干旱区生态环境知识资源中心(Arid): Soil Salinity Type Effects on the Relationship between the Electrical Conductivity and Salt Content for 1:5 Soil-to-Water Extract

Arid

DOI	10.3390/su13063395
	Soil Salinity Type Effects on the Relationship between the Electrical Conductivity and Salt Content for 1:5 Soil-to-Water Extract
	Ismayilov, Amin I.; Mamedov, Amrakh I.; Fujimaki, Haruyuki; Tsunekawa, Atsushi; Levy, Guy J.
通讯作者	Mamedov, AI (corresponding author), Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan.
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2021
卷号	13 期号:6
英文摘要	Soil salinity severely affects soil ecosystem quality and crop production in semi-arid and arid regions. A vast quantity of data on soil salinity has been collected by research organizations of the Commonwealth of Independent States (CIS, formerly USSR) and many other countries over the last 70 years, but using them in the current international network (irrigation and reclamation strategy) is complicated. This is because in the CIS countries salinity was expressed by total soluble salts as a percentage on a dry-weight basis (total soluble salts, TSS, %) and eight salinity types (chemistry) determined by the ratios of the anions and cations (Cl-, SO42-, HCO3-, and Na+, Ca2+, Mg2+) in diluted soil water extract (soil/water = 1:5) without assessing electrical conductivity (EC). Measuring the EC (1:5) is more convenient, yet EC is not only affected by the concentration but also characteristics of the ions and the salinity chemistry. The objective of this study was to examine the relationship between EC and TSS of soils in a diluted extract (1:5) for eight classic salinity types. We analyzed extracts (1:5) of 1100 samples of a clayey soil (0-20 cm) collected from cultivated semi-arid and arid regions for EC, TSS, soluble cations (Na+, Ca2+, Mg2+), and anions (HCO3-, Cl-, SO42-). Results revealed that (i) the variation in the proportional relationships (R-2 >= 0.91-0.98) between EC (0.12-5.6 dS m(-1)) and TSS (0.05-2.5%) could be related to salinity type, and (ii) the proportionality coefficient of the relationships (2.2 2-3.16) decreased in the following order of salinity type: SO4 < Cl(SO4)-HCO3 < Cl(HCO3)-SO4 < SO4 (HCO3)-Cl < Cl. The findings suggest that once the salinity type of the soil is established, EC (1:5) values can be safely used for the evaluation of the soil salinity degree in the irrigated land in the context of sustainable soil and crop management.
英文关键词	total dissolved salts salinity chemistry irrigation dryland salinity stress
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000645689200001
WOS关键词	SATURATED PASTE EXTRACTS ; SODICITY ; SUSPENSIONS ; RATIOS ; ECE
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351823
作者单位	[Ismayilov, Amin I.] Azerbaijan Natl Acad Sci ANAS, Inst Soil Sci & Agrichem, Baku AZ1073, Azerbaijan; [Mamedov, Amrakh I.; Fujimaki, Haruyuki; Tsunekawa, Atsushi] Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan; [Levy, Guy J.] ARO, Inst Soil Water & Environm Sci, IL-7505101 Rishon Leziyyon, Israel
推荐引用方式 GB/T 7714	Ismayilov, Amin I.,Mamedov, Amrakh I.,Fujimaki, Haruyuki,et al. Soil Salinity Type Effects on the Relationship between the Electrical Conductivity and Salt Content for 1:5 Soil-to-Water Extract[J],2021,13(6).
APA	Ismayilov, Amin I.,Mamedov, Amrakh I.,Fujimaki, Haruyuki,Tsunekawa, Atsushi,&Levy, Guy J..(2021).Soil Salinity Type Effects on the Relationship between the Electrical Conductivity and Salt Content for 1:5 Soil-to-Water Extract.SUSTAINABILITY,13(6).
MLA	Ismayilov, Amin I.,et al."Soil Salinity Type Effects on the Relationship between the Electrical Conductivity and Salt Content for 1:5 Soil-to-Water Extract".SUSTAINABILITY 13.6(2021).