Počet záznamů: 1  

Use of Landsat images for yield evaluation within a small plot

  1. 1.
    0434120 - ÚVGZ 2015 RIV CZ eng J - Článek v odborném periodiku
    Kumhálová, J. - Zemek, František - Novák, P. - Brovkina, O. - Mayerová, M.
    Use of Landsat images for yield evaluation within a small plot.
    Plant, Soil and Environment. Roč. 60, č. 11 (2014), S01-S06. ISSN 1214-1178. E-ISSN 1805-9368
    Institucionální podpora: RVO:67179843
    Klíčová slova: vegetation indices * topography * plant variability * growth stage * weather conditions
    Kód oboru RIV: EH - Ekologie - společenstva
    Impakt faktor: 1.226, rok: 2014

    Many factors can influence crop yield. One of the most important factors is topography, which can play a crucial role especially in dry years. Plant variability can be monitored by many methods. This paper evaluates the suitability of vegetation indices derived from satellite Landsat 5 TM data in comparison with yield, curvature and topography wetness index over a relatively small field (11.5 ha). Imageries were chosen from the years 2006 and 2010, when oat was grown and from 2005 and 2011, when winter wheat was grown. These images were taken in June in the same growth stage for every crop. It was confirmed that derived indices from Landsat images can be used for comparison with yield and selected topographic attributes and it can explain yield variability, which can be influenced by water distribution during growth stages. Correlation coefficient between moisture stress index and winter wheat yield was –0.816 in the image acquisition date of 4. 6. 2011.
    Trvalý link: http://hdl.handle.net/11104/0238266

     
     
Počet záznamů: 1  

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