Arid
DOI10.1007/s40333-022-0052-6
Integrating multiple electromagnetic data to map spatiotemporal variability of soil salinity in Kairouan region, Central Tunisia
Zarai, Besma; Walter, Christian; Michot, Didier; Montoroi, Jean P.; Hachicha, Mohamed
Corresponding AuthorZarai, B (corresponding author),Univ Carthage, Natl Res Inst Rural Engn Water & Forestry LR16INR, Nonconvent Water Valorizat, Ariana 2080, Tunisia. ; Zarai, B (corresponding author),Univ Carthage, Natl Inst Agron Tunis, Nicolle 1082, Tunisia.
JournalJOURNAL OF ARID LAND
ISSN1674-6767
EISSN2194-7783
Year Published2022-02
Abstract in EnglishSoil salinization is a major problem affecting soils and threatening agricultural sustainability in arid and semi-arid regions, which makes it necessary to establish an efficient strategy to manage soil salinity and confront economic challenges that arise from it. Saline soil recovery involving drainage of shallow saline groundwater and the removal of soil salts by natural rainfall or by irrigation are good strategies for the reclamation of salty soil. To develop suitable management strategies for salty soil reclamation, it is essential to improve soil salinity assessment process/mechanism and to adopt new approaches and techniques. This study mapped a recovered area of 7200 m(2) to assess and verify variations in soil salinity in space and time in Kairouan region in Central Tunisia, taking into account the thickness of soil materials. Two electromagnetic conductivity meters (EM38 and EM31) were used to measure the electrical conductivity of saturated soil-paste extract (ECe) and apparent electrical conductivity (ECa). Multiple linear regression was established between ECe and ECa, and it was revealed that ECa-EM38 is optimal for ECe prediction in the surface soils. Salinity maps demonstrated that the spatial structure of soil salinity in the region of interest was relatively unchanged but varied temporally. Variation in salinity at the soil surface was greater than that at a depth. These findings can not only be used to track soil salinity variations and their significance in the field but also help to identify the spatial and temporal features of soil salinity, thus improving the efficiency of soil management.
Keyword in Englishelectrical conductivity soil salinity saturated paste extract apparent electrical conductivity multiple linear regression Tunisia
SubtypeArticle ; Early Access
Language英语
Indexed BySCI-E
WOS IDWOS:000761139600001
WOS KeywordELECTRICAL-CONDUCTIVITY ; SPATIAL VARIABILITY ; DEPTH RELATIONS ; VARIOGRAMS ; WATER ; IRRIGATION ; INVERSION ; DYNAMICS ; PREDICTION ; TRENDS
WOS SubjectEnvironmental Sciences
WOS Research AreaEnvironmental Sciences & Ecology
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/377224
Affiliation[Zarai, Besma; Hachicha, Mohamed] Univ Carthage, Natl Res Inst Rural Engn Water & Forestry LR16INR, Nonconvent Water Valorizat, Ariana 2080, Tunisia; [Zarai, Besma] Univ Carthage, Natl Inst Agron Tunis, Nicolle 1082, Tunisia; [Walter, Christian; Michot, Didier] INRAE, Mixed Res Unit Soil Agro & Hydrosyst Spatializat, SAS, Natl Res Inst Agr Food & Environm, F-35000 Rennes, France; [Montoroi, Jean P.] Bondy Res & Dev Inst, F-93140 Bondy, France
Recommended Citation
GB/T 7714
Zarai, Besma,Walter, Christian,Michot, Didier,et al. Integrating multiple electromagnetic data to map spatiotemporal variability of soil salinity in Kairouan region, Central Tunisia[J],2022.
APA Zarai, Besma,Walter, Christian,Michot, Didier,Montoroi, Jean P.,&Hachicha, Mohamed.(2022).Integrating multiple electromagnetic data to map spatiotemporal variability of soil salinity in Kairouan region, Central Tunisia.JOURNAL OF ARID LAND.
MLA Zarai, Besma,et al."Integrating multiple electromagnetic data to map spatiotemporal variability of soil salinity in Kairouan region, Central Tunisia".JOURNAL OF ARID LAND (2022).
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