Forest Types Classification on The basis of IVI (Importance Value Index) With Respect to Aspects in khanikan (Chalous Lowland Forest

Khanikan Forest is located in South of Nowshahr and Chalous cities. This Forest was quantitatively analyzed. In order to determine forest types and spatial patterns of tree and shrub forest species, sixty plots (400 m2) were taken by a systematic random sample method. Result showed that the number of plots in North, South, East, West, North west, North east, South west, and South east aspects were %18.6, %3.38, %10.1, %11.8, %18.6, %23.72, %8.4, and %54, respectively. On the basis of IVI (Importance Value Index), dominant forest type of study area was characterized Carpinus betulus (IVI=152.80) and Parrotia persica (IVI=85.34). This forest types were observed in whole of aspects. Spatial patterns classification of species was distributed by clumped and random forest type characteristics