The use of derivative vegetation indices for the elimination of interferences caused by soil reflection in remote sensing of vegetative cover

1Kochubey, SM, 2Kazantsev, TA, 3Donets, VV
1Institute of Plant Physiology and Genetics of the National Academy of Sciences of Ukraine, Kyiv
2Institute of Plant Physiology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
3Corporation «Research and Production Enterprise «Arsenal», Kyiv, Ukraine
Kosm. nauka tehnol. 2008, 14 ;(3):069-074
Publication Language: Russian
Effectiveness of derivative vegetation index for chlorophyll estimation in oil-vegetation systems with incomplete soil covering was tested. We measured reflectance spectra for the model systems consisting of plant leaves with various chlorophyll content and soil with various brightness. Distinctions between chlorophyll values estimated for 25 % and 100 % soil covering did not significantly exceed the error of regression formula used for the chlorophyll estimation. Our results prove the capability of the proposed approach for testing crops with a low level of soil covering. The field reflectance measurements of crops with various growing density confirm the laboratory results.
Keywords: chlorophyll, density, regression formula
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