Leaf area index (Lai) of the Parthenocissus planch. genus and its impact on the green plot ratio (GnPR)
DOI:
https://doi.org/10.31548/bio2019.05.016Keywords:
LAI, GnPR, species of Parthenocissus Planch. genus, canopy area, total leaf areaAbstract
The Leaf Area Index (LAI) is one of the most commonly used indicators for assessing the assimilation surface of a vegetation and its environmental impact. On this basis, a greening index (GnPR) is calculated, which is used to compare the various vegetation of the studied areas. The purpose of the research was to determine the LAI of the most common representatives of the genus Parthenocissus Planch in Lviv. The degree of influence of the leaf cover of P. tricuspidata ′Veichii′ on the landscaping indicator was found in the example of a closed courtyard. The studies were conducted using biometric methods with subsequent processing using the Arhicad program. The LAI calculated by P. tricuspidata ′Veichii′ and P. quinquifolia ′Engelmanii′ is 1.3 and 2.6, respectively. LAI P. quinquifolia (L.) Planch. is 2.9 and is consistent with the data from the other research. P. tricuspidata ′Veichii′ with an area of 405.05 m2 increases the index (GnPR) of a closed yard of 272.3 m2 on the Levitsky street in 5.9 times.
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