Use of Airborne Hyperspectral Imagery to Map Soil Properties in Tilled Agricultural Fields
Joint Authors
Hively, W. Dean
McCarty, Gregory W.
Reeves, James B.
Lang, Megan W.
Oesterling, Robert A.
Delwiche, Stephen R.
Source
Applied and Environmental Soil Science
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-06-06
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Earth Science , Water and Environment
Abstract EN
Soil hyperspectral reflectance imagery was obtained for six tilled (soil) agricultural fields using an airborne imaging spectrometer (400–2450 nm, ~10 nm resolution, 2.5 m spatial resolution).
Surface soil samples (n=315) were analyzed for carbon content, particle size distribution, and 15 agronomically important elements (Mehlich-III extraction).
When partial least squares (PLS) regression of imagery-derived reflectance spectra was used to predict analyte concentrations, 13 of the 19 analytes were predicted with R2>0.50, including carbon (0.65), aluminum (0.76), iron (0.75), and silt content (0.79).
Comparison of 15 spectral math preprocessing treatments showed that a simple first derivative worked well for nearly all analytes.
The resulting PLS factors were exported as a vector of coefficients and used to calculate predicted maps of soil properties for each field.
Image smoothing with a 3×3 low-pass filter prior to spectral data extraction improved prediction accuracy.
The resulting raster maps showed variation associated with topographic factors, indicating the effect of soil redistribution and moisture regime on in-field spatial variability.
High-resolution maps of soil analyte concentrations can be used to improve precision environmental management of farmlands.
American Psychological Association (APA)
Hively, W. Dean& McCarty, Gregory W.& Reeves, James B.& Lang, Megan W.& Oesterling, Robert A.& Delwiche, Stephen R.. 2011. Use of Airborne Hyperspectral Imagery to Map Soil Properties in Tilled Agricultural Fields. Applied and Environmental Soil Science،Vol. 2011, no. 2011, pp.1-13.
https://search.emarefa.net/detail/BIM-989836
Modern Language Association (MLA)
Hively, W. Dean…[et al.]. Use of Airborne Hyperspectral Imagery to Map Soil Properties in Tilled Agricultural Fields. Applied and Environmental Soil Science No. 2011 (2011), pp.1-13.
https://search.emarefa.net/detail/BIM-989836
American Medical Association (AMA)
Hively, W. Dean& McCarty, Gregory W.& Reeves, James B.& Lang, Megan W.& Oesterling, Robert A.& Delwiche, Stephen R.. Use of Airborne Hyperspectral Imagery to Map Soil Properties in Tilled Agricultural Fields. Applied and Environmental Soil Science. 2011. Vol. 2011, no. 2011, pp.1-13.
https://search.emarefa.net/detail/BIM-989836
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-989836