Sentinel-2 Satellite Imagery-Based Assessment of Soil Salinity in Irrigated Rice Fields in Portugal

نویسندگان

چکیده

Salinization is a major soil degradation threat in irrigated lands worldwide. In Portugal, it affects several pockets of agricultural areas, but the spatial distribution and intensity salinity are not well known. Unlike conventional approaches to appraise salinity, remote sensing multispectral data have great potential for detecting, monitoring, investigating problems areas. This study explores assessment rice cultivation fields using two types multispectral-based indices calculated from Sentinel-2 satellite imagery: (i) vegetation (Normalized Difference Vegetation Index, Green Normalized Generalized Index Soil Adjusted Index), monitor indirect effect on growth; (ii) indicators, namely those based visible near-infrared bands Salinity Index) shortwave infrared (Salinity ASTER). The Lower Mondego Valley (Central Portugal) period 2017–2018. Results revealed that can be used mapping constitute valuable tool areas affected by issues. As there less reported inventorying extent such this innovative approach allowed technology add understanding undertaking more studies spatially temporally.

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ژورنال

عنوان ژورنال: Agriculture

سال: 2022

ISSN: ['2077-0472']

DOI: https://doi.org/10.3390/agriculture12091490