ANALISIS PERUBAHAN TUTUPAN VEGETASI BERDASARKAN NILAI NDVI DAN FAKTOR BIOFISIK LAHAN DI CAGAR ALAM DOLOK SIBUAL-BUALI
Abstract: The absence of
information about the level of change in vegetation index (NDVI) of forest land
in the Nature Reserve Dolok Sibual-Buali is unclear. The decrease of NDVI would
be related to forest damage. Forest damage will impact on the decrease of
forest functions, especially its function as regulator of water management,
flood prevention, erosion and carbon sequestration. This research was conducted
in Nature Reserve Dolok Sibual-buali in May-September 2009 using Geographic
Information System (GIS), Remote Sensing (RS) and Global Positioning System
(GPS), which are three very useful spatial technology. Spatial analysis was
done by overlaying several spatial data (parameters determining forest damage
vulnerability level) to produce a new mapping units (land units) which will be
used as the unit of analysis. The results showed regional nature reserve area
Dolok Sibual-Buali is well preserved with class area from 0.4 to 0.8 (tropical
rain forest) amounted to 4049.71 hectares, an increase of 32.15% vegetation
cover to the class from 0.4 to 0.8 (tropical rain forest) in the nature reserve
area Dolok Sibual-buali. Based on the analysis, nature reserve area Dolok
Sibual-buali well preserved becausedof biophysical conditions taht forest cover
which is at a high altitude with a moderate to steep slopes and quite far from
the road and also does not have a big river. Causing difficulty of access into the
area and also the absense of conveyace of natural wood.
Penulis: Ardiansyah Putra,
Anita Zaitunah, Muhdi
Kode Jurnal: jpkehutanandd160078
