Forests protect against natural hazards and are a sustainable wood. The objective of the Kyrgyz Republic is to increase the country`s forest cover. The selection of suitable areas for afforestation is difficult in an environment characterized by an arid/continental climate. The aims of this thesis are to define the potential treeline and suitable forest areas of forest growth in the Chong Kemin National Park. ArcGis spatial analyst tools are used to analyze a map of the current forest distribution, a very high resolution satellite image, a digital terrain model and a set of climate data comprising monthly mean values for precipitation, temperature and global radiation. Forest maps were digitalized to outline forest areas and the species distribution in the study area of 17,850 ha. Several climatic and morphologic parameters were determinated from the input data and the climate-dataset was further refined with Kriging interpolation. The treeline was found at an elevation of 2,900 m.a.s.l. The five forest types with Shrenks spruce (Picea shrenkiana), birch (Betula tianschanica), juniper (Juniperus sp.), bushes and plantations are distinguished with different spatial distribution pattern. The different forest types showed to grow under distinct climatic conditions. A logistic regression model was developed to calculate the probability of forest growth in the context of the above-mentioned parameters. The topographic characteristics slope, aspect and elevation, together with solar radiation are found to be the most suitable parameters to define the probability of forest growth (80 % model accuracy). A map of the estimated forest area was produced and compared with the actual forest area to identify differences to the current forest distribution. The model proposes around 18 % of the study area suitable for forest growth, were no forests stock currently. Discrepancies can rather be caused by human impacts or by morphological and climatic peculiarities.