干旱区生态环境知识资源中心(Arid): Soil Salinity Resistance Effect on Evaporation

Arid

DOI	10.1134/S1064229319050089
	Soil Salinity Resistance Effect on Evaporation
	Mahdavi, S. M.1; Fujimaki, H.2
通讯作者	Mahdavi, S. M.
来源期刊	EURASIAN SOIL SCIENCE
ISSN	1064-2293
EISSN	1556-195X
出版年	2019
卷号	52 期号:5 页码:526-534
英文摘要	Soil salinity is an increasing threat to agriculture and is a major factor in reducing plant productivity in arid and semi-arid regions. Knowledge of the transport process of mass and energy in subsurface soil is vital for understanding the environmental and economic impact of agricultural practices in these areas. A finite difference model, WASH_1D, was applied to evaluate various transport mechanisms associated with temporal variations in soil water content and soil salinity in 5 cm sandy soil columns. Experiment was conducted in a laboratory with fixed temperature and relative humidity. Soil columns were initially saturated with distilled water or 3000 ppm NaCl solution. The accuracy of the model was evaluated using measured soil water content and soil salinity at seven depths 0.2, 0.6, 1.2, 1.7, 2.4, 3.4 and 4.4 cm at the end of the experiment. Simulated cumulative evaporation was compared with the data measured with an electronic balance. Results showed that the liquid flux of distilled water treatment was sharply declined sooner than NaCl solution treatment which was associated with decreasing in moisture diffusivity. The contribution of the water vapor flux to the total moisture flux was 0.01 and 0.2% for distilled water and solution treatments, respectively. The RMSE values between simulated and measured cumulative evaporation lines were 0.77 and 1.08 (g) for the distilled water and solution treatments, respectively. It was observed that the solution treatment significantly reduced total cumulative evaporation up to 11% as compared to the distilled water treatment. Simulated results demonstrated that the model predicted soil water content and salinity with adequate accuracy.
英文关键词	arid region salinity stress vapor flux WASH_1D
类型	Article
语种	英语
国家	Iran ; Japan
收录类别	SCI-E
WOS记录号	WOS:000471016500006
WOS关键词	WATER FLUXES ; BARE SOIL ; HEAT ; TRANSPORT ; VAPOR ; FLOW ; MOISTURE ; MODEL
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215575
作者单位	1.Univ Tabriz, Dept Soil Sci, Tabriz, Iran; 2.Tottori Univ, Arid Land Res Ctr, Tottori, Japan
推荐引用方式 GB/T 7714	Mahdavi, S. M.,Fujimaki, H.. Soil Salinity Resistance Effect on Evaporation[J],2019,52(5):526-534.
APA	Mahdavi, S. M.,&Fujimaki, H..(2019).Soil Salinity Resistance Effect on Evaporation.EURASIAN SOIL SCIENCE,52(5),526-534.
MLA	Mahdavi, S. M.,et al."Soil Salinity Resistance Effect on Evaporation".EURASIAN SOIL SCIENCE 52.5(2019):526-534.