Advancing Soil Organic Carbon and Total Nitrogen Modelling in Peatlands: The Impact of Environmental Variable Resolution and vis-NIR Spectroscopy Integration

Advancing Soil Organic Carbon and Total Nitrogen Modelling in Peatlands: The Impact of Environmental Variable Resolution and vis-NIR Spectroscopy Integration

Visible and near-infrared (vis-NIR) spectroscopy has proven to be a straightforward method for sample preparation and scaling soil testing, while the increasing availability of high-resolution remote sensing (RS) data has further facilitated the understanding of spatial variability in soil organic c...

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Veröffentlicht in:Agronomy (Basel) 2023-07, Vol.13 (7), p.1800
Hauptverfasser: Mendes, Wanderson de Sousa, Sommer, Michael
Format: Artikel
Sprache:eng
Schlagworte:
Biogeochemical cycles
Carbon
Carbon content
Cores
diffuse reflectance spectroscopy
digital elevation model
Digital Elevation Models
Environmental impact
Global temperature changes
High resolution
Infrared spectroscopy
Laboratories
Lidar
Machine learning
Modelling
Near infrared radiation
Nitrogen
Optical radar
Organic carbon
Organic soils
Peat
Peat-bogs
Peatlands
proximal sensing
Remote sensing
Sample preparation
Soil management
Soil mapping
Soil sciences
soil spectroscopy
Soil testing
Soils
Spectroscopy
Spectrum analysis
Sustainability management
Variables
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Zusammenfassung:Visible and near-infrared (vis-NIR) spectroscopy has proven to be a straightforward method for sample preparation and scaling soil testing, while the increasing availability of high-resolution remote sensing (RS) data has further facilitated the understanding of spatial variability in soil organic carbon (SOC) and total nitrogen (TN) across landscapes. However, the impact of combining vis-NIR spectroscopy with high-resolution RS data for SOC and TN prediction remains an open question. This study evaluated the effects of incorporating a high-resolution LiDAR-derived digital elevation model (DEM) and a medium-resolution SRTM-derived DEM with vis-NIR spectroscopy for predicting SOC and TN in peatlands. A total of 57 soil cores, comprising 262 samples from various horizons (
ISSN:2073-4395
2073-4395
DOI:10.3390/agronomy13071800