Bioclimatic Approach at Investigation of Bulgarian Mountains in the Research Works of Prof. DSc Haralampy Tishkov

This study is dedicated to the bioclimatic studies of Prof. DSc Haralampi Tishkov concerning the mountainous territories of the country. The work presents the basic methods covered in the bioclimatic approach of these studies, namely the complex climatic method, the method for studying the stability of weather classes and the degree of contrast of their changes, as well as the method for assessing the degree of suitability for stay of person outdoors. The work provides an overview of the results obtained from the application of these methods to vast sub-mountain and mountain areas in the country, covering hypsometric belts through 200 m starting from 200 m asl. and reaching 2800 m asl.