Abstract:
. Pasak bumi usually grow under the tree canopies. So that the character of its habitat
is assumed to be estimated using several biophysical parameters of the tree canopy around it.
The purpose of this research was to model the suitability of the pasak bumi habitat in the Riam
Kanan conservation forest zone, using a number of biophysical parameters extracted from
Sentinel-2 MSI imagery. Those parameters are Leaf Area Index (LAI), Canopy Chlorophyll
Content (CCC), Canopy Water Content (CWC), Fraction of Vegetation Cover (FVC), and
Fraction of Absorbed Photosynthetically Active Radiation (FAPAR). Ground surveys were
carried out to find the coordinates of pasak bumi using accidental sampling method. Pasak bumi
coordinate points are overlaid with biophysical parameters. Statistical analysis was then applied
to predict the range of population values from each biophysical parameter, using Confidence
Interval (CI) 95%. The results of the research show that CI LAI 2.532-2.772, CI CCC 137.101158.028
gr/cm2,
CI
CWC
0.05-0.057
gr/m
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, CI FVC 0.698-0.737, and CI FAPAR 0.732-0.765.
The values of these biophysical parameters directly describe the biophysical characteristics of
the pasak bumi habitat in the research location. These CI values are then implemented using
binary modelling to predict the habitat of pasak bumi. Based on the results of modelling, it was
found that the area suitable for pasak bumi plants was an area of 1,807.91 hectares. This area has
a proportion of 1.55% of the total area of the conservation zone. To improve accuracy, other
biophysical parameters can be considered to be involved in modelling.
