Water flow and salt transport in bare saline-sodic soils subjected to evaporation and intermittent irrigation with saline/distilled water

doi:10.1002/ldr.3306

	Water flow and salt transport in bare saline-sodic soils subjected to evaporation and intermittent irrigation with saline/distilled water
	Liu, Dongdong 1; She, Dongli 2,3; Mu, Xingmin 2,4
刊名	LAND DEGRADATION & DEVELOPMENT
	2019-06-01
卷号	30 期号:10 页码:1204-1218
关键词	infiltration irrigation water salinity saline-sodic soil salt transport water flow
ISSN号	1085-3278
DOI	10.1002/ldr.3306
通讯作者	She, Dongli(shedongli@gmail.com)
英文摘要	Sustainable development of coastal reclamation areas is severely restricted by the high soil salt content and irrigation water salinity. We investigated the water flow and salt transport in open soil columns subjected to evaporation and intermittent irrigation with saline/distilled water by long-term wetting-drying cycles. The study included two different soil materials (silt loam and silty clay) with four to five soil sodicity levels. Three groups of experiments with three replicates were imposed: silt loam x 5 sodicity level, silty clay x 5 sodicity level, and 2 soil textures x 5 irrigation water qualities. Three irrigations were conducted in Spring to early Autumn (March 2, June 30, and September 8), whereas the soil columns were subjected to the natural evaporation without rainfall throughout the period September 9 to March 1. The average daily soil evaporation rate significantly decreased with the soil clay content (pr = -0.55; P < 0.001), soil exchangeable sodium percentage (pr = -0.54; P < 0.001), and irrigation water salinity (pr = -0.32; P < 0.001). The soil properties were the major factors responsible for controlling evaporation, whereas the irrigation water salinity was the less important factor. Soil salt distribution was significantly affected by the soil clay content (pr = 0.82; P < 0.001), soil depth (pr = 0.68; P < 0.05), soil exchangeable sodium percentage (pr = 0.85; P < 0.001), and irrigation water salinity (pr = 0.37; P < 0.001). The magnitudes of the steady-state infiltration rate i(c) and soil saturated hydraulic conductivity Ks were largely reduced by wetting-drying cycles, especially for the silty clay. Understanding water flow and salt transport in saline-sodic soils subjected to evaporation and intermittent irrigation with saline/distilled water is important for improving the soil desalination project and strategy.
资助项目	National Natural Science Foundation of China[51679062] ; Science and Technology Funding of Water Resources Department of Guizhou Province[KT201803] ; Guizhou Science and Talent Project[[2017] 5788] ; CAS Light of West China Program ; Scientific Research Foundation for Talent Introduced in Guizhou University[2017-75] ; First Class Subject Foundation of Guizhou Province[GNYL[2017]007]
WOS关键词	POROUS-MEDIA ; RAINFALL ; INFILTRATION ; RECLAMATION ; EROSION ; SLOPES ; PRECIPITATION ; DYNAMICS ; MODELS ; CYCLES
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
语种	英语
出版者	WILEY
WOS记录号	WOS:000469980700006
资助机构	National Natural Science Foundation of China ; Science and Technology Funding of Water Resources Department of Guizhou Province ; Guizhou Science and Talent Project ; CAS Light of West China Program ; Scientific Research Foundation for Talent Introduced in Guizhou University ; First Class Subject Foundation of Guizhou Province
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/59002]
专题	中国科学院地理科学与资源研究所
通讯作者	She, Dongli
作者单位	1.Guizhou Univ, Coll Resource & Environm Engn, Key Lab Karst Environm & Geohazard Prevent, Guiyang 550025, Guizhou, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Hohai Univ, Coll Agr Engn, Nanjing 210098, Jiangsu, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Dongdong,She, Dongli,Mu, Xingmin. Water flow and salt transport in bare saline-sodic soils subjected to evaporation and intermittent irrigation with saline/distilled water[J]. LAND DEGRADATION & DEVELOPMENT,2019,30(10):1204-1218.
APA	Liu, Dongdong,She, Dongli,&Mu, Xingmin.(2019).Water flow and salt transport in bare saline-sodic soils subjected to evaporation and intermittent irrigation with saline/distilled water.LAND DEGRADATION & DEVELOPMENT,30(10),1204-1218.
MLA	Liu, Dongdong,et al."Water flow and salt transport in bare saline-sodic soils subjected to evaporation and intermittent irrigation with saline/distilled water".LAND DEGRADATION & DEVELOPMENT 30.10(2019):1204-1218.