Salt leaching and Iris germanica L. growth in two coastal saline soils under drip irrigation with saline water

doi:10.1016/j.scienta.2018.04.002

	Salt leaching and Iris germanica L. growth in two coastal saline soils under drip irrigation with saline water
	Li, Xiaobin
刊名	SCIENTIA HORTICULTURAE
	2018-07-14
卷号	237 页码:164-168
关键词	Salinity Salt leaching Soil matric potential Reclamation Response
ISSN号	0304-4238
DOI	10.1016/j.scienta.2018.04.002
通讯作者	Li, Xiaobin(lixbin@igsnrr.ac.cn)
英文摘要	Soil salinity and freshwater shortage are two major limiting factors for vegetation construction in coastal saline regions. A field experiment using water-salt regulation method of drip-irrigation with different irrigation water salinity (ECiw; 0.8, 3.1, 4.7, 6.3, and 7.8 dS/m) to plant Iris germanica L., was imposed in two coastal saline soils (sandy loam and silt) during 2013-2015. The regulatory method was scheduled of drip irrigation to control the soil matric potential (SMP). The results showed that soil salinity (ECe, electrical conductivity of the saturation paste extract) decreased from 27 to 30 dS/m to 1.91 and 3.61 dS/m in the 0-95 cm soil profile after 30 months in sandy loam and silt soil, respectively. Soil salinity decreased with times and increased with ECiw increasing, but no significant difference obtained in salt leaching. Survival rates decreased both with times and ECiw, and significant difference occurred in treatments. Survival rate decreased by 2.33% and 2.88% for each unit of EC increasing in the irrigation water in sandy loam saline soil in 2014 and 2015, respectively, and corresponding values were 2.74% and 11.53% in silt saline soil. It was concluded that higher values of SMP should be continuously controlled in both soils in the third year for Iris germanica L., especially in silt soils with low soil infiltration, to maintain a suitable soil salinity environment for root growth and compensate for the decreased osmotic potential caused by irrigation with saline water, and constant high total water potential can be maintained for plant growth.
资助项目	National Key Research and Development Program of China[2016YFC0501304] ; National Key Research and Development Program of China[2016YFC0501305] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences[QYZDJ-SSW-DQC028] ; National Science Foundation for Young Scientists of China[51709251]
WOS关键词	ROSE ROSA-CHINENSIS ; SODIC WATER ; RECLAMATION ; PLANTS ; COTTON ; CHINA
WOS研究方向	Agriculture
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000432761000022
资助机构	National Key Research and Development Program of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; National Science Foundation for Young Scientists of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/54818]
专题	中国科学院地理科学与资源研究所
通讯作者	Li, Xiaobin
作者单位	Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11 A Datun Rd, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaobin. Salt leaching and Iris germanica L. growth in two coastal saline soils under drip irrigation with saline water[J]. SCIENTIA HORTICULTURAE,2018,237:164-168.
APA	Li, Xiaobin.(2018).Salt leaching and Iris germanica L. growth in two coastal saline soils under drip irrigation with saline water.SCIENTIA HORTICULTURAE,237,164-168.
MLA	Li, Xiaobin."Salt leaching and Iris germanica L. growth in two coastal saline soils under drip irrigation with saline water".SCIENTIA HORTICULTURAE 237(2018):164-168.