Articles | Volume 8, issue 2
SOIL, 8, 467–486, 2022
https://doi.org/10.5194/soil-8-467-2022
SOIL, 8, 467–486, 2022
https://doi.org/10.5194/soil-8-467-2022
Original research article
18 Jul 2022
Original research article | 18 Jul 2022

Miniaturised visible and near-infrared spectrometers for assessing soil health indicators in mine site rehabilitation

Zefang Shen et al.

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We compared miniaturised visible and near-infrared spectrometers to a portable visible–near-infrared instrument, which is more expensive. Statistical and machine learning algorithms were used to model 29 key soil health indicators. Accuracy of the miniaturised spectrometers was comparable to the portable system. Soil spectroscopy with these tiny sensors is cost-effective and could diagnose soil health, help monitor soil rehabilitation, and deliver positive environmental and economic outcomes.