干旱区生态环境知识资源中心(Arid): Simulation of Water and Salt Dynamics in the Soil Profile in the Semi-Arid Region of Tunisia-Evaluation of the Irrigation Method for a Tomato Crop

Arid

DOI	10.3390/w12061594
	Simulation of Water and Salt Dynamics in the Soil Profile in the Semi-Arid Region of Tunisia-Evaluation of the Irrigation Method for a Tomato Crop
	Kanzari, Sabri 1; Daghari, Issam 2; Simunek, Jiri 3; Younes, Anis 4; Ilahy, Riadh 5; Ben Mariem, Sana 1; Rezig, Mourad 1; Ben Nouna, Bechir 1; Bahrouni, Hassouna 1; Ben Abdallah, Mohamed Ali 1
通讯作者	Simunek, Jiri
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:6
英文摘要	In Tunisia, water used for irrigation is often saline, increasing the risk of salinization for soils and crops. In this study, an experiment was conducted on a tomato crop cultivated on a silty-clay soil irrigated with three different water qualities: 0, 3.5, and 7 dS center dot m(-1). Experimental data were then used to calibrate and validate the Hydrus-1D model, which simulates water flow and salt transfer in soils. The successfully-calibrated and validated model was then used to study the combined effects of the soil osmotic and soil matrix potentials on root water uptake. The values of the root mean square error (RMSE), the coefficient of determination (CD), the modeling efficiency (EF), and the coefficient of residual mass (CRM) were close to their optimal values for both soil water content and soil electrical conductivity profiles, indicating the reliability of the model to reproduce water and salt dynamics. Relative yields (Y-r), indirectly estimated using actual and potential root water uptake (transpiration), indicated that the multiplicative stress response model (using the S-shape model) satisfactorily simulates measured yields and reproduces the effects of irrigation with saline waters on crop yields. An alternative scenario using a reduction of water requirements by 50% was investigated to assess an irrigation method with considerable water savings. As the results show that relative yields,Y-r, were only slightly reduced, the crop water requirements estimated by CROPWAT 8.0 must have been overestimated. The variation of the soil salinity in the root zone highlighted a high salinization risk in the short-term when water of 7 dS center dot m(-1)is used for irrigation.
英文关键词	soil salinity saline water unsaturated soil root water uptake Hydrus-1D Tunisia
类型	Article
语种	英语
国家	Tunisia ; USA ; France
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000549458600001
WOS关键词	OPTIMIZATION MODEL ; DRIP IRRIGATION ; MANAGEMENT ; SALINE ; QUALITY ; STRESS
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/2XILL650/319827
作者单位	1.Univ Carthage, Lab Rural Engn, INRGREF, Ariana 2080, Tunisia; 2.INAT, Tunis 1082, Tunisia; 3.Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92521 USA; 4.Univ Strasbourg, CNRS, LHyGES, EOST,ENGEES, F-67084 Strasbourg, France; 5.Univ Carthage, Lab Hort, INRAT, Ariana 2080, Tunisia
推荐引用方式 GB/T 7714	Kanzari, Sabri,Daghari, Issam,Simunek, Jiri,et al. Simulation of Water and Salt Dynamics in the Soil Profile in the Semi-Arid Region of Tunisia-Evaluation of the Irrigation Method for a Tomato Crop[J],2020,12(6).
APA	Kanzari, Sabri.,Daghari, Issam.,Simunek, Jiri.,Younes, Anis.,Ilahy, Riadh.,...&Ben Abdallah, Mohamed Ali.(2020).Simulation of Water and Salt Dynamics in the Soil Profile in the Semi-Arid Region of Tunisia-Evaluation of the Irrigation Method for a Tomato Crop.WATER,12(6).
MLA	Kanzari, Sabri,et al."Simulation of Water and Salt Dynamics in the Soil Profile in the Semi-Arid Region of Tunisia-Evaluation of the Irrigation Method for a Tomato Crop".WATER 12.6(2020).