation of Soil Salt Transport in Arid Irrigation Areas under the HYDRUS-2D-Based Rotation Irrigation Mode
	Xu, Cundong 1; Tian, Junjiao 1; Wang, Guoxia 2; Nie, Junkun 1; Zhang, Hongyang 1
通讯作者	Tian, Junjiao
来源期刊	WATER RESOURCES MANAGEMENT
ISSN	0920-4741
EISSN	1573-1650
出版年	2019
卷号	33 期号:10 页码:3499-3512
英文摘要	This research aims to explore the dynamic transport of water and salt in soil under different irrigation modes and disclose the desalting effect of different irrigation factors in inland arid irrigation areas. Jingdian Irrigation District in Gansu Province, which is located in the arid region of Northwest China, is selected as a typical experimental area. Soil water and salt dynamic migration model is constructed based on HYDRUS-2D software, and field irrigation experiments are designed according to actual irrigation conditions in crop growth period. The model is used to simulate the salt transport process between saturated soil and unsaturated soil as well as the effects of different irrigation quotas, irrigation rounds and quota allocations on soil desalting. Through simulation, the vertical movement pattern of water and salt in the soil of the test area is analyzed, and the optimal design of the soil desalting irrigation plan is carried out. The results demonstrate that: after two-round irrigation, the average soil salinity of the tillage layer at each test points decreases significantly under evapotranspiration; the infiltration of irrigation water has an obvious impact on soil desalting; the deviation between the simulated and the measured value is less than 0.5%, which proves the model fitting result reliable; with fixed irrigation cycle and times, the soil desalting efficiency is higher when the irrigation quota falls in the range of 4000 6000 m(3)/hm(2); when the first round of irrigation water only saturates the moisture content and gradually increases the irrigation quota in the subsequent rounds, it is more conducive to the dissolution and discharge of soil salinity. In summary, the results of this study can provide technical support for the protection of water and soil resources, as well as the improvement of saline-alkali land in inland arid irrigation areas.
英文关键词	Arid irrigation area Rotation flow HYDRUS-2D model Water and salt movement Desalination effect
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000481790200010
WOS关键词	DRIP IRRIGATION ; WATER-FLOW
WOS类目	Engineering, Civil ; Water Resources
WOS研究方向	Engineering ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219284
作者单位	1.North China Univ Water Resources & Elect Power, Collaborat Innovat Ctr Water Resources Efficient, 136 Jinshui Rd, Zhengzhou 450045, Henan, Peoples R China; 2.Dingshengxiang Pumps Ind Ltd Co, Zhengzhou, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Xu, Cundong,Tian, Junjiao,Wang, Guoxia,et al. Dynamic Simulation of Soil Salt Transport in Arid Irrigation Areas under the HYDRUS-2D-Based Rotation Irrigation Mode[J],2019,33(10):3499-3512.
APA	Xu, Cundong,Tian, Junjiao,Wang, Guoxia,Nie, Junkun,&Zhang, Hongyang.(2019).Dynamic Simulation of Soil Salt Transport in Arid Irrigation Areas under the HYDRUS-2D-Based Rotation Irrigation Mode.WATER RESOURCES MANAGEMENT,33(10),3499-3512.
MLA	Xu, Cundong,et al."Dynamic Simulation of Soil Salt Transport in Arid Irrigation Areas under the HYDRUS-2D-Based Rotation Irrigation Mode".WATER RESOURCES MANAGEMENT 33.10(2019):3499-3512.