The constantly increasing average of carbon dioxide (CO2) concentration as one of the most important greenhouse gases, causes the need for an increased protection of forest communities to sequester carbon into terrestrial ecosystems. The main carbon flows in the ecosystem is the gross primary production and respiration. The favorable carbon ratio in nature balances an adequate share between the reserve in the biomass and the source in the soil. Its balance is affected by a large-scale forest decay. The current state of the forest ecosystems is increasingly attributed to the Earths' of climate change. Frequent climate-induced disturbances are manifested by long-term drought, torrential rain or by the destructive effects of the devastating wind. In such disturbed forest vegetation subsequently occurs an increased proclivity to secondary wood damage by biotic malicious factors. Damage caused by insect pests is also a consequence of the late processing of calamitous wood material and is also the result of favorable developmental conditions for subfamily insects. In the mountain spruce forest communities of the High Tatras at an altitude of over 1100 m. n. m. there is now the occurrence of decay from individual trees up to spruce groups. The rapidly changing conditions due to the decay of the splinters along with the development of subsequent succession offer us the opportunity to monitor and compare the carbon flow change in time and space. For this purpose, we established a transect of research pair areas in height profile from 1100 to 1500 meters above sea level. Pair areas represent the growth conditions of damaged and undamaged alpine spruce forest by bark bugs. During two vegetation periods with the use of ventricular method and the PP-systems machine, we observed the development of soil respiration. The measuring equipment was recording the instantaneous amount of CO2 in the closed chamber for 2 minute measurement period. Measurements of soil respiration were repeated on permanently fixed points on adjacent damaged and undamaged areas. How and to what extent they affect the soil respiration in the mountain spruces is the research goal which describes this work.