Abstract
It has become a trend to apply remote sensing technology to the monitoring of soil salinization to obtain soil salinization information. This article reviews the research progress in data selection, spectral feature indexes, and retrieval methods in soil salt monitoring by remote sensing. The study pointed out that with the development of 3S technology, remote sensing technology has broad application prospects in soil salinization monitoring. The combination of remote sensing and electromagnetic induction technology, as well as the collaborative inversion of soil salinity from multi-source remote sensing data, and the construction of regional, national or global scale monitoring models will be the future development research direction of soil salinity monitoring.
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