Location of Bare Soil Surface and Soil Line on the RED–NIR Spectral Plane
- Authors: Koroleva P.V.1, Rukhovich D.I.1, Rukhovich A.D.2, Rukhovich D.D.2, Kulyanitsa A.L.3, Trubnikov A.V.4, Kalinina N.V.1, Simakova M.S.1
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Affiliations:
- Dokuchaev Soil Science Institute
- Lomonosov Moscow State University
- National University of Science and Technology
- LLC “Agrokultura”
- Issue: Vol 50, No 12 (2017)
- Pages: 1375-1385
- Section: Genesis and Geography of Soils
- URL: https://journals.rcsi.science/1064-2293/article/view/224265
- DOI: https://doi.org/10.1134/S1064229317100040
- ID: 224265
Cite item
Abstract
Soil as a separate natural body occupies certain area with its own set of spectral characteristics within the RED–NIR spectral space. This is an ellipse-shaped area, and its semi-major axis is the soil line for a satellite image. The spectral area for a bare soil surface is neighboring to the areas of black carbon, straw, vegetating plants, and missing RED–NIR values. A reliable separation of the bare soil surface within the spectral space is possible with the technology of spectral neighborhood of soil line. The accuracy of this method is 90%. The determination of the bare soil surface using vegetation indices, both relative (NDVI), and perpendicular (PVI), is incorrect; the accuracy of these methods does not exceed 65%, and for most of the survey seasons it may be lower than 50%. The flat part of the “tasseled cap” described as the soil line, is not a synonym for the area of the bare soil surface. The bare soil surface on the RED–NIR plots occupies significantly smaller areas than the area of soil line according to Kauth and Thomas.
About the authors
P. V. Koroleva
Dokuchaev Soil Science Institute
Email: landmap@yandex.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
D. I. Rukhovich
Dokuchaev Soil Science Institute
Author for correspondence.
Email: landmap@yandex.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
A. D. Rukhovich
Lomonosov Moscow State University
Email: landmap@yandex.ru
Russian Federation, Leninskie gory 1, Moscow, 119991
D. D. Rukhovich
Lomonosov Moscow State University
Email: landmap@yandex.ru
Russian Federation, Leninskie gory 1, Moscow, 119991
A. L. Kulyanitsa
National University of Science and Technology
Email: landmap@yandex.ru
Russian Federation, Leninskii prosp. 4, Moscow, 119049
A. V. Trubnikov
LLC “Agrokultura”
Email: landmap@yandex.ru
Russian Federation, Khamovnicheskii val, 18-25, Moscow, 119270
N. V. Kalinina
Dokuchaev Soil Science Institute
Email: landmap@yandex.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
M. S. Simakova
Dokuchaev Soil Science Institute
Email: landmap@yandex.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017