Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386063997> ?p ?o ?g. }
- W4386063997 endingPage "107440" @default.
- W4386063997 startingPage "107440" @default.
- W4386063997 abstract "Urmia Lake in Iran has been gradually drying up since the 2000 s, revealing soil that was once underwater. There is limited research on how this drying process affects the distribution of soil chemical ripening in the lakebed sediments. To investigate this, 131 surface soil samples were collected in July 2017 from six zones based on their distance from the lake's shoreline. Elemental concentrations in the samples were measured using a portable X-ray fluorescence (XRF) spectrometer. Five geochemical indices (GCIs) were calculated: Titanium/Zirconium, Barium/Strontium, Silicon/Aluminium, Silicon/R2O3, and the Darmody index. A remote sensing image (Landsat-8 OLI) from the same sampling period was used as environmental covariates to explain the spatial distribution of GCIs. Random forests (RF) and cubist tree models were employed to model and map these GCIs. The bootstrapping method was used to assess the uncertainty of the maps. Results indicated that the RF model performed better than the cubist model based on the concordance values in the validation dataset. Remotely sensed clay minerals ratio and normalized burn ratio were identified as the most significant covariates in making predictions. The study found that the distribution of all geochemical indices was directly related to their distance from the shoreline. Ba/Sr emerged as the best index for detecting soil chemical ripening in the study area. The index displayed the most significant differences between the drying zones. This research demonstrated that combining satellite imagery with GCIs using the digital soil mapping (DSM) technique can effectively detect soil ripening progression." @default.
- W4386063997 created "2023-08-23" @default.
- W4386063997 creator A5014467167 @default.
- W4386063997 creator A5051455406 @default.
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- W4386063997 creator A5057877002 @default.
- W4386063997 creator A5061323171 @default.
- W4386063997 creator A5086171127 @default.
- W4386063997 date "2023-11-01" @default.
- W4386063997 modified "2023-09-26" @default.
- W4386063997 title "Uncovering the effects of Urmia Lake desiccation on soil chemical ripening using advanced mapping techniques" @default.
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