From Laboratory to Proximal Sensing Spectroscopy for Soil Organic Carbon Estimation—A Review

Rapid and cost-effective soil properties estimations are considered imperative for the monitoring and recording of agricultural soil condition for the implementation of site-specific management practices. Conventional laboratory measurements are costly and time-consuming, and, therefore, cannot be c...

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Bibliographic Details
Published in:Sustainability 2020-01, Vol.12 (2), p.443
Main Authors: Angelopoulou, Theodora, Balafoutis, Athanasios, Zalidis, George, Bochtis, Dionysis
Format: Article
Language:English
Subjects:
Agricultural land
Agricultural management
Analytical chemistry
Calibration
Carbon
Climate change
Environmental monitoring
Laboratories
Organic carbon
Organic matter
Organic soils
Remote sensing
Short wave radiation
Soil conditions
Soil fertility
Soil organic matter
Soil properties
Soil testing
Spectroscopy
Spectrum analysis
Statistical analysis
Statistical methods
Sustainability
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Summary:Rapid and cost-effective soil properties estimations are considered imperative for the monitoring and recording of agricultural soil condition for the implementation of site-specific management practices. Conventional laboratory measurements are costly and time-consuming, and, therefore, cannot be considered appropriate for large datasets. This article reviews laboratory and proximal sensing spectroscopy in the visible and near infrared (VNIR)–short wave infrared (SWIR) wavelength region for soil organic carbon and soil organic matter estimation as an alternative to analytical chemistry measurements. The aim of this work is to report the progress made in the last decade on data preprocessing, calibration approaches, and system configurations used for VNIR-SWIR spectroscopy of soil organic carbon and soil organic matter estimation. We present and compare the results of over fifty selective studies and discuss the factors that affect the accuracy of spectroscopic measurements for both laboratory and in situ applications.
ISSN:2071-1050
2071-1050
DOI:10.3390/su12020443