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Effects of shadows on vegetation indices
IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium, 2002An important methodology in the remote sensing of biophysical variables is the use of Spectral Vegetation Indices (SVI). An SVI is an algebraic combination of reflectance values from different wavelength bands to produce a single value. Two SVI are evaluated for their usefulness in determining the Fraction of Absorbed Photosynthetically Active ...
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Probability and performance of vegetation indices
spie newsroom, 2007A vegetation index (VI) is expressed as the ratio of reflectance of an object at the near infrared (x) to its reflectance at the visible red (y) band. It can also be given as a function of this ratio or the ratio of the linear combinations of x and y. VIs are used in mapping vegetation cover with satellite imagery, with high and low values reflecting ...
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Vegetable Distribution and Marketing, Productivity Indicators
Ovidius University Annals, Economic Sciences Series, 2014In recent years, the productivity of agrifood sector rebounded in actuality due to global challenges caused by increasing food demand. Interest in this topic is marked mainly by higher prices of food products due to lower agricultural productivity, cited as one of the causes of the crisis in the long term, [1] and the need to increase productivity ...
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Chemical safety indicators of vegetable products
Far Eastern Agrarian HeraldThe article considers the results of research on chemical safety indicators of vegetable products. The harvest of vegetables was obtained in the peasant farm of A. P. Korneev (Kanikurgan, Blagoveshchensk district), located in the southern agricultural zone of the Zeysko-Bureinskaya plain.
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